target/linux/brcm2708/patches-4.1/0025-BCM2708-Add-core-Device-Tree-support.patch

   1 From 73ffc770b510d914757449f9bd52ff5e0b300a52 Mon Sep 17 00:00:00 2001
   2 From: notro <notro@tronnes.org>
   3 Date: Wed, 9 Jul 2014 14:46:08 +0200
   4 Subject: [PATCH 025/121] BCM2708: Add core Device Tree support
   5
   6 Add the bare minimum needed to boot BCM2708 from a Device Tree.
   7
   8 Signed-off-by: Noralf Tronnes <notro@tronnes.org>
   9
  10 BCM2708: DT: change 'axi' nodename to 'soc'
  11
  12 Change DT node named 'axi' to 'soc' so it matches ARCH_BCM2835.
  13 The VC4 bootloader fills in certain properties in the 'axi' subtree,
  14 but since this is part of an upstreaming effort, the name is changed.
  15
  16 Signed-off-by: Noralf Tronnes notro@tronnes.org
  17
  18 BCM2708_DT: Correct length of the peripheral space
  19 ---
  20  arch/arm/boot/dts/Makefile                         |  27 ++
  21  arch/arm/boot/dts/bcm2708-rpi-b-plus.dts           | 140 ++++++
  22  arch/arm/boot/dts/bcm2708-rpi-b.dts                | 130 ++++++
  23  arch/arm/boot/dts/bcm2708-rpi-cm.dts               |  18 +
  24  arch/arm/boot/dts/bcm2708-rpi-cm.dtsi              |  51 +++
  25  arch/arm/boot/dts/bcm2708.dtsi                     |  19 +
  26  arch/arm/boot/dts/bcm2708_common.dtsi              | 230 ++++++++++
  27  arch/arm/boot/dts/bcm2709-rpi-2-b.dts              | 140 ++++++
  28  arch/arm/boot/dts/bcm2709.dtsi                     |  70 +++
  29  arch/arm/boot/dts/bcm2835-rpi-b-plus.dts           |  45 +-
  30  arch/arm/boot/dts/bcm2835-rpi-b.dts                |  29 +-
  31  arch/arm/boot/dts/bcm2835-rpi.dtsi                 |  97 +++-
  32  arch/arm/boot/dts/bcm2835.dtsi                     |  45 +-
  33  arch/arm/boot/dts/overlays/Makefile                |  57 +++
  34  arch/arm/boot/dts/overlays/README                  | 493 +++++++++++++++++++++
  35  arch/arm/boot/dts/overlays/ads7846-overlay.dts     |  83 ++++
  36  .../dts/overlays/bmp085_i2c-sensor-overlay.dts     |  23 +
  37  arch/arm/boot/dts/overlays/dht11-overlay.dts       |  39 ++
  38  arch/arm/boot/dts/overlays/enc28j60-overlay.dts    |  50 +++
  39  .../boot/dts/overlays/hifiberry-amp-overlay.dts    |  39 ++
  40  .../boot/dts/overlays/hifiberry-dac-overlay.dts    |  34 ++
  41  .../dts/overlays/hifiberry-dacplus-overlay.dts     |  39 ++
  42  .../boot/dts/overlays/hifiberry-digi-overlay.dts   |  39 ++
  43  arch/arm/boot/dts/overlays/hy28a-overlay.dts       |  87 ++++
  44  arch/arm/boot/dts/overlays/hy28b-overlay.dts       | 142 ++++++
  45  arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts     |  49 ++
  46  arch/arm/boot/dts/overlays/i2s-mmap-overlay.dts    |  13 +
  47  arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts |  39 ++
  48  .../boot/dts/overlays/iqaudio-dacplus-overlay.dts  |  39 ++
  49  arch/arm/boot/dts/overlays/lirc-rpi-overlay.dts    |  57 +++
  50  .../arm/boot/dts/overlays/mcp2515-can0-overlay.dts |  69 +++
  51  arch/arm/boot/dts/overlays/mmc-overlay.dts         |  19 +
  52  arch/arm/boot/dts/overlays/mz61581-overlay.dts     | 109 +++++
  53  arch/arm/boot/dts/overlays/piscreen-overlay.dts    |  96 ++++
  54  .../dts/overlays/pitft28-resistive-overlay.dts     | 115 +++++
  55  arch/arm/boot/dts/overlays/pps-gpio-overlay.dts    |  34 ++
  56  arch/arm/boot/dts/overlays/rpi-dac-overlay.dts     |  34 ++
  57  arch/arm/boot/dts/overlays/rpi-display-overlay.dts |  82 ++++
  58  arch/arm/boot/dts/overlays/rpi-proto-overlay.dts   |  39 ++
  59  arch/arm/boot/dts/overlays/sdhost-overlay.dts      |  78 ++++
  60  arch/arm/boot/dts/overlays/spi-bcm2708-overlay.dts |  18 +
  61  arch/arm/boot/dts/overlays/spi-bcm2835-overlay.dts |  18 +
  62  arch/arm/boot/dts/overlays/tinylcd35-overlay.dts   | 216 +++++++++
  63  arch/arm/boot/dts/overlays/w1-gpio-overlay.dts     |  39 ++
  64  .../boot/dts/overlays/w1-gpio-pullup-overlay.dts   |  41 ++
  65  45 files changed, 3316 insertions(+), 54 deletions(-)
  66  create mode 100644 arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
  67  create mode 100644 arch/arm/boot/dts/bcm2708-rpi-b.dts
  68  create mode 100755 arch/arm/boot/dts/bcm2708-rpi-cm.dts
  69  create mode 100644 arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
  70  create mode 100644 arch/arm/boot/dts/bcm2708.dtsi
  71  create mode 100644 arch/arm/boot/dts/bcm2708_common.dtsi
  72  create mode 100644 arch/arm/boot/dts/bcm2709-rpi-2-b.dts
  73  create mode 100644 arch/arm/boot/dts/bcm2709.dtsi
  74  create mode 100644 arch/arm/boot/dts/overlays/Makefile
  75  create mode 100644 arch/arm/boot/dts/overlays/README
  76  create mode 100644 arch/arm/boot/dts/overlays/ads7846-overlay.dts
  77  create mode 100644 arch/arm/boot/dts/overlays/bmp085_i2c-sensor-overlay.dts
  78  create mode 100644 arch/arm/boot/dts/overlays/dht11-overlay.dts
  79  create mode 100644 arch/arm/boot/dts/overlays/enc28j60-overlay.dts
  80  create mode 100644 arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts
  81  create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts
  82  create mode 100644 arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts
  83  create mode 100644 arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts
  84  create mode 100644 arch/arm/boot/dts/overlays/hy28a-overlay.dts
  85  create mode 100644 arch/arm/boot/dts/overlays/hy28b-overlay.dts
  86  create mode 100644 arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  87  create mode 100644 arch/arm/boot/dts/overlays/i2s-mmap-overlay.dts
  88  create mode 100644 arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts
  89  create mode 100644 arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts
  90  create mode 100644 arch/arm/boot/dts/overlays/lirc-rpi-overlay.dts
  91  create mode 100755 arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
  92  create mode 100644 arch/arm/boot/dts/overlays/mmc-overlay.dts
  93  create mode 100644 arch/arm/boot/dts/overlays/mz61581-overlay.dts
  94  create mode 100644 arch/arm/boot/dts/overlays/piscreen-overlay.dts
  95  create mode 100644 arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts
  96  create mode 100644 arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
  97  create mode 100644 arch/arm/boot/dts/overlays/rpi-dac-overlay.dts
  98  create mode 100644 arch/arm/boot/dts/overlays/rpi-display-overlay.dts
  99  create mode 100644 arch/arm/boot/dts/overlays/rpi-proto-overlay.dts
 100  create mode 100644 arch/arm/boot/dts/overlays/sdhost-overlay.dts
 101  create mode 100644 arch/arm/boot/dts/overlays/spi-bcm2708-overlay.dts
 102  create mode 100644 arch/arm/boot/dts/overlays/spi-bcm2835-overlay.dts
 103  create mode 100644 arch/arm/boot/dts/overlays/tinylcd35-overlay.dts
 104  create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-overlay.dts
 105  create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts
 106
 107 --- a/arch/arm/boot/dts/Makefile
 108 +++ b/arch/arm/boot/dts/Makefile
 109 @@ -1,5 +1,21 @@
 110  ifeq ($(CONFIG_OF),y)
 111
 112 +dtb-$(CONFIG_BCM2708_DT) += bcm2708-rpi-b.dtb
 113 +dtb-$(CONFIG_BCM2708_DT) += bcm2708-rpi-b-plus.dtb
 114 +dtb-$(CONFIG_BCM2708_DT) += bcm2708-rpi-cm.dtb
 115 +dtb-$(CONFIG_BCM2709_DT) += bcm2709-rpi-2-b.dtb
 116 +
 117 +# Raspberry Pi
 118 +ifeq ($(CONFIG_BCM2708_DT),y)
 119 +   RPI_DT_OVERLAYS=y
 120 +endif
 121 +ifeq ($(CONFIG_BCM2709_DT),y)
 122 +   RPI_DT_OVERLAYS=y
 123 +endif
 124 +ifeq ($(CONFIG_ARCH_BCM2835),y)
 125 +   RPI_DT_OVERLAYS=y
 126 +endif
 127 +
 128  dtb-$(CONFIG_ARCH_ALPINE) += \
 129         alpine-db.dtb
 130  dtb-$(CONFIG_MACH_ASM9260) += \
 131 @@ -660,7 +676,18 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 132         mt6592-evb.dtb \
 133         mt8127-moose.dtb \
 134         mt8135-evbp1.dtb
 135 +
 136 +targets += dtbs dtbs_install
 137 +targets += $(dtb-y)
 138 +
 139  endif
 140
 141  always         := $(dtb-y)
 142  clean-files    := *.dtb
 143 +
 144 +# Enable fixups to support overlays on BCM2708 platforms
 145 +ifeq ($(RPI_DT_OVERLAYS),y)
 146 +       DTC_FLAGS ?= -@
 147 +endif
 148 +
 149 +subdir-y  += overlays
 150 --- /dev/null
 151 +++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
 152 @@ -0,0 +1,140 @@
 153 +/dts-v1/;
 154 +
 155 +/include/ "bcm2708.dtsi"
 156 +
 157 +/ {
 158 +       compatible = "brcm,bcm2708";
 159 +       model = "Raspberry Pi Model B+";
 160 +
 161 +       aliases {
 162 +               soc = &soc;
 163 +               spi0 = &spi0;
 164 +               i2c0 = &i2c0;
 165 +               i2c1 = &i2c1;
 166 +               i2s  = &i2s;
 167 +               gpio = &gpio;
 168 +               intc = &intc;
 169 +               leds = &leds;
 170 +               audio = &audio;
 171 +               sound = &sound;
 172 +               uart0 = &uart0;
 173 +               uart1 = &uart1;
 174 +               clocks = &clocks;
 175 +       };
 176 +
 177 +       sound: sound {
 178 +       };
 179 +};
 180 +
 181 +&gpio {
 182 +       spi0_pins: spi0_pins {
 183 +               brcm,pins = <7 8 9 10 11>;
 184 +               brcm,function = <4>; /* alt0 */
 185 +       };
 186 +
 187 +       i2c0_pins: i2c0 {
 188 +               brcm,pins = <0 1>;
 189 +               brcm,function = <4>;
 190 +       };
 191 +
 192 +       i2c1_pins: i2c1 {
 193 +               brcm,pins = <2 3>;
 194 +               brcm,function = <4>;
 195 +       };
 196 +
 197 +       i2s_pins: i2s {
 198 +               brcm,pins = <18 19 20 21>;
 199 +               brcm,function = <4>; /* alt0 */
 200 +       };
 201 +};
 202 +
 203 +&mmc {
 204 +       status = "okay";
 205 +       bus-width = <4>;
 206 +};
 207 +
 208 +&fb {
 209 +       status = "okay";
 210 +};
 211 +
 212 +&uart0 {
 213 +       status = "okay";
 214 +};
 215 +
 216 +&spi0 {
 217 +       pinctrl-names = "default";
 218 +       pinctrl-0 = <&spi0_pins>;
 219 +
 220 +       spidev@0{
 221 +               compatible = "spidev";
 222 +               reg = <0>;      /* CE0 */
 223 +               #address-cells = <1>;
 224 +               #size-cells = <0>;
 225 +               spi-max-frequency = <500000>;
 226 +       };
 227 +
 228 +       spidev@1{
 229 +               compatible = "spidev";
 230 +               reg = <1>;      /* CE1 */
 231 +               #address-cells = <1>;
 232 +               #size-cells = <0>;
 233 +               spi-max-frequency = <500000>;
 234 +       };
 235 +};
 236 +
 237 +&i2c0 {
 238 +       pinctrl-names = "default";
 239 +       pinctrl-0 = <&i2c0_pins>;
 240 +       clock-frequency = <100000>;
 241 +};
 242 +
 243 +&i2c1 {
 244 +       pinctrl-names = "default";
 245 +       pinctrl-0 = <&i2c1_pins>;
 246 +       clock-frequency = <100000>;
 247 +};
 248 +
 249 +&i2s {
 250 +       #sound-dai-cells = <0>;
 251 +       pinctrl-names = "default";
 252 +       pinctrl-0 = <&i2s_pins>;
 253 +};
 254 +
 255 +&leds {
 256 +       act_led: act {
 257 +               label = "led0";
 258 +               linux,default-trigger = "mmc0";
 259 +               gpios = <&gpio 47 0>;
 260 +       };
 261 +
 262 +       pwr_led: pwr {
 263 +               label = "led1";
 264 +               linux,default-trigger = "input";
 265 +               gpios = <&gpio 35 0>;
 266 +       };
 267 +};
 268 +
 269 +/ {
 270 +       __overrides__ {
 271 +               uart0 = <&uart0>,"status";
 272 +               uart0_clkrate = <&clk_uart0>,"clock-frequency:0";
 273 +               i2s = <&i2s>,"status";
 274 +               spi = <&spi0>,"status";
 275 +               i2c0 = <&i2c0>,"status";
 276 +               i2c1 = <&i2c1>,"status";
 277 +               i2c0_baudrate = <&i2c0>,"clock-frequency:0";
 278 +               i2c1_baudrate = <&i2c1>,"clock-frequency:0";
 279 +
 280 +               act_led_gpio = <&act_led>,"gpios:4";
 281 +               act_led_activelow = <&act_led>,"gpios:8";
 282 +               act_led_trigger = <&act_led>,"linux,default-trigger";
 283 +
 284 +               pwr_led_gpio = <&pwr_led>,"gpios:4";
 285 +               pwr_led_activelow = <&pwr_led>,"gpios:8";
 286 +               pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
 287 +
 288 +               audio = <&audio>,"status";
 289 +               watchdog = <&watchdog>,"status";
 290 +               random = <&random>,"status";
 291 +       };
 292 +};
 293 --- /dev/null
 294 +++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
 295 @@ -0,0 +1,130 @@
 296 +/dts-v1/;
 297 +
 298 +/include/ "bcm2708.dtsi"
 299 +
 300 +/ {
 301 +       compatible = "brcm,bcm2708";
 302 +       model = "Raspberry Pi Model B";
 303 +
 304 +       aliases {
 305 +               soc = &soc;
 306 +               spi0 = &spi0;
 307 +               i2c0 = &i2c0;
 308 +               i2c1 = &i2c1;
 309 +               i2s  = &i2s;
 310 +               gpio = &gpio;
 311 +               intc = &intc;
 312 +               leds = &leds;
 313 +               audio = &audio;
 314 +               sound = &sound;
 315 +               uart0 = &uart0;
 316 +               uart1 = &uart1;
 317 +               clocks = &clocks;
 318 +       };
 319 +
 320 +       sound: sound {
 321 +       };
 322 +};
 323 +
 324 +&gpio {
 325 +       spi0_pins: spi0_pins {
 326 +               brcm,pins = <7 8 9 10 11>;
 327 +               brcm,function = <4>; /* alt0 */
 328 +       };
 329 +
 330 +       i2c0_pins: i2c0 {
 331 +               brcm,pins = <0 1>;
 332 +               brcm,function = <4>;
 333 +       };
 334 +
 335 +       i2c1_pins: i2c1 {
 336 +               brcm,pins = <2 3>;
 337 +               brcm,function = <4>;
 338 +       };
 339 +
 340 +       i2s_pins: i2s {
 341 +               brcm,pins = <28 29 30 31>;
 342 +               brcm,function = <4>; /* alt0 */
 343 +       };
 344 +};
 345 +
 346 +&mmc {
 347 +       status = "okay";
 348 +       bus-width = <4>;
 349 +};
 350 +
 351 +&fb {
 352 +       status = "okay";
 353 +};
 354 +
 355 +&uart0 {
 356 +       status = "okay";
 357 +};
 358 +
 359 +&spi0 {
 360 +       pinctrl-names = "default";
 361 +       pinctrl-0 = <&spi0_pins>;
 362 +
 363 +       spidev@0{
 364 +               compatible = "spidev";
 365 +               reg = <0>;      /* CE0 */
 366 +               #address-cells = <1>;
 367 +               #size-cells = <0>;
 368 +               spi-max-frequency = <500000>;
 369 +       };
 370 +
 371 +       spidev@1{
 372 +               compatible = "spidev";
 373 +               reg = <1>;      /* CE1 */
 374 +               #address-cells = <1>;
 375 +               #size-cells = <0>;
 376 +               spi-max-frequency = <500000>;
 377 +       };
 378 +};
 379 +
 380 +&i2c0 {
 381 +       pinctrl-names = "default";
 382 +       pinctrl-0 = <&i2c0_pins>;
 383 +       clock-frequency = <100000>;
 384 +};
 385 +
 386 +&i2c1 {
 387 +       pinctrl-names = "default";
 388 +       pinctrl-0 = <&i2c1_pins>;
 389 +       clock-frequency = <100000>;
 390 +};
 391 +
 392 +&i2s {
 393 +       #sound-dai-cells = <0>;
 394 +       pinctrl-names = "default";
 395 +       pinctrl-0 = <&i2s_pins>;
 396 +};
 397 +
 398 +&leds {
 399 +       act_led: act {
 400 +               label = "led0";
 401 +               linux,default-trigger = "mmc0";
 402 +               gpios = <&gpio 16 1>;
 403 +       };
 404 +};
 405 +
 406 +/ {
 407 +       __overrides__ {
 408 +               uart0 = <&uart0>,"status";
 409 +               uart0_clkrate = <&clk_uart0>,"clock-frequency:0";
 410 +               i2s = <&i2s>,"status";
 411 +               spi = <&spi0>,"status";
 412 +               i2c0 = <&i2c0>,"status";
 413 +               i2c1 = <&i2c1>,"status";
 414 +               i2c0_baudrate = <&i2c0>,"clock-frequency:0";
 415 +               i2c1_baudrate = <&i2c1>,"clock-frequency:0";
 416 +
 417 +               act_led_gpio = <&act_led>,"gpios:4";
 418 +               act_led_activelow = <&act_led>,"gpios:8";
 419 +               act_led_trigger = <&act_led>,"linux,default-trigger";
 420 +
 421 +               audio = <&audio>,"status";
 422 +               watchdog = <&watchdog>,"status";
 423 +               random = <&random>,"status";
 424 +       };
 425 +};
 426 --- /dev/null
 427 +++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dts
 428 @@ -0,0 +1,18 @@
 429 +/dts-v1/;
 430 +
 431 +/include/ "bcm2708-rpi-cm.dtsi"
 432 +
 433 +/ {
 434 +       model = "Raspberry Pi Compute Module";
 435 +};
 436 +
 437 +&uart0 {
 438 +       status = "okay";
 439 +};
 440 +
 441 +/ {
 442 +       __overrides__ {
 443 +               uart0 = <&uart0>,"status";
 444 +               uart0_clkrate = <&clk_uart0>,"clock-frequency:0";
 445 +       };
 446 +};
 447 --- /dev/null
 448 +++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
 449 @@ -0,0 +1,51 @@
 450 +/include/ "bcm2708.dtsi"
 451 +
 452 +/ {
 453 +       aliases {
 454 +               soc = &soc;
 455 +               spi0 = &spi0;
 456 +               i2c0 = &i2c0;
 457 +               i2c1 = &i2c1;
 458 +               i2s  = &i2s;
 459 +               gpio = &gpio;
 460 +               intc = &intc;
 461 +               leds = &leds;
 462 +               audio = &audio;
 463 +               sound = &sound;
 464 +               uart0 = &uart0;
 465 +               uart1 = &uart1;
 466 +               clocks = &clocks;
 467 +       };
 468 +
 469 +       sound: sound {
 470 +       };
 471 +};
 472 +
 473 +&leds {
 474 +       act_led: act {
 475 +               label = "led0";
 476 +               linux,default-trigger = "mmc0";
 477 +               gpios = <&gpio 47 0>;
 478 +       };
 479 +};
 480 +
 481 +&mmc {
 482 +       status = "okay";
 483 +       bus-width = <4>;
 484 +};
 485 +
 486 +&fb {
 487 +       status = "okay";
 488 +};
 489 +
 490 +&audio {
 491 +       status = "okay";
 492 +};
 493 +
 494 +/ {
 495 +       __overrides__ {
 496 +               act_led_gpio = <&act_led>,"gpios:4";
 497 +               act_led_activelow = <&act_led>,"gpios:8";
 498 +               act_led_trigger = <&act_led>,"linux,default-trigger";
 499 +       };
 500 +};
 501 --- /dev/null
 502 +++ b/arch/arm/boot/dts/bcm2708.dtsi
 503 @@ -0,0 +1,19 @@
 504 +/include/ "bcm2708_common.dtsi"
 505 +
 506 +/ {
 507 +       compatible = "brcm,bcm2708";
 508 +       model = "BCM2708";
 509 +
 510 +       chosen {
 511 +               /* No padding required - the boot loader can do that. */
 512 +               bootargs = "";
 513 +       };
 514 +
 515 +       soc {
 516 +               ranges = <0x7e000000 0x20000000 0x01000000>;
 517 +
 518 +               arm-pmu {
 519 +                       compatible = "arm,arm1176-pmu";
 520 +               };
 521 +       };
 522 +};
 523 --- /dev/null
 524 +++ b/arch/arm/boot/dts/bcm2708_common.dtsi
 525 @@ -0,0 +1,230 @@
 526 +/include/ "skeleton.dtsi"
 527 +
 528 +/ {
 529 +       interrupt-parent = <&intc>;
 530 +
 531 +       /* Onboard audio */
 532 +       audio: audio {
 533 +               compatible = "brcm,bcm2835-audio";
 534 +               brcm,pwm-channels = <8>;
 535 +               status = "disabled";
 536 +       };
 537 +
 538 +       soc: soc {
 539 +               compatible = "simple-bus";
 540 +               #address-cells = <1>;
 541 +               #size-cells = <1>;
 542 +
 543 +               dma: dma@7e007000 {
 544 +                       compatible = "brcm,bcm2835-dma";
 545 +                       reg = <0x7e007000 0xf00>;
 546 +                       interrupts = <1 16>,
 547 +                                    <1 17>,
 548 +                                    <1 18>,
 549 +                                    <1 19>,
 550 +                                    <1 20>,
 551 +                                    <1 21>,
 552 +                                    <1 22>,
 553 +                                    <1 23>,
 554 +                                    <1 24>,
 555 +                                    <1 25>,
 556 +                                    <1 26>,
 557 +                                    <1 27>,
 558 +                                    <1 28>;
 559 +
 560 +                       #dma-cells = <1>;
 561 +                       brcm,dma-channel-mask = <0x7f35>;
 562 +               };
 563 +
 564 +               intc: interrupt-controller {
 565 +                       compatible = "brcm,bcm2708-armctrl-ic";
 566 +                       reg = <0x7e00b200 0x200>;
 567 +                       interrupt-controller;
 568 +                       #interrupt-cells = <2>;
 569 +               };
 570 +
 571 +               watchdog: watchdog@7e100000 {
 572 +                       compatible = "brcm,bcm2835-pm-wdt";
 573 +                       reg = <0x7e100000 0x28>;
 574 +                       status = "disabled";
 575 +               };
 576 +
 577 +               random: rng@7e104000 {
 578 +                       compatible = "brcm,bcm2835-rng";
 579 +                       reg = <0x7e104000 0x10>;
 580 +                       status = "disabled";
 581 +               };
 582 +
 583 +               mailbox: mailbox@7e00b800 {
 584 +                       compatible = "brcm,bcm2708-vcio";
 585 +                       reg = <0x7e00b880 0x40>;
 586 +                       interrupts = <0 1>;
 587 +               };
 588 +
 589 +               gpio: gpio {
 590 +                       compatible = "brcm,bcm2835-gpio";
 591 +                       reg = <0x7e200000 0xb4>;
 592 +                       interrupts = <2 17>, <2 18>;
 593 +
 594 +                       gpio-controller;
 595 +                       #gpio-cells = <2>;
 596 +
 597 +                       interrupt-controller;
 598 +                       #interrupt-cells = <2>;
 599 +               };
 600 +
 601 +               mmc: mmc@7e300000 {
 602 +                       compatible = "brcm,bcm2835-mmc";
 603 +                       reg = <0x7e300000 0x100>;
 604 +                       interrupts = <2 30>;
 605 +                       clocks = <&clk_mmc>;
 606 +                       dmas = <&dma 11>,
 607 +                              <&dma 11>;
 608 +                       dma-names = "tx", "rx";
 609 +                       status = "disabled";
 610 +               };
 611 +
 612 +               uart0: uart@7e201000 {
 613 +                       compatible = "arm,pl011", "arm,primecell";
 614 +                       reg = <0x7e201000 0x1000>;
 615 +                       interrupts = <2 25>;
 616 +                       clocks = <&clk_uart0 &clk_apb_p>;
 617 +                       clock-names = "uartclk","apb_pclk";
 618 +                       arm,primecell-periphid = <0x00241011>; // For an explanation, see
 619 +                       // https://github.com/raspberrypi/linux/commit/13731d862cf5219216533a3b0de052cee4cc5038
 620 +                       status = "disabled";
 621 +               };
 622 +
 623 +               i2s: i2s@7e203000 {
 624 +                       compatible = "brcm,bcm2708-i2s";
 625 +                       reg = <0x7e203000 0x20>,
 626 +                             <0x7e101098 0x02>;
 627 +
 628 +                       //dmas = <&dma 2>,
 629 +                       //       <&dma 3>;
 630 +                       dma-names = "tx", "rx";
 631 +                       status = "disabled";
 632 +               };
 633 +
 634 +               spi0: spi@7e204000 {
 635 +                       compatible = "brcm,bcm2835-spi";
 636 +                       reg = <0x7e204000 0x1000>;
 637 +                       interrupts = <2 22>;
 638 +                       clocks = <&clk_spi>;
 639 +                       #address-cells = <1>;
 640 +                       #size-cells = <0>;
 641 +                       status = "disabled";
 642 +                       /* the dma channels */
 643 +                       dmas = <&dma 6>, <&dma 7>;
 644 +                       dma-names = "tx", "rx";
 645 +                       /* the chipselects used - <0> means native GPIO
 646 +                        * add more gpios if necessary as <&gpio 6 1>
 647 +                        * (but do not forget to make them output!)
 648 +                        */
 649 +                       cs-gpios = <0>, <0>;
 650 +               };
 651 +
 652 +               i2c0: i2c@7e205000 {
 653 +                       compatible = "brcm,bcm2708-i2c";
 654 +                       reg = <0x7e205000 0x1000>;
 655 +                       interrupts = <2 21>;
 656 +                       clocks = <&clk_i2c>;
 657 +                       #address-cells = <1>;
 658 +                       #size-cells = <0>;
 659 +                       status = "disabled";
 660 +               };
 661 +
 662 +               uart1: uart@7e215040 {
 663 +                       compatible = "brcm,bcm2835-aux-uart", "ns16550";
 664 +                       reg = <0x7e215040 0x40>;
 665 +                       interrupts = <1 29>;
 666 +                       clock-frequency = <500000000>;
 667 +                       reg-shift = <2>;
 668 +                       no-loopback-test;
 669 +                       status = "disabled";
 670 +               };
 671 +
 672 +               i2c1: i2c@7e804000 {
 673 +                       compatible = "brcm,bcm2708-i2c";
 674 +                       reg = <0x7e804000 0x1000>;
 675 +                       interrupts = <2 21>;
 676 +                       clocks = <&clk_i2c>;
 677 +                       #address-cells = <1>;
 678 +                       #size-cells = <0>;
 679 +                       status = "disabled";
 680 +               };
 681 +
 682 +               usb: usb@7e980000 {
 683 +                       compatible = "brcm,bcm2708-usb";
 684 +                       reg = <0x7e980000 0x10000>,
 685 +                             <0x7e006000 0x1000>;
 686 +                       interrupts = <2 0>,
 687 +                                    <1 9>;
 688 +               };
 689 +
 690 +               leds: leds {
 691 +                       compatible = "gpio-leds";
 692 +               };
 693 +
 694 +               fb: fb {
 695 +                       compatible = "brcm,bcm2708-fb";
 696 +                       status = "disabled";
 697 +               };
 698 +
 699 +               vchiq: vchiq {
 700 +                       compatible = "brcm,bcm2835-vchiq";
 701 +                       reg = <0x7e00b840 0xf>;
 702 +                       interrupts = <0 2>;
 703 +               };
 704 +
 705 +               thermal: thermal {
 706 +                       compatible = "brcm,bcm2835-thermal";
 707 +               };
 708 +       };
 709 +
 710 +       clocks: clocks {
 711 +               compatible = "simple-bus";
 712 +               #address-cells = <1>;
 713 +               #size-cells = <0>;
 714 +
 715 +               clk_mmc: clock@0 {
 716 +                       compatible = "fixed-clock";
 717 +                       reg = <0>;
 718 +                       #clock-cells = <0>;
 719 +                       clock-output-names = "mmc";
 720 +                       clock-frequency = <250000000>;
 721 +               };
 722 +
 723 +               clk_i2c: clock@1 {
 724 +                       compatible = "fixed-clock";
 725 +                       reg = <1>;
 726 +                       #clock-cells = <0>;
 727 +                       clock-output-names = "i2c";
 728 +                       clock-frequency = <250000000>;
 729 +               };
 730 +
 731 +               clk_spi: clock@2 {
 732 +                       compatible = "fixed-clock";
 733 +                       reg = <2>;
 734 +                       #clock-cells = <0>;
 735 +                       clock-output-names = "spi";
 736 +                       clock-frequency = <250000000>;
 737 +               };
 738 +
 739 +               clk_uart0: clock@3 {
 740 +                       compatible = "fixed-clock";
 741 +                       reg = <3>;
 742 +                       #clock-cells = <0>;
 743 +                       clock-output-names = "uart0_pclk";
 744 +                       clock-frequency = <3000000>;
 745 +               };
 746 +
 747 +               clk_apb_p: clock@4 {
 748 +                       compatible = "fixed-clock";
 749 +                       reg = <4>;
 750 +                       #clock-cells = <0>;
 751 +                       clock-output-names = "apb_pclk";
 752 +                       clock-frequency = <126000000>;
 753 +               };
 754 +       };
 755 +};
 756 --- /dev/null
 757 +++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
 758 @@ -0,0 +1,140 @@
 759 +/dts-v1/;
 760 +
 761 +/include/ "bcm2709.dtsi"
 762 +
 763 +/ {
 764 +       compatible = "brcm,bcm2709";
 765 +       model = "Raspberry Pi 2 Model B";
 766 +
 767 +       aliases {
 768 +               soc = &soc;
 769 +               spi0 = &spi0;
 770 +               i2c0 = &i2c0;
 771 +               i2c1 = &i2c1;
 772 +               i2s  = &i2s;
 773 +               gpio = &gpio;
 774 +               intc = &intc;
 775 +               leds = &leds;
 776 +               audio = &audio;
 777 +               sound = &sound;
 778 +               uart0 = &uart0;
 779 +               uart1 = &uart1;
 780 +               clocks = &clocks;
 781 +       };
 782 +
 783 +       sound: sound {
 784 +       };
 785 +};
 786 +
 787 +&gpio {
 788 +       spi0_pins: spi0_pins {
 789 +               brcm,pins = <7 8 9 10 11>;
 790 +               brcm,function = <4>; /* alt0 */
 791 +       };
 792 +
 793 +       i2c0_pins: i2c0 {
 794 +               brcm,pins = <0 1>;
 795 +               brcm,function = <4>;
 796 +       };
 797 +
 798 +       i2c1_pins: i2c1 {
 799 +               brcm,pins = <2 3>;
 800 +               brcm,function = <4>;
 801 +       };
 802 +
 803 +       i2s_pins: i2s {
 804 +               brcm,pins = <18 19 20 21>;
 805 +               brcm,function = <4>; /* alt0 */
 806 +       };
 807 +};
 808 +
 809 +&mmc {
 810 +       status = "okay";
 811 +       bus-width = <4>;
 812 +};
 813 +
 814 +&fb {
 815 +       status = "okay";
 816 +};
 817 +
 818 +&uart0 {
 819 +       status = "okay";
 820 +};
 821 +
 822 +&spi0 {
 823 +       pinctrl-names = "default";
 824 +       pinctrl-0 = <&spi0_pins>;
 825 +
 826 +       spidev@0{
 827 +               compatible = "spidev";
 828 +               reg = <0>;      /* CE0 */
 829 +               #address-cells = <1>;
 830 +               #size-cells = <0>;
 831 +               spi-max-frequency = <500000>;
 832 +       };
 833 +
 834 +       spidev@1{
 835 +               compatible = "spidev";
 836 +               reg = <1>;      /* CE1 */
 837 +               #address-cells = <1>;
 838 +               #size-cells = <0>;
 839 +               spi-max-frequency = <500000>;
 840 +       };
 841 +};
 842 +
 843 +&i2c0 {
 844 +       pinctrl-names = "default";
 845 +       pinctrl-0 = <&i2c0_pins>;
 846 +       clock-frequency = <100000>;
 847 +};
 848 +
 849 +&i2c1 {
 850 +       pinctrl-names = "default";
 851 +       pinctrl-0 = <&i2c1_pins>;
 852 +       clock-frequency = <100000>;
 853 +};
 854 +
 855 +&i2s {
 856 +       #sound-dai-cells = <0>;
 857 +       pinctrl-names = "default";
 858 +       pinctrl-0 = <&i2s_pins>;
 859 +};
 860 +
 861 +&leds {
 862 +       act_led: act {
 863 +               label = "led0";
 864 +               linux,default-trigger = "mmc0";
 865 +               gpios = <&gpio 47 0>;
 866 +       };
 867 +
 868 +       pwr_led: pwr {
 869 +               label = "led1";
 870 +               linux,default-trigger = "input";
 871 +               gpios = <&gpio 35 0>;
 872 +       };
 873 +};
 874 +
 875 +/ {
 876 +       __overrides__ {
 877 +               uart0 = <&uart0>,"status";
 878 +               uart0_clkrate = <&clk_uart0>,"clock-frequency:0";
 879 +               i2s = <&i2s>,"status";
 880 +               spi = <&spi0>,"status";
 881 +               i2c0 = <&i2c0>,"status";
 882 +               i2c1 = <&i2c1>,"status";
 883 +               i2c0_baudrate = <&i2c0>,"clock-frequency:0";
 884 +               i2c1_baudrate = <&i2c1>,"clock-frequency:0";
 885 +
 886 +               act_led_gpio = <&act_led>,"gpios:4";
 887 +               act_led_activelow = <&act_led>,"gpios:8";
 888 +               act_led_trigger = <&act_led>,"linux,default-trigger";
 889 +
 890 +               pwr_led_gpio = <&pwr_led>,"gpios:4";
 891 +               pwr_led_activelow = <&pwr_led>,"gpios:8";
 892 +               pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
 893 +
 894 +               audio = <&audio>,"status";
 895 +               watchdog = <&watchdog>,"status";
 896 +               random = <&random>,"status";
 897 +       };
 898 +};
 899 --- /dev/null
 900 +++ b/arch/arm/boot/dts/bcm2709.dtsi
 901 @@ -0,0 +1,70 @@
 902 +/include/ "bcm2708_common.dtsi"
 903 +
 904 +/ {
 905 +       compatible = "brcm,bcm2709";
 906 +       model = "BCM2709";
 907 +
 908 +       chosen {
 909 +               /* No padding required - the boot loader can do that. */
 910 +               bootargs = "";
 911 +       };
 912 +
 913 +       soc {
 914 +               ranges = <0x7e000000 0x3f000000 0x01000000>;
 915 +
 916 +               arm-pmu {
 917 +                       compatible = "arm,cortex-a7-pmu";
 918 +                       interrupts = <3 9>;
 919 +               };
 920 +       };
 921 +
 922 +       timer {
 923 +               compatible = "arm,armv7-timer";
 924 +               clock-frequency = <19200000>;
 925 +               interrupts = <3 0>, // PHYS_SECURE_PPI
 926 +                            <3 1>, // PHYS_NONSECURE_PPI
 927 +                            <3 3>, // VIRT_PPI
 928 +                            <3 2>; // HYP_PPI
 929 +               always-on;
 930 +       };
 931 +
 932 +       cpus: cpus {
 933 +               #address-cells = <1>;
 934 +               #size-cells = <0>;
 935 +
 936 +               v7_cpu0: cpu@0 {
 937 +                       device_type = "cpu";
 938 +                       compatible = "arm,cortex-a7";
 939 +                       reg = <0xf00>;
 940 +                       clock-frequency = <800000000>;
 941 +               };
 942 +
 943 +               v7_cpu1: cpu@1 {
 944 +                       device_type = "cpu";
 945 +                       compatible = "arm,cortex-a7";
 946 +                       reg = <0xf01>;
 947 +                       clock-frequency = <800000000>;
 948 +               };
 949 +
 950 +               v7_cpu2: cpu@2 {
 951 +                       device_type = "cpu";
 952 +                       compatible = "arm,cortex-a7";
 953 +                       reg = <0xf02>;
 954 +                       clock-frequency = <800000000>;
 955 +               };
 956 +
 957 +               v7_cpu3: cpu@3 {
 958 +                       device_type = "cpu";
 959 +                       compatible = "arm,cortex-a7";
 960 +                       reg = <0xf03>;
 961 +                       clock-frequency = <800000000>;
 962 +               };
 963 +       };
 964 +
 965 +       __overrides__ {
 966 +               arm_freq = <&v7_cpu0>, "clock-frequency:0",
 967 +                      <&v7_cpu1>, "clock-frequency:0",
 968 +                      <&v7_cpu2>, "clock-frequency:0",
 969 +                      <&v7_cpu3>, "clock-frequency:0";
 970 +       };
 971 +};
 972 --- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
 973 +++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
 974 @@ -4,27 +4,40 @@
 975  / {
 976         compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
 977         model = "Raspberry Pi Model B+";
 978 -
 979 -       leds {
 980 -               act {
 981 -                       gpios = <&gpio 47 0>;
 982 -               };
 983 -
 984 -               pwr {
 985 -                       label = "PWR";
 986 -                       gpios = <&gpio 35 0>;
 987 -                       default-state = "keep";
 988 -                       linux,default-trigger = "default-on";
 989 -               };
 990 -       };
 991  };
 992
 993  &gpio {
 994 -       pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>;
 995 -
 996 -       /* I2S interface */
 997 -       i2s_alt0: i2s_alt0 {
 998 +       i2s_pins: i2s {
 999                 brcm,pins = <18 19 20 21>;
1000                 brcm,function = <4>; /* alt0 */
1001         };
1002  };
1003 +
1004 +&i2s {
1005 +       #sound-dai-cells = <0>;
1006 +       pinctrl-names = "default";
1007 +       pinctrl-0 = <&i2s_pins>;
1008 +};
1009 +
1010 +&act_led {
1011 +       gpios = <&gpio 47 0>;
1012 +};
1013 +
1014 +&leds {
1015 +       pwr_led: pwr {
1016 +               label = "led1";
1017 +               linux,default-trigger = "input";
1018 +               gpios = <&gpio 35 0>;
1019 +       };
1020 +};
1021 +
1022 +/ {
1023 +       __overrides__ {
1024 +               act_led_gpio = <&act_led>,"gpios:4";
1025 +               act_led_activelow = <&act_led>,"gpios:8";
1026 +
1027 +               pwr_led_gpio = <&pwr_led>,"gpios:4";
1028 +               pwr_led_activelow = <&pwr_led>,"gpios:8";
1029 +               pwr_led_trigger = <&pwr_led>,"linux,default-trigger";
1030 +       };
1031 +};
1032 --- a/arch/arm/boot/dts/bcm2835-rpi-b.dts
1033 +++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
1034 @@ -5,19 +5,28 @@
1035         compatible = "raspberrypi,model-b", "brcm,bcm2835";
1036         model = "Raspberry Pi Model B";
1037
1038 -       leds {
1039 -               act {
1040 -                       gpios = <&gpio 16 1>;
1041 -               };
1042 -       };
1043  };
1044
1045  &gpio {
1046 -       pinctrl-0 = <&gpioout &alt0 &i2s_alt2 &alt3>;
1047 -
1048 -       /* I2S interface */
1049 -       i2s_alt2: i2s_alt2 {
1050 +       i2s_pins: i2s {
1051                 brcm,pins = <28 29 30 31>;
1052 -               brcm,function = <6>; /* alt2 */
1053 +               brcm,function = <4>; /* alt0 */
1054 +       };
1055 +};
1056 +
1057 +&i2s {
1058 +       #sound-dai-cells = <0>;
1059 +       pinctrl-names = "default";
1060 +       pinctrl-0 = <&i2s_pins>;
1061 +};
1062 +
1063 +&act_led {
1064 +       gpios = <&gpio 16 1>;
1065 +};
1066 +
1067 +/ {
1068 +       __overrides__ {
1069 +               act_led_gpio = <&act_led>,"gpios:4";
1070 +               act_led_activelow = <&act_led>,"gpios:8";
1071         };
1072  };
1073 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
1074 +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
1075 @@ -1,51 +1,112 @@
1076  /include/ "bcm2835.dtsi"
1077
1078  / {
1079 +       /* This is left here in case u-boot needs it */
1080         memory {
1081                 reg = <0 0x10000000>;
1082         };
1083
1084 -       leds {
1085 +       aliases {
1086 +               soc = &soc;
1087 +               spi0 = &spi0;
1088 +               i2c0 = &i2c0;
1089 +               i2c1 = &i2c1;
1090 +               i2s  = &i2s;
1091 +               gpio = &gpio;
1092 +               intc = &intc;
1093 +               leds = &leds;
1094 +               sound = &sound;
1095 +       };
1096 +
1097 +       leds: leds {
1098                 compatible = "gpio-leds";
1099
1100 -               act {
1101 -                       label = "ACT";
1102 -                       default-state = "keep";
1103 -                       linux,default-trigger = "heartbeat";
1104 +               act_led: act {
1105 +                       label = "led0";
1106 +                       linux,default-trigger = "mmc0";
1107                 };
1108         };
1109 +
1110 +       /* Onboard audio */
1111 +       audio: audio {
1112 +               compatible = "brcm,bcm2835-audio";
1113 +               brcm,pwm-channels = <8>;
1114 +               status = "disabled";
1115 +       };
1116 +
1117 +       /* External sound card */
1118 +       sound: sound {
1119 +       };
1120  };
1121
1122  &gpio {
1123 -       pinctrl-names = "default";
1124 +       spi0_pins: spi0_pins {
1125 +               brcm,pins = <7 8 9 10 11>;
1126 +               brcm,function = <4>; /* alt0 */
1127 +       };
1128
1129 -       gpioout: gpioout {
1130 -               brcm,pins = <6>;
1131 -               brcm,function = <1>; /* GPIO out */
1132 +       i2c0_pins: i2c0 {
1133 +               brcm,pins = <0 1>;
1134 +               brcm,function = <4>;
1135         };
1136
1137 -       alt0: alt0 {
1138 -               brcm,pins = <0 1 2 3 4 5 7 8 9 10 11 14 15 40 45>;
1139 -               brcm,function = <4>; /* alt0 */
1140 +       i2c1_pins: i2c1 {
1141 +               brcm,pins = <2 3>;
1142 +               brcm,function = <4>;
1143 +       };
1144 +};
1145 +
1146 +&spi0 {
1147 +       pinctrl-names = "default";
1148 +       pinctrl-0 = <&spi0_pins>;
1149 +
1150 +       spidev@0{
1151 +               compatible = "spidev";
1152 +               reg = <0>;      /* CE0 */
1153 +               #address-cells = <1>;
1154 +               #size-cells = <0>;
1155 +               spi-max-frequency = <500000>;
1156         };
1157
1158 -       alt3: alt3 {
1159 -               brcm,pins = <48 49 50 51 52 53>;
1160 -               brcm,function = <7>; /* alt3 */
1161 +       spidev@1{
1162 +               compatible = "spidev";
1163 +               reg = <1>;      /* CE1 */
1164 +               #address-cells = <1>;
1165 +               #size-cells = <0>;
1166 +               spi-max-frequency = <500000>;
1167         };
1168  };
1169
1170  &i2c0 {
1171 -       status = "okay";
1172 +       pinctrl-names = "default";
1173 +       pinctrl-0 = <&i2c0_pins>;
1174         clock-frequency = <100000>;
1175  };
1176
1177  &i2c1 {
1178 -       status = "okay";
1179 +       pinctrl-names = "default";
1180 +       pinctrl-0 = <&i2c1_pins>;
1181         clock-frequency = <100000>;
1182  };
1183
1184 -&sdhci {
1185 +&mmc {
1186         status = "okay";
1187         bus-width = <4>;
1188  };
1189 +
1190 +&fb {
1191 +       status = "okay";
1192 +};
1193 +
1194 +/ {
1195 +       __overrides__ {
1196 +               i2s = <&i2s>,"status";
1197 +               spi = <&spi0>,"status";
1198 +               i2c0 = <&i2c0>,"status";
1199 +               i2c1 = <&i2c1>,"status";
1200 +               i2c0_baudrate = <&i2c0>,"clock-frequency:0";
1201 +               i2c1_baudrate = <&i2c1>,"clock-frequency:0";
1202 +               act_led_trigger = <&act_led>,"linux,default-trigger";
1203 +               audio = <&audio>,"status";
1204 +       };
1205 +};
1206 --- a/arch/arm/boot/dts/bcm2835.dtsi
1207 +++ b/arch/arm/boot/dts/bcm2835.dtsi
1208 @@ -6,14 +6,15 @@
1209         interrupt-parent = <&intc>;
1210
1211         chosen {
1212 -               bootargs = "earlyprintk console=ttyAMA0";
1213 +               bootargs = "";
1214         };
1215
1216 -       soc {
1217 +       soc: soc {
1218                 compatible = "simple-bus";
1219                 #address-cells = <1>;
1220                 #size-cells = <1>;
1221                 ranges = <0x7e000000 0x20000000 0x02000000>;
1222 +               dma-ranges = <0x40000000 0x00000000 0x20000000>;
1223
1224                 timer@7e003000 {
1225                         compatible = "brcm,bcm2835-system-timer";
1226 @@ -50,16 +51,22 @@
1227                         #interrupt-cells = <2>;
1228                 };
1229
1230 -               watchdog@7e100000 {
1231 +               watchdog: watchdog@7e100000 {
1232                         compatible = "brcm,bcm2835-pm-wdt";
1233                         reg = <0x7e100000 0x28>;
1234                 };
1235
1236 -               rng@7e104000 {
1237 +               random: rng@7e104000 {
1238                         compatible = "brcm,bcm2835-rng";
1239                         reg = <0x7e104000 0x10>;
1240                 };
1241
1242 +               mailbox: mailbox@7e00b800 {
1243 +                       compatible = "brcm,bcm2708-vcio";
1244 +                       reg = <0x7e00b880 0x40>;
1245 +                       interrupts = <0 1>;
1246 +               };
1247 +
1248                 gpio: gpio@7e200000 {
1249                         compatible = "brcm,bcm2835-gpio";
1250                         reg = <0x7e200000 0xb4>;
1251 @@ -83,7 +90,7 @@
1252                         #interrupt-cells = <2>;
1253                 };
1254
1255 -               uart@7e201000 {
1256 +               uart0: uart@7e201000 {
1257                         compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell";
1258                         reg = <0x7e201000 0x1000>;
1259                         interrupts = <2 25>;
1260 @@ -102,7 +109,7 @@
1261                         status = "disabled";
1262                 };
1263
1264 -               spi: spi@7e204000 {
1265 +               spi0: spi@7e204000 {
1266                         compatible = "brcm,bcm2835-spi";
1267                         reg = <0x7e204000 0x1000>;
1268                         interrupts = <2 22>;
1269 @@ -122,11 +129,14 @@
1270                         status = "disabled";
1271                 };
1272
1273 -               sdhci: sdhci@7e300000 {
1274 -                       compatible = "brcm,bcm2835-sdhci";
1275 +               mmc: mmc@7e300000 {
1276 +                       compatible = "brcm,bcm2835-mmc";
1277                         reg = <0x7e300000 0x100>;
1278                         interrupts = <2 30>;
1279                         clocks = <&clk_mmc>;
1280 +                       dmas = <&dma 11>,
1281 +                              <&dma 11>;
1282 +                       dma-names = "tx", "rx";
1283                         status = "disabled";
1284                 };
1285
1286 @@ -140,7 +150,7 @@
1287                         status = "disabled";
1288                 };
1289
1290 -               usb@7e980000 {
1291 +               usb: usb@7e980000 {
1292                         compatible = "brcm,bcm2835-usb";
1293                         reg = <0x7e980000 0x10000>;
1294                         interrupts = <1 9>;
1295 @@ -149,6 +159,21 @@
1296                 arm-pmu {
1297                         compatible = "arm,arm1176-pmu";
1298                 };
1299 +
1300 +               fb: fb {
1301 +                       compatible = "brcm,bcm2708-fb";
1302 +                       status = "disabled";
1303 +               };
1304 +
1305 +               vchiq: vchiq {
1306 +                       compatible = "brcm,bcm2835-vchiq";
1307 +                       reg = <0x7e00b840 0xf>;
1308 +                       interrupts = <0 2>;
1309 +               };
1310 +
1311 +               thermal: thermal {
1312 +                       compatible = "brcm,bcm2835-thermal";
1313 +               };
1314         };
1315
1316         clocks {
1317 @@ -161,7 +186,7 @@
1318                         reg = <0>;
1319                         #clock-cells = <0>;
1320                         clock-output-names = "mmc";
1321 -                       clock-frequency = <100000000>;
1322 +                       clock-frequency = <250000000>;
1323                 };
1324
1325                 clk_i2c: clock@1 {
1326 --- /dev/null
1327 +++ b/arch/arm/boot/dts/overlays/Makefile
1328 @@ -0,0 +1,57 @@
1329 +ifeq ($(CONFIG_OF),y)
1330 +
1331 +# Overlays for the Raspberry Pi platform
1332 +
1333 +ifeq ($(CONFIG_BCM2708_DT),y)
1334 +   RPI_DT_OVERLAYS=y
1335 +endif
1336 +ifeq ($(CONFIG_BCM2709_DT),y)
1337 +   RPI_DT_OVERLAYS=y
1338 +endif
1339 +ifeq ($(CONFIG_ARCH_BCM2835),y)
1340 +   RPI_DT_OVERLAYS=y
1341 +endif
1342 +
1343 +dtb-$(RPI_DT_OVERLAYS) += ads7846-overlay.dtb
1344 +dtb-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor-overlay.dtb
1345 +dtb-$(RPI_DT_OVERLAYS) += dht11-overlay.dtb
1346 +dtb-$(RPI_DT_OVERLAYS) += enc28j60-overlay.dtb
1347 +dtb-$(RPI_DT_OVERLAYS) += hifiberry-amp-overlay.dtb
1348 +dtb-$(RPI_DT_OVERLAYS) += hifiberry-dac-overlay.dtb
1349 +dtb-$(RPI_DT_OVERLAYS) += hifiberry-dacplus-overlay.dtb
1350 +dtb-$(RPI_DT_OVERLAYS) += hifiberry-digi-overlay.dtb
1351 +dtb-$(RPI_DT_OVERLAYS) += hy28a-overlay.dtb
1352 +dtb-$(RPI_DT_OVERLAYS) += hy28b-overlay.dtb
1353 +dtb-$(RPI_DT_OVERLAYS) += i2c-rtc-overlay.dtb
1354 +dtb-$(RPI_DT_OVERLAYS) += i2s-mmap-overlay.dtb
1355 +dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb
1356 +dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb
1357 +dtb-$(RPI_DT_OVERLAYS) += lirc-rpi-overlay.dtb
1358 +dtb-$(RPI_DT_OVERLAYS) += mcp2515-can0-overlay.dtb
1359 +dtb-$(RPI_DT_OVERLAYS) += mmc-overlay.dtb
1360 +dtb-$(RPI_DT_OVERLAYS) += mz61581-overlay.dtb
1361 +dtb-$(RPI_DT_OVERLAYS) += piscreen-overlay.dtb
1362 +dtb-$(RPI_DT_OVERLAYS) += pitft28-resistive-overlay.dtb
1363 +dtb-$(RPI_DT_OVERLAYS) += pps-gpio-overlay.dtb
1364 +dtb-$(RPI_DT_OVERLAYS) += rpi-dac-overlay.dtb
1365 +dtb-$(RPI_DT_OVERLAYS) += rpi-display-overlay.dtb
1366 +dtb-$(RPI_DT_OVERLAYS) += rpi-proto-overlay.dtb
1367 +dtb-$(RPI_DT_OVERLAYS) += sdhost-overlay.dtb
1368 +dtb-$(RPI_DT_OVERLAYS) += spi-bcm2708-overlay.dtb
1369 +dtb-$(RPI_DT_OVERLAYS) += spi-bcm2835-overlay.dtb
1370 +dtb-$(RPI_DT_OVERLAYS) += tinylcd35-overlay.dtb
1371 +dtb-$(RPI_DT_OVERLAYS) += w1-gpio-overlay.dtb
1372 +dtb-$(RPI_DT_OVERLAYS) += w1-gpio-pullup-overlay.dtb
1373 +
1374 +targets += dtbs dtbs_install
1375 +targets += $(dtb-y)
1376 +
1377 +endif
1378 +
1379 +always         := $(dtb-y)
1380 +clean-files    := *.dtb
1381 +
1382 +# Enable fixups to support overlays on BCM2708 platforms
1383 +ifeq ($(RPI_DT_OVERLAYS),y)
1384 +       DTC_FLAGS ?= -@
1385 +endif
1386 --- /dev/null
1387 +++ b/arch/arm/boot/dts/overlays/README
1388 @@ -0,0 +1,493 @@
1389 +Introduction
1390 +============
1391 +
1392 +This directory contains Device Tree overlays. Device Tree makes it possible
1393 +to support many hardware configurations with a single kernel and without the
1394 +need to explicitly load or blacklist kernel modules. Note that this isn't a
1395 +"pure" Device Tree configuration (c.f. MACH_BCM2835) - some on-board devices
1396 +are still configured by the board support code, but the intention is to
1397 +eventually reach that goal.
1398 +
1399 +On Raspberry Pi, Device Tree usage is controlled from /boot/config.txt. By
1400 +default, the Raspberry Pi kernel boots with device tree enabled. You can
1401 +completely disable DT usage (for now) by adding:
1402 +
1403 +    device_tree=
1404 +
1405 +to your config.txt, which should cause your Pi to revert to the old way of
1406 +doing things after a reboot.
1407 +
1408 +In /boot you will find a .dtb for each base platform. This describes the
1409 +hardware that is part of the Raspberry Pi board. The loader (start.elf and its
1410 +siblings) selects the .dtb file appropriate for the platform by name, and reads
1411 +it into memory. At this point, all of the optional interfaces (i2c, i2s, spi)
1412 +are disabled, but they can be enabled using Device Tree parameters:
1413 +
1414 +    dtparam=i2c=on,i2s=on,spi=on
1415 +
1416 +However, this shouldn't be necessary in many use cases because loading an
1417 +overlay that requires one of those interfaces will cause it to be enabled
1418 +automatically, and it is advisable to only enable interfaces if they are
1419 +needed.
1420 +
1421 +Configuring additional, optional hardware is done using Device Tree overlays
1422 +(see below).
1423 +
1424 +raspi-config
1425 +============
1426 +
1427 +The Advanced Options section of the raspi-config utility can enable and disable
1428 +Device Tree use, as well as toggling the I2C and SPI interfaces. Note that it
1429 +is possible to both enable an interface and blacklist the driver, if for some
1430 +reason you should want to defer the loading.
1431 +
1432 +Modules
1433 +=======
1434 +
1435 +As well as describing the hardware, Device Tree also gives enough information
1436 +to allow suitable driver modules to be located and loaded, with the corollary
1437 +that unneeded modules are not loaded. As a result it should be possible to
1438 +remove lines from /etc/modules, and /etc/modprobe.d/raspi-blacklist.conf can
1439 +have its contents deleted (or commented out).
1440 +
1441 +Using Overlays
1442 +==============
1443 +
1444 +Overlays are loaded using the "dtoverlay" directive. As an example, consider the
1445 +popular lirc-rpi module, the Linux Infrared Remote Control driver. In the
1446 +pre-DT world this would be loaded from /etc/modules, with an explicit
1447 +"modprobe lirc-rpi" command, or programmatically by lircd. With DT enabled,
1448 +this becomes a line in config.txt:
1449 +
1450 +    dtoverlay=lirc-rpi
1451 +
1452 +This causes the file /boot/overlays/lirc-rpi-overlay.dtb to be loaded. By
1453 +default it will use GPIOs 17 (out) and 18 (in), but this can be modified using
1454 +DT parameters:
1455 +
1456 +    dtoverlay=lirc-rpi,gpio_out_pin=17,gpio_in_pin=13
1457 +
1458 +Parameters always have default values, although in some cases (e.g. "w1-gpio")
1459 +it is necessary to provided multiple overlays in order to get the desired
1460 +behaviour. See the list of overlays below for a description of the parameters and their defaults.
1461 +
1462 +The Overlay and Parameter Reference
1463 +===================================
1464 +
1465 +Name:   <The base DTB>
1466 +Info:   Configures the base Raspberry Pi hardware
1467 +Load:   <loaded automatically>
1468 +Params:
1469 +        audio                    Set to "on" to disable the onboard ALSA audio
1470 +                                 interface (default "off")
1471 +
1472 +        i2c_arm                  Set to "on" to enable the ARM's i2c interface
1473 +                                 (default "off")
1474 +
1475 +        i2c_vc                   Set to "on" to enable the i2c interface
1476 +                                 usually reserved for the VideoCore processor
1477 +                                 (default "off")
1478 +
1479 +        i2c                      An alias for i2c_arm
1480 +
1481 +        i2c_arm_baudrate         Set the baudrate of the ARM's i2c interface
1482 +                                 (default "100000")
1483 +
1484 +        i2c_vc_baudrate          Set the baudrate of the VideoCore i2c interface
1485 +                                 (default "100000")
1486 +
1487 +        i2c_baudrate             An alias for i2c_arm_baudrate
1488 +
1489 +        i2s                      Set to "on" to enable the i2s interface
1490 +                                 (default "off")
1491 +
1492 +        spi                      Set to "on" to enable the spi interfaces
1493 +                                 (default "off")
1494 +
1495 +        random                   Set to "on" to enable the hardware random
1496 +                                 number generator (default "off")
1497 +
1498 +        uart0                    Set to "off" to disable uart0 (default "on")
1499 +
1500 +        watchdog                 Set to "on" to enable the hardware watchdog
1501 +                                 (default "off")
1502 +
1503 +        act_led_trigger          Choose which activity the LED tracks.
1504 +                                 Use "heartbeat" for a nice load indicator.
1505 +                                 (default "mmc")
1506 +
1507 +        act_led_activelow        Set to "on" to invert the sense of the LED
1508 +                                 (default "off")
1509 +
1510 +        act_led_gpio             Set which GPIO to use for the activity LED
1511 +                                 (in case you want to connect it to an external
1512 +                                 device)
1513 +                                 (default "16" on a non-Plus board, "47" on a
1514 +                                 Plus or Pi 2)
1515 +
1516 +        pwr_led_trigger
1517 +        pwr_led_activelow
1518 +        pwr_led_gpio
1519 +                                 As for act_led_*, but using the PWR LED.
1520 +                                 Not available on Model A/B boards.
1521 +
1522 +        N.B. It is recommended to only enable those interfaces that are needed.
1523 +        Leaving all interfaces enabled can lead to unwanted behaviour (i2c_vc
1524 +        interfering with Pi Camera, I2S and SPI hogging GPIO pins, etc.)
1525 +        Note also that i2c, i2c_arm and i2c_vc are aliases for the physical
1526 +        interfaces i2c0 and i2c1. Use of the numeric variants is still possible
1527 +        but deprecated because the ARM/VC assignments differ between board
1528 +        revisions. The same board-specific mapping applies to i2c_baudrate,
1529 +        and the other i2c baudrate parameters.
1530 +
1531 +
1532 +Name:   ads7846
1533 +Info:   ADS7846 Touch controller
1534 +Load:   dtoverlay=ads7846,<param>=<val>
1535 +Params: cs                       SPI bus Chip Select (default 1)
1536 +        speed                    SPI bus speed (default 2Mhz, max 3.25MHz)
1537 +        penirq                   GPIO used for PENIRQ. REQUIRED
1538 +        penirq_pull              Set GPIO pull (default 0=none, 2=pullup)
1539 +        swapxy                   Swap x and y axis
1540 +        xmin                     Minimum value on the X axis (default 0)
1541 +        ymin                     Minimum value on the Y axis (default 0)
1542 +        xmax                     Maximum value on the X axis (default 4095)
1543 +        ymax                     Maximum value on the Y axis (default 4095)
1544 +        pmin                     Minimum reported pressure value (default 0)
1545 +        pmax                     Maximum reported pressure value (default 65535)
1546 +        xohms                    Touchpanel sensitivity (X-plate resistance)
1547 +                                 (default 400)
1548 +
1549 +        penirq is required and usually xohms (60-100) has to be set as well.
1550 +        Apart from that, pmax (255) and swapxy are also common.
1551 +        The rest of the calibration can be done with xinput-calibrator.
1552 +        See: github.com/notro/fbtft/wiki/FBTFT-on-Raspian
1553 +        Device Tree binding document:
1554 +        www.kernel.org/doc/Documentation/devicetree/bindings/input/ads7846.txt
1555 +
1556 +
1557 +Name:   bmp085_i2c-sensor
1558 +Info:   Configures the BMP085/BMP180 digital barometric pressure and temperature
1559 +        sensors from Bosch Sensortec
1560 +Load:   dtoverlay=bmp085_i2c-sensor
1561 +Params: <None>
1562 +
1563 +
1564 +[ The ds1307-rtc overlay has been deleted. See i2c-rtc. ]
1565 +
1566 +
1567 +Name:   enc28j60
1568 +Info:   Overlay for the Microchip ENC28J60 Ethernet Controller (SPI)
1569 +Load:   dtoverlay=enc28j60,<param>=<val>
1570 +Params: int_pin                  GPIO used for INT (default 25)
1571 +
1572 +        speed                    SPI bus speed (default 12000000)
1573 +
1574 +
1575 +Name:   hifiberry-amp
1576 +Info:   Configures the HifiBerry Amp and Amp+ audio cards
1577 +Load:   dtoverlay=hifiberry-amp
1578 +Params: <None>
1579 +
1580 +
1581 +Name:   hifiberry-dac
1582 +Info:   Configures the HifiBerry DAC audio card
1583 +Load:   dtoverlay=hifiberry-dac
1584 +Params: <None>
1585 +
1586 +
1587 +Name:   hifiberry-dacplus
1588 +Info:   Configures the HifiBerry DAC+ audio card
1589 +Load:   dtoverlay=hifiberry-dacplus
1590 +Params: <None>
1591 +
1592 +
1593 +Name:   hifiberry-digi
1594 +Info:   Configures the HifiBerry Digi audio card
1595 +Load:   dtoverlay=hifiberry-digi
1596 +Params: <None>
1597 +
1598 +
1599 +Name:   hy28a
1600 +Info:   HY28A - 2.8" TFT LCD Display Module by HAOYU Electronics
1601 +        Default values match Texy's display shield
1602 +Load:   dtoverlay=hy28a,<param>=<val>
1603 +Params: speed                    Display SPI bus speed
1604 +
1605 +        rotate                   Display rotation {0,90,180,270}
1606 +
1607 +        fps                      Delay between frame updates
1608 +
1609 +        debug                    Debug output level {0-7}
1610 +
1611 +        xohms                    Touchpanel sensitivity (X-plate resistance)
1612 +
1613 +        resetgpio                GPIO used to reset controller
1614 +
1615 +        ledgpio                  GPIO used to control backlight
1616 +
1617 +
1618 +Name:   hy28b
1619 +Info:   HY28B - 2.8" TFT LCD Display Module by HAOYU Electronics
1620 +        Default values match Texy's display shield
1621 +Load:   dtoverlay=hy28b,<param>=<val>
1622 +Params: speed                    Display SPI bus speed
1623 +
1624 +        rotate                   Display rotation {0,90,180,270}
1625 +
1626 +        fps                      Delay between frame updates
1627 +
1628 +        debug                    Debug output level {0-7}
1629 +
1630 +        xohms                    Touchpanel sensitivity (X-plate resistance)
1631 +
1632 +        resetgpio                GPIO used to reset controller
1633 +
1634 +        ledgpio                  GPIO used to control backlight
1635 +
1636 +
1637 +Name:   i2c-rtc
1638 +Info:   Adds support for a number of I2C Real Time Clock devices
1639 +Load:   dtoverlay=i2c-rtc,<param>
1640 +Params: ds1307                   Select the DS1307 device
1641 +
1642 +        ds3231                   Select the DS3231 device
1643 +
1644 +        pcf2127                  Select the PCF2127 device
1645 +
1646 +        pcf8523                  Select the PCF8523 device
1647 +
1648 +        pcf8563                  Select the PCF8563 device
1649 +
1650 +
1651 +Name:   iqaudio-dac
1652 +Info:   Configures the IQaudio DAC audio card
1653 +Load:   dtoverlay=iqaudio-dac
1654 +Params: <None>
1655 +
1656 +
1657 +Name:   iqaudio-dacplus
1658 +Info:   Configures the IQaudio DAC+ audio card
1659 +Load:   dtoverlay=iqaudio-dacplus
1660 +Params: <None>
1661 +
1662 +
1663 +Name:   lirc-rpi
1664 +Info:   Configures lirc-rpi (Linux Infrared Remote Control for Raspberry Pi)
1665 +        Consult the module documentation for more details.
1666 +Load:   dtoverlay=lirc-rpi,<param>=<val>,...
1667 +Params: gpio_out_pin             GPIO for output (default "17")
1668 +
1669 +        gpio_in_pin              GPIO for input (default "18")
1670 +
1671 +        gpio_in_pull             Pull up/down/off on the input pin
1672 +                                 (default "down")
1673 +
1674 +        sense                    Override the IR receive auto-detection logic:
1675 +                                   "1" = force active high
1676 +                                   "0" = force active low
1677 +                                   "-1" = use auto-detection
1678 +                                 (default "-1")
1679 +
1680 +        softcarrier              Turn the software carrier "on" or "off"
1681 +                                 (default "on")
1682 +
1683 +        invert                   "on" = invert the output pin (default "off")
1684 +
1685 +        debug                    "on" = enable additional debug messages
1686 +                                 (default "off")
1687 +
1688 +
1689 +Name:   mcp2515-can0
1690 +Info:   Configures the MCP2515 CAN controller
1691 +Load:   dtoverlay=mcp2515-can0,<param>=<val>
1692 +Params: oscillator               Clock frequency for the CAN controller (Hz)
1693 +
1694 +        spimaxfrequency          Maximum SPI frequence (Hz)
1695 +
1696 +        interrupt                GPIO for interrupt signal
1697 +
1698 +
1699 +Name:   mmc
1700 +Info:   Selects the bcm2835-mmc SD/MMC driver, optionally with overclock
1701 +Load:   dtoverlay=mmc,<param>=<val>
1702 +Params: overclock_50             Clock (in MHz) to use when the MMC framework
1703 +                                 requests 50MHz
1704 +        force_pio                Disable DMA support
1705 +
1706 +
1707 +Name:   mz61581
1708 +Info:   MZ61581 display by Tontec
1709 +Load:   dtoverlay=mz61581,<param>=<val>
1710 +Params: speed                    Display SPI bus speed
1711 +
1712 +        rotate                   Display rotation {0,90,180,270}
1713 +
1714 +        fps                      Delay between frame updates
1715 +
1716 +        debug                    Debug output level {0-7}
1717 +
1718 +        xohms                    Touchpanel sensitivity (X-plate resistance)
1719 +
1720 +
1721 +[ The pcf2127-rtc overlay has been deleted. See i2c-rtc. ]
1722 +
1723 +
1724 +[ The pcf8523-rtc overlay has been deleted. See i2c-rtc. ]
1725 +
1726 +
1727 +[ The pcf8563-rtc overlay has been deleted. See i2c-rtc. ]
1728 +
1729 +
1730 +Name:   piscreen
1731 +Info:   PiScreen display by OzzMaker.com
1732 +Load:   dtoverlay=piscreen,<param>=<val>
1733 +Params: speed                    Display SPI bus speed
1734 +
1735 +        rotate                   Display rotation {0,90,180,270}
1736 +
1737 +        fps                      Delay between frame updates
1738 +
1739 +        debug                    Debug output level {0-7}
1740 +
1741 +        xohms                    Touchpanel sensitivity (X-plate resistance)
1742 +
1743 +
1744 +Name:   pitft28-resistive
1745 +Info:   Adafruit PiTFT 2.8" resistive touch screen
1746 +Load:   dtoverlay=pitft28-resistive,<param>=<val>
1747 +Params: speed                    Display SPI bus speed
1748 +
1749 +        rotate                   Display rotation {0,90,180,270}
1750 +
1751 +        fps                      Delay between frame updates
1752 +
1753 +        debug                    Debug output level {0-7}
1754 +
1755 +
1756 +Name:   pps-gpio
1757 +Info:   Configures the pps-gpio (pulse-per-second time signal via GPIO).
1758 +Load:   dtoverlay=pps-gpio,<param>=<val>
1759 +Params: gpiopin                  Input GPIO (default "18")
1760 +
1761 +
1762 +Name:   rpi-dac
1763 +Info:   Configures the RPi DAC audio card
1764 +Load:   dtoverlay=rpi-dac
1765 +Params: <None>
1766 +
1767 +
1768 +Name:   rpi-display
1769 +Info:   RPi-Display - 2.8" Touch Display by Watterott
1770 +Load:   dtoverlay=rpi-display,<param>=<val>
1771 +Params: speed                    Display SPI bus speed
1772 +
1773 +        rotate                   Display rotation {0,90,180,270}
1774 +
1775 +        fps                      Delay between frame updates
1776 +
1777 +        debug                    Debug output level {0-7}
1778 +
1779 +        xohms                    Touchpanel sensitivity (X-plate resistance)
1780 +
1781 +
1782 +Name:   rpi-proto
1783 +Info:   Configures the RPi Proto audio card
1784 +Load:   dtoverlay=rpi-proto
1785 +Params: <None>
1786 +
1787 +
1788 +Name:   sdhost
1789 +Info:   Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock
1790 +Load:   dtoverlay=sdhost,<param>=<val>
1791 +Params: overclock_50             Clock (in MHz) to use when the MMC framework
1792 +                                 requests 50MHz
1793 +        force_pio                Disable DMA support
1794 +
1795 +
1796 +Name:   spi-bcm2708
1797 +Info:   Selects the bcm2708-spi SPI driver
1798 +Load:   dtoverlay=spi-bcm2708
1799 +Params: <None>
1800 +
1801 +
1802 +Name:   spi-bcm2835
1803 +Info:   Selects the bcm2835-spi SPI driver
1804 +Load:   dtoverlay=spi-bcm2835
1805 +Params: <None>
1806 +
1807 +
1808 +Name:   tinylcd35
1809 +Info:   3.5" Color TFT Display by www.tinylcd.com
1810 +        Options: Touch, RTC, keypad
1811 +Load:   dtoverlay=tinylcd35,<param>=<val>
1812 +Params: speed                    Display SPI bus speed
1813 +
1814 +        rotate                   Display rotation {0,90,180,270}
1815 +
1816 +        fps                      Delay between frame updates
1817 +
1818 +        debug                    Debug output level {0-7}
1819 +
1820 +        touch                    Enable touch panel
1821 +
1822 +        touchgpio                Touch controller IRQ GPIO
1823 +
1824 +        xohms                    Touchpanel: Resistance of X-plate in ohms
1825 +
1826 +        rtc-pcf                  PCF8563 Real Time Clock
1827 +
1828 +        rtc-ds                   DS1307 Real Time Clock
1829 +
1830 +        keypad                   Enable keypad
1831 +
1832 +        Examples:
1833 +            Display with touchpanel, PCF8563 RTC and keypad:
1834 +                dtoverlay=tinylcd35,touch,rtc-pcf,keypad
1835 +            Old touch display:
1836 +                dtoverlay=tinylcd35,touch,touchgpio=3
1837 +
1838 +
1839 +Name:   w1-gpio
1840 +Info:   Configures the w1-gpio Onewire interface module.
1841 +        Use this overlay if you *don't* need a GPIO to drive an external pullup.
1842 +Load:   dtoverlay=w1-gpio,<param>=<val>
1843 +Params: gpiopin                  GPIO for I/O (default "4")
1844 +
1845 +        pullup                   Non-zero, "on", or "y" to enable the parasitic
1846 +                                 power (2-wire, power-on-data) feature
1847 +
1848 +
1849 +Name:   w1-gpio-pullup
1850 +Info:   Configures the w1-gpio Onewire interface module.
1851 +        Use this overlay if you *do* need a GPIO to drive an external pullup.
1852 +Load:   dtoverlay=w1-gpio-pullup,<param>=<val>,...
1853 +Params: gpiopin                  GPIO for I/O (default "4")
1854 +
1855 +        pullup                   Non-zero, "on", or "y" to enable the parasitic
1856 +                                 power (2-wire, power-on-data) feature
1857 +
1858 +        extpullup                GPIO for external pullup (default "5")
1859 +
1860 +
1861 +Troubleshooting
1862 +===============
1863 +
1864 +If you are experiencing problems that you think are DT-related, enable DT
1865 +diagnostic output by adding this to /boot/config.txt:
1866 +
1867 +    dtdebug=on
1868 +
1869 +and rebooting. Then run:
1870 +
1871 +    sudo vcdbg log msg
1872 +
1873 +and look for relevant messages.
1874 +
1875 +Further reading
1876 +===============
1877 +
1878 +This is only meant to be a quick introduction to the subject of Device Tree on
1879 +Raspberry Pi. There is a more complete explanation here:
1880 +
1881 +http://www.raspberrypi.org/documentation/configuration/device-tree.md
1882 --- /dev/null
1883 +++ b/arch/arm/boot/dts/overlays/ads7846-overlay.dts
1884 @@ -0,0 +1,83 @@
1885 +/*
1886 + * Generic Device Tree overlay for the ADS7846 touch controller
1887 + *
1888 + */
1889 +
1890 +/dts-v1/;
1891 +/plugin/;
1892 +
1893 +/ {
1894 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
1895 +
1896 +       fragment@0 {
1897 +               target = <&spi0>;
1898 +               __overlay__ {
1899 +                       status = "okay";
1900 +
1901 +                       spidev@0{
1902 +                               status = "disabled";
1903 +                       };
1904 +
1905 +                       spidev@1{
1906 +                               status = "disabled";
1907 +                       };
1908 +               };
1909 +       };
1910 +
1911 +       fragment@1 {
1912 +               target = <&gpio>;
1913 +               __overlay__ {
1914 +                       ads7846_pins: ads7846_pins {
1915 +                               brcm,pins = <255>; /* illegal default value */
1916 +                               brcm,function = <0>; /* in */
1917 +                               brcm,pull = <0>; /* none */
1918 +                       };
1919 +               };
1920 +       };
1921 +
1922 +       fragment@2 {
1923 +               target = <&spi0>;
1924 +               __overlay__ {
1925 +                       /* needed to avoid dtc warning */
1926 +                       #address-cells = <1>;
1927 +                       #size-cells = <0>;
1928 +
1929 +                       ads7846: ads7846@1 {
1930 +                               compatible = "ti,ads7846";
1931 +                               reg = <1>;
1932 +                               pinctrl-names = "default";
1933 +                               pinctrl-0 = <&ads7846_pins>;
1934 +
1935 +                               spi-max-frequency = <2000000>;
1936 +                               interrupts = <255 2>; /* high-to-low edge triggered */
1937 +                               interrupt-parent = <&gpio>;
1938 +                               pendown-gpio = <&gpio 255 0>;
1939 +
1940 +                               /* driver defaults */
1941 +                               ti,x-min = /bits/ 16 <0>;
1942 +                               ti,y-min = /bits/ 16 <0>;
1943 +                               ti,x-max = /bits/ 16 <0x0FFF>;
1944 +                               ti,y-max = /bits/ 16 <0x0FFF>;
1945 +                               ti,pressure-min = /bits/ 16 <0>;
1946 +                               ti,pressure-max = /bits/ 16 <0xFFFF>;
1947 +                               ti,x-plate-ohms = /bits/ 16 <400>;
1948 +                       };
1949 +               };
1950 +       };
1951 +       __overrides__ {
1952 +               cs =     <&ads7846>,"reg:0";
1953 +               speed =  <&ads7846>,"spi-max-frequency:0";
1954 +               penirq = <&ads7846_pins>,"brcm,pins:0", /* REQUIRED */
1955 +                        <&ads7846>,"interrupts:0",
1956 +                        <&ads7846>,"pendown-gpio:4";
1957 +               penirq_pull = <&ads7846_pins>,"brcm,pull:0";
1958 +               swapxy = <&ads7846>,"ti,swap-xy?";
1959 +               xmin =   <&ads7846>,"ti,x-min;0";
1960 +               ymin =   <&ads7846>,"ti,y-min;0";
1961 +               xmax =   <&ads7846>,"ti,x-max;0";
1962 +               ymax =   <&ads7846>,"ti,y-max;0";
1963 +               pmin =   <&ads7846>,"ti,pressure-min;0";
1964 +               pmax =   <&ads7846>,"ti,pressure-max;0";
1965 +               xohms =  <&ads7846>,"ti,x-plate-ohms;0";
1966 +       };
1967 +};
1968 --- /dev/null
1969 +++ b/arch/arm/boot/dts/overlays/bmp085_i2c-sensor-overlay.dts
1970 @@ -0,0 +1,23 @@
1971 +// Definitions for BMP085/BMP180 digital barometric pressure and temperature sensors from Bosch Sensortec
1972 +/dts-v1/;
1973 +/plugin/;
1974 +
1975 +/ {
1976 +        compatible = "brcm,bcm2708";
1977 +
1978 +        fragment@0 {
1979 +                target = <&i2c1>;
1980 +                __overlay__ {
1981 +                        #address-cells = <1>;
1982 +                        #size-cells = <0>;
1983 +                        status = "okay";
1984 +
1985 +                        bmp085@77 {
1986 +                                compatible = "bosch,bmp085";
1987 +                                reg = <0x77>;
1988 +                                default-oversampling = <3>;
1989 +                                status = "okay";
1990 +                        };
1991 +                };
1992 +        };
1993 +};
1994 --- /dev/null
1995 +++ b/arch/arm/boot/dts/overlays/dht11-overlay.dts
1996 @@ -0,0 +1,39 @@
1997 +/*
1998 + * Overlay for the DHT11/21/22 humidity/temperature sensor modules.
1999 + */
2000 +/dts-v1/;
2001 +/plugin/;
2002 +
2003 +/ {
2004 +       compatible = "brcm,bcm2708";
2005 +
2006 +       fragment@0 {
2007 +               target-path = "/";
2008 +               __overlay__ {
2009 +
2010 +                       dht11: dht11@0 {
2011 +                               compatible = "dht11";
2012 +                               pinctrl-names = "default";
2013 +                               pinctrl-0 = <&dht11_pins>;
2014 +                               gpios = <&gpio 4 0>;
2015 +                               status = "okay";
2016 +                       };
2017 +               };
2018 +       };
2019 +
2020 +       fragment@1 {
2021 +               target = <&gpio>;
2022 +               __overlay__ {
2023 +                       dht11_pins: dht11_pins {
2024 +                               brcm,pins = <4>;
2025 +                               brcm,function = <0>; // in
2026 +                               brcm,pull = <0>; // off
2027 +                       };
2028 +               };
2029 +       };
2030 +
2031 +       __overrides__ {
2032 +               gpiopin = <&dht11_pins>,"brcm,pins:0",
2033 +                       <&dht11>,"gpios:4";
2034 +       };
2035 +};
2036 --- /dev/null
2037 +++ b/arch/arm/boot/dts/overlays/enc28j60-overlay.dts
2038 @@ -0,0 +1,50 @@
2039 +// Overlay for the Microchip ENC28J60 Ethernet Controller
2040 +/dts-v1/;
2041 +/plugin/;
2042 +
2043 +/ {
2044 +       compatible = "brcm,bcm2708";
2045 +
2046 +       fragment@0 {
2047 +               target = <&spi0>;
2048 +               __overlay__ {
2049 +                       /* needed to avoid dtc warning */
2050 +                       #address-cells = <1>;
2051 +                       #size-cells = <0>;
2052 +
2053 +                       status = "okay";
2054 +
2055 +                       spidev@0{
2056 +                               status = "disabled";
2057 +                       };
2058 +
2059 +                       eth1: enc28j60@0{
2060 +                               compatible = "microchip,enc28j60";
2061 +                               reg = <0>; /* CE0 */
2062 +                               pinctrl-names = "default";
2063 +                               pinctrl-0 = <&eth1_pins>;
2064 +                               interrupt-parent = <&gpio>;
2065 +                               interrupts = <25 0x2>; /* falling edge */
2066 +                               spi-max-frequency = <12000000>;
2067 +                               status = "okay";
2068 +                       };
2069 +               };
2070 +       };
2071 +
2072 +       fragment@1 {
2073 +               target = <&gpio>;
2074 +               __overlay__ {
2075 +                       eth1_pins: eth1_pins {
2076 +                               brcm,pins = <25>;
2077 +                               brcm,function = <0>; /* in */
2078 +                               brcm,pull = <0>; /* none */
2079 +                       };
2080 +               };
2081 +       };
2082 +
2083 +       __overrides__ {
2084 +               int_pin = <&eth1>, "interrupts:0",
2085 +                         <&eth1_pins>, "brcm,pins:0";
2086 +               speed   = <&eth1>, "spi-max-frequency:0";
2087 +       };
2088 +};
2089 --- /dev/null
2090 +++ b/arch/arm/boot/dts/overlays/hifiberry-amp-overlay.dts
2091 @@ -0,0 +1,39 @@
2092 +// Definitions for HiFiBerry Amp/Amp+
2093 +/dts-v1/;
2094 +/plugin/;
2095 +
2096 +/ {
2097 +       compatible = "brcm,bcm2708";
2098 +
2099 +       fragment@0 {
2100 +               target = <&sound>;
2101 +               __overlay__ {
2102 +                       compatible = "hifiberry,hifiberry-amp";
2103 +                       i2s-controller = <&i2s>;
2104 +                       status = "okay";
2105 +               };
2106 +       };
2107 +
2108 +       fragment@1 {
2109 +               target = <&i2s>;
2110 +               __overlay__ {
2111 +                       status = "okay";
2112 +               };
2113 +       };
2114 +
2115 +       fragment@2 {
2116 +               target = <&i2c1>;
2117 +               __overlay__ {
2118 +                       #address-cells = <1>;
2119 +                       #size-cells = <0>;
2120 +                       status = "okay";
2121 +
2122 +                       tas5713@1b {
2123 +                               #sound-dai-cells = <0>;
2124 +                               compatible = "ti,tas5713";
2125 +                               reg = <0x1b>;
2126 +                               status = "okay";
2127 +                       };
2128 +               };
2129 +       };
2130 +};
2131 --- /dev/null
2132 +++ b/arch/arm/boot/dts/overlays/hifiberry-dac-overlay.dts
2133 @@ -0,0 +1,34 @@
2134 +// Definitions for HiFiBerry DAC
2135 +/dts-v1/;
2136 +/plugin/;
2137 +
2138 +/ {
2139 +       compatible = "brcm,bcm2708";
2140 +
2141 +       fragment@0 {
2142 +               target = <&sound>;
2143 +               __overlay__ {
2144 +                       compatible = "hifiberry,hifiberry-dac";
2145 +                       i2s-controller = <&i2s>;
2146 +                       status = "okay";
2147 +               };
2148 +       };
2149 +
2150 +       fragment@1 {
2151 +               target = <&i2s>;
2152 +               __overlay__ {
2153 +                       status = "okay";
2154 +               };
2155 +       };
2156 +
2157 +       fragment@2 {
2158 +               target-path = "/";
2159 +               __overlay__ {
2160 +                       pcm5102a-codec {
2161 +                               #sound-dai-cells = <0>;
2162 +                               compatible = "ti,pcm5102a";
2163 +                               status = "okay";
2164 +                       };
2165 +               };
2166 +       };
2167 +};
2168 --- /dev/null
2169 +++ b/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts
2170 @@ -0,0 +1,39 @@
2171 +// Definitions for HiFiBerry DAC+
2172 +/dts-v1/;
2173 +/plugin/;
2174 +
2175 +/ {
2176 +       compatible = "brcm,bcm2708";
2177 +
2178 +       fragment@0 {
2179 +               target = <&sound>;
2180 +               __overlay__ {
2181 +                       compatible = "hifiberry,hifiberry-dacplus";
2182 +                       i2s-controller = <&i2s>;
2183 +                       status = "okay";
2184 +               };
2185 +       };
2186 +
2187 +       fragment@1 {
2188 +               target = <&i2s>;
2189 +               __overlay__ {
2190 +                       status = "okay";
2191 +               };
2192 +       };
2193 +
2194 +       fragment@2 {
2195 +               target = <&i2c1>;
2196 +               __overlay__ {
2197 +                       #address-cells = <1>;
2198 +                       #size-cells = <0>;
2199 +                       status = "okay";
2200 +
2201 +                       pcm5122@4d {
2202 +                               #sound-dai-cells = <0>;
2203 +                               compatible = "ti,pcm5122";
2204 +                               reg = <0x4d>;
2205 +                               status = "okay";
2206 +                       };
2207 +               };
2208 +       };
2209 +};
2210 --- /dev/null
2211 +++ b/arch/arm/boot/dts/overlays/hifiberry-digi-overlay.dts
2212 @@ -0,0 +1,39 @@
2213 +// Definitions for HiFiBerry Digi
2214 +/dts-v1/;
2215 +/plugin/;
2216 +
2217 +/ {
2218 +       compatible = "brcm,bcm2708";
2219 +
2220 +       fragment@0 {
2221 +               target = <&sound>;
2222 +               __overlay__ {
2223 +                       compatible = "hifiberry,hifiberry-digi";
2224 +                       i2s-controller = <&i2s>;
2225 +                       status = "okay";
2226 +               };
2227 +       };
2228 +
2229 +       fragment@1 {
2230 +               target = <&i2s>;
2231 +               __overlay__ {
2232 +                       status = "okay";
2233 +               };
2234 +       };
2235 +
2236 +       fragment@2 {
2237 +               target = <&i2c1>;
2238 +               __overlay__ {
2239 +                       #address-cells = <1>;
2240 +                       #size-cells = <0>;
2241 +                       status = "okay";
2242 +
2243 +                       wm8804@3b {
2244 +                               #sound-dai-cells = <0>;
2245 +                               compatible = "wlf,wm8804";
2246 +                               reg = <0x3b>;
2247 +                               status = "okay";
2248 +                       };
2249 +               };
2250 +       };
2251 +};
2252 --- /dev/null
2253 +++ b/arch/arm/boot/dts/overlays/hy28a-overlay.dts
2254 @@ -0,0 +1,87 @@
2255 +/*
2256 + * Device Tree overlay for HY28A display
2257 + *
2258 + */
2259 +
2260 +/dts-v1/;
2261 +/plugin/;
2262 +
2263 +/ {
2264 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
2265 +
2266 +       fragment@0 {
2267 +               target = <&spi0>;
2268 +               __overlay__ {
2269 +                       status = "okay";
2270 +
2271 +                       spidev@0{
2272 +                               status = "disabled";
2273 +                       };
2274 +
2275 +                       spidev@1{
2276 +                               status = "disabled";
2277 +                       };
2278 +               };
2279 +       };
2280 +
2281 +       fragment@1 {
2282 +               target = <&gpio>;
2283 +               __overlay__ {
2284 +                       hy28a_pins: hy28a_pins {
2285 +                               brcm,pins = <17 25 18>;
2286 +                               brcm,function = <0 1 1>; /* in out out */
2287 +                       };
2288 +               };
2289 +       };
2290 +
2291 +       fragment@2 {
2292 +               target = <&spi0>;
2293 +               __overlay__ {
2294 +                       /* needed to avoid dtc warning */
2295 +                       #address-cells = <1>;
2296 +                       #size-cells = <0>;
2297 +
2298 +                       hy28a: hy28a@0{
2299 +                               compatible = "ilitek,ili9320";
2300 +                               reg = <0>;
2301 +                               pinctrl-names = "default";
2302 +                               pinctrl-0 = <&hy28a_pins>;
2303 +
2304 +                               spi-max-frequency = <32000000>;
2305 +                               spi-cpol;
2306 +                               spi-cpha;
2307 +                               rotate = <270>;
2308 +                               bgr;
2309 +                               fps = <50>;
2310 +                               buswidth = <8>;
2311 +                               startbyte = <0x70>;
2312 +                               reset-gpios = <&gpio 25 0>;
2313 +                               led-gpios = <&gpio 18 1>;
2314 +                               debug = <0>;
2315 +                       };
2316 +
2317 +                       hy28a_ts: hy28a-ts@1 {
2318 +                               compatible = "ti,ads7846";
2319 +                               reg = <1>;
2320 +
2321 +                               spi-max-frequency = <2000000>;
2322 +                               interrupts = <17 2>; /* high-to-low edge triggered */
2323 +                               interrupt-parent = <&gpio>;
2324 +                               pendown-gpio = <&gpio 17 0>;
2325 +                               ti,x-plate-ohms = /bits/ 16 <100>;
2326 +                               ti,pressure-max = /bits/ 16 <255>;
2327 +                       };
2328 +               };
2329 +       };
2330 +       __overrides__ {
2331 +               speed =         <&hy28a>,"spi-max-frequency:0";
2332 +               rotate =        <&hy28a>,"rotate:0";
2333 +               fps =           <&hy28a>,"fps:0";
2334 +               debug =         <&hy28a>,"debug:0";
2335 +               xohms =         <&hy28a_ts>,"ti,x-plate-ohms;0";
2336 +               resetgpio =     <&hy28a>,"reset-gpios:4",
2337 +                               <&hy28a_pins>, "brcm,pins:1";
2338 +               ledgpio =       <&hy28a>,"led-gpios:4",
2339 +                               <&hy28a_pins>, "brcm,pins:2";
2340 +       };
2341 +};
2342 --- /dev/null
2343 +++ b/arch/arm/boot/dts/overlays/hy28b-overlay.dts
2344 @@ -0,0 +1,142 @@
2345 +/*
2346 + * Device Tree overlay for HY28b display shield by Texy
2347 + *
2348 + */
2349 +
2350 +/dts-v1/;
2351 +/plugin/;
2352 +
2353 +/ {
2354 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
2355 +
2356 +       fragment@0 {
2357 +               target = <&spi0>;
2358 +               __overlay__ {
2359 +                       status = "okay";
2360 +
2361 +                       spidev@0{
2362 +                               status = "disabled";
2363 +                       };
2364 +
2365 +                       spidev@1{
2366 +                               status = "disabled";
2367 +                       };
2368 +               };
2369 +       };
2370 +
2371 +       fragment@1 {
2372 +               target = <&gpio>;
2373 +               __overlay__ {
2374 +                       hy28b_pins: hy28b_pins {
2375 +                               brcm,pins = <17 25 18>;
2376 +                               brcm,function = <0 1 1>; /* in out out */
2377 +                       };
2378 +               };
2379 +       };
2380 +
2381 +       fragment@2 {
2382 +               target = <&spi0>;
2383 +               __overlay__ {
2384 +                       /* needed to avoid dtc warning */
2385 +                       #address-cells = <1>;
2386 +                       #size-cells = <0>;
2387 +
2388 +                       hy28b: hy28b@0{
2389 +                               compatible = "ilitek,ili9325";
2390 +                               reg = <0>;
2391 +                               pinctrl-names = "default";
2392 +                               pinctrl-0 = <&hy28b_pins>;
2393 +
2394 +                               spi-max-frequency = <48000000>;
2395 +                               spi-cpol;
2396 +                               spi-cpha;
2397 +                               rotate = <270>;
2398 +                               bgr;
2399 +                               fps = <50>;
2400 +                               buswidth = <8>;
2401 +                               startbyte = <0x70>;
2402 +                               reset-gpios = <&gpio 25 0>;
2403 +                               led-gpios = <&gpio 18 1>;
2404 +
2405 +                               gamma = "04 1F 4 7 7 0 7 7 6 0\n0F 00 1 7 4 0 0 0 6 7";
2406 +
2407 +                               init = <0x10000e7 0x0010
2408 +                                       0x1000000 0x0001
2409 +                                       0x1000001 0x0100
2410 +                                       0x1000002 0x0700
2411 +                                       0x1000003 0x1030
2412 +                                       0x1000004 0x0000
2413 +                                       0x1000008 0x0207
2414 +                                       0x1000009 0x0000
2415 +                                       0x100000a 0x0000
2416 +                                       0x100000c 0x0001
2417 +                                       0x100000d 0x0000
2418 +                                       0x100000f 0x0000
2419 +                                       0x1000010 0x0000
2420 +                                       0x1000011 0x0007
2421 +                                       0x1000012 0x0000
2422 +                                       0x1000013 0x0000
2423 +                                       0x2000032
2424 +                                       0x1000010 0x1590
2425 +                                       0x1000011 0x0227
2426 +                                       0x2000032
2427 +                                       0x1000012 0x009c
2428 +                                       0x2000032
2429 +                                       0x1000013 0x1900
2430 +                                       0x1000029 0x0023
2431 +                                       0x100002b 0x000e
2432 +                                       0x2000032
2433 +                                       0x1000020 0x0000
2434 +                                       0x1000021 0x0000
2435 +                                       0x2000032
2436 +                                       0x1000050 0x0000
2437 +                                       0x1000051 0x00ef
2438 +                                       0x1000052 0x0000
2439 +                                       0x1000053 0x013f
2440 +                                       0x1000060 0xa700
2441 +                                       0x1000061 0x0001
2442 +                                       0x100006a 0x0000
2443 +                                       0x1000080 0x0000
2444 +                                       0x1000081 0x0000
2445 +                                       0x1000082 0x0000
2446 +                                       0x1000083 0x0000
2447 +                                       0x1000084 0x0000
2448 +                                       0x1000085 0x0000
2449 +                                       0x1000090 0x0010
2450 +                                       0x1000092 0x0000
2451 +                                       0x1000093 0x0003
2452 +                                       0x1000095 0x0110
2453 +                                       0x1000097 0x0000
2454 +                                       0x1000098 0x0000
2455 +                                       0x1000007 0x0133
2456 +                                       0x1000020 0x0000
2457 +                                       0x1000021 0x0000
2458 +                                       0x2000064>;
2459 +                               debug = <0>;
2460 +                       };
2461 +
2462 +                       hy28b_ts: hy28b-ts@1 {
2463 +                               compatible = "ti,ads7846";
2464 +                               reg = <1>;
2465 +
2466 +                               spi-max-frequency = <2000000>;
2467 +                               interrupts = <17 2>; /* high-to-low edge triggered */
2468 +                               interrupt-parent = <&gpio>;
2469 +                               pendown-gpio = <&gpio 17 0>;
2470 +                               ti,x-plate-ohms = /bits/ 16 <100>;
2471 +                               ti,pressure-max = /bits/ 16 <255>;
2472 +                       };
2473 +               };
2474 +       };
2475 +       __overrides__ {
2476 +               speed =         <&hy28b>,"spi-max-frequency:0";
2477 +               rotate =        <&hy28b>,"rotate:0";
2478 +               fps =           <&hy28b>,"fps:0";
2479 +               debug =         <&hy28b>,"debug:0";
2480 +               xohms =         <&hy28b_ts>,"ti,x-plate-ohms;0";
2481 +               resetgpio =     <&hy28b>,"reset-gpios:4",
2482 +                               <&hy28b_pins>, "brcm,pins:1";
2483 +               ledgpio =       <&hy28b>,"led-gpios:4",
2484 +                               <&hy28b_pins>, "brcm,pins:2";
2485 +       };
2486 +};
2487 --- /dev/null
2488 +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
2489 @@ -0,0 +1,49 @@
2490 +// Definitions for several I2C based Real Time Clocks
2491 +/dts-v1/;
2492 +/plugin/;
2493 +
2494 +/ {
2495 +       compatible = "brcm,bcm2708";
2496 +
2497 +       fragment@0 {
2498 +               target = <&i2c1>;
2499 +               __overlay__ {
2500 +                       #address-cells = <1>;
2501 +                       #size-cells = <0>;
2502 +                       status = "okay";
2503 +
2504 +                       ds1307: ds1307@68 {
2505 +                               compatible = "maxim,ds1307";
2506 +                               reg = <0x68>;
2507 +                               status = "disable";
2508 +                       };
2509 +                       ds3231: ds3231@68 {
2510 +                               compatible = "maxim,ds3231";
2511 +                               reg = <0x68>;
2512 +                               status = "disable";
2513 +                       };
2514 +                       pcf2127: pcf2127@51 {
2515 +                               compatible = "nxp,pcf2127";
2516 +                               reg = <0x51>;
2517 +                               status = "disable";
2518 +                       };
2519 +                       pcf8523: pcf8523@68 {
2520 +                               compatible = "nxp,pcf8523";
2521 +                               reg = <0x68>;
2522 +                               status = "disable";
2523 +                       };
2524 +                       pcf8563: pcf8563@51 {
2525 +                               compatible = "nxp,pcf8563";
2526 +                               reg = <0x51>;
2527 +                               status = "disable";
2528 +                       };
2529 +               };
2530 +       };
2531 +       __overrides__ {
2532 +               ds1307 = <&ds1307>,"status";
2533 +               ds3231 = <&ds3231>,"status";
2534 +               pcf2127 = <&pcf2127>,"status";
2535 +               pcf8523 = <&pcf8523>,"status";
2536 +               pcf8563 = <&pcf8563>,"status";
2537 +       };
2538 +};
2539 --- /dev/null
2540 +++ b/arch/arm/boot/dts/overlays/i2s-mmap-overlay.dts
2541 @@ -0,0 +1,13 @@
2542 +/dts-v1/;
2543 +/plugin/;
2544 +
2545 +/{
2546 +       compatible = "brcm,bcm2708";
2547 +
2548 +       fragment@0 {
2549 +               target = <&i2s>;
2550 +               __overlay__ {
2551 +                       brcm,enable-mmap;
2552 +               };
2553 +       };
2554 +};
2555 --- /dev/null
2556 +++ b/arch/arm/boot/dts/overlays/iqaudio-dac-overlay.dts
2557 @@ -0,0 +1,39 @@
2558 +// Definitions for IQaudIO DAC
2559 +/dts-v1/;
2560 +/plugin/;
2561 +
2562 +/ {
2563 +       compatible = "brcm,bcm2708";
2564 +
2565 +       fragment@0 {
2566 +               target = <&sound>;
2567 +               __overlay__ {
2568 +                       compatible = "iqaudio,iqaudio-dac";
2569 +                       i2s-controller = <&i2s>;
2570 +                       status = "okay";
2571 +               };
2572 +       };
2573 +
2574 +       fragment@1 {
2575 +               target = <&i2s>;
2576 +               __overlay__ {
2577 +                       status = "okay";
2578 +               };
2579 +       };
2580 +
2581 +       fragment@2 {
2582 +               target = <&i2c1>;
2583 +               __overlay__ {
2584 +                       #address-cells = <1>;
2585 +                       #size-cells = <0>;
2586 +                       status = "okay";
2587 +
2588 +                       pcm5122@4c {
2589 +                               #sound-dai-cells = <0>;
2590 +                               compatible = "ti,pcm5122";
2591 +                               reg = <0x4c>;
2592 +                               status = "okay";
2593 +                       };
2594 +               };
2595 +       };
2596 +};
2597 --- /dev/null
2598 +++ b/arch/arm/boot/dts/overlays/iqaudio-dacplus-overlay.dts
2599 @@ -0,0 +1,39 @@
2600 +// Definitions for IQaudIO DAC+
2601 +/dts-v1/;
2602 +/plugin/;
2603 +
2604 +/ {
2605 +       compatible = "brcm,bcm2708";
2606 +
2607 +       fragment@0 {
2608 +               target = <&sound>;
2609 +               __overlay__ {
2610 +                       compatible = "iqaudio,iqaudio-dac";
2611 +                       i2s-controller = <&i2s>;
2612 +                       status = "okay";
2613 +               };
2614 +       };
2615 +
2616 +       fragment@1 {
2617 +               target = <&i2s>;
2618 +               __overlay__ {
2619 +                       status = "okay";
2620 +               };
2621 +       };
2622 +
2623 +       fragment@2 {
2624 +               target = <&i2c1>;
2625 +               __overlay__ {
2626 +                       #address-cells = <1>;
2627 +                       #size-cells = <0>;
2628 +                       status = "okay";
2629 +
2630 +                       pcm5122@4c {
2631 +                               #sound-dai-cells = <0>;
2632 +                               compatible = "ti,pcm5122";
2633 +                               reg = <0x4c>;
2634 +                               status = "okay";
2635 +                       };
2636 +               };
2637 +       };
2638 +};
2639 --- /dev/null
2640 +++ b/arch/arm/boot/dts/overlays/lirc-rpi-overlay.dts
2641 @@ -0,0 +1,57 @@
2642 +// Definitions for lirc-rpi module
2643 +/dts-v1/;
2644 +/plugin/;
2645 +
2646 +/ {
2647 +       compatible = "brcm,bcm2708";
2648 +
2649 +       fragment@0 {
2650 +               target-path = "/";
2651 +               __overlay__ {
2652 +                       lirc_rpi: lirc_rpi {
2653 +                               compatible = "rpi,lirc-rpi";
2654 +                               pinctrl-names = "default";
2655 +                               pinctrl-0 = <&lirc_pins>;
2656 +                               status = "okay";
2657 +
2658 +                               // Override autodetection of IR receiver circuit
2659 +                               // (0 = active high, 1 = active low, -1 = no override )
2660 +                               rpi,sense = <0xffffffff>;
2661 +
2662 +                               // Software carrier
2663 +                               // (0 = off, 1 = on)
2664 +                               rpi,softcarrier = <1>;
2665 +
2666 +                               // Invert output
2667 +                               // (0 = off, 1 = on)
2668 +                               rpi,invert = <0>;
2669 +
2670 +                               // Enable debugging messages
2671 +                               // (0 = off, 1 = on)
2672 +                               rpi,debug = <0>;
2673 +                       };
2674 +               };
2675 +       };
2676 +
2677 +       fragment@1 {
2678 +               target = <&gpio>;
2679 +               __overlay__ {
2680 +                       lirc_pins: lirc_pins {
2681 +                               brcm,pins = <17 18>;
2682 +                               brcm,function = <1 0>; // out in
2683 +                               brcm,pull = <0 1>; // off down
2684 +                       };
2685 +               };
2686 +       };
2687 +
2688 +       __overrides__ {
2689 +               gpio_out_pin =  <&lirc_pins>,"brcm,pins:0";
2690 +               gpio_in_pin =   <&lirc_pins>,"brcm,pins:4";
2691 +               gpio_in_pull =  <&lirc_pins>,"brcm,pull:4";
2692 +
2693 +               sense =         <&lirc_rpi>,"rpi,sense:0";
2694 +               softcarrier =   <&lirc_rpi>,"rpi,softcarrier:0";
2695 +               invert =        <&lirc_rpi>,"rpi,invert:0";
2696 +               debug =         <&lirc_rpi>,"rpi,debug:0";
2697 +       };
2698 +};
2699 --- /dev/null
2700 +++ b/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
2701 @@ -0,0 +1,69 @@
2702 +/*
2703 + * Device tree overlay for mcp251x/can0 on spi0.0
2704 + */
2705 +
2706 +/dts-v1/;
2707 +/plugin/;
2708 +
2709 +/ {
2710 +    compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709";
2711 +    /* disable spi-dev for spi0.0 */
2712 +    fragment@0 {
2713 +        target = <&spi0>;
2714 +        __overlay__ {
2715 +            status = "okay";
2716 +            spidev@0{
2717 +                status = "disabled";
2718 +            };
2719 +        };
2720 +    };
2721 +
2722 +    /* the interrupt pin of the can-controller */
2723 +    fragment@1 {
2724 +        target = <&gpio>;
2725 +        __overlay__ {
2726 +            can0_pins: can0_pins {
2727 +                brcm,pins = <25>;
2728 +                brcm,function = <0>; /* input */
2729 +            };
2730 +        };
2731 +    };
2732 +
2733 +    /* the clock/oscillator of the can-controller */
2734 +    fragment@2 {
2735 +        target-path = "/clocks";
2736 +        __overlay__ {
2737 +            /* external oscillator of mcp2515 on SPI0.0 */
2738 +            can0_osc: can0_osc {
2739 +                compatible = "fixed-clock";
2740 +                #clock-cells = <0>;
2741 +                clock-frequency  = <16000000>;
2742 +            };
2743 +        };
2744 +    };
2745 +
2746 +    /* the spi config of the can-controller itself binding everything together */
2747 +    fragment@3 {
2748 +        target = <&spi0>;
2749 +        __overlay__ {
2750 +            /* needed to avoid dtc warning */
2751 +            #address-cells = <1>;
2752 +            #size-cells = <0>;
2753 +            can0: mcp2515@0 {
2754 +                reg = <0>;
2755 +                compatible = "microchip,mcp2515";
2756 +                pinctrl-names = "default";
2757 +                pinctrl-0 = <&can0_pins>;
2758 +                spi-max-frequency = <10000000>;
2759 +                interrupt-parent = <&gpio>;
2760 +                interrupts = <25 0x2>;
2761 +                clocks = <&can0_osc>;
2762 +            };
2763 +        };
2764 +    };
2765 +    __overrides__ {
2766 +        oscillator = <&can0_osc>,"clock-frequency:0";
2767 +        spimaxfrequency = <&can0>,"spi-max-frequency:0";
2768 +        interrupt = <&can0_pins>,"brcm,pins:0",<&can0>,"interrupts:0";
2769 +    };
2770 +};
2771 --- /dev/null
2772 +++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts
2773 @@ -0,0 +1,19 @@
2774 +/dts-v1/;
2775 +/plugin/;
2776 +
2777 +/{
2778 +       compatible = "brcm,bcm2708";
2779 +
2780 +       fragment@0 {
2781 +               target = <&mmc>;
2782 +
2783 +               __overlay__ {
2784 +                       brcm,overclock-50 = <0>;
2785 +               };
2786 +       };
2787 +
2788 +       __overrides__ {
2789 +               overclock_50     = <&mmc>,"brcm,overclock-50:0";
2790 +               force_pio        = <&mmc>,"brcm,force-pio?";
2791 +       };
2792 +};
2793 --- /dev/null
2794 +++ b/arch/arm/boot/dts/overlays/mz61581-overlay.dts
2795 @@ -0,0 +1,109 @@
2796 +/*
2797 + * Device Tree overlay for MZ61581-PI-EXT 2014.12.28 by Tontec
2798 + *
2799 + */
2800 +
2801 +/dts-v1/;
2802 +/plugin/;
2803 +
2804 +/ {
2805 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
2806 +
2807 +       fragment@0 {
2808 +               target = <&spi0>;
2809 +               __overlay__ {
2810 +                       status = "okay";
2811 +
2812 +                       spidev@0{
2813 +                               status = "disabled";
2814 +                       };
2815 +
2816 +                       spidev@1{
2817 +                               status = "disabled";
2818 +                       };
2819 +               };
2820 +       };
2821 +
2822 +       fragment@1 {
2823 +               target = <&gpio>;
2824 +               __overlay__ {
2825 +                       mz61581_pins: mz61581_pins {
2826 +                               brcm,pins = <4 15 18 25>;
2827 +                               brcm,function = <0 1 1 1>; /* in out out out */
2828 +                       };
2829 +               };
2830 +       };
2831 +
2832 +       fragment@2 {
2833 +               target = <&spi0>;
2834 +               __overlay__ {
2835 +                       /* needed to avoid dtc warning */
2836 +                       #address-cells = <1>;
2837 +                       #size-cells = <0>;
2838 +
2839 +                       mz61581: mz61581@0{
2840 +                               compatible = "samsung,s6d02a1";
2841 +                               reg = <0>;
2842 +                               pinctrl-names = "default";
2843 +                               pinctrl-0 = <&mz61581_pins>;
2844 +
2845 +                               spi-max-frequency = <128000000>;
2846 +                               spi-cpol;
2847 +                               spi-cpha;
2848 +
2849 +                               width = <320>;
2850 +                               height = <480>;
2851 +                               rotate = <270>;
2852 +                               bgr;
2853 +                               fps = <30>;
2854 +                               buswidth = <8>;
2855 +
2856 +                               reset-gpios = <&gpio 15 0>;
2857 +                               dc-gpios = <&gpio 25 0>;
2858 +                               led-gpios = <&gpio 18 0>;
2859 +
2860 +                               init = <0x10000b0 00
2861 +                                       0x1000011
2862 +                                       0x20000ff
2863 +                                       0x10000b3 0x02 0x00 0x00 0x00
2864 +                                       0x10000c0 0x13 0x3b 0x00 0x02 0x00 0x01 0x00 0x43
2865 +                                       0x10000c1 0x08 0x16 0x08 0x08
2866 +                                       0x10000c4 0x11 0x07 0x03 0x03
2867 +                                       0x10000c6 0x00
2868 +                                       0x10000c8 0x03 0x03 0x13 0x5c 0x03 0x07 0x14 0x08 0x00 0x21 0x08 0x14 0x07 0x53 0x0c 0x13 0x03 0x03 0x21 0x00
2869 +                                       0x1000035 0x00
2870 +                                       0x1000036 0xa0
2871 +                                       0x100003a 0x55
2872 +                                       0x1000044 0x00 0x01
2873 +                                       0x10000d0 0x07 0x07 0x1d 0x03
2874 +                                       0x10000d1 0x03 0x30 0x10
2875 +                                       0x10000d2 0x03 0x14 0x04
2876 +                                       0x1000029
2877 +                                       0x100002c>;
2878 +
2879 +                               /* This is a workaround to make sure the init sequence slows down and doesn't fail */
2880 +                               debug = <3>;
2881 +                       };
2882 +
2883 +                       mz61581_ts: mz61581_ts@1 {
2884 +                               compatible = "ti,ads7846";
2885 +                               reg = <1>;
2886 +
2887 +                               spi-max-frequency = <2000000>;
2888 +                               interrupts = <4 2>; /* high-to-low edge triggered */
2889 +                               interrupt-parent = <&gpio>;
2890 +                               pendown-gpio = <&gpio 4 0>;
2891 +
2892 +                               ti,x-plate-ohms = /bits/ 16 <60>;
2893 +                               ti,pressure-max = /bits/ 16 <255>;
2894 +                       };
2895 +               };
2896 +       };
2897 +       __overrides__ {
2898 +               speed =   <&mz61581>, "spi-max-frequency:0";
2899 +               rotate =  <&mz61581>, "rotate:0";
2900 +               fps =     <&mz61581>, "fps:0";
2901 +               debug =   <&mz61581>, "debug:0";
2902 +               xohms =   <&mz61581_ts>,"ti,x-plate-ohms;0";
2903 +       };
2904 +};
2905 --- /dev/null
2906 +++ b/arch/arm/boot/dts/overlays/piscreen-overlay.dts
2907 @@ -0,0 +1,96 @@
2908 +/*
2909 + * Device Tree overlay for PiScreen 3.5" display shield by Ozzmaker
2910 + *
2911 + */
2912 +
2913 +/dts-v1/;
2914 +/plugin/;
2915 +
2916 +/ {
2917 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
2918 +
2919 +       fragment@0 {
2920 +               target = <&spi0>;
2921 +               __overlay__ {
2922 +                       status = "okay";
2923 +
2924 +                       spidev@0{
2925 +                               status = "disabled";
2926 +                       };
2927 +
2928 +                       spidev@1{
2929 +                               status = "disabled";
2930 +                       };
2931 +               };
2932 +       };
2933 +
2934 +       fragment@1 {
2935 +               target = <&gpio>;
2936 +               __overlay__ {
2937 +                       piscreen_pins: piscreen_pins {
2938 +                               brcm,pins = <17 25 24 22>;
2939 +                               brcm,function = <0 1 1 1>; /* in out out out */
2940 +                       };
2941 +               };
2942 +       };
2943 +
2944 +       fragment@2 {
2945 +               target = <&spi0>;
2946 +               __overlay__ {
2947 +                       /* needed to avoid dtc warning */
2948 +                       #address-cells = <1>;
2949 +                       #size-cells = <0>;
2950 +
2951 +                       piscreen: piscreen@0{
2952 +                               compatible = "ilitek,ili9486";
2953 +                               reg = <0>;
2954 +                               pinctrl-names = "default";
2955 +                               pinctrl-0 = <&piscreen_pins>;
2956 +
2957 +                               spi-max-frequency = <24000000>;
2958 +                               rotate = <270>;
2959 +                               bgr;
2960 +                               fps = <30>;
2961 +                               buswidth = <8>;
2962 +                               regwidth = <16>;
2963 +                               reset-gpios = <&gpio 25 0>;
2964 +                               dc-gpios = <&gpio 24 0>;
2965 +                               led-gpios = <&gpio 22 1>;
2966 +                               debug = <0>;
2967 +
2968 +                               init = <0x10000b0 0x00
2969 +                                       0x1000011
2970 +                                       0x20000ff
2971 +                                       0x100003a 0x55
2972 +                                       0x1000036 0x28
2973 +                                       0x10000c2 0x44
2974 +                                       0x10000c5 0x00 0x00 0x00 0x00
2975 +                                       0x10000e0 0x0f 0x1f 0x1c 0x0c 0x0f 0x08 0x48 0x98 0x37 0x0a 0x13 0x04 0x11 0x0d 0x00
2976 +                                       0x10000e1 0x0f 0x32 0x2e 0x0b 0x0d 0x05 0x47 0x75 0x37 0x06 0x10 0x03 0x24 0x20 0x00
2977 +                                       0x10000e2 0x0f 0x32 0x2e 0x0b 0x0d 0x05 0x47 0x75 0x37 0x06 0x10 0x03 0x24 0x20 0x00
2978 +                                       0x1000011
2979 +                                       0x1000029>;
2980 +                       };
2981 +
2982 +                       piscreen_ts: piscreen-ts@1 {
2983 +                               compatible = "ti,ads7846";
2984 +                               reg = <1>;
2985 +
2986 +                               spi-max-frequency = <2000000>;
2987 +                               interrupts = <17 2>; /* high-to-low edge triggered */
2988 +                               interrupt-parent = <&gpio>;
2989 +                               pendown-gpio = <&gpio 17 0>;
2990 +                               ti,swap-xy;
2991 +                               ti,x-plate-ohms = /bits/ 16 <100>;
2992 +                               ti,pressure-max = /bits/ 16 <255>;
2993 +                       };
2994 +               };
2995 +       };
2996 +       __overrides__ {
2997 +               speed =         <&piscreen>,"spi-max-frequency:0";
2998 +               rotate =        <&piscreen>,"rotate:0";
2999 +               fps =           <&piscreen>,"fps:0";
3000 +               debug =         <&piscreen>,"debug:0";
3001 +               xohms =         <&piscreen_ts>,"ti,x-plate-ohms;0";
3002 +       };
3003 +};
3004 --- /dev/null
3005 +++ b/arch/arm/boot/dts/overlays/pitft28-resistive-overlay.dts
3006 @@ -0,0 +1,115 @@
3007 +/*
3008 + * Device Tree overlay for Adafruit PiTFT 2.8" resistive touch screen
3009 + *
3010 + */
3011 +
3012 +/dts-v1/;
3013 +/plugin/;
3014 +
3015 +/ {
3016 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
3017 +
3018 +       fragment@0 {
3019 +               target = <&spi0>;
3020 +               __overlay__ {
3021 +                       status = "okay";
3022 +
3023 +                       spidev@0{
3024 +                               status = "disabled";
3025 +                       };
3026 +
3027 +                       spidev@1{
3028 +                               status = "disabled";
3029 +                       };
3030 +               };
3031 +       };
3032 +
3033 +       fragment@1 {
3034 +               target = <&gpio>;
3035 +               __overlay__ {
3036 +                       pitft_pins: pitft_pins {
3037 +                               brcm,pins = <24 25>;
3038 +                               brcm,function = <0 1>; /* in out */
3039 +                               brcm,pull = <2 0>; /* pullup none */
3040 +                       };
3041 +               };
3042 +       };
3043 +
3044 +       fragment@2 {
3045 +               target = <&spi0>;
3046 +               __overlay__ {
3047 +                       /* needed to avoid dtc warning */
3048 +                       #address-cells = <1>;
3049 +                       #size-cells = <0>;
3050 +
3051 +                       pitft: pitft@0{
3052 +                               compatible = "ilitek,ili9340";
3053 +                               reg = <0>;
3054 +                               pinctrl-names = "default";
3055 +                               pinctrl-0 = <&pitft_pins>;
3056 +
3057 +                               spi-max-frequency = <32000000>;
3058 +                               rotate = <90>;
3059 +                               fps = <25>;
3060 +                               bgr;
3061 +                               buswidth = <8>;
3062 +                               dc-gpios = <&gpio 25 0>;
3063 +                               debug = <0>;
3064 +                       };
3065 +
3066 +                       pitft_ts@1 {
3067 +                               #address-cells = <1>;
3068 +                               #size-cells = <0>;
3069 +                               compatible = "st,stmpe610";
3070 +                               reg = <1>;
3071 +
3072 +                               spi-max-frequency = <500000>;
3073 +                               irq-gpio = <&gpio 24 0x2>; /* IRQF_TRIGGER_FALLING */
3074 +                               interrupts = <24 2>; /* high-to-low edge triggered */
3075 +                               interrupt-parent = <&gpio>;
3076 +                               interrupt-controller;
3077 +
3078 +                               stmpe_touchscreen {
3079 +                                       compatible = "st,stmpe-ts";
3080 +                                       st,sample-time = <4>;
3081 +                                       st,mod-12b = <1>;
3082 +                                       st,ref-sel = <0>;
3083 +                                       st,adc-freq = <2>;
3084 +                                       st,ave-ctrl = <3>;
3085 +                                       st,touch-det-delay = <4>;
3086 +                                       st,settling = <2>;
3087 +                                       st,fraction-z = <7>;
3088 +                                       st,i-drive = <0>;
3089 +                               };
3090 +
3091 +                               stmpe_gpio: stmpe_gpio {
3092 +                                       #gpio-cells = <2>;
3093 +                                       compatible = "st,stmpe-gpio";
3094 +                                       /*
3095 +                                        * only GPIO2 is wired/available
3096 +                                        * and it is wired to the backlight
3097 +                                        */
3098 +                                       st,norequest-mask = <0x7b>;
3099 +                               };
3100 +                       };
3101 +               };
3102 +       };
3103 +
3104 +       fragment@3 {
3105 +               target-path = "/soc";
3106 +               __overlay__ {
3107 +                       backlight {
3108 +                               compatible = "gpio-backlight";
3109 +                               gpios = <&stmpe_gpio 2 0>;
3110 +                               default-on;
3111 +                       };
3112 +               };
3113 +       };
3114 +
3115 +       __overrides__ {
3116 +               speed =   <&pitft>,"spi-max-frequency:0";
3117 +               rotate =  <&pitft>,"rotate:0";
3118 +               fps =     <&pitft>,"fps:0";
3119 +               debug =   <&pitft>,"debug:0";
3120 +       };
3121 +};
3122 --- /dev/null
3123 +++ b/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts
3124 @@ -0,0 +1,34 @@
3125 +/dts-v1/;
3126 +/plugin/;
3127 +
3128 +/ {
3129 +       compatible = "brcm,bcm2708";
3130 +       fragment@0 {
3131 +               target-path = "/";
3132 +               __overlay__ {
3133 +                       pps: pps {
3134 +                               compatible = "pps-gpio";
3135 +                               pinctrl-names = "default";
3136 +                               pinctrl-0 = <&pps_pins>;
3137 +                               gpios = <&gpio 18 0>;
3138 +                               status = "okay";
3139 +                       };
3140 +               };
3141 +       };
3142 +
3143 +       fragment@1 {
3144 +               target = <&gpio>;
3145 +               __overlay__ {
3146 +                       pps_pins: pps_pins {
3147 +                               brcm,pins =     <18>;
3148 +                               brcm,function = <0>;    // in
3149 +                               brcm,pull =     <0>;    // off
3150 +                       };
3151 +               };
3152 +       };
3153 +
3154 +       __overrides__ {
3155 +               gpiopin = <&pps>,"gpios:4",
3156 +                         <&pps_pins>,"brcm,pins:0";
3157 +       };
3158 +};
3159 --- /dev/null
3160 +++ b/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts
3161 @@ -0,0 +1,34 @@
3162 +// Definitions for RPi DAC
3163 +/dts-v1/;
3164 +/plugin/;
3165 +
3166 +/ {
3167 +       compatible = "brcm,bcm2708";
3168 +
3169 +       fragment@0 {
3170 +               target = <&sound>;
3171 +               __overlay__ {
3172 +                       compatible = "rpi,rpi-dac";
3173 +                       i2s-controller = <&i2s>;
3174 +                       status = "okay";
3175 +               };
3176 +       };
3177 +
3178 +       fragment@1 {
3179 +               target = <&i2s>;
3180 +               __overlay__ {
3181 +                       status = "okay";
3182 +               };
3183 +       };
3184 +
3185 +       fragment@2 {
3186 +               target-path = "/";
3187 +               __overlay__ {
3188 +                       pcm1794a-codec {
3189 +                               #sound-dai-cells = <0>;
3190 +                               compatible = "ti,pcm1794a";
3191 +                               status = "okay";
3192 +                       };
3193 +               };
3194 +       };
3195 +};
3196 --- /dev/null
3197 +++ b/arch/arm/boot/dts/overlays/rpi-display-overlay.dts
3198 @@ -0,0 +1,82 @@
3199 +/*
3200 + * Device Tree overlay for rpi-display by Watterott
3201 + *
3202 + */
3203 +
3204 +/dts-v1/;
3205 +/plugin/;
3206 +
3207 +/ {
3208 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
3209 +
3210 +       fragment@0 {
3211 +               target = <&spi0>;
3212 +               __overlay__ {
3213 +                       status = "okay";
3214 +
3215 +                       spidev@0{
3216 +                               status = "disabled";
3217 +                       };
3218 +
3219 +                       spidev@1{
3220 +                               status = "disabled";
3221 +                       };
3222 +               };
3223 +       };
3224 +
3225 +       fragment@1 {
3226 +               target = <&gpio>;
3227 +               __overlay__ {
3228 +                       rpi_display_pins: rpi_display_pins {
3229 +                               brcm,pins = <18 23 24 25>;
3230 +                               brcm,function = <1 1 1 0>; /* out out out in */
3231 +                               brcm,pull = <0 0 0 2>; /* - - - up */
3232 +                       };
3233 +               };
3234 +       };
3235 +
3236 +       fragment@2 {
3237 +               target = <&spi0>;
3238 +               __overlay__ {
3239 +                       /* needed to avoid dtc warning */
3240 +                       #address-cells = <1>;
3241 +                       #size-cells = <0>;
3242 +
3243 +                       rpidisplay: rpi-display@0{
3244 +                               compatible = "ilitek,ili9341";
3245 +                               reg = <0>;
3246 +                               pinctrl-names = "default";
3247 +                               pinctrl-0 = <&rpi_display_pins>;
3248 +
3249 +                               spi-max-frequency = <32000000>;
3250 +                               rotate = <270>;
3251 +                               bgr;
3252 +                               fps = <30>;
3253 +                               buswidth = <8>;
3254 +                               reset-gpios = <&gpio 23 0>;
3255 +                               dc-gpios = <&gpio 24 0>;
3256 +                               led-gpios = <&gpio 18 1>;
3257 +                               debug = <0>;
3258 +                       };
3259 +
3260 +                       rpidisplay_ts: rpi-display-ts@1 {
3261 +                               compatible = "ti,ads7846";
3262 +                               reg = <1>;
3263 +
3264 +                               spi-max-frequency = <2000000>;
3265 +                               interrupts = <25 2>; /* high-to-low edge triggered */
3266 +                               interrupt-parent = <&gpio>;
3267 +                               pendown-gpio = <&gpio 25 0>;
3268 +                               ti,x-plate-ohms = /bits/ 16 <60>;
3269 +                               ti,pressure-max = /bits/ 16 <255>;
3270 +                       };
3271 +               };
3272 +       };
3273 +       __overrides__ {
3274 +               speed =   <&rpidisplay>,"spi-max-frequency:0";
3275 +               rotate =  <&rpidisplay>,"rotate:0";
3276 +               fps =     <&rpidisplay>,"fps:0";
3277 +               debug =   <&rpidisplay>,"debug:0";
3278 +               xohms =   <&rpidisplay_ts>,"ti,x-plate-ohms;0";
3279 +       };
3280 +};
3281 --- /dev/null
3282 +++ b/arch/arm/boot/dts/overlays/rpi-proto-overlay.dts
3283 @@ -0,0 +1,39 @@
3284 +// Definitions for Rpi-Proto
3285 +/dts-v1/;
3286 +/plugin/;
3287 +
3288 +/ {
3289 +       compatible = "brcm,bcm2708";
3290 +
3291 +       fragment@0 {
3292 +               target = <&sound>;
3293 +               __overlay__ {
3294 +                       compatible = "rpi,rpi-proto";
3295 +                       i2s-controller = <&i2s>;
3296 +                       status = "okay";
3297 +               };
3298 +       };
3299 +
3300 +       fragment@1 {
3301 +               target = <&i2s>;
3302 +               __overlay__ {
3303 +                       status = "okay";
3304 +               };
3305 +       };
3306 +
3307 +       fragment@2 {
3308 +               target = <&i2c1>;
3309 +               __overlay__ {
3310 +                       #address-cells = <1>;
3311 +                       #size-cells = <0>;
3312 +                       status = "okay";
3313 +
3314 +                       wm8731@1a {
3315 +                               #sound-dai-cells = <0>;
3316 +                               compatible = "wlf,wm8731";
3317 +                               reg = <0x1a>;
3318 +                               status = "okay";
3319 +                       };
3320 +               };
3321 +       };
3322 +};
3323 --- /dev/null
3324 +++ b/arch/arm/boot/dts/overlays/sdhost-overlay.dts
3325 @@ -0,0 +1,78 @@
3326 +/dts-v1/;
3327 +/plugin/;
3328 +
3329 +/{
3330 +       compatible = "brcm,bcm2708";
3331 +
3332 +       fragment@0 {
3333 +               target = <&soc>;
3334 +               __overlay__ {
3335 +                       #address-cells = <1>;
3336 +                       #size-cells = <1>;
3337 +
3338 +                       sdhost: sdhost@7e202000 {
3339 +                               compatible = "brcm,bcm2835-sdhost";
3340 +                               reg = <0x7e202000 0x100>;
3341 +                               pinctrl-names = "default";
3342 +                               pinctrl-0 = <&sdhost_pins>;
3343 +                               interrupts = <2 24>;
3344 +                               clocks = <&clk_sdhost>;
3345 +                               dmas = <&dma 13>,
3346 +                                      <&dma 13>;
3347 +                               dma-names = "tx", "rx";
3348 +                               brcm,delay-after-stop = <0>;
3349 +                               brcm,overclock-50 = <0>;
3350 +                               status = "okay";
3351 +                       };
3352 +               };
3353 +       };
3354 +
3355 +       fragment@1 {
3356 +               target = <&clocks>;
3357 +               __overlay__ {
3358 +                       #address-cells = <1>;
3359 +                       #size-cells = <0>;
3360 +
3361 +                       clk_sdhost: sdhost {
3362 +                               compatible = "fixed-clock";
3363 +                               reg = <0>;
3364 +                               #clock-cells = <0>;
3365 +                               clock-output-names = "sdhost";
3366 +                               clock-frequency = <250000000>;
3367 +                       };
3368 +               };
3369 +       };
3370 +
3371 +       fragment@2 {
3372 +               target = <&gpio>;
3373 +               __overlay__ {
3374 +                       sdhost_pins: sdhost_pins {
3375 +                               brcm,pins = <48 49 50 51 52 53>;
3376 +                               brcm,function = <4>; /* alt0 */
3377 +                       };
3378 +               };
3379 +       };
3380 +
3381 +       fragment@3 {
3382 +               target = <&mmc>;
3383 +               __overlay__ {
3384 +                       /* Find a way to disable the other driver */
3385 +                       compatible = "";
3386 +                       status = "disabled";
3387 +               };
3388 +       };
3389 +
3390 +       fragment@4 {
3391 +               target-path = "/__overrides__";
3392 +               __overlay__ {
3393 +                       sdhost_freq      = <&clk_sdhost>,"clock-frequency:0";
3394 +               };
3395 +       };
3396 +
3397 +       __overrides__ {
3398 +               delay_after_stop = <&sdhost>,"brcm,delay-after-stop:0";
3399 +               overclock_50     = <&sdhost>,"brcm,overclock-50:0";
3400 +               force_pio        = <&sdhost>,"brcm,force-pio?";
3401 +               sdhost_freq      = <&clk_sdhost>,"clock-frequency:0";
3402 +       };
3403 +};
3404 --- /dev/null
3405 +++ b/arch/arm/boot/dts/overlays/spi-bcm2708-overlay.dts
3406 @@ -0,0 +1,18 @@
3407 +/*
3408 + * Device tree overlay for spi-bcm2835
3409 + */
3410 +
3411 +/dts-v1/;
3412 +/plugin/;
3413 +
3414 +/ {
3415 +       compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709";
3416 +       /* setting up compatiblity to allow loading the spi-bcm2835 driver */
3417 +       fragment@0 {
3418 +               target = <&spi0>;
3419 +               __overlay__ {
3420 +                       status = "okay";
3421 +                       compatible = "brcm,bcm2708-spi";
3422 +               };
3423 +       };
3424 +};
3425 --- /dev/null
3426 +++ b/arch/arm/boot/dts/overlays/spi-bcm2835-overlay.dts
3427 @@ -0,0 +1,18 @@
3428 +/*
3429 + * Device tree overlay for spi-bcm2835
3430 + */
3431 +
3432 +/dts-v1/;
3433 +/plugin/;
3434 +
3435 +/ {
3436 +       compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709";
3437 +       /* setting up compatiblity to allow loading the spi-bcm2835 driver */
3438 +       fragment@0 {
3439 +               target = <&spi0>;
3440 +               __overlay__ {
3441 +                       status = "okay";
3442 +                       compatible = "brcm,bcm2835-spi";
3443 +               };
3444 +       };
3445 +};
3446 --- /dev/null
3447 +++ b/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts
3448 @@ -0,0 +1,216 @@
3449 +/*
3450 + * tinylcd35-overlay.dts
3451 + *
3452 + * -------------------------------------------------
3453 + * www.tinlylcd.com
3454 + * -------------------------------------------------
3455 + * Device---Driver-----BUS       GPIO's
3456 + * display  tinylcd35  spi0.0    25 24 18
3457 + * touch    ads7846    spi0.1    5
3458 + * rtc      ds1307     i2c1-0068
3459 + * rtc      pcf8563    i2c1-0051
3460 + * keypad   gpio-keys  --------- 17 22 27 23 28
3461 + *
3462 + *
3463 + * TinyLCD.com 3.5 inch TFT
3464 + *
3465 + *  Version 001
3466 + *  5/3/2015  -- Noralf Trønnes     Initial Device tree framework
3467 + *  10/3/2015 -- tinylcd@gmail.com  added ds1307 support.
3468 + *
3469 + */
3470 +
3471 +/dts-v1/;
3472 +/plugin/;
3473 +
3474 +/ {
3475 +       compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
3476 +
3477 +       fragment@0 {
3478 +               target = <&spi0>;
3479 +               __overlay__ {
3480 +                       status = "okay";
3481 +
3482 +                       spidev@0{
3483 +                               status = "disabled";
3484 +                       };
3485 +
3486 +                       spidev@1{
3487 +                               status = "disabled";
3488 +                       };
3489 +               };
3490 +       };
3491 +
3492 +       fragment@1 {
3493 +               target = <&gpio>;
3494 +               __overlay__ {
3495 +                       tinylcd35_pins: tinylcd35_pins {
3496 +                               brcm,pins = <25 24 18>;
3497 +                               brcm,function = <1>; /* out */
3498 +                       };
3499 +                       tinylcd35_ts_pins: tinylcd35_ts_pins {
3500 +                               brcm,pins = <5>;
3501 +                               brcm,function = <0>; /* in */
3502 +                       };
3503 +                       keypad_pins: keypad_pins {
3504 +                               brcm,pins = <4 17 22 23 27>;
3505 +                               brcm,function = <0>; /* in */
3506 +                               brcm,pull = <1>; /* down */
3507 +                       };
3508 +               };
3509 +       };
3510 +
3511 +       fragment@2 {
3512 +               target = <&spi0>;
3513 +               __overlay__ {
3514 +                       /* needed to avoid dtc warning */
3515 +                       #address-cells = <1>;
3516 +                       #size-cells = <0>;
3517 +
3518 +                       tinylcd35: tinylcd35@0{
3519 +                               compatible = "neosec,tinylcd";
3520 +                               reg = <0>;
3521 +                               pinctrl-names = "default";
3522 +                               pinctrl-0 = <&tinylcd35_pins>,
3523 +                                           <&tinylcd35_ts_pins>;
3524 +
3525 +                               spi-max-frequency = <48000000>;
3526 +                               rotate = <270>;
3527 +                               fps = <20>;
3528 +                               bgr;
3529 +                               buswidth = <8>;
3530 +                               reset-gpios = <&gpio 25 0>;
3531 +                               dc-gpios = <&gpio 24 0>;
3532 +                               led-gpios = <&gpio 18 1>;
3533 +                               debug = <0>;
3534 +
3535 +                               init = <0x10000B0 0x80
3536 +                                       0x10000C0 0x0A 0x0A
3537 +                                       0x10000C1 0x01 0x01
3538 +                                       0x10000C2 0x33
3539 +                                       0x10000C5 0x00 0x42 0x80
3540 +                                       0x10000B1 0xD0 0x11
3541 +                                       0x10000B4 0x02
3542 +                                       0x10000B6 0x00 0x22 0x3B
3543 +                                       0x10000B7 0x07
3544 +                                       0x1000036 0x58
3545 +                                       0x10000F0 0x36 0xA5 0xD3
3546 +                                       0x10000E5 0x80
3547 +                                       0x10000E5 0x01
3548 +                                       0x10000B3 0x00
3549 +                                       0x10000E5 0x00
3550 +                                       0x10000F0 0x36 0xA5 0x53
3551 +                                       0x10000E0 0x00 0x35 0x33 0x00 0x00 0x00 0x00 0x35 0x33 0x00 0x00 0x00
3552 +                                       0x100003A 0x55
3553 +                                       0x1000011
3554 +                                       0x2000001
3555 +                                       0x1000029>;
3556 +                       };
3557 +
3558 +                       tinylcd35_ts: tinylcd35_ts@1 {
3559 +                               compatible = "ti,ads7846";
3560 +                               reg = <1>;
3561 +                               status = "disabled";
3562 +
3563 +                               spi-max-frequency = <2000000>;
3564 +                               interrupts = <5 2>; /* high-to-low edge triggered */
3565 +                               interrupt-parent = <&gpio>;
3566 +                               pendown-gpio = <&gpio 5 0>;
3567 +                               ti,x-plate-ohms = /bits/ 16 <100>;
3568 +                               ti,pressure-max = /bits/ 16 <255>;
3569 +                       };
3570 +               };
3571 +       };
3572 +
3573 +       /*  RTC    */
3574 +
3575 +       fragment@3 {
3576 +               target = <&i2c1>;
3577 +               __overlay__ {
3578 +                       #address-cells = <1>;
3579 +                       #size-cells = <0>;
3580 +
3581 +                       pcf8563: pcf8563@51 {
3582 +                               compatible = "nxp,pcf8563";
3583 +                               reg = <0x51>;
3584 +                               status = "disabled";
3585 +                       };
3586 +               };
3587 +       };
3588 +
3589 +       fragment@4 {
3590 +               target = <&i2c1>;
3591 +               __overlay__ {
3592 +                       #address-cells = <1>;
3593 +                       #size-cells = <0>;
3594 +
3595 +                       ds1307: ds1307@68 {
3596 +                               compatible = "maxim,ds1307";
3597 +                               reg = <0x68>;
3598 +                               status = "disabled";
3599 +                       };
3600 +               };
3601 +       };
3602 +
3603 +       /*
3604 +        * Values for input event code is found under the
3605 +        * 'Keys and buttons' heading in include/uapi/linux/input.h
3606 +        */
3607 +       fragment@5 {
3608 +               target-path = "/soc";
3609 +               __overlay__ {
3610 +                       keypad: keypad {
3611 +                               compatible = "gpio-keys";
3612 +                               #address-cells = <1>;
3613 +                               #size-cells = <0>;
3614 +                               pinctrl-names = "default";
3615 +                               pinctrl-0 = <&keypad_pins>;
3616 +                               status = "disabled";
3617 +                               autorepeat;
3618 +
3619 +                               button@17 {
3620 +                                       label = "GPIO KEY_UP";
3621 +                                       linux,code = <103>;
3622 +                                       gpios = <&gpio 17 0>;
3623 +                               };
3624 +                               button@22 {
3625 +                                       label = "GPIO KEY_DOWN";
3626 +                                       linux,code = <108>;
3627 +                                       gpios = <&gpio 22 0>;
3628 +                               };
3629 +                               button@27 {
3630 +                                       label = "GPIO KEY_LEFT";
3631 +                                       linux,code = <105>;
3632 +                                       gpios = <&gpio 27 0>;
3633 +                               };
3634 +                               button@23 {
3635 +                                       label = "GPIO KEY_RIGHT";
3636 +                                       linux,code = <106>;
3637 +                                       gpios = <&gpio 23 0>;
3638 +                               };
3639 +                               button@4 {
3640 +                                       label = "GPIO KEY_ENTER";
3641 +                                       linux,code = <28>;
3642 +                                       gpios = <&gpio 4 0>;
3643 +                               };
3644 +                       };
3645 +               };
3646 +       };
3647 +
3648 +       __overrides__ {
3649 +               speed =      <&tinylcd35>,"spi-max-frequency:0";
3650 +               rotate =     <&tinylcd35>,"rotate:0";
3651 +               fps =        <&tinylcd35>,"fps:0";
3652 +               debug =      <&tinylcd35>,"debug:0";
3653 +               touch =      <&tinylcd35_ts>,"status";
3654 +               touchgpio =  <&tinylcd35_ts_pins>,"brcm,pins:0",
3655 +                            <&tinylcd35_ts>,"interrupts:0",
3656 +                            <&tinylcd35_ts>,"pendown-gpio:4";
3657 +               xohms =      <&tinylcd35_ts>,"ti,x-plate-ohms;0";
3658 +               rtc-pcf =    <&i2c1>,"status",
3659 +                            <&pcf8563>,"status";
3660 +               rtc-ds =     <&i2c1>,"status",
3661 +                            <&ds1307>,"status";
3662 +               keypad =     <&keypad>,"status";
3663 +       };
3664 +};
3665 --- /dev/null
3666 +++ b/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts
3667 @@ -0,0 +1,39 @@
3668 +// Definitions for w1-gpio module (without external pullup)
3669 +/dts-v1/;
3670 +/plugin/;
3671 +
3672 +/ {
3673 +       compatible = "brcm,bcm2708";
3674 +
3675 +       fragment@0 {
3676 +               target-path = "/";
3677 +               __overlay__ {
3678 +
3679 +                       w1: onewire@0 {
3680 +                               compatible = "w1-gpio";
3681 +                               pinctrl-names = "default";
3682 +                               pinctrl-0 = <&w1_pins>;
3683 +                               gpios = <&gpio 4 0>;
3684 +                               rpi,parasitic-power = <0>;
3685 +                               status = "okay";
3686 +                       };
3687 +               };
3688 +       };
3689 +
3690 +       fragment@1 {
3691 +               target = <&gpio>;
3692 +               __overlay__ {
3693 +                       w1_pins: w1_pins {
3694 +                               brcm,pins = <4>;
3695 +                               brcm,function = <0>; // in (initially)
3696 +                               brcm,pull = <0>; // off
3697 +                       };
3698 +               };
3699 +       };
3700 +
3701 +       __overrides__ {
3702 +               gpiopin =       <&w1>,"gpios:4",
3703 +                               <&w1_pins>,"brcm,pins:0";
3704 +               pullup =        <&w1>,"rpi,parasitic-power:0";
3705 +       };
3706 +};
3707 --- /dev/null
3708 +++ b/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts
3709 @@ -0,0 +1,41 @@
3710 +// Definitions for w1-gpio module (with external pullup)
3711 +/dts-v1/;
3712 +/plugin/;
3713 +
3714 +/ {
3715 +       compatible = "brcm,bcm2708";
3716 +
3717 +       fragment@0 {
3718 +               target-path = "/";
3719 +               __overlay__ {
3720 +
3721 +                       w1: onewire@0 {
3722 +                               compatible = "w1-gpio";
3723 +                               pinctrl-names = "default";
3724 +                               pinctrl-0 = <&w1_pins>;
3725 +                               gpios = <&gpio 4 0>, <&gpio 5 1>;
3726 +                               rpi,parasitic-power = <0>;
3727 +                               status = "okay";
3728 +                       };
3729 +               };
3730 +       };
3731 +
3732 +       fragment@1 {
3733 +               target = <&gpio>;
3734 +               __overlay__ {
3735 +                       w1_pins: w1_pins {
3736 +                               brcm,pins = <4 5>;
3737 +                               brcm,function = <0 1>; // in out
3738 +                               brcm,pull = <0 0>; // off off
3739 +                       };
3740 +               };
3741 +       };
3742 +
3743 +       __overrides__ {
3744 +               gpiopin =       <&w1>,"gpios:4",
3745 +                               <&w1_pins>,"brcm,pins:0";
3746 +               extpullup =     <&w1>,"gpios:16",
3747 +                               <&w1_pins>,"brcm,pins:4";
3748 +               pullup =        <&w1>,"rpi,parasitic-power:0";
3749 +       };
3750 +};