target/linux/ar71xx/files/arch/mips/ath79/mach-ap83.c

   1 /*
   2  *  Atheros AP83 board support
   3  *
   4  *  Copyright (C) 2008-2012 Gabor Juhos <juhosg@openwrt.org>
   5  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify it
   8  *  under the terms of the GNU General Public License version 2 as published
   9  *  by the Free Software Foundation.
  10  */
  11
  12 #include <linux/delay.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/mtd/mtd.h>
  15 #include <linux/mtd/partitions.h>
  16 #include <linux/mtd/physmap.h>
  17 #include <linux/spi/spi.h>
  18 #include <linux/spi/spi_gpio.h>
  19 #include <linux/spi/vsc7385.h>
  20
  21 #include <asm/mach-ath79/ar71xx_regs.h>
  22 #include <asm/mach-ath79/ath79.h>
  23
  24 #include "dev-eth.h"
  25 #include "dev-gpio-buttons.h"
  26 #include "dev-leds-gpio.h"
  27 #include "dev-usb.h"
  28 #include "dev-wmac.h"
  29 #include "machtypes.h"
  30
  31 #define AP83_GPIO_LED_WLAN      6
  32 #define AP83_GPIO_LED_POWER     14
  33 #define AP83_GPIO_LED_JUMPSTART 15
  34 #define AP83_GPIO_BTN_JUMPSTART 12
  35 #define AP83_GPIO_BTN_RESET     21
  36
  37 #define AP83_050_GPIO_VSC7385_CS        1
  38 #define AP83_050_GPIO_VSC7385_MISO      3
  39 #define AP83_050_GPIO_VSC7385_MOSI      16
  40 #define AP83_050_GPIO_VSC7385_SCK       17
  41
  42 #define AP83_KEYS_POLL_INTERVAL         20      /* msecs */
  43 #define AP83_KEYS_DEBOUNCE_INTERVAL     (3 * AP83_KEYS_POLL_INTERVAL)
  44
  45 static struct mtd_partition ap83_flash_partitions[] = {
  46         {
  47                 .name           = "u-boot",
  48                 .offset         = 0,
  49                 .size           = 0x040000,
  50                 .mask_flags     = MTD_WRITEABLE,
  51         }, {
  52                 .name           = "u-boot-env",
  53                 .offset         = 0x040000,
  54                 .size           = 0x020000,
  55                 .mask_flags     = MTD_WRITEABLE,
  56         }, {
  57                 .name           = "kernel",
  58                 .offset         = 0x060000,
  59                 .size           = 0x140000,
  60         }, {
  61                 .name           = "rootfs",
  62                 .offset         = 0x1a0000,
  63                 .size           = 0x650000,
  64         }, {
  65                 .name           = "art",
  66                 .offset         = 0x7f0000,
  67                 .size           = 0x010000,
  68                 .mask_flags     = MTD_WRITEABLE,
  69         }, {
  70                 .name           = "firmware",
  71                 .offset         = 0x060000,
  72                 .size           = 0x790000,
  73         }
  74 };
  75
  76 static struct physmap_flash_data ap83_flash_data = {
  77         .width          = 2,
  78         .parts          = ap83_flash_partitions,
  79         .nr_parts       = ARRAY_SIZE(ap83_flash_partitions),
  80 };
  81
  82 static struct resource ap83_flash_resources[] = {
  83         [0] = {
  84                 .start  = AR71XX_SPI_BASE,
  85                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
  86                 .flags  = IORESOURCE_MEM,
  87         },
  88 };
  89
  90 static struct platform_device ap83_flash_device = {
  91         .name           = "ar91xx-flash",
  92         .id             = -1,
  93         .resource       = ap83_flash_resources,
  94         .num_resources  = ARRAY_SIZE(ap83_flash_resources),
  95         .dev            = {
  96                 .platform_data = &ap83_flash_data,
  97         }
  98 };
  99
 100 static struct gpio_led ap83_leds_gpio[] __initdata = {
 101         {
 102                 .name           = "ap83:green:jumpstart",
 103                 .gpio           = AP83_GPIO_LED_JUMPSTART,
 104                 .active_low     = 0,
 105         }, {
 106                 .name           = "ap83:green:power",
 107                 .gpio           = AP83_GPIO_LED_POWER,
 108                 .active_low     = 0,
 109         }, {
 110                 .name           = "ap83:green:wlan",
 111                 .gpio           = AP83_GPIO_LED_WLAN,
 112                 .active_low     = 0,
 113         },
 114 };
 115
 116 static struct gpio_keys_button ap83_gpio_keys[] __initdata = {
 117         {
 118                 .desc           = "soft_reset",
 119                 .type           = EV_KEY,
 120                 .code           = KEY_RESTART,
 121                 .debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
 122                 .gpio           = AP83_GPIO_BTN_RESET,
 123                 .active_low     = 1,
 124         }, {
 125                 .desc           = "jumpstart",
 126                 .type           = EV_KEY,
 127                 .code           = KEY_WPS_BUTTON,
 128                 .debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
 129                 .gpio           = AP83_GPIO_BTN_JUMPSTART,
 130                 .active_low     = 1,
 131         }
 132 };
 133
 134 static struct resource ap83_040_spi_resources[] = {
 135         [0] = {
 136                 .start  = AR71XX_SPI_BASE,
 137                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 138                 .flags  = IORESOURCE_MEM,
 139         },
 140 };
 141
 142 static struct platform_device ap83_040_spi_device = {
 143         .name           = "ap83-spi",
 144         .id             = 0,
 145         .resource       = ap83_040_spi_resources,
 146         .num_resources  = ARRAY_SIZE(ap83_040_spi_resources),
 147 };
 148
 149 static struct spi_gpio_platform_data ap83_050_spi_data = {
 150         .miso   = AP83_050_GPIO_VSC7385_MISO,
 151         .mosi   = AP83_050_GPIO_VSC7385_MOSI,
 152         .sck    = AP83_050_GPIO_VSC7385_SCK,
 153         .num_chipselect = 1,
 154 };
 155
 156 static struct platform_device ap83_050_spi_device = {
 157         .name           = "spi_gpio",
 158         .id             = 0,
 159         .dev            = {
 160                 .platform_data = &ap83_050_spi_data,
 161         }
 162 };
 163
 164 static void ap83_vsc7385_reset(void)
 165 {
 166         ath79_device_reset_set(AR71XX_RESET_GE1_PHY);
 167         udelay(10);
 168         ath79_device_reset_clear(AR71XX_RESET_GE1_PHY);
 169         mdelay(50);
 170 }
 171
 172 static struct vsc7385_platform_data ap83_vsc7385_data = {
 173         .reset          = ap83_vsc7385_reset,
 174         .ucode_name     = "vsc7385_ucode_ap83.bin",
 175         .mac_cfg = {
 176                 .tx_ipg         = 6,
 177                 .bit2           = 0,
 178                 .clk_sel        = 3,
 179         },
 180 };
 181
 182 static struct spi_board_info ap83_spi_info[] = {
 183         {
 184                 .bus_num        = 0,
 185                 .chip_select    = 0,
 186                 .max_speed_hz   = 25000000,
 187                 .modalias       = "spi-vsc7385",
 188                 .platform_data  = &ap83_vsc7385_data,
 189                 .controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
 190         }
 191 };
 192
 193 static void __init ap83_generic_setup(void)
 194 {
 195         u8 *eeprom = (u8 *) KSEG1ADDR(0x1fff1000);
 196
 197         ath79_register_mdio(0, 0xfffffffe);
 198
 199         ath79_init_mac(ath79_eth0_data.mac_addr, eeprom, 0);
 200         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 201         ath79_eth0_data.phy_mask = 0x1;
 202
 203         ath79_register_eth(0);
 204
 205         ath79_init_mac(ath79_eth1_data.mac_addr, eeprom, 1);
 206         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 207         ath79_eth1_data.speed = SPEED_1000;
 208         ath79_eth1_data.duplex = DUPLEX_FULL;
 209
 210         ath79_eth1_pll_data.pll_1000 = 0x1f000000;
 211
 212         ath79_register_eth(1);
 213
 214         ath79_register_leds_gpio(-1, ARRAY_SIZE(ap83_leds_gpio),
 215                                         ap83_leds_gpio);
 216
 217         ath79_register_gpio_keys_polled(-1, AP83_KEYS_POLL_INTERVAL,
 218                                          ARRAY_SIZE(ap83_gpio_keys),
 219                                          ap83_gpio_keys);
 220
 221         ath79_register_usb();
 222
 223         ath79_register_wmac(eeprom, NULL);
 224
 225         platform_device_register(&ap83_flash_device);
 226
 227         spi_register_board_info(ap83_spi_info, ARRAY_SIZE(ap83_spi_info));
 228 }
 229
 230 static void ap83_040_flash_lock(struct platform_device *pdev)
 231 {
 232         ath79_flash_acquire();
 233 }
 234
 235 static void ap83_040_flash_unlock(struct platform_device *pdev)
 236 {
 237         ath79_flash_release();
 238 }
 239
 240 static void __init ap83_040_setup(void)
 241 {
 242         ap83_flash_data.lock = ap83_040_flash_lock;
 243         ap83_flash_data.unlock = ap83_040_flash_unlock;
 244         ap83_generic_setup();
 245         platform_device_register(&ap83_040_spi_device);
 246 }
 247
 248 static void __init ap83_050_setup(void)
 249 {
 250         ap83_generic_setup();
 251         platform_device_register(&ap83_050_spi_device);
 252 }
 253
 254 static void __init ap83_setup(void)
 255 {
 256         u8 *board_id = (u8 *) KSEG1ADDR(0x1fff1244);
 257         unsigned int board_version;
 258
 259         board_version = (unsigned int)(board_id[0] - '0');
 260         board_version += ((unsigned int)(board_id[1] - '0')) * 10;
 261
 262         switch (board_version) {
 263         case 40:
 264                 ap83_040_setup();
 265                 break;
 266         case 50:
 267                 ap83_050_setup();
 268                 break;
 269         default:
 270                 printk(KERN_WARNING "AP83-%03u board is not yet supported\n",
 271                        board_version);
 272         }
 273 }
 274
 275 MIPS_MACHINE(ATH79_MACH_AP83, "AP83", "Atheros AP83", ap83_setup);