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

   1 /*
   2  *  Atheros AP83 board support
   3  *
   4  *  Copyright (C) 2008-2009 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/spi/spi.h>
  17 #include <linux/spi/spi_gpio.h>
  18 #include <linux/spi/vsc7385.h>
  19
  20 #include <asm/mach-ar71xx/ar71xx.h>
  21 #include <asm/mach-ar71xx/ar91xx_flash.h>
  22
  23 #include "machtype.h"
  24 #include "devices.h"
  25 #include "dev-ar913x-wmac.h"
  26 #include "dev-gpio-buttons.h"
  27 #include "dev-leds-gpio.h"
  28 #include "dev-usb.h"
  29
  30 #define AP83_GPIO_LED_WLAN      6
  31 #define AP83_GPIO_LED_POWER     14
  32 #define AP83_GPIO_LED_JUMPSTART 15
  33 #define AP83_GPIO_BTN_JUMPSTART 12
  34 #define AP83_GPIO_BTN_RESET     21
  35
  36 #define AP83_050_GPIO_VSC7385_CS        1
  37 #define AP83_050_GPIO_VSC7385_MISO      3
  38 #define AP83_050_GPIO_VSC7385_MOSI      16
  39 #define AP83_050_GPIO_VSC7385_SCK       17
  40
  41 #define AP83_BUTTONS_POLL_INTERVAL      20
  42
  43 #ifdef CONFIG_MTD_PARTITIONS
  44 static struct mtd_partition ap83_flash_partitions[] = {
  45         {
  46                 .name           = "u-boot",
  47                 .offset         = 0,
  48                 .size           = 0x040000,
  49                 .mask_flags     = MTD_WRITEABLE,
  50         } , {
  51                 .name           = "u-boot-env",
  52                 .offset         = 0x040000,
  53                 .size           = 0x020000,
  54                 .mask_flags     = MTD_WRITEABLE,
  55         } , {
  56                 .name           = "kernel",
  57                 .offset         = 0x060000,
  58                 .size           = 0x140000,
  59         } , {
  60                 .name           = "rootfs",
  61                 .offset         = 0x1a0000,
  62                 .size           = 0x650000,
  63         } , {
  64                 .name           = "art",
  65                 .offset         = 0x7f0000,
  66                 .size           = 0x010000,
  67                 .mask_flags     = MTD_WRITEABLE,
  68         } , {
  69                 .name           = "firmware",
  70                 .offset         = 0x060000,
  71                 .size           = 0x790000,
  72         }
  73 };
  74 #endif /* CONFIG_MTD_PARTITIONS */
  75
  76 static struct ar91xx_flash_platform_data ap83_flash_data = {
  77         .width          = 2,
  78 #ifdef CONFIG_MTD_PARTITIONS
  79         .parts          = ap83_flash_partitions,
  80         .nr_parts       = ARRAY_SIZE(ap83_flash_partitions),
  81 #endif
  82 };
  83
  84 static struct resource ap83_flash_resources[] = {
  85         [0] = {
  86                 .start  = AR71XX_SPI_BASE,
  87                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
  88                 .flags  = IORESOURCE_MEM,
  89         },
  90 };
  91
  92 static struct platform_device ap83_flash_device = {
  93         .name           = "ar91xx-flash",
  94         .id             = -1,
  95         .resource       = ap83_flash_resources,
  96         .num_resources  = ARRAY_SIZE(ap83_flash_resources),
  97         .dev            = {
  98                 .platform_data = &ap83_flash_data,
  99         }
 100 };
 101
 102 static struct gpio_led ap83_leds_gpio[] __initdata = {
 103         {
 104                 .name           = "ap83:green:jumpstart",
 105                 .gpio           = AP83_GPIO_LED_JUMPSTART,
 106                 .active_low     = 0,
 107         }, {
 108                 .name           = "ap83:green:power",
 109                 .gpio           = AP83_GPIO_LED_POWER,
 110                 .active_low     = 0,
 111         }, {
 112                 .name           = "ap83:green:wlan",
 113                 .gpio           = AP83_GPIO_LED_WLAN,
 114                 .active_low     = 0,
 115         },
 116 };
 117
 118 static struct gpio_button ap83_gpio_buttons[] __initdata = {
 119         {
 120                 .desc           = "soft_reset",
 121                 .type           = EV_KEY,
 122                 .code           = KEY_RESTART,
 123                 .threshold      = 3,
 124                 .gpio           = AP83_GPIO_BTN_RESET,
 125                 .active_low     = 1,
 126         } , {
 127                 .desc           = "jumpstart",
 128                 .type           = EV_KEY,
 129                 .code           = KEY_WPS_BUTTON,
 130                 .threshold      = 3,
 131                 .gpio           = AP83_GPIO_BTN_JUMPSTART,
 132                 .active_low     = 1,
 133         }
 134 };
 135
 136 static struct resource ap83_040_spi_resources[] = {
 137         [0] = {
 138                 .start  = AR71XX_SPI_BASE,
 139                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 140                 .flags  = IORESOURCE_MEM,
 141         },
 142 };
 143
 144 static struct platform_device ap83_040_spi_device = {
 145         .name           = "ap83-spi",
 146         .id             = 0,
 147         .resource       = ap83_040_spi_resources,
 148         .num_resources  = ARRAY_SIZE(ap83_040_spi_resources),
 149 };
 150
 151 static struct spi_gpio_platform_data ap83_050_spi_data = {
 152         .miso   = AP83_050_GPIO_VSC7385_MISO,
 153         .mosi   = AP83_050_GPIO_VSC7385_MOSI,
 154         .sck    = AP83_050_GPIO_VSC7385_SCK,
 155         .num_chipselect = 1,
 156 };
 157
 158 static struct platform_device ap83_050_spi_device = {
 159         .name           = "spi_gpio",
 160         .id             = 0,
 161         .dev            = {
 162                 .platform_data = &ap83_050_spi_data,
 163         }
 164 };
 165
 166 static void ap83_vsc7385_reset(void)
 167 {
 168         ar71xx_device_stop(RESET_MODULE_GE1_PHY);
 169         udelay(10);
 170         ar71xx_device_start(RESET_MODULE_GE1_PHY);
 171         mdelay(50);
 172 }
 173
 174 static struct vsc7385_platform_data ap83_vsc7385_data = {
 175         .reset          = ap83_vsc7385_reset,
 176         .ucode_name     = "vsc7385_ucode_ap83.bin",
 177         .mac_cfg = {
 178                 .tx_ipg         = 6,
 179                 .bit2           = 0,
 180                 .clk_sel        = 3,
 181         },
 182 };
 183
 184 static struct spi_board_info ap83_spi_info[] = {
 185         {
 186                 .bus_num        = 0,
 187                 .chip_select    = 0,
 188                 .max_speed_hz   = 25000000,
 189                 .modalias       = "spi-vsc7385",
 190                 .platform_data  = &ap83_vsc7385_data,
 191                 .controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
 192         }
 193 };
 194
 195 static void __init ap83_generic_setup(void)
 196 {
 197         u8 *eeprom = (u8 *) KSEG1ADDR(0x1fff1000);
 198
 199         ar71xx_set_mac_base(eeprom);
 200
 201         ar71xx_add_device_mdio(0xfffffffe);
 202
 203         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 204         ar71xx_eth0_data.phy_mask = 0x1;
 205
 206         ar71xx_add_device_eth(0);
 207
 208         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 209         ar71xx_eth1_data.speed = SPEED_1000;
 210         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 211
 212         ar71xx_eth1_pll_data.pll_1000 = 0x1f000000;
 213
 214         ar71xx_add_device_eth(1);
 215
 216         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ap83_leds_gpio),
 217                                         ap83_leds_gpio);
 218
 219         ar71xx_add_device_gpio_buttons(-1, AP83_BUTTONS_POLL_INTERVAL,
 220                                         ARRAY_SIZE(ap83_gpio_buttons),
 221                                         ap83_gpio_buttons);
 222
 223         ar71xx_add_device_usb();
 224
 225         ar913x_add_device_wmac(eeprom, NULL);
 226
 227         platform_device_register(&ap83_flash_device);
 228
 229         spi_register_board_info(ap83_spi_info, ARRAY_SIZE(ap83_spi_info));
 230 }
 231
 232 static void __init ap83_040_setup(void)
 233 {
 234         ap83_flash_data.is_shared=1;
 235         ap83_generic_setup();
 236         platform_device_register(&ap83_040_spi_device);
 237 }
 238
 239 static void __init ap83_050_setup(void)
 240 {
 241         ap83_generic_setup();
 242         platform_device_register(&ap83_050_spi_device);
 243 }
 244
 245 static void __init ap83_setup(void)
 246 {
 247         u8 *board_id = (u8 *) KSEG1ADDR(0x1fff1244);
 248         unsigned int board_version;
 249
 250         board_version = (unsigned int)(board_id[0] - '0');
 251         board_version += ((unsigned int)(board_id[1] - '0')) * 10;
 252
 253         switch (board_version) {
 254         case 40:
 255                 ap83_040_setup();
 256                 break;
 257         case 50:
 258                 ap83_050_setup();
 259                 break;
 260         default:
 261                 printk(KERN_WARNING "AP83-%03u board is not yet supported\n",
 262                        board_version);
 263         }
 264 }
 265
 266 MIPS_MACHINE(AR71XX_MACH_AP83, "AP83", "Atheros AP83", ap83_setup);