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/input.h>
  15 #include <linux/mtd/mtd.h>
  16 #include <linux/mtd/partitions.h>
  17 #include <linux/spi/spi.h>
  18 #include <linux/spi/spi_gpio.h>
  19 #include <linux/spi/vsc7385.h>
  20
  21 #include <asm/mips_machine.h>
  22 #include <asm/mach-ar71xx/ar71xx.h>
  23 #include <asm/mach-ar71xx/ar91xx_flash.h>
  24
  25 #include "devices.h"
  26 #include "dev-ar913x-wmac.h"
  27 #include "dev-leds-gpio.h"
  28
  29 #define AP83_GPIO_LED_WLAN      6
  30 #define AP83_GPIO_LED_POWER     14
  31 #define AP83_GPIO_LED_JUMPSTART 15
  32 #define AP83_GPIO_BTN_JUMPSTART 12
  33 #define AP83_GPIO_BTN_RESET     21
  34
  35 #define AP83_050_GPIO_VSC7385_CS        1
  36 #define AP83_050_GPIO_VSC7385_MISO      3
  37 #define AP83_050_GPIO_VSC7385_MOSI      16
  38 #define AP83_050_GPIO_VSC7385_SCK       17
  39
  40 #ifdef CONFIG_MTD_PARTITIONS
  41 static struct mtd_partition ap83_flash_partitions[] = {
  42         {
  43                 .name           = "u-boot",
  44                 .offset         = 0,
  45                 .size           = 0x040000,
  46                 .mask_flags     = MTD_WRITEABLE,
  47         } , {
  48                 .name           = "u-boot-env",
  49                 .offset         = 0x040000,
  50                 .size           = 0x020000,
  51                 .mask_flags     = MTD_WRITEABLE,
  52         } , {
  53                 .name           = "kernel",
  54                 .offset         = 0x060000,
  55                 .size           = 0x140000,
  56         } , {
  57                 .name           = "rootfs",
  58                 .offset         = 0x1a0000,
  59                 .size           = 0x650000,
  60         } , {
  61                 .name           = "art",
  62                 .offset         = 0x7f0000,
  63                 .size           = 0x010000,
  64                 .mask_flags     = MTD_WRITEABLE,
  65         } , {
  66                 .name           = "firmware",
  67                 .offset         = 0x060000,
  68                 .size           = 0x790000,
  69         }
  70 };
  71 #endif /* CONFIG_MTD_PARTITIONS */
  72
  73 static struct ar91xx_flash_platform_data ap83_flash_data = {
  74         .width          = 2,
  75 #ifdef CONFIG_MTD_PARTITIONS
  76         .parts          = ap83_flash_partitions,
  77         .nr_parts       = ARRAY_SIZE(ap83_flash_partitions),
  78 #endif
  79 };
  80
  81 static struct resource ap83_flash_resources[] = {
  82         [0] = {
  83                 .start  = AR71XX_SPI_BASE,
  84                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
  85                 .flags  = IORESOURCE_MEM,
  86         },
  87 };
  88
  89 static struct platform_device ap83_flash_device = {
  90         .name           = "ar91xx-flash",
  91         .id             = -1,
  92         .resource       = ap83_flash_resources,
  93         .num_resources  = ARRAY_SIZE(ap83_flash_resources),
  94         .dev            = {
  95                 .platform_data = &ap83_flash_data,
  96         }
  97 };
  98
  99 static struct gpio_led ap83_leds_gpio[] __initdata = {
 100         {
 101                 .name           = "ap83:green:jumpstart",
 102                 .gpio           = AP83_GPIO_LED_JUMPSTART,
 103                 .active_low     = 0,
 104         }, {
 105                 .name           = "ap83:green:power",
 106                 .gpio           = AP83_GPIO_LED_POWER,
 107                 .active_low     = 0,
 108         }, {
 109                 .name           = "ap83:green:wlan",
 110                 .gpio           = AP83_GPIO_LED_WLAN,
 111                 .active_low     = 0,
 112         },
 113 };
 114
 115 static struct gpio_button ap83_gpio_buttons[] __initdata = {
 116         {
 117                 .desc           = "soft_reset",
 118                 .type           = EV_KEY,
 119                 .code           = BTN_0,
 120                 .threshold      = 5,
 121                 .gpio           = AP83_GPIO_BTN_RESET,
 122                 .active_low     = 1,
 123         } , {
 124                 .desc           = "jumpstart",
 125                 .type           = EV_KEY,
 126                 .code           = BTN_1,
 127                 .threshold      = 5,
 128                 .gpio           = AP83_GPIO_BTN_JUMPSTART,
 129                 .active_low     = 1,
 130         }
 131 };
 132
 133 static struct resource ap83_040_spi_resources[] = {
 134         [0] = {
 135                 .start  = AR71XX_SPI_BASE,
 136                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 137                 .flags  = IORESOURCE_MEM,
 138         },
 139 };
 140
 141 static struct platform_device ap83_040_spi_device = {
 142         .name           = "ap83-spi",
 143         .id             = 0,
 144         .resource       = ap83_040_spi_resources,
 145         .num_resources  = ARRAY_SIZE(ap83_040_spi_resources),
 146 };
 147
 148 static struct spi_gpio_platform_data ap83_050_spi_data = {
 149         .miso   = AP83_050_GPIO_VSC7385_MISO,
 150         .mosi   = AP83_050_GPIO_VSC7385_MOSI,
 151         .sck    = AP83_050_GPIO_VSC7385_SCK,
 152         .num_chipselect = 1,
 153 };
 154
 155 static struct platform_device ap83_050_spi_device = {
 156         .name           = "spi_gpio",
 157         .id             = 0,
 158         .dev            = {
 159                 .platform_data = &ap83_050_spi_data,
 160         }
 161 };
 162
 163 static void ap83_vsc7385_reset(void)
 164 {
 165         ar71xx_device_stop(RESET_MODULE_GE1_PHY);
 166         udelay(10);
 167         ar71xx_device_start(RESET_MODULE_GE1_PHY);
 168         mdelay(50);
 169 }
 170
 171 static struct vsc7385_platform_data ap83_vsc7385_data = {
 172         .reset          = ap83_vsc7385_reset,
 173         .ucode_name     = "vsc7385_ucode_ap83.bin",
 174         .mac_cfg = {
 175                 .tx_ipg         = 6,
 176                 .bit2           = 0,
 177                 .clk_sel        = 3,
 178         },
 179 };
 180
 181 static struct spi_board_info ap83_spi_info[] = {
 182         {
 183                 .bus_num        = 0,
 184                 .chip_select    = 0,
 185                 .max_speed_hz   = 25000000,
 186                 .modalias       = "spi-vsc7385",
 187                 .platform_data  = &ap83_vsc7385_data,
 188                 .controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
 189         }
 190 };
 191
 192 static void __init ap83_generic_setup(void)
 193 {
 194         u8 *mac = (u8 *) KSEG1ADDR(0x1fff1000);
 195
 196         ar71xx_set_mac_base(mac);
 197
 198         ar71xx_add_device_mdio(0xfffffffe);
 199
 200         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 201         ar71xx_eth0_data.phy_mask = 0x1;
 202
 203         ar71xx_add_device_eth(0);
 204
 205         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 206         ar71xx_eth1_data.phy_mask = 0x0;
 207         ar71xx_eth1_data.speed = SPEED_1000;
 208         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 209
 210         ar71xx_eth1_pll_data.pll_1000 = 0x1f000000;
 211
 212         ar71xx_add_device_eth(1);
 213
 214         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ap83_leds_gpio),
 215                                         ap83_leds_gpio);
 216
 217         ar71xx_add_device_gpio_buttons(-1, 20, ARRAY_SIZE(ap83_gpio_buttons),
 218                                         ap83_gpio_buttons);
 219
 220         ar71xx_add_device_usb();
 221
 222         ar913x_add_device_wmac();
 223
 224         platform_device_register(&ap83_flash_device);
 225
 226         spi_register_board_info(ap83_spi_info, ARRAY_SIZE(ap83_spi_info));
 227 }
 228
 229 static void __init ap83_040_setup(void)
 230 {
 231         ap83_flash_data.is_shared=1;
 232         ap83_generic_setup();
 233         platform_device_register(&ap83_040_spi_device);
 234 }
 235
 236 static void __init ap83_050_setup(void)
 237 {
 238         ap83_generic_setup();
 239         platform_device_register(&ap83_050_spi_device);
 240 }
 241
 242 static void __init ap83_setup(void)
 243 {
 244         u8 *board_id = (u8 *) KSEG1ADDR(0x1fff1244);
 245         unsigned int board_version;
 246
 247         board_version = (unsigned int)(board_id[0] - '0');
 248         board_version += ((unsigned int)(board_id[1] - '0')) * 10;
 249
 250         switch (board_version) {
 251         case 40:
 252                 ap83_040_setup();
 253                 break;
 254         case 50:
 255                 ap83_050_setup();
 256                 break;
 257         default:
 258                 printk(KERN_WARNING "AP83-%03u board is not yet supported\n",
 259                        board_version);
 260         }
 261 }
 262
 263 MIPS_MACHINE(AR71XX_MACH_AP83, "Atheros AP83", ap83_setup);