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
  27 #define AP83_GPIO_LED_WLAN      6
  28 #define AP83_GPIO_LED_POWER     14
  29 #define AP83_GPIO_LED_JUMPSTART 15
  30 #define AP83_GPIO_BTN_JUMPSTART 12
  31 #define AP83_GPIO_BTN_RESET     21
  32
  33 #define AP83_050_GPIO_VSC7385_CS        1
  34 #define AP83_050_GPIO_VSC7385_MISO      3
  35 #define AP83_050_GPIO_VSC7385_MOSI      16
  36 #define AP83_050_GPIO_VSC7385_SCK       17
  37
  38 #ifdef CONFIG_MTD_PARTITIONS
  39 static struct mtd_partition ap83_flash_partitions[] = {
  40         {
  41                 .name           = "u-boot",
  42                 .offset         = 0,
  43                 .size           = 0x040000,
  44                 .mask_flags     = MTD_WRITEABLE,
  45         } , {
  46                 .name           = "u-boot-env",
  47                 .offset         = 0x040000,
  48                 .size           = 0x020000,
  49                 .mask_flags     = MTD_WRITEABLE,
  50         } , {
  51                 .name           = "kernel",
  52                 .offset         = 0x060000,
  53                 .size           = 0x140000,
  54         } , {
  55                 .name           = "rootfs",
  56                 .offset         = 0x1a0000,
  57                 .size           = 0x650000,
  58         } , {
  59                 .name           = "art",
  60                 .offset         = 0x7f0000,
  61                 .size           = 0x010000,
  62                 .mask_flags     = MTD_WRITEABLE,
  63         } , {
  64                 .name           = "firmware",
  65                 .offset         = 0x060000,
  66                 .size           = 0x790000,
  67         }
  68 };
  69 #endif /* CONFIG_MTD_PARTITIONS */
  70
  71 static struct ar91xx_flash_platform_data ap83_flash_data = {
  72         .width          = 2,
  73 #ifdef CONFIG_MTD_PARTITIONS
  74         .parts          = ap83_flash_partitions,
  75         .nr_parts       = ARRAY_SIZE(ap83_flash_partitions),
  76 #endif
  77 };
  78
  79 static struct resource ap83_flash_resources[] = {
  80         [0] = {
  81                 .start  = AR71XX_SPI_BASE,
  82                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
  83                 .flags  = IORESOURCE_MEM,
  84         },
  85 };
  86
  87 static struct platform_device ap83_flash_device = {
  88         .name           = "ar91xx-flash",
  89         .id             = -1,
  90         .resource       = ap83_flash_resources,
  91         .num_resources  = ARRAY_SIZE(ap83_flash_resources),
  92         .dev            = {
  93                 .platform_data = &ap83_flash_data,
  94         }
  95 };
  96
  97 static struct gpio_led ap83_leds_gpio[] __initdata = {
  98         {
  99                 .name           = "ap83:green:jumpstart",
 100                 .gpio           = AP83_GPIO_LED_JUMPSTART,
 101                 .active_low     = 0,
 102         }, {
 103                 .name           = "ap83:green:power",
 104                 .gpio           = AP83_GPIO_LED_POWER,
 105                 .active_low     = 0,
 106         }, {
 107                 .name           = "ap83:green:wlan",
 108                 .gpio           = AP83_GPIO_LED_WLAN,
 109                 .active_low     = 0,
 110         },
 111 };
 112
 113 static struct gpio_button ap83_gpio_buttons[] __initdata = {
 114         {
 115                 .desc           = "soft_reset",
 116                 .type           = EV_KEY,
 117                 .code           = BTN_0,
 118                 .threshold      = 5,
 119                 .gpio           = AP83_GPIO_BTN_RESET,
 120                 .active_low     = 1,
 121         } , {
 122                 .desc           = "jumpstart",
 123                 .type           = EV_KEY,
 124                 .code           = BTN_1,
 125                 .threshold      = 5,
 126                 .gpio           = AP83_GPIO_BTN_JUMPSTART,
 127                 .active_low     = 1,
 128         }
 129 };
 130
 131 static struct resource ap83_040_spi_resources[] = {
 132         [0] = {
 133                 .start  = AR71XX_SPI_BASE,
 134                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 135                 .flags  = IORESOURCE_MEM,
 136         },
 137 };
 138
 139 static struct platform_device ap83_040_spi_device = {
 140         .name           = "ap83-spi",
 141         .id             = 0,
 142         .resource       = ap83_040_spi_resources,
 143         .num_resources  = ARRAY_SIZE(ap83_040_spi_resources),
 144 };
 145
 146 static struct spi_gpio_platform_data ap83_050_spi_data = {
 147         .miso   = AP83_050_GPIO_VSC7385_MISO,
 148         .mosi   = AP83_050_GPIO_VSC7385_MOSI,
 149         .sck    = AP83_050_GPIO_VSC7385_SCK,
 150         .num_chipselect = 1,
 151 };
 152
 153 static struct platform_device ap83_050_spi_device = {
 154         .name           = "spi_gpio",
 155         .id             = 0,
 156         .dev            = {
 157                 .platform_data = &ap83_050_spi_data,
 158         }
 159 };
 160
 161 static void ap83_vsc7385_reset(void)
 162 {
 163         ar71xx_device_stop(RESET_MODULE_GE1_PHY);
 164         udelay(10);
 165         ar71xx_device_start(RESET_MODULE_GE1_PHY);
 166         mdelay(50);
 167 }
 168
 169 static struct vsc7385_platform_data ap83_vsc7385_data = {
 170         .reset          = ap83_vsc7385_reset,
 171         .ucode_name     = "vsc7385_ucode_ap83.bin",
 172         .mac_cfg = {
 173                 .tx_ipg         = 6,
 174                 .bit2           = 0,
 175                 .clk_sel        = 3,
 176         },
 177 };
 178
 179 static struct spi_board_info ap83_spi_info[] = {
 180         {
 181                 .bus_num        = 0,
 182                 .chip_select    = 0,
 183                 .max_speed_hz   = 25000000,
 184                 .modalias       = "spi-vsc7385",
 185                 .platform_data  = &ap83_vsc7385_data,
 186                 .controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
 187         }
 188 };
 189
 190 static void __init ap83_generic_setup(void)
 191 {
 192         u8 *mac = (u8 *) KSEG1ADDR(0x1fff1000);
 193
 194         ar71xx_set_mac_base(mac);
 195
 196         ar71xx_add_device_mdio(0xfffffffe);
 197
 198         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 199         ar71xx_eth0_data.phy_mask = 0x1;
 200
 201         ar71xx_add_device_eth(0);
 202
 203         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 204         ar71xx_eth1_data.phy_mask = 0x0;
 205         ar71xx_eth1_data.speed = SPEED_1000;
 206         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 207
 208         ar71xx_eth1_pll_data.pll_1000 = 0x1f000000;
 209
 210         ar71xx_add_device_eth(1);
 211
 212         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ap83_leds_gpio),
 213                                         ap83_leds_gpio);
 214
 215         ar71xx_add_device_gpio_buttons(-1, 20, ARRAY_SIZE(ap83_gpio_buttons),
 216                                         ap83_gpio_buttons);
 217
 218         ar71xx_add_device_usb();
 219
 220         ar91xx_add_device_wmac();
 221
 222         platform_device_register(&ap83_flash_device);
 223
 224         spi_register_board_info(ap83_spi_info, ARRAY_SIZE(ap83_spi_info));
 225 }
 226
 227 static void __init ap83_040_setup(void)
 228 {
 229         ap83_flash_data.is_shared=1;
 230         ap83_generic_setup();
 231         platform_device_register(&ap83_040_spi_device);
 232 }
 233
 234 static void __init ap83_050_setup(void)
 235 {
 236         ap83_generic_setup();
 237         platform_device_register(&ap83_050_spi_device);
 238 }
 239
 240 static void __init ap83_setup(void)
 241 {
 242         u8 *board_id = (u8 *) KSEG1ADDR(0x1fff1244);
 243         unsigned int board_version;
 244
 245         board_version = (unsigned int)(board_id[0] - '0');
 246         board_version += ((unsigned int)(board_id[1] - '0')) * 10;
 247
 248         switch (board_version) {
 249         case 40:
 250                 ap83_040_setup();
 251                 break;
 252         case 50:
 253                 ap83_050_setup();
 254                 break;
 255         default:
 256                 printk(KERN_WARNING "AP83-%03u board is not yet supported\n",
 257                        board_version);
 258         }
 259 }
 260
 261 MIPS_MACHINE(AR71XX_MACH_AP83, "Atheros AP83", ap83_setup);