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/mips_machine.h>
  21 #include <asm/mach-ar71xx/ar71xx.h>
  22 #include <asm/mach-ar71xx/ar91xx_flash.h>
  23
  24 #include "devices.h"
  25 #include "dev-ar913x-wmac.h"
  26 #include "dev-gpio-buttons.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 #define AP83_BUTTONS_POLL_INTERVAL      20
  41
  42 #ifdef CONFIG_MTD_PARTITIONS
  43 static struct mtd_partition ap83_flash_partitions[] = {
  44         {
  45                 .name           = "u-boot",
  46                 .offset         = 0,
  47                 .size           = 0x040000,
  48                 .mask_flags     = MTD_WRITEABLE,
  49         } , {
  50                 .name           = "u-boot-env",
  51                 .offset         = 0x040000,
  52                 .size           = 0x020000,
  53                 .mask_flags     = MTD_WRITEABLE,
  54         } , {
  55                 .name           = "kernel",
  56                 .offset         = 0x060000,
  57                 .size           = 0x140000,
  58         } , {
  59                 .name           = "rootfs",
  60                 .offset         = 0x1a0000,
  61                 .size           = 0x650000,
  62         } , {
  63                 .name           = "art",
  64                 .offset         = 0x7f0000,
  65                 .size           = 0x010000,
  66                 .mask_flags     = MTD_WRITEABLE,
  67         } , {
  68                 .name           = "firmware",
  69                 .offset         = 0x060000,
  70                 .size           = 0x790000,
  71         }
  72 };
  73 #endif /* CONFIG_MTD_PARTITIONS */
  74
  75 static struct ar91xx_flash_platform_data ap83_flash_data = {
  76         .width          = 2,
  77 #ifdef CONFIG_MTD_PARTITIONS
  78         .parts          = ap83_flash_partitions,
  79         .nr_parts       = ARRAY_SIZE(ap83_flash_partitions),
  80 #endif
  81 };
  82
  83 static struct resource ap83_flash_resources[] = {
  84         [0] = {
  85                 .start  = AR71XX_SPI_BASE,
  86                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
  87                 .flags  = IORESOURCE_MEM,
  88         },
  89 };
  90
  91 static struct platform_device ap83_flash_device = {
  92         .name           = "ar91xx-flash",
  93         .id             = -1,
  94         .resource       = ap83_flash_resources,
  95         .num_resources  = ARRAY_SIZE(ap83_flash_resources),
  96         .dev            = {
  97                 .platform_data = &ap83_flash_data,
  98         }
  99 };
 100
 101 static struct gpio_led ap83_leds_gpio[] __initdata = {
 102         {
 103                 .name           = "ap83:green:jumpstart",
 104                 .gpio           = AP83_GPIO_LED_JUMPSTART,
 105                 .active_low     = 0,
 106         }, {
 107                 .name           = "ap83:green:power",
 108                 .gpio           = AP83_GPIO_LED_POWER,
 109                 .active_low     = 0,
 110         }, {
 111                 .name           = "ap83:green:wlan",
 112                 .gpio           = AP83_GPIO_LED_WLAN,
 113                 .active_low     = 0,
 114         },
 115 };
 116
 117 static struct gpio_button ap83_gpio_buttons[] __initdata = {
 118         {
 119                 .desc           = "soft_reset",
 120                 .type           = EV_KEY,
 121                 .code           = BTN_0,
 122                 .threshold      = 5,
 123                 .gpio           = AP83_GPIO_BTN_RESET,
 124                 .active_low     = 1,
 125         } , {
 126                 .desc           = "jumpstart",
 127                 .type           = EV_KEY,
 128                 .code           = BTN_1,
 129                 .threshold      = 5,
 130                 .gpio           = AP83_GPIO_BTN_JUMPSTART,
 131                 .active_low     = 1,
 132         }
 133 };
 134
 135 static struct resource ap83_040_spi_resources[] = {
 136         [0] = {
 137                 .start  = AR71XX_SPI_BASE,
 138                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 139                 .flags  = IORESOURCE_MEM,
 140         },
 141 };
 142
 143 static struct platform_device ap83_040_spi_device = {
 144         .name           = "ap83-spi",
 145         .id             = 0,
 146         .resource       = ap83_040_spi_resources,
 147         .num_resources  = ARRAY_SIZE(ap83_040_spi_resources),
 148 };
 149
 150 static struct spi_gpio_platform_data ap83_050_spi_data = {
 151         .miso   = AP83_050_GPIO_VSC7385_MISO,
 152         .mosi   = AP83_050_GPIO_VSC7385_MOSI,
 153         .sck    = AP83_050_GPIO_VSC7385_SCK,
 154         .num_chipselect = 1,
 155 };
 156
 157 static struct platform_device ap83_050_spi_device = {
 158         .name           = "spi_gpio",
 159         .id             = 0,
 160         .dev            = {
 161                 .platform_data = &ap83_050_spi_data,
 162         }
 163 };
 164
 165 static void ap83_vsc7385_reset(void)
 166 {
 167         ar71xx_device_stop(RESET_MODULE_GE1_PHY);
 168         udelay(10);
 169         ar71xx_device_start(RESET_MODULE_GE1_PHY);
 170         mdelay(50);
 171 }
 172
 173 static struct vsc7385_platform_data ap83_vsc7385_data = {
 174         .reset          = ap83_vsc7385_reset,
 175         .ucode_name     = "vsc7385_ucode_ap83.bin",
 176         .mac_cfg = {
 177                 .tx_ipg         = 6,
 178                 .bit2           = 0,
 179                 .clk_sel        = 3,
 180         },
 181 };
 182
 183 static struct spi_board_info ap83_spi_info[] = {
 184         {
 185                 .bus_num        = 0,
 186                 .chip_select    = 0,
 187                 .max_speed_hz   = 25000000,
 188                 .modalias       = "spi-vsc7385",
 189                 .platform_data  = &ap83_vsc7385_data,
 190                 .controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
 191         }
 192 };
 193
 194 static void __init ap83_generic_setup(void)
 195 {
 196         u8 *mac = (u8 *) KSEG1ADDR(0x1fff1000);
 197
 198         ar71xx_set_mac_base(mac);
 199
 200         ar71xx_add_device_mdio(0xfffffffe);
 201
 202         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 203         ar71xx_eth0_data.phy_mask = 0x1;
 204
 205         ar71xx_add_device_eth(0);
 206
 207         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 208         ar71xx_eth1_data.phy_mask = 0x0;
 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();
 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, "Atheros AP83", ap83_setup);