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