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-ar9xxx-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_KEYS_POLL_INTERVAL         20      /* msecs */
  42 #define AP83_KEYS_DEBOUNCE_INTERVAL     (3 * AP83_KEYS_POLL_INTERVAL)
  43
  44 #ifdef CONFIG_MTD_PARTITIONS
  45 static struct mtd_partition ap83_flash_partitions[] = {
  46         {
  47                 .name           = "u-boot",
  48                 .offset         = 0,
  49                 .size           = 0x040000,
  50                 .mask_flags     = MTD_WRITEABLE,
  51         }, {
  52                 .name           = "u-boot-env",
  53                 .offset         = 0x040000,
  54                 .size           = 0x020000,
  55                 .mask_flags     = MTD_WRITEABLE,
  56         }, {
  57                 .name           = "kernel",
  58                 .offset         = 0x060000,
  59                 .size           = 0x140000,
  60         }, {
  61                 .name           = "rootfs",
  62                 .offset         = 0x1a0000,
  63                 .size           = 0x650000,
  64         }, {
  65                 .name           = "art",
  66                 .offset         = 0x7f0000,
  67                 .size           = 0x010000,
  68                 .mask_flags     = MTD_WRITEABLE,
  69         }, {
  70                 .name           = "firmware",
  71                 .offset         = 0x060000,
  72                 .size           = 0x790000,
  73         }
  74 };
  75 #endif /* CONFIG_MTD_PARTITIONS */
  76
  77 static struct ar91xx_flash_platform_data ap83_flash_data = {
  78         .width          = 2,
  79 #ifdef CONFIG_MTD_PARTITIONS
  80         .parts          = ap83_flash_partitions,
  81         .nr_parts       = ARRAY_SIZE(ap83_flash_partitions),
  82 #endif
  83 };
  84
  85 static struct resource ap83_flash_resources[] = {
  86         [0] = {
  87                 .start  = AR71XX_SPI_BASE,
  88                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
  89                 .flags  = IORESOURCE_MEM,
  90         },
  91 };
  92
  93 static struct platform_device ap83_flash_device = {
  94         .name           = "ar91xx-flash",
  95         .id             = -1,
  96         .resource       = ap83_flash_resources,
  97         .num_resources  = ARRAY_SIZE(ap83_flash_resources),
  98         .dev            = {
  99                 .platform_data = &ap83_flash_data,
 100         }
 101 };
 102
 103 static struct gpio_led ap83_leds_gpio[] __initdata = {
 104         {
 105                 .name           = "ap83:green:jumpstart",
 106                 .gpio           = AP83_GPIO_LED_JUMPSTART,
 107                 .active_low     = 0,
 108         }, {
 109                 .name           = "ap83:green:power",
 110                 .gpio           = AP83_GPIO_LED_POWER,
 111                 .active_low     = 0,
 112         }, {
 113                 .name           = "ap83:green:wlan",
 114                 .gpio           = AP83_GPIO_LED_WLAN,
 115                 .active_low     = 0,
 116         },
 117 };
 118
 119 static struct gpio_keys_button ap83_gpio_keys[] __initdata = {
 120         {
 121                 .desc           = "soft_reset",
 122                 .type           = EV_KEY,
 123                 .code           = KEY_RESTART,
 124                 .debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
 125                 .gpio           = AP83_GPIO_BTN_RESET,
 126                 .active_low     = 1,
 127         }, {
 128                 .desc           = "jumpstart",
 129                 .type           = EV_KEY,
 130                 .code           = KEY_WPS_BUTTON,
 131                 .debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
 132                 .gpio           = AP83_GPIO_BTN_JUMPSTART,
 133                 .active_low     = 1,
 134         }
 135 };
 136
 137 static struct resource ap83_040_spi_resources[] = {
 138         [0] = {
 139                 .start  = AR71XX_SPI_BASE,
 140                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 141                 .flags  = IORESOURCE_MEM,
 142         },
 143 };
 144
 145 static struct platform_device ap83_040_spi_device = {
 146         .name           = "ap83-spi",
 147         .id             = 0,
 148         .resource       = ap83_040_spi_resources,
 149         .num_resources  = ARRAY_SIZE(ap83_040_spi_resources),
 150 };
 151
 152 static struct spi_gpio_platform_data ap83_050_spi_data = {
 153         .miso   = AP83_050_GPIO_VSC7385_MISO,
 154         .mosi   = AP83_050_GPIO_VSC7385_MOSI,
 155         .sck    = AP83_050_GPIO_VSC7385_SCK,
 156         .num_chipselect = 1,
 157 };
 158
 159 static struct platform_device ap83_050_spi_device = {
 160         .name           = "spi_gpio",
 161         .id             = 0,
 162         .dev            = {
 163                 .platform_data = &ap83_050_spi_data,
 164         }
 165 };
 166
 167 static void ap83_vsc7385_reset(void)
 168 {
 169         ar71xx_device_stop(RESET_MODULE_GE1_PHY);
 170         udelay(10);
 171         ar71xx_device_start(RESET_MODULE_GE1_PHY);
 172         mdelay(50);
 173 }
 174
 175 static struct vsc7385_platform_data ap83_vsc7385_data = {
 176         .reset          = ap83_vsc7385_reset,
 177         .ucode_name     = "vsc7385_ucode_ap83.bin",
 178         .mac_cfg = {
 179                 .tx_ipg         = 6,
 180                 .bit2           = 0,
 181                 .clk_sel        = 3,
 182         },
 183 };
 184
 185 static struct spi_board_info ap83_spi_info[] = {
 186         {
 187                 .bus_num        = 0,
 188                 .chip_select    = 0,
 189                 .max_speed_hz   = 25000000,
 190                 .modalias       = "spi-vsc7385",
 191                 .platform_data  = &ap83_vsc7385_data,
 192                 .controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
 193         }
 194 };
 195
 196 static void __init ap83_generic_setup(void)
 197 {
 198         u8 *eeprom = (u8 *) KSEG1ADDR(0x1fff1000);
 199
 200         ar71xx_add_device_mdio(0xfffffffe);
 201
 202         ar71xx_init_mac(ar71xx_eth0_data.mac_addr, eeprom, 0);
 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_init_mac(ar71xx_eth1_data.mac_addr, eeprom, 1);
 209         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 210         ar71xx_eth1_data.speed = SPEED_1000;
 211         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 212
 213         ar71xx_eth1_pll_data.pll_1000 = 0x1f000000;
 214
 215         ar71xx_add_device_eth(1);
 216
 217         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(ap83_leds_gpio),
 218                                         ap83_leds_gpio);
 219
 220         ar71xx_register_gpio_keys_polled(-1, AP83_KEYS_POLL_INTERVAL,
 221                                          ARRAY_SIZE(ap83_gpio_keys),
 222                                          ap83_gpio_keys);
 223
 224         ar71xx_add_device_usb();
 225
 226         ar9xxx_add_device_wmac(eeprom, NULL);
 227
 228         platform_device_register(&ap83_flash_device);
 229
 230         spi_register_board_info(ap83_spi_info, ARRAY_SIZE(ap83_spi_info));
 231 }
 232
 233 static void __init ap83_040_setup(void)
 234 {
 235         ap83_flash_data.is_shared = 1;
 236         ap83_generic_setup();
 237         platform_device_register(&ap83_040_spi_device);
 238 }
 239
 240 static void __init ap83_050_setup(void)
 241 {
 242         ap83_generic_setup();
 243         platform_device_register(&ap83_050_spi_device);
 244 }
 245
 246 static void __init ap83_setup(void)
 247 {
 248         u8 *board_id = (u8 *) KSEG1ADDR(0x1fff1244);
 249         unsigned int board_version;
 250
 251         board_version = (unsigned int)(board_id[0] - '0');
 252         board_version += ((unsigned int)(board_id[1] - '0')) * 10;
 253
 254         switch (board_version) {
 255         case 40:
 256                 ap83_040_setup();
 257                 break;
 258         case 50:
 259                 ap83_050_setup();
 260                 break;
 261         default:
 262                 printk(KERN_WARNING "AP83-%03u board is not yet supported\n",
 263                        board_version);
 264         }
 265 }
 266
 267 MIPS_MACHINE(AR71XX_MACH_AP83, "AP83", "Atheros AP83", ap83_setup);