target/linux/ar71xx/files/arch/mips/ar71xx/mach-pb44.c

   1 /*
   2  *  Atheros PB44 board support
   3  *
   4  *  Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  */
  10
  11 #include <linux/init.h>
  12 #include <linux/bitops.h>
  13 #include <linux/delay.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/spi/flash.h>
  17 #include <linux/spi/vsc7385.h>
  18 #include <linux/i2c.h>
  19 #include <linux/i2c-gpio.h>
  20 #include <linux/i2c/pcf857x.h>
  21
  22 #include <asm/mach-ar71xx/ar71xx.h>
  23
  24 #include "machtype.h"
  25 #include "devices.h"
  26 #include "dev-pb42-pci.h"
  27 #include "dev-gpio-buttons.h"
  28 #include "dev-leds-gpio.h"
  29 #include "dev-usb.h"
  30
  31 #define PB44_PCF8757_VSC7395_CS 0
  32 #define PB44_PCF8757_STEREO_CS  1
  33 #define PB44_PCF8757_SLIC_CS0   2
  34 #define PB44_PCF8757_SLIC_TEST  3
  35 #define PB44_PCF8757_SLIC_INT0  4
  36 #define PB44_PCF8757_SLIC_INT1  5
  37 #define PB44_PCF8757_SW_RESET   6
  38 #define PB44_PCF8757_SW_JUMP    8
  39 #define PB44_PCF8757_LED_JUMP1  9
  40 #define PB44_PCF8757_LED_JUMP2  10
  41 #define PB44_PCF8757_TP24       11
  42 #define PB44_PCF8757_TP25       12
  43 #define PB44_PCF8757_TP26       13
  44 #define PB44_PCF8757_TP27       14
  45 #define PB44_PCF8757_TP28       15
  46
  47 #define PB44_GPIO_I2C_SCL       0
  48 #define PB44_GPIO_I2C_SDA       1
  49
  50 #define PB44_GPIO_EXP_BASE      16
  51 #define PB44_GPIO_VSC7395_CS    (PB44_GPIO_EXP_BASE + PB44_PCF8757_VSC7395_CS)
  52 #define PB44_GPIO_SW_RESET      (PB44_GPIO_EXP_BASE + PB44_PCF8757_SW_RESET)
  53 #define PB44_GPIO_SW_JUMP       (PB44_GPIO_EXP_BASE + PB44_PCF8757_SW_JUMP)
  54 #define PB44_GPIO_LED_JUMP1     (PB44_GPIO_EXP_BASE + PB44_PCF8757_LED_JUMP1)
  55 #define PB44_GPIO_LED_JUMP2     (PB44_GPIO_EXP_BASE + PB44_PCF8757_LED_JUMP2)
  56
  57 #define PB44_KEYS_POLL_INTERVAL         20      /* msecs */
  58 #define PB44_KEYS_DEBOUNCE_INTERVAL     (3 * PB44_KEYS_POLL_INTERVAL)
  59
  60 static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
  61         .sda_pin        = PB44_GPIO_I2C_SDA,
  62         .scl_pin        = PB44_GPIO_I2C_SCL,
  63 };
  64
  65 static struct platform_device pb44_i2c_gpio_device = {
  66         .name           = "i2c-gpio",
  67         .id             = 0,
  68         .dev = {
  69                 .platform_data  = &pb44_i2c_gpio_data,
  70         }
  71 };
  72
  73 static struct pcf857x_platform_data pb44_pcf857x_data = {
  74         .gpio_base      = PB44_GPIO_EXP_BASE,
  75 };
  76
  77 static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
  78         {
  79                 I2C_BOARD_INFO("pcf8575", 0x20),
  80                 .platform_data  = &pb44_pcf857x_data,
  81         },
  82 };
  83
  84 static struct gpio_led pb44_leds_gpio[] __initdata = {
  85         {
  86                 .name           = "pb44:amber:jump1",
  87                 .gpio           = PB44_GPIO_LED_JUMP1,
  88                 .active_low     = 1,
  89         }, {
  90                 .name           = "pb44:green:jump2",
  91                 .gpio           = PB44_GPIO_LED_JUMP2,
  92                 .active_low     = 1,
  93         },
  94 };
  95
  96 static struct gpio_keys_button pb44_gpio_keys[] __initdata = {
  97         {
  98                 .desc           = "soft_reset",
  99                 .type           = EV_KEY,
 100                 .code           = KEY_RESTART,
 101                 .debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
 102                 .gpio           = PB44_GPIO_SW_RESET,
 103                 .active_low     = 1,
 104         }, {
 105                 .desc           = "jumpstart",
 106                 .type           = EV_KEY,
 107                 .code           = KEY_WPS_BUTTON,
 108                 .debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
 109                 .gpio           = PB44_GPIO_SW_JUMP,
 110                 .active_low     = 1,
 111         }
 112 };
 113
 114 static void pb44_vsc7395_reset(void)
 115 {
 116         ar71xx_device_stop(RESET_MODULE_GE1_PHY);
 117         udelay(10);
 118         ar71xx_device_start(RESET_MODULE_GE1_PHY);
 119         mdelay(50);
 120 }
 121
 122 static struct vsc7385_platform_data pb44_vsc7395_data = {
 123         .reset          = pb44_vsc7395_reset,
 124         .ucode_name     = "vsc7395_ucode_pb44.bin",
 125         .mac_cfg = {
 126                 .tx_ipg         = 6,
 127                 .bit2           = 1,
 128                 .clk_sel        = 0,
 129         },
 130 };
 131
 132 static const char *pb44_part_probes[] = {
 133         "RedBoot",
 134         NULL,
 135 };
 136
 137 static struct flash_platform_data pb44_flash_data = {
 138         .part_probes    = pb44_part_probes,
 139 };
 140
 141 static struct spi_board_info pb44_spi_info[] = {
 142         {
 143                 .bus_num        = 0,
 144                 .chip_select    = 0,
 145                 .max_speed_hz   = 25000000,
 146                 .modalias       = "m25p80",
 147                 .platform_data  = &pb44_flash_data,
 148         }, {
 149                 .bus_num        = 0,
 150                 .chip_select    = 1,
 151                 .max_speed_hz   = 25000000,
 152                 .modalias       = "spi-vsc7385",
 153                 .platform_data  = &pb44_vsc7395_data,
 154                 .controller_data = (void *) PB44_GPIO_VSC7395_CS,
 155         },
 156 };
 157
 158 static struct resource pb44_spi_resources[] = {
 159         [0] = {
 160                 .start  = AR71XX_SPI_BASE,
 161                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 162                 .flags  = IORESOURCE_MEM,
 163         },
 164 };
 165
 166 static struct ar71xx_spi_platform_data pb44_spi_data = {
 167         .bus_num                = 0,
 168         .num_chipselect         = 2,
 169 };
 170
 171 static struct platform_device pb44_spi_device = {
 172         .name           = "pb44-spi",
 173         .id             = -1,
 174         .resource       = pb44_spi_resources,
 175         .num_resources  = ARRAY_SIZE(pb44_spi_resources),
 176         .dev = {
 177                 .platform_data = &pb44_spi_data,
 178         },
 179 };
 180
 181 #define PB44_WAN_PHYMASK        BIT(0)
 182 #define PB44_LAN_PHYMASK        0
 183 #define PB44_MDIO_PHYMASK       (PB44_LAN_PHYMASK | PB44_WAN_PHYMASK)
 184
 185 static void __init pb44_init(void)
 186 {
 187         ar71xx_add_device_mdio(0, ~PB44_MDIO_PHYMASK);
 188
 189         ar71xx_init_mac(ar71xx_eth0_data.mac_addr, ar71xx_mac_base, 0);
 190         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 191         ar71xx_eth0_data.phy_mask = PB44_WAN_PHYMASK;
 192
 193         ar71xx_add_device_eth(0);
 194
 195         ar71xx_init_mac(ar71xx_eth1_data.mac_addr, ar71xx_mac_base, 1);
 196         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 197         ar71xx_eth1_data.speed = SPEED_1000;
 198         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 199         ar71xx_eth1_pll_data.pll_1000 = 0x110000;
 200
 201         ar71xx_add_device_eth(1);
 202
 203         ar71xx_add_device_usb();
 204
 205         pb42_pci_init();
 206
 207         i2c_register_board_info(0, pb44_i2c_board_info,
 208                                 ARRAY_SIZE(pb44_i2c_board_info));
 209
 210         platform_device_register(&pb44_i2c_gpio_device);
 211
 212         spi_register_board_info(pb44_spi_info, ARRAY_SIZE(pb44_spi_info));
 213         platform_device_register(&pb44_spi_device);
 214
 215         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
 216                                         pb44_leds_gpio);
 217
 218         ar71xx_register_gpio_keys_polled(-1, PB44_KEYS_POLL_INTERVAL,
 219                                          ARRAY_SIZE(pb44_gpio_keys),
 220                                          pb44_gpio_keys);
 221 }
 222
 223 MIPS_MACHINE(AR71XX_MACH_PB44, "PB44", "Atheros PB44", pb44_init);