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/input.h>
  14 #include <linux/delay.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/spi/spi.h>
  17 #include <linux/spi/flash.h>
  18 #include <linux/spi/vsc7385.h>
  19 #include <linux/i2c.h>
  20 #include <linux/i2c-gpio.h>
  21 #include <linux/i2c/pcf857x.h>
  22
  23 #include <asm/mips_machine.h>
  24 #include <asm/mach-ar71xx/ar71xx.h>
  25
  26 #include "devices.h"
  27 #include "dev-pb42-pci.h"
  28
  29 #define PB44_PCF8757_VSC7395_CS 0
  30 #define PB44_PCF8757_STEREO_CS  1
  31 #define PB44_PCF8757_SLIC_CS0   2
  32 #define PB44_PCF8757_SLIC_TEST  3
  33 #define PB44_PCF8757_SLIC_INT0  4
  34 #define PB44_PCF8757_SLIC_INT1  5
  35 #define PB44_PCF8757_SW_RESET   6
  36 #define PB44_PCF8757_SW_JUMP    8
  37 #define PB44_PCF8757_LED_JUMP1  9
  38 #define PB44_PCF8757_LED_JUMP2  10
  39 #define PB44_PCF8757_TP24       11
  40 #define PB44_PCF8757_TP25       12
  41 #define PB44_PCF8757_TP26       13
  42 #define PB44_PCF8757_TP27       14
  43 #define PB44_PCF8757_TP28       15
  44
  45 #define PB44_GPIO_I2C_SCL       0
  46 #define PB44_GPIO_I2C_SDA       1
  47
  48 #define PB44_GPIO_EXP_BASE      16
  49 #define PB44_GPIO_VSC7395_CS    (PB44_GPIO_EXP_BASE + PB44_PCF8757_VSC7395_CS)
  50 #define PB44_GPIO_SW_RESET      (PB44_GPIO_EXP_BASE + PB44_PCF8757_SW_RESET)
  51 #define PB44_GPIO_SW_JUMP       (PB44_GPIO_EXP_BASE + PB44_PCF8757_SW_JUMP)
  52 #define PB44_GPIO_LED_JUMP1     (PB44_GPIO_EXP_BASE + PB44_PCF8757_LED_JUMP1)
  53 #define PB44_GPIO_LED_JUMP2     (PB44_GPIO_EXP_BASE + PB44_PCF8757_LED_JUMP2)
  54
  55 static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
  56         .sda_pin        = PB44_GPIO_I2C_SDA,
  57         .scl_pin        = PB44_GPIO_I2C_SCL,
  58 };
  59
  60 static struct platform_device pb44_i2c_gpio_device = {
  61         .name           = "i2c-gpio",
  62         .id             = 0,
  63         .dev = {
  64                 .platform_data  = &pb44_i2c_gpio_data,
  65         }
  66 };
  67
  68 static struct pcf857x_platform_data pb44_pcf857x_data = {
  69         .gpio_base      = PB44_GPIO_EXP_BASE,
  70 };
  71
  72 static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
  73         {
  74                 I2C_BOARD_INFO("pcf8575", 0x20),
  75                 .platform_data  = &pb44_pcf857x_data,
  76         },
  77 };
  78
  79 static struct gpio_led pb44_leds_gpio[] __initdata = {
  80         {
  81                 .name           = "pb44:amber:jump1",
  82                 .gpio           = PB44_GPIO_LED_JUMP1,
  83                 .active_low     = 1,
  84         }, {
  85                 .name           = "pb44:green:jump2",
  86                 .gpio           = PB44_GPIO_LED_JUMP2,
  87                 .active_low     = 1,
  88         },
  89 };
  90
  91 static struct gpio_button pb44_gpio_buttons[] __initdata = {
  92         {
  93                 .desc           = "soft_reset",
  94                 .type           = EV_KEY,
  95                 .code           = BTN_0,
  96                 .threshold      = 5,
  97                 .gpio           = PB44_GPIO_SW_RESET,
  98                 .active_low     = 1,
  99         } , {
 100                 .desc           = "jumpstart",
 101                 .type           = EV_KEY,
 102                 .code           = BTN_1,
 103                 .threshold      = 5,
 104                 .gpio           = PB44_GPIO_SW_JUMP,
 105                 .active_low     = 1,
 106         }
 107 };
 108
 109 static void pb44_vsc7395_reset(void)
 110 {
 111         ar71xx_device_stop(RESET_MODULE_GE1_PHY);
 112         udelay(10);
 113         ar71xx_device_start(RESET_MODULE_GE1_PHY);
 114         mdelay(50);
 115 }
 116
 117 static struct vsc7385_platform_data pb44_vsc7395_data = {
 118         .reset          = pb44_vsc7395_reset,
 119         .ucode_name     = "vsc7395_ucode_pb44.bin",
 120         .mac_cfg = {
 121                 .tx_ipg         = 6,
 122                 .bit2           = 1,
 123                 .clk_sel        = 0,
 124         },
 125 };
 126
 127 static struct spi_board_info pb44_spi_info[] = {
 128         {
 129                 .bus_num        = 0,
 130                 .chip_select    = 0,
 131                 .max_speed_hz   = 25000000,
 132                 .modalias       = "m25p80",
 133         }, {
 134                 .bus_num        = 0,
 135                 .chip_select    = 1,
 136                 .max_speed_hz   = 25000000,
 137                 .modalias       = "spi-vsc7385",
 138                 .platform_data  = &pb44_vsc7395_data,
 139                 .controller_data = (void *) PB44_GPIO_VSC7395_CS,
 140         },
 141 };
 142
 143 static struct resource pb44_spi_resources[] = {
 144         [0] = {
 145                 .start  = AR71XX_SPI_BASE,
 146                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 147                 .flags  = IORESOURCE_MEM,
 148         },
 149 };
 150
 151 static struct ar71xx_spi_platform_data pb44_spi_data = {
 152         .bus_num                = 0,
 153         .num_chipselect         = 2,
 154 };
 155
 156 static struct platform_device pb44_spi_device = {
 157         .name           = "pb44-spi",
 158         .id             = -1,
 159         .resource       = pb44_spi_resources,
 160         .num_resources  = ARRAY_SIZE(pb44_spi_resources),
 161         .dev = {
 162                 .platform_data = &pb44_spi_data,
 163         },
 164 };
 165
 166 #define PB44_WAN_PHYMASK        BIT(0)
 167 #define PB44_LAN_PHYMASK        0
 168 #define PB44_MDIO_PHYMASK       (PB44_LAN_PHYMASK | PB44_WAN_PHYMASK)
 169
 170 static void __init pb44_init(void)
 171 {
 172         ar71xx_add_device_mdio(~PB44_MDIO_PHYMASK);
 173
 174         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 175         ar71xx_eth0_data.phy_mask = PB44_WAN_PHYMASK;
 176
 177         ar71xx_add_device_eth(0);
 178
 179         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 180         ar71xx_eth1_data.phy_mask = PB44_LAN_PHYMASK;
 181         ar71xx_eth1_data.speed = SPEED_1000;
 182         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 183         ar71xx_eth1_pll_data.pll_1000 = 0x110000;
 184
 185         ar71xx_add_device_eth(1);
 186
 187         ar71xx_add_device_usb();
 188
 189         pb42_pci_init();
 190
 191         i2c_register_board_info(0, pb44_i2c_board_info,
 192                                 ARRAY_SIZE(pb44_i2c_board_info));
 193
 194         platform_device_register(&pb44_i2c_gpio_device);
 195
 196         spi_register_board_info(pb44_spi_info, ARRAY_SIZE(pb44_spi_info));
 197         platform_device_register(&pb44_spi_device);
 198
 199         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
 200                                     pb44_leds_gpio);
 201
 202         ar71xx_add_device_gpio_buttons(-1, 20, ARRAY_SIZE(pb44_gpio_buttons),
 203                                        pb44_gpio_buttons);
 204 }
 205
 206 MIPS_MACHINE(AR71XX_MACH_PB44, "Atheros PB44", pb44_init);