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/mips_machine.h>
  23 #include <asm/mach-ar71xx/ar71xx.h>
  24
  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 static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
  58         .sda_pin        = PB44_GPIO_I2C_SDA,
  59         .scl_pin        = PB44_GPIO_I2C_SCL,
  60 };
  61
  62 static struct platform_device pb44_i2c_gpio_device = {
  63         .name           = "i2c-gpio",
  64         .id             = 0,
  65         .dev = {
  66                 .platform_data  = &pb44_i2c_gpio_data,
  67         }
  68 };
  69
  70 static struct pcf857x_platform_data pb44_pcf857x_data = {
  71         .gpio_base      = PB44_GPIO_EXP_BASE,
  72 };
  73
  74 static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
  75         {
  76                 I2C_BOARD_INFO("pcf8575", 0x20),
  77                 .platform_data  = &pb44_pcf857x_data,
  78         },
  79 };
  80
  81 static struct gpio_led pb44_leds_gpio[] __initdata = {
  82         {
  83                 .name           = "pb44:amber:jump1",
  84                 .gpio           = PB44_GPIO_LED_JUMP1,
  85                 .active_low     = 1,
  86         }, {
  87                 .name           = "pb44:green:jump2",
  88                 .gpio           = PB44_GPIO_LED_JUMP2,
  89                 .active_low     = 1,
  90         },
  91 };
  92
  93 static struct gpio_button pb44_gpio_buttons[] __initdata = {
  94         {
  95                 .desc           = "soft_reset",
  96                 .type           = EV_KEY,
  97                 .code           = BTN_0,
  98                 .threshold      = 5,
  99                 .gpio           = PB44_GPIO_SW_RESET,
 100                 .active_low     = 1,
 101         } , {
 102                 .desc           = "jumpstart",
 103                 .type           = EV_KEY,
 104                 .code           = BTN_1,
 105                 .threshold      = 5,
 106                 .gpio           = PB44_GPIO_SW_JUMP,
 107                 .active_low     = 1,
 108         }
 109 };
 110
 111 static void pb44_vsc7395_reset(void)
 112 {
 113         ar71xx_device_stop(RESET_MODULE_GE1_PHY);
 114         udelay(10);
 115         ar71xx_device_start(RESET_MODULE_GE1_PHY);
 116         mdelay(50);
 117 }
 118
 119 static struct vsc7385_platform_data pb44_vsc7395_data = {
 120         .reset          = pb44_vsc7395_reset,
 121         .ucode_name     = "vsc7395_ucode_pb44.bin",
 122         .mac_cfg = {
 123                 .tx_ipg         = 6,
 124                 .bit2           = 1,
 125                 .clk_sel        = 0,
 126         },
 127 };
 128
 129 static struct spi_board_info pb44_spi_info[] = {
 130         {
 131                 .bus_num        = 0,
 132                 .chip_select    = 0,
 133                 .max_speed_hz   = 25000000,
 134                 .modalias       = "m25p80",
 135         }, {
 136                 .bus_num        = 0,
 137                 .chip_select    = 1,
 138                 .max_speed_hz   = 25000000,
 139                 .modalias       = "spi-vsc7385",
 140                 .platform_data  = &pb44_vsc7395_data,
 141                 .controller_data = (void *) PB44_GPIO_VSC7395_CS,
 142         },
 143 };
 144
 145 static struct resource pb44_spi_resources[] = {
 146         [0] = {
 147                 .start  = AR71XX_SPI_BASE,
 148                 .end    = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
 149                 .flags  = IORESOURCE_MEM,
 150         },
 151 };
 152
 153 static struct ar71xx_spi_platform_data pb44_spi_data = {
 154         .bus_num                = 0,
 155         .num_chipselect         = 2,
 156 };
 157
 158 static struct platform_device pb44_spi_device = {
 159         .name           = "pb44-spi",
 160         .id             = -1,
 161         .resource       = pb44_spi_resources,
 162         .num_resources  = ARRAY_SIZE(pb44_spi_resources),
 163         .dev = {
 164                 .platform_data = &pb44_spi_data,
 165         },
 166 };
 167
 168 #define PB44_WAN_PHYMASK        BIT(0)
 169 #define PB44_LAN_PHYMASK        0
 170 #define PB44_MDIO_PHYMASK       (PB44_LAN_PHYMASK | PB44_WAN_PHYMASK)
 171
 172 static void __init pb44_init(void)
 173 {
 174         ar71xx_add_device_mdio(~PB44_MDIO_PHYMASK);
 175
 176         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 177         ar71xx_eth0_data.phy_mask = PB44_WAN_PHYMASK;
 178
 179         ar71xx_add_device_eth(0);
 180
 181         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 182         ar71xx_eth1_data.phy_mask = PB44_LAN_PHYMASK;
 183         ar71xx_eth1_data.speed = SPEED_1000;
 184         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 185         ar71xx_eth1_pll_data.pll_1000 = 0x110000;
 186
 187         ar71xx_add_device_eth(1);
 188
 189         ar71xx_add_device_usb();
 190
 191         pb42_pci_init();
 192
 193         i2c_register_board_info(0, pb44_i2c_board_info,
 194                                 ARRAY_SIZE(pb44_i2c_board_info));
 195
 196         platform_device_register(&pb44_i2c_gpio_device);
 197
 198         spi_register_board_info(pb44_spi_info, ARRAY_SIZE(pb44_spi_info));
 199         platform_device_register(&pb44_spi_device);
 200
 201         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
 202                                     pb44_leds_gpio);
 203
 204         ar71xx_add_device_gpio_buttons(-1, 20, ARRAY_SIZE(pb44_gpio_buttons),
 205                                        pb44_gpio_buttons);
 206 }
 207
 208 MIPS_MACHINE(AR71XX_MACH_PB44, "Atheros PB44", pb44_init);