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/platform_device.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/spi/flash.h>
  17 #include <linux/i2c.h>
  18 #include <linux/i2c-gpio.h>
  19 #include <linux/i2c/pcf857x.h>
  20
  21 #include <asm/mips_machine.h>
  22 #include <asm/mach-ar71xx/ar71xx.h>
  23 #include <asm/mach-ar71xx/pci.h>
  24
  25 #include "devices.h"
  26
  27 #define PB44_PCF8757_VSC7385_CS 0
  28 #define PB44_PCF8757_STEREO_CS  1
  29 #define PB44_PCF8757_SLIC_CS0   2
  30 #define PB44_PCF8757_SLIC_TEST  3
  31 #define PB44_PCF8757_SLIC_INT0  4
  32 #define PB44_PCF8757_SLIC_INT1  5
  33 #define PB44_PCF8757_SW_RESET   6
  34 #define PB44_PCF8757_SW_JUMP    8
  35 #define PB44_PCF8757_LED_JUMP1  9
  36 #define PB44_PCF8757_LED_JUMP2  10
  37 #define PB44_PCF8757_TP24       11
  38 #define PB44_PCF8757_TP25       12
  39 #define PB44_PCF8757_TP26       13
  40 #define PB44_PCF8757_TP27       14
  41 #define PB44_PCF8757_TP28       15
  42
  43 #define PB44_GPIO_I2C_SCL       0
  44 #define PB44_GPIO_I2C_SDA       1
  45
  46 #define PB44_GPIO_EXP_BASE      16
  47 #define PB44_GPIO_SW_RESET      (PB44_GPIO_EXP_BASE + PB44_PCF8757_SW_RESET)
  48 #define PB44_GPIO_SW_JUMP       (PB44_GPIO_EXP_BASE + PB44_PCF8757_SW_JUMP)
  49 #define PB44_GPIO_LED_JUMP1     (PB44_GPIO_EXP_BASE + PB44_PCF8757_LED_JUMP1)
  50 #define PB44_GPIO_LED_JUMP2     (PB44_GPIO_EXP_BASE + PB44_PCF8757_LED_JUMP2)
  51
  52 static struct spi_board_info pb44_spi_info[] = {
  53         {
  54                 .bus_num        = 0,
  55                 .chip_select    = 0,
  56                 .max_speed_hz   = 25000000,
  57                 .modalias       = "m25p80",
  58         }
  59 };
  60
  61 static struct ar71xx_pci_irq pb44_pci_irqs[] __initdata = {
  62         {
  63                 .slot   = 0,
  64                 .pin    = 1,
  65                 .irq    = AR71XX_PCI_IRQ_DEV0,
  66         }, {
  67                 .slot   = 1,
  68                 .pin    = 1,
  69                 .irq    = AR71XX_PCI_IRQ_DEV1,
  70         }, {
  71                 .slot   = 2,
  72                 .pin    = 1,
  73                 .irq    = AR71XX_PCI_IRQ_DEV2,
  74         }
  75 };
  76
  77 static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
  78         .sda_pin        = PB44_GPIO_I2C_SDA,
  79         .scl_pin        = PB44_GPIO_I2C_SCL,
  80 };
  81
  82 static struct platform_device pb44_i2c_gpio_device = {
  83         .name           = "i2c-gpio",
  84         .id             = 0,
  85         .dev = {
  86                 .platform_data  = &pb44_i2c_gpio_data,
  87         }
  88 };
  89
  90 static struct pcf857x_platform_data pb44_pcf857x_data = {
  91         .gpio_base      = PB44_GPIO_EXP_BASE,
  92 };
  93
  94 static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
  95         {
  96                 I2C_BOARD_INFO("pcf8575", 0x20),
  97                 .platform_data  = &pb44_pcf857x_data,
  98         },
  99 };
 100
 101 static struct gpio_led pb44_leds_gpio[] __initdata = {
 102         {
 103                 .name           = "pb44:amber:jump1",
 104                 .gpio           = PB44_GPIO_LED_JUMP1,
 105                 .active_low     = 1,
 106         }, {
 107                 .name           = "pb44:green:jump2",
 108                 .gpio           = PB44_GPIO_LED_JUMP2,
 109                 .active_low     = 1,
 110         },
 111 };
 112
 113 static struct gpio_button pb44_gpio_buttons[] __initdata = {
 114         {
 115                 .desc           = "soft_reset",
 116                 .type           = EV_KEY,
 117                 .code           = BTN_0,
 118                 .threshold      = 5,
 119                 .gpio           = PB44_GPIO_SW_RESET,
 120                 .active_low     = 1,
 121         } , {
 122                 .desc           = "jumpstart",
 123                 .type           = EV_KEY,
 124                 .code           = BTN_1,
 125                 .threshold      = 5,
 126                 .gpio           = PB44_GPIO_SW_JUMP,
 127                 .active_low     = 1,
 128         }
 129 };
 130
 131 #define PB44_WAN_PHYMASK        BIT(0)
 132 #define PB44_LAN_PHYMASK        0
 133 #define PB44_MDIO_PHYMASK       (PB44_LAN_PHYMASK | PB44_WAN_PHYMASK)
 134
 135 static void __init pb44_init(void)
 136 {
 137         ar71xx_add_device_spi(NULL, pb44_spi_info,
 138                                 ARRAY_SIZE(pb44_spi_info));
 139
 140         ar71xx_add_device_mdio(~PB44_MDIO_PHYMASK);
 141
 142         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 143         ar71xx_eth0_data.phy_mask = PB44_WAN_PHYMASK;
 144
 145         ar71xx_add_device_eth(0);
 146
 147         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 148         ar71xx_eth1_data.phy_mask = PB44_LAN_PHYMASK;
 149         ar71xx_eth1_data.speed = SPEED_1000;
 150         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 151
 152         ar71xx_add_device_eth(1);
 153
 154         ar71xx_add_device_usb();
 155
 156         ar71xx_pci_init(ARRAY_SIZE(pb44_pci_irqs), pb44_pci_irqs);
 157
 158         i2c_register_board_info(0, pb44_i2c_board_info,
 159                                 ARRAY_SIZE(pb44_i2c_board_info));
 160
 161         platform_device_register(&pb44_i2c_gpio_device);
 162
 163         ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
 164                                     pb44_leds_gpio);
 165
 166         ar71xx_add_device_gpio_buttons(-1, 20, ARRAY_SIZE(pb44_gpio_buttons),
 167                                        pb44_gpio_buttons);
 168 }
 169
 170 MIPS_MACHINE(AR71XX_MACH_PB44, "Atheros PB44", pb44_init);