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_GPIO_I2C_SCL       0
  28 #define PB44_GPIO_I2C_SDA       1
  29
  30 #define PB44_GPIO_EXP_BASE      16
  31
  32 static struct spi_board_info pb44_spi_info[] = {
  33         {
  34                 .bus_num        = 0,
  35                 .chip_select    = 0,
  36                 .max_speed_hz   = 25000000,
  37                 .modalias       = "m25p80",
  38         }
  39 };
  40
  41 static struct ar71xx_pci_irq pb44_pci_irqs[] __initdata = {
  42         {
  43                 .slot   = 0,
  44                 .pin    = 1,
  45                 .irq    = AR71XX_PCI_IRQ_DEV0,
  46         }, {
  47                 .slot   = 1,
  48                 .pin    = 1,
  49                 .irq    = AR71XX_PCI_IRQ_DEV1,
  50         }, {
  51                 .slot   = 2,
  52                 .pin    = 1,
  53                 .irq    = AR71XX_PCI_IRQ_DEV2,
  54         }
  55 };
  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 #define PB44_WAN_PHYMASK        BIT(0)
  82 #define PB44_LAN_PHYMASK        0
  83 #define PB44_MDIO_PHYMASK       (PB44_LAN_PHYMASK | PB44_WAN_PHYMASK)
  84
  85 static void __init pb44_init(void)
  86 {
  87         ar71xx_add_device_spi(NULL, pb44_spi_info,
  88                                 ARRAY_SIZE(pb44_spi_info));
  89
  90         ar71xx_add_device_mdio(~PB44_MDIO_PHYMASK);
  91
  92         ar71xx_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
  93         ar71xx_eth0_data.phy_mask = PB44_WAN_PHYMASK;
  94
  95         ar71xx_add_device_eth(0);
  96
  97         ar71xx_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
  98         ar71xx_eth1_data.phy_mask = PB44_LAN_PHYMASK;
  99         ar71xx_eth1_data.speed = SPEED_1000;
 100         ar71xx_eth1_data.duplex = DUPLEX_FULL;
 101
 102         ar71xx_add_device_eth(1);
 103
 104         ar71xx_add_device_usb();
 105
 106         ar71xx_pci_init(ARRAY_SIZE(pb44_pci_irqs), pb44_pci_irqs);
 107
 108         i2c_register_board_info(0, pb44_i2c_board_info,
 109                                 ARRAY_SIZE(pb44_i2c_board_info));
 110
 111         platform_device_register(&pb44_i2c_gpio_device);
 112
 113         /* TODO: GPIO LEDs & buttons */
 114 }
 115
 116 MIPS_MACHINE(AR71XX_MACH_PB44, "Atheros PB44", pb44_init);