arch/arm/mach-kirkwood/board-lsxl.c

   1 /*
   2  * Copyright 2012 (C), Michael Walle <michael@walle.cc>
   3  *
   4  * arch/arm/mach-kirkwood/board-lsxl.c
   5  *
   6  * Buffalo Linkstation LS-XHL and LS-CHLv2 init for drivers not
   7  * converted to flattened device tree yet.
   8  *
   9  * This file is licensed under the terms of the GNU General Public
  10  * License version 2.  This program is licensed "as is" without any
  11  * warranty of any kind, whether express or implied.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/mtd/partitions.h>
  18 #include <linux/ata_platform.h>
  19 #include <linux/spi/flash.h>
  20 #include <linux/spi/spi.h>
  21 #include <linux/mv643xx_eth.h>
  22 #include <linux/gpio.h>
  23 #include <linux/gpio-fan.h>
  24 #include <linux/input.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <mach/kirkwood.h>
  28 #include "common.h"
  29 #include "mpp.h"
  30
  31 static struct mv643xx_eth_platform_data lsxl_ge00_data = {
  32         .phy_addr       = MV643XX_ETH_PHY_ADDR(0),
  33 };
  34
  35 static struct mv643xx_eth_platform_data lsxl_ge01_data = {
  36         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
  37 };
  38
  39 static unsigned int lsxl_mpp_config[] __initdata = {
  40         MPP10_GPO,      /* HDD Power Enable */
  41         MPP11_GPIO,     /* USB Vbus Enable */
  42         MPP18_GPO,      /* FAN High Enable# */
  43         MPP19_GPO,      /* FAN Low Enable# */
  44         MPP36_GPIO,     /* Function Blue LED */
  45         MPP37_GPIO,     /* Alarm LED */
  46         MPP38_GPIO,     /* Info LED */
  47         MPP39_GPIO,     /* Power LED */
  48         MPP40_GPIO,     /* Fan Lock */
  49         MPP41_GPIO,     /* Function Button */
  50         MPP42_GPIO,     /* Power Switch */
  51         MPP43_GPIO,     /* Power Auto Switch */
  52         MPP48_GPIO,     /* Function Red LED */
  53         0
  54 };
  55
  56 #define LSXL_GPIO_FAN_HIGH      18
  57 #define LSXL_GPIO_FAN_LOW       19
  58 #define LSXL_GPIO_FAN_LOCK      40
  59
  60 static struct gpio_fan_alarm lsxl_alarm = {
  61         .gpio = LSXL_GPIO_FAN_LOCK,
  62 };
  63
  64 static struct gpio_fan_speed lsxl_speeds[] = {
  65         {
  66                 .rpm = 0,
  67                 .ctrl_val = 3,
  68         }, {
  69                 .rpm = 1500,
  70                 .ctrl_val = 1,
  71         }, {
  72                 .rpm = 3250,
  73                 .ctrl_val = 2,
  74         }, {
  75                 .rpm = 5000,
  76                 .ctrl_val = 0,
  77         }
  78 };
  79
  80 static int lsxl_gpio_list[] = {
  81         LSXL_GPIO_FAN_HIGH, LSXL_GPIO_FAN_LOW,
  82 };
  83
  84 static struct gpio_fan_platform_data lsxl_fan_data = {
  85         .num_ctrl = ARRAY_SIZE(lsxl_gpio_list),
  86         .ctrl = lsxl_gpio_list,
  87         .alarm = &lsxl_alarm,
  88         .num_speed = ARRAY_SIZE(lsxl_speeds),
  89         .speed = lsxl_speeds,
  90 };
  91
  92 static struct platform_device lsxl_fan_device = {
  93         .name = "gpio-fan",
  94         .id = -1,
  95         .num_resources = 0,
  96         .dev = {
  97                 .platform_data = &lsxl_fan_data,
  98         },
  99 };
 100
 101 /*
 102  * On the LS-XHL/LS-CHLv2, the shutdown process is following:
 103  * - Userland monitors key events until the power switch goes to off position
 104  * - The board reboots
 105  * - U-boot starts and goes into an idle mode waiting for the user
 106  *   to move the switch to ON position
 107  *
 108  */
 109 static void lsxl_power_off(void)
 110 {
 111         kirkwood_restart('h', NULL);
 112 }
 113
 114 #define LSXL_GPIO_HDD_POWER 10
 115 #define LSXL_GPIO_USB_POWER 11
 116
 117 void __init lsxl_init(void)
 118 {
 119         /*
 120          * Basic setup. Needs to be called early.
 121          */
 122         kirkwood_mpp_conf(lsxl_mpp_config);
 123
 124         /* usb and sata power on */
 125         gpio_set_value(LSXL_GPIO_USB_POWER, 1);
 126         gpio_set_value(LSXL_GPIO_HDD_POWER, 1);
 127
 128         kirkwood_ehci_init();
 129         kirkwood_ge00_init(&lsxl_ge00_data);
 130         kirkwood_ge01_init(&lsxl_ge01_data);
 131         platform_device_register(&lsxl_fan_device);
 132
 133         /* register power-off method */
 134         pm_power_off = lsxl_power_off;
 135 }