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Michael Walle4aff38a2012-07-17 07:25:55 +02001/*
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
31static struct mv643xx_eth_platform_data lsxl_ge00_data = {
32 .phy_addr = MV643XX_ETH_PHY_ADDR(0),
33};
34
35static struct mv643xx_eth_platform_data lsxl_ge01_data = {
36 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
37};
38
39static 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
60static struct gpio_fan_alarm lsxl_alarm = {
61 .gpio = LSXL_GPIO_FAN_LOCK,
62};
63
64static 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
80static int lsxl_gpio_list[] = {
81 LSXL_GPIO_FAN_HIGH, LSXL_GPIO_FAN_LOW,
82};
83
84static 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
92static 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 */
109static 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
117void __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}