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/*
* Copyright 2012 (C), Jamie Lentin <jm@lentin.co.uk>
*
* arch/arm/mach-kirkwood/board-dnskw.c
*
* D-link DNS-320 & DNS-325 NAS Init for drivers not converted to
* flattened device tree yet.
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <linux/mv643xx_eth.h>
#include <linux/of.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/gpio-fan.h>
#include <linux/leds.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/kirkwood.h>
#include <mach/bridge-regs.h>
#include "common.h"
#include "mpp.h"
static struct mv643xx_eth_platform_data dnskw_ge00_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};
static unsigned int dnskw_mpp_config[] __initdata = {
MPP13_UART1_TXD, /* Custom ... */
MPP14_UART1_RXD, /* ... Controller (DNS-320 only) */
MPP20_SATA1_ACTn, /* LED: White Right HDD */
MPP21_SATA0_ACTn, /* LED: White Left HDD */
MPP24_GPIO,
MPP25_GPIO,
MPP26_GPIO, /* LED: Power */
MPP27_GPIO, /* LED: Red Right HDD */
MPP28_GPIO, /* LED: Red Left HDD */
MPP29_GPIO, /* LED: Red USB (DNS-325 only) */
MPP30_GPIO,
MPP31_GPIO,
MPP32_GPIO,
MPP33_GPO,
MPP34_GPIO, /* Button: Front power */
MPP35_GPIO, /* LED: Red USB (DNS-320 only) */
MPP36_GPIO, /* Power: Turn off board */
MPP37_GPIO, /* Power: Turn back on after power failure */
MPP38_GPIO,
MPP39_GPIO, /* Power: SATA0 */
MPP40_GPIO, /* Power: SATA1 */
MPP41_GPIO, /* SATA0 present */
MPP42_GPIO, /* SATA1 present */
MPP43_GPIO, /* LED: White USB */
MPP44_GPIO, /* Fan: Tachometer Pin */
MPP45_GPIO, /* Fan: high speed */
MPP46_GPIO, /* Fan: low speed */
MPP47_GPIO, /* Button: Back unmount */
MPP48_GPIO, /* Button: Back reset */
MPP49_GPIO, /* Temp Alarm (DNS-325) Pin of U5 (DNS-320) */
0
};
static struct gpio_keys_button dnskw_button_pins[] = {
{
.code = KEY_POWER,
.gpio = 34,
.desc = "Power button",
.active_low = 1,
},
{
.code = KEY_EJECTCD,
.gpio = 47,
.desc = "USB unmount button",
.active_low = 1,
},
{
.code = KEY_RESTART,
.gpio = 48,
.desc = "Reset button",
.active_low = 1,
},
};
static struct gpio_keys_platform_data dnskw_button_data = {
.buttons = dnskw_button_pins,
.nbuttons = ARRAY_SIZE(dnskw_button_pins),
};
static struct platform_device dnskw_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &dnskw_button_data,
}
};
/* Fan: ADDA AD045HB-G73 40mm 6000rpm@5v */
static struct gpio_fan_speed dnskw_fan_speed[] = {
{ 0, 0 },
{ 3000, 1 },
{ 6000, 2 },
};
static unsigned dnskw_fan_pins[] = {46, 45};
static struct gpio_fan_platform_data dnskw_fan_data = {
.num_ctrl = ARRAY_SIZE(dnskw_fan_pins),
.ctrl = dnskw_fan_pins,
.num_speed = ARRAY_SIZE(dnskw_fan_speed),
.speed = dnskw_fan_speed,
};
static struct platform_device dnskw_fan_device = {
.name = "gpio-fan",
.id = -1,
.dev = {
.platform_data = &dnskw_fan_data,
},
};
static void dnskw_power_off(void)
{
gpio_set_value(36, 1);
}
/* Register any GPIO for output and set the value */
static void __init dnskw_gpio_register(unsigned gpio, char *name, int def)
{
if (gpio_request(gpio, name) == 0 &&
gpio_direction_output(gpio, 0) == 0) {
gpio_set_value(gpio, def);
if (gpio_export(gpio, 0) != 0)
pr_err("dnskw: Failed to export GPIO %s\n", name);
} else
pr_err("dnskw: Failed to register %s\n", name);
}
void __init dnskw_init(void)
{
kirkwood_mpp_conf(dnskw_mpp_config);
kirkwood_ehci_init();
kirkwood_ge00_init(&dnskw_ge00_data);
platform_device_register(&dnskw_button_device);
platform_device_register(&dnskw_fan_device);
/* Register power-off GPIO. */
if (gpio_request(36, "dnskw:power:off") == 0
&& gpio_direction_output(36, 0) == 0)
pm_power_off = dnskw_power_off;
else
pr_err("dnskw: failed to configure power-off GPIO\n");
/* Ensure power is supplied to both HDDs */
dnskw_gpio_register(39, "dnskw:power:sata0", 1);
dnskw_gpio_register(40, "dnskw:power:sata1", 1);
/* Set NAS to turn back on after a power failure */
dnskw_gpio_register(37, "dnskw:power:recover", 1);
}
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