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