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linux-stable-rt/arch/arm/mach-orion5x/d2net-setup.c

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/*
* arch/arm/mach-orion5x/d2net-setup.c
*
* LaCie d2Network and Big Disk Network NAS setup
*
* Copyright (C) 2009 Simon Guinot <sguinot@lacie.com>
*
* 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/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/mv643xx_eth.h>
#include <linux/leds.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/ata_platform.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <mach/orion5x.h>
#include "common.h"
#include "mpp.h"
/*****************************************************************************
* LaCie d2 Network Info
****************************************************************************/
/*
* 512KB NOR flash Device bus boot chip select
*/
#define D2NET_NOR_BOOT_BASE 0xfff80000
#define D2NET_NOR_BOOT_SIZE SZ_512K
/*****************************************************************************
* 512KB NOR Flash on Boot Device
****************************************************************************/
/*
* TODO: Check write support on flash MX29LV400CBTC-70G
*/
static struct mtd_partition d2net_partitions[] = {
{
.name = "Full512kb",
.size = MTDPART_SIZ_FULL,
.offset = 0,
.mask_flags = MTD_WRITEABLE,
},
};
static struct physmap_flash_data d2net_nor_flash_data = {
.width = 1,
.parts = d2net_partitions,
.nr_parts = ARRAY_SIZE(d2net_partitions),
};
static struct resource d2net_nor_flash_resource = {
.flags = IORESOURCE_MEM,
.start = D2NET_NOR_BOOT_BASE,
.end = D2NET_NOR_BOOT_BASE
+ D2NET_NOR_BOOT_SIZE - 1,
};
static struct platform_device d2net_nor_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &d2net_nor_flash_data,
},
.num_resources = 1,
.resource = &d2net_nor_flash_resource,
};
/*****************************************************************************
* Ethernet
****************************************************************************/
static struct mv643xx_eth_platform_data d2net_eth_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};
/*****************************************************************************
* I2C devices
****************************************************************************/
/*
* i2c addr | chip | description
* 0x32 | Ricoh 5C372b | RTC
* 0x3e | GMT G762 | PWM fan controller
* 0x50 | HT24LC08 | eeprom (1kB)
*
* TODO: Add G762 support to the g760a driver.
*/
static struct i2c_board_info __initdata d2net_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372b", 0x32),
}, {
I2C_BOARD_INFO("24c08", 0x50),
},
};
/*****************************************************************************
* SATA
****************************************************************************/
static struct mv_sata_platform_data d2net_sata_data = {
.n_ports = 2,
};
#define D2NET_GPIO_SATA0_POWER 3
#define D2NET_GPIO_SATA1_POWER 12
static void __init d2net_sata_power_init(void)
{
int err;
err = gpio_request(D2NET_GPIO_SATA0_POWER, "SATA0 power");
if (err == 0) {
err = gpio_direction_output(D2NET_GPIO_SATA0_POWER, 1);
if (err)
gpio_free(D2NET_GPIO_SATA0_POWER);
}
if (err)
pr_err("d2net: failed to configure SATA0 power GPIO\n");
err = gpio_request(D2NET_GPIO_SATA1_POWER, "SATA1 power");
if (err == 0) {
err = gpio_direction_output(D2NET_GPIO_SATA1_POWER, 1);
if (err)
gpio_free(D2NET_GPIO_SATA1_POWER);
}
if (err)
pr_err("d2net: failed to configure SATA1 power GPIO\n");
}
/*****************************************************************************
* GPIO LED's
****************************************************************************/
/*
* The blue front LED is wired to the CPLD and can blink in relation with the
* SATA activity.
*
* The following array detail the different LED registers and the combination
* of their possible values:
*
* led_off | blink_ctrl | SATA active | LED state
* | | |
* 1 | x | x | off
* 0 | 0 | 0 | off
* 0 | 1 | 0 | blink (rate 300ms)
* 0 | x | 1 | on
*
* Notes: The blue and the red front LED's can't be on at the same time.
* Red LED have priority.
*/
#define D2NET_GPIO_RED_LED 6
#define D2NET_GPIO_BLUE_LED_BLINK_CTRL 16
#define D2NET_GPIO_BLUE_LED_OFF 23
static struct gpio_led d2net_leds[] = {
{
.name = "d2net:blue:sata",
.default_trigger = "default-on",
.gpio = D2NET_GPIO_BLUE_LED_OFF,
.active_low = 1,
},
{
.name = "d2net:red:fail",
.gpio = D2NET_GPIO_RED_LED,
},
};
static struct gpio_led_platform_data d2net_led_data = {
.num_leds = ARRAY_SIZE(d2net_leds),
.leds = d2net_leds,
};
static struct platform_device d2net_gpio_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &d2net_led_data,
},
};
static void __init d2net_gpio_leds_init(void)
{
int err;
/* Configure GPIO over MPP max number. */
orion_gpio_set_valid(D2NET_GPIO_BLUE_LED_OFF, 1);
/* Configure register blink_ctrl to allow SATA activity LED blinking. */
err = gpio_request(D2NET_GPIO_BLUE_LED_BLINK_CTRL, "blue LED blink");
if (err == 0) {
err = gpio_direction_output(D2NET_GPIO_BLUE_LED_BLINK_CTRL, 1);
if (err)
gpio_free(D2NET_GPIO_BLUE_LED_BLINK_CTRL);
}
if (err)
pr_err("d2net: failed to configure blue LED blink GPIO\n");
platform_device_register(&d2net_gpio_leds);
}
/****************************************************************************
* GPIO keys
****************************************************************************/
#define D2NET_GPIO_PUSH_BUTTON 18
#define D2NET_GPIO_POWER_SWITCH_ON 8
#define D2NET_GPIO_POWER_SWITCH_OFF 9
#define D2NET_SWITCH_POWER_ON 0x1
#define D2NET_SWITCH_POWER_OFF 0x2
static struct gpio_keys_button d2net_buttons[] = {
{
.type = EV_SW,
.code = D2NET_SWITCH_POWER_OFF,
.gpio = D2NET_GPIO_POWER_SWITCH_OFF,
.desc = "Power rocker switch (auto|off)",
.active_low = 0,
},
{
.type = EV_SW,
.code = D2NET_SWITCH_POWER_ON,
.gpio = D2NET_GPIO_POWER_SWITCH_ON,
.desc = "Power rocker switch (on|auto)",
.active_low = 0,
},
{
.type = EV_KEY,
.code = KEY_POWER,
.gpio = D2NET_GPIO_PUSH_BUTTON,
.desc = "Front Push Button",
.active_low = 0,
},
};
static struct gpio_keys_platform_data d2net_button_data = {
.buttons = d2net_buttons,
.nbuttons = ARRAY_SIZE(d2net_buttons),
};
static struct platform_device d2net_gpio_buttons = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &d2net_button_data,
},
};
/*****************************************************************************
* General Setup
****************************************************************************/
static unsigned int d2net_mpp_modes[] __initdata = {
MPP0_GPIO, /* Board ID (bit 0) */
MPP1_GPIO, /* Board ID (bit 1) */
MPP2_GPIO, /* Board ID (bit 2) */
MPP3_GPIO, /* SATA 0 power */
MPP4_UNUSED,
MPP5_GPIO, /* Fan fail detection */
MPP6_GPIO, /* Red front LED */
MPP7_UNUSED,
MPP8_GPIO, /* Rear power switch (on|auto) */
MPP9_GPIO, /* Rear power switch (auto|off) */
MPP10_UNUSED,
MPP11_UNUSED,
MPP12_GPIO, /* SATA 1 power */
MPP13_UNUSED,
MPP14_SATA_LED, /* SATA 0 active */
MPP15_SATA_LED, /* SATA 1 active */
MPP16_GPIO, /* Blue front LED blink control */
MPP17_UNUSED,
MPP18_GPIO, /* Front button (0 = Released, 1 = Pushed ) */
MPP19_UNUSED,
0,
/* 22: USB port 1 fuse (0 = Fail, 1 = Ok) */
/* 23: Blue front LED off */
/* 24: Inhibit board power off (0 = Disabled, 1 = Enabled) */
};
#define D2NET_GPIO_INHIBIT_POWER_OFF 24
static void __init d2net_init(void)
{
/*
* Setup basic Orion functions. Need to be called early.
*/
orion5x_init();
orion5x_mpp_conf(d2net_mpp_modes);
/*
* Configure peripherals.
*/
orion5x_ehci0_init();
orion5x_eth_init(&d2net_eth_data);
orion5x_i2c_init();
orion5x_uart0_init();
d2net_sata_power_init();
orion5x_sata_init(&d2net_sata_data);
orion5x_setup_dev_boot_win(D2NET_NOR_BOOT_BASE,
D2NET_NOR_BOOT_SIZE);
platform_device_register(&d2net_nor_flash);
platform_device_register(&d2net_gpio_buttons);
d2net_gpio_leds_init();
pr_notice("d2net: Flash write are not yet supported.\n");
i2c_register_board_info(0, d2net_i2c_devices,
ARRAY_SIZE(d2net_i2c_devices));
orion_gpio_set_valid(D2NET_GPIO_INHIBIT_POWER_OFF, 1);
}
/* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
#ifdef CONFIG_MACH_D2NET
MACHINE_START(D2NET, "LaCie d2 Network")
.atag_offset = 0x100,
.init_machine = d2net_init,
.map_io = orion5x_map_io,
.init_early = orion5x_init_early,
.init_irq = orion5x_init_irq,
.timer = &orion5x_timer,
.fixup = tag_fixup_mem32,
MACHINE_END
#endif
#ifdef CONFIG_MACH_BIGDISK
MACHINE_START(BIGDISK, "LaCie Big Disk Network")
.atag_offset = 0x100,
.init_machine = d2net_init,
.map_io = orion5x_map_io,
.init_early = orion5x_init_early,
.init_irq = orion5x_init_irq,
.timer = &orion5x_timer,
.fixup = tag_fixup_mem32,
MACHINE_END
#endif
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