- 根目录:
- arch
- arm
- mach-orion5x
- net2big-setup.c
/*
* arch/arm/mach-orion5x/net2big-setup.c
*
* LaCie 2Big 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/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 <linux/delay.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/orion5x.h>
#include "common.h"
#include "mpp.h"
/*****************************************************************************
* LaCie 2Big Network Info
****************************************************************************/
/*
* 512KB NOR flash Device bus boot chip select
*/
#define NET2BIG_NOR_BOOT_BASE 0xfff80000
#define NET2BIG_NOR_BOOT_SIZE SZ_512K
/*****************************************************************************
* 512KB NOR Flash on Boot Device
****************************************************************************/
/*
* TODO: Check write support on flash MX29LV400CBTC-70G
*/
static struct mtd_partition net2big_partitions[] = {
{
.name = "Full512kb",
.size = MTDPART_SIZ_FULL,
.offset = 0x00000000,
.mask_flags = MTD_WRITEABLE,
},
};
static struct physmap_flash_data net2big_nor_flash_data = {
.width = 1,
.parts = net2big_partitions,
.nr_parts = ARRAY_SIZE(net2big_partitions),
};
static struct resource net2big_nor_flash_resource = {
.flags = IORESOURCE_MEM,
.start = NET2BIG_NOR_BOOT_BASE,
.end = NET2BIG_NOR_BOOT_BASE
+ NET2BIG_NOR_BOOT_SIZE - 1,
};
static struct platform_device net2big_nor_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &net2big_nor_flash_data,
},
.num_resources = 1,
.resource = &net2big_nor_flash_resource,
};
/*****************************************************************************
* Ethernet
****************************************************************************/
static struct mv643xx_eth_platform_data net2big_eth_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};
/*****************************************************************************
* I2C devices
****************************************************************************/
/*
* i2c addr | chip | description
* 0x32 | Ricoh 5C372b | RTC
* 0x50 | HT24LC08 | eeprom (1kB)
*/
static struct i2c_board_info __initdata net2big_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372b", 0x32),
}, {
I2C_BOARD_INFO("24c08", 0x50),
},
};
/*****************************************************************************
* SATA
****************************************************************************/
static struct mv_sata_platform_data net2big_sata_data = {
.n_ports = 2,
};
#define NET2BIG_GPIO_SATA_POWER_REQ 19
#define NET2BIG_GPIO_SATA0_POWER 23
#define NET2BIG_GPIO_SATA1_POWER 25
static void __init net2big_sata_power_init(void)
{
int err;
/* Configure GPIOs over MPP max number. */
orion_gpio_set_valid(NET2BIG_GPIO_SATA0_POWER, 1);
orion_gpio_set_valid(NET2BIG_GPIO_SATA1_POWER, 1);
err = gpio_request(NET2BIG_GPIO_SATA0_POWER, "SATA0 power status");
if (err == 0) {
err = gpio_direction_input(NET2BIG_GPIO_SATA0_POWER);
if (err)
gpio_free(NET2BIG_GPIO_SATA0_POWER);
}
if (err) {
pr_err("net2big: failed to setup SATA0 power GPIO\n");
return;
}
err = gpio_request(NET2BIG_GPIO_SATA1_POWER, "SATA1 power status");
if (err == 0) {
err = gpio_direction_input(NET2BIG_GPIO_SATA1_POWER);
if (err)
gpio_free(NET2BIG_GPIO_SATA1_POWER);
}
if (err) {
pr_err("net2big: failed to setup SATA1 power GPIO\n");
goto err_free_1;
}
err = gpio_request(NET2BIG_GPIO_SATA_POWER_REQ, "SATA power request");
if (err == 0) {
err = gpio_direction_output(NET2BIG_GPIO_SATA_POWER_REQ, 0);
if (err)
gpio_free(NET2BIG_GPIO_SATA_POWER_REQ);
}
if (err) {
pr_err("net2big: failed to setup SATA power request GPIO\n");
goto err_free_2;
}
if (gpio_get_value(NET2BIG_GPIO_SATA0_POWER) &&
gpio_get_value(NET2BIG_GPIO_SATA1_POWER)) {
return;
}
/*
* SATA power up on both disk is done by pulling high the CPLD power
* request line. The 300ms delay is related to the CPLD clock and is
* needed to be sure that the CPLD has take into account the low line
* status.
*/
msleep(300);
gpio_set_value(NET2BIG_GPIO_SATA_POWER_REQ, 1);
pr_info("net2big: power up SATA hard disks\n");
return;
err_free_2:
gpio_free(NET2BIG_GPIO_SATA1_POWER);
err_free_1:
gpio_free(NET2BIG_GPIO_SATA0_POWER);
return;
}
/*****************************************************************************
* GPIO LEDs
****************************************************************************/
/*
* The power front LEDs (blue and red) and SATA red LEDs are controlled via a
* single GPIO line and are compatible with the leds-gpio driver.
*
* The SATA blue LEDs have some hardware blink capabilities which are detailed
* in the following array:
*
* SATAx blue LED | SATAx activity | LED state
* | |
* 0 | 0 | blink (rate 300ms)
* 1 | 0 | off
* ? | 1 | on
*
* Notes: The blue and the red front LED's can't be on at the same time.
* Blue LED have priority.
*/
#define NET2BIG_GPIO_PWR_RED_LED 6
#define NET2BIG_GPIO_PWR_BLUE_LED 16
#define NET2BIG_GPIO_PWR_LED_BLINK_STOP 7
#define NET2BIG_GPIO_SATA0_RED_LED 11
#define NET2BIG_GPIO_SATA1_RED_LED 10
#define NET2BIG_GPIO_SATA0_BLUE_LED 17
#define NET2BIG_GPIO_SATA1_BLUE_LED 13
static struct gpio_led net2big_leds[] = {
{
.name = "net2big:red:power",
.gpio = NET2BIG_GPIO_PWR_RED_LED,
},
{
.name = "net2big:blue:power",
.gpio = NET2BIG_GPIO_PWR_BLUE_LED,
},
{
.name = "net2big:red:sata0",
.gpio = NET2BIG_GPIO_SATA0_RED_LED,
},
{
.name = "net2big:red:sata1",
.gpio = NET2BIG_GPIO_SATA1_RED_LED,
},
};
static struct gpio_led_platform_data net2big_led_data = {
.num_leds = ARRAY_SIZE(net2big_leds),
.leds = net2big_leds,
};
static struct platform_device net2big_gpio_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &net2big_led_data,
},
};
static void __init net2big_gpio_leds_init(void)
{
int err;
/* Stop initial CPLD slow red/blue blinking on power LED. */
err = gpio_request(NET2BIG_GPIO_PWR_LED_BLINK_STOP,
"Power LED blink stop");
if (err == 0) {
err = gpio_direction_output(NET2BIG_GPIO_PWR_LED_BLINK_STOP, 1);
if (err)
gpio_free(NET2BIG_GPIO_PWR_LED_BLINK_STOP);
}
if (err)
pr_err("net2big: failed to setup power LED blink GPIO\n");
/*
* Configure SATA0 and SATA1 blue LEDs to blink in relation with the
* hard disk activity.
*/
err = gpio_request(NET2BIG_GPIO_SATA0_BLUE_LED,
"SATA0 blue LED control");
if (err == 0) {
err = gpio_direction_output(NET2BIG_GPIO_SATA0_BLUE_LED, 1);
if (err)
gpio_free(NET2BIG_GPIO_SATA0_BLUE_LED);
}
if (err)
pr_err("net2big: failed to setup SATA0 blue LED GPIO\n");
err = gpio_request(NET2BIG_GPIO_SATA1_BLUE_LED,
"SATA1 blue LED control");
if (err == 0) {
err = gpio_direction_output(NET2BIG_GPIO_SATA1_BLUE_LED, 1);
if (err)
gpio_free(NET2BIG_GPIO_SATA1_BLUE_LED);
}
if (err)
pr_err("net2big: failed to setup SATA1 blue LED GPIO\n");
platform_device_register(&net2big_gpio_leds);
}
/****************************************************************************
* GPIO keys
****************************************************************************/
#define NET2BIG_GPIO_PUSH_BUTTON 18
#define NET2BIG_GPIO_POWER_SWITCH_ON 8
#define NET2BIG_GPIO_POWER_SWITCH_OFF 9
#define NET2BIG_SWITCH_POWER_ON 0x1
#define NET2BIG_SWITCH_POWER_OFF 0x2
static struct gpio_keys_button net2big_buttons[] = {
{
.type = EV_SW,
.code = NET2BIG_SWITCH_POWER_OFF,
.gpio = NET2BIG_GPIO_POWER_SWITCH_OFF,
.desc = "Power rocker switch (auto|off)",
.active_low = 0,
},
{
.type = EV_SW,
.code = NET2BIG_SWITCH_POWER_ON,
.gpio = NET2BIG_GPIO_POWER_SWITCH_ON,
.desc = "Power rocker switch (on|auto)",
.active_low = 0,
},
{
.type = EV_KEY,
.code = KEY_POWER,
.gpio = NET2BIG_GPIO_PUSH_BUTTON,
.desc = "Front Push Button",
.active_low = 0,
},
};
static struct gpio_keys_platform_data net2big_button_data = {
.buttons = net2big_buttons,
.nbuttons = ARRAY_SIZE(net2big_buttons),
};
static struct platform_device net2big_gpio_buttons = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &net2big_button_data,
},
};
/*****************************************************************************
* General Setup
****************************************************************************/
static unsigned int net2big_mpp_modes[] __initdata = {
MPP0_GPIO, /* Raid mode (bit 0) */
MPP1_GPIO, /* USB port 2 fuse (0 = Fail, 1 = Ok) */
MPP2_GPIO, /* Raid mode (bit 1) */
MPP3_GPIO, /* Board ID (bit 0) */
MPP4_GPIO, /* Fan activity (0 = Off, 1 = On) */
MPP5_GPIO, /* Fan fail detection */
MPP6_GPIO, /* Red front LED (0 = Off, 1 = On) */
MPP7_GPIO, /* Disable initial blinking on front LED */
MPP8_GPIO, /* Rear power switch (on|auto) */
MPP9_GPIO, /* Rear power switch (auto|off) */
MPP10_GPIO, /* SATA 1 red LED (0 = Off, 1 = On) */
MPP11_GPIO, /* SATA 0 red LED (0 = Off, 1 = On) */
MPP12_GPIO, /* Board ID (bit 1) */
MPP13_GPIO, /* SATA 1 blue LED blink control */
MPP14_SATA_LED,
MPP15_SATA_LED,
MPP16_GPIO, /* Blue front LED control */
MPP17_GPIO, /* SATA 0 blue LED blink control */
MPP18_GPIO, /* Front button (0 = Released, 1 = Pushed ) */
MPP19_GPIO, /* SATA{0,1} power On/Off request */
0,
/* 22: USB port 1 fuse (0 = Fail, 1 = Ok) */
/* 23: SATA 0 power status */
/* 24: Board power off */
/* 25: SATA 1 power status */
};
#define NET2BIG_GPIO_POWER_OFF 24
static void net2big_power_off(void)
{
gpio_set_value(NET2BIG_GPIO_POWER_OFF, 1);
}
static void __init net2big_init(void)
{
/*
* Setup basic Orion functions. Need to be called early.
*/
orion5x_init();
orion5x_mpp_conf(net2big_mpp_modes);
/*
* Configure peripherals.
*/
orion5x_ehci0_init();
orion5x_ehci1_init();
orion5x_eth_init(&net2big_eth_data);
orion5x_i2c_init();
orion5x_uart0_init();
orion5x_xor_init();
net2big_sata_power_init();
orion5x_sata_init(&net2big_sata_data);
orion5x_setup_dev_boot_win(NET2BIG_NOR_BOOT_BASE,
NET2BIG_NOR_BOOT_SIZE);
platform_device_register(&net2big_nor_flash);
platform_device_register(&net2big_gpio_buttons);
net2big_gpio_leds_init();
i2c_register_board_info(0, net2big_i2c_devices,
ARRAY_SIZE(net2big_i2c_devices));
orion_gpio_set_valid(NET2BIG_GPIO_POWER_OFF, 1);
if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
gpio_direction_output(NET2BIG_GPIO_POWER_OFF, 0) == 0)
pm_power_off = net2big_power_off;
else
pr_err("net2big: failed to configure power-off GPIO\n");
pr_notice("net2big: Flash writing is not yet supported.\n");
}
/* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
MACHINE_START(NET2BIG, "LaCie 2Big Network")
.atag_offset = 0x100,
.init_machine = net2big_init,
.map_io = orion5x_map_io,
.init_early = orion5x_init_early,
.init_irq = orion5x_init_irq,
.timer = &orion5x_timer,
.fixup = tag_fixup_mem32,
.restart = orion5x_restart,
MACHINE_END