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linux-next/arch/arm/mach-orion5x/dns323-setup.c
Martin Michlmayr f8e00530a0 [ARM] orion5x: Set links to solid on D-Link DNS-323 
Among other changes, commit b2a731aa ("D-link DNS-323 revision A1 power
LED") changed the default behaviour of the power LED from solid to
blinking.  This was done to match the original DNS-323 firmware which
blinks during the boot process and sets the LED to solid when booting
has completed.  However, the downside of this behaviour is that it
requires userland code to change the LED, even for those who don't
care about the behaviour of the original firmware.  Therefore, change
it to solid again and let those who care about the original behaviour
change the behaviour from userland.

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
2010-07-16 22:01:26 -04:00

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/*
* arch/arm/mach-orion5x/dns323-setup.c
*
* Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.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 <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <mach/orion5x.h>
#include "common.h"
#include "mpp.h"
#define DNS323_GPIO_LED_RIGHT_AMBER 1
#define DNS323_GPIO_LED_LEFT_AMBER 2
#define DNS323_GPIO_SYSTEM_UP 3
#define DNS323_GPIO_LED_POWER1 4
#define DNS323_GPIO_LED_POWER2 5
#define DNS323_GPIO_OVERTEMP 6
#define DNS323_GPIO_RTC 7
#define DNS323_GPIO_POWER_OFF 8
#define DNS323_GPIO_KEY_POWER 9
#define DNS323_GPIO_KEY_RESET 10
/****************************************************************************
* PCI setup
*/
static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
int irq;
/*
* Check for devices with hard-wired IRQs.
*/
irq = orion5x_pci_map_irq(dev, slot, pin);
if (irq != -1)
return irq;
return -1;
}
static struct hw_pci dns323_pci __initdata = {
.nr_controllers = 2,
.swizzle = pci_std_swizzle,
.setup = orion5x_pci_sys_setup,
.scan = orion5x_pci_sys_scan_bus,
.map_irq = dns323_pci_map_irq,
};
static int __init dns323_dev_id(void)
{
u32 dev, rev;
orion5x_pcie_id(&dev, &rev);
return dev;
}
static int __init dns323_pci_init(void)
{
/* The 5182 doesn't really use its PCI bus, and initialising PCI
* gets in the way of initialising the SATA controller.
*/
if (machine_is_dns323() && dns323_dev_id() != MV88F5182_DEV_ID)
pci_common_init(&dns323_pci);
return 0;
}
subsys_initcall(dns323_pci_init);
/****************************************************************************
* 8MiB NOR flash (Spansion S29GL064M90TFIR4)
*
* Layout as used by D-Link:
* 0x00000000-0x00010000 : "MTD1"
* 0x00010000-0x00020000 : "MTD2"
* 0x00020000-0x001a0000 : "Linux Kernel"
* 0x001a0000-0x007d0000 : "File System"
* 0x007d0000-0x00800000 : "u-boot"
*/
#define DNS323_NOR_BOOT_BASE 0xf4000000
#define DNS323_NOR_BOOT_SIZE SZ_8M
static struct mtd_partition dns323_partitions[] = {
{
.name = "MTD1",
.size = 0x00010000,
.offset = 0,
}, {
.name = "MTD2",
.size = 0x00010000,
.offset = 0x00010000,
}, {
.name = "Linux Kernel",
.size = 0x00180000,
.offset = 0x00020000,
}, {
.name = "File System",
.size = 0x00630000,
.offset = 0x001A0000,
}, {
.name = "u-boot",
.size = 0x00030000,
.offset = 0x007d0000,
},
};
static struct physmap_flash_data dns323_nor_flash_data = {
.width = 1,
.parts = dns323_partitions,
.nr_parts = ARRAY_SIZE(dns323_partitions)
};
static struct resource dns323_nor_flash_resource = {
.flags = IORESOURCE_MEM,
.start = DNS323_NOR_BOOT_BASE,
.end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
};
static struct platform_device dns323_nor_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &dns323_nor_flash_data,
},
.resource = &dns323_nor_flash_resource,
.num_resources = 1,
};
/****************************************************************************
* Ethernet
*/
static struct mv643xx_eth_platform_data dns323_eth_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};
/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
* functions be kept somewhere?
*/
static int __init dns323_parse_hex_nibble(char n)
{
if (n >= '0' && n <= '9')
return n - '0';
if (n >= 'A' && n <= 'F')
return n - 'A' + 10;
if (n >= 'a' && n <= 'f')
return n - 'a' + 10;
return -1;
}
static int __init dns323_parse_hex_byte(const char *b)
{
int hi;
int lo;
hi = dns323_parse_hex_nibble(b[0]);
lo = dns323_parse_hex_nibble(b[1]);
if (hi < 0 || lo < 0)
return -1;
return (hi << 4) | lo;
}
static int __init dns323_read_mac_addr(void)
{
u_int8_t addr[6];
int i;
char *mac_page;
/* MAC address is stored as a regular ol' string in /dev/mtdblock4
* (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
*/
mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024);
if (!mac_page)
return -ENOMEM;
/* Sanity check the string we're looking at */
for (i = 0; i < 5; i++) {
if (*(mac_page + (i * 3) + 2) != ':') {
goto error_fail;
}
}
for (i = 0; i < 6; i++) {
int byte;
byte = dns323_parse_hex_byte(mac_page + (i * 3));
if (byte < 0) {
goto error_fail;
}
addr[i] = byte;
}
iounmap(mac_page);
printk("DNS323: Found ethernet MAC address: ");
for (i = 0; i < 6; i++)
printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
memcpy(dns323_eth_data.mac_addr, addr, 6);
return 0;
error_fail:
iounmap(mac_page);
return -EINVAL;
}
/****************************************************************************
* GPIO LEDs (simple - doesn't use hardware blinking support)
*/
#define ORION_BLINK_HALF_PERIOD 100 /* ms */
static int dns323_gpio_blink_set(unsigned gpio, int state,
unsigned long *delay_on, unsigned long *delay_off)
{
if (delay_on && delay_off && !*delay_on && !*delay_off)
*delay_on = *delay_off = ORION_BLINK_HALF_PERIOD;
switch(state) {
case GPIO_LED_NO_BLINK_LOW:
case GPIO_LED_NO_BLINK_HIGH:
orion_gpio_set_blink(gpio, 0);
gpio_set_value(gpio, state);
break;
case GPIO_LED_BLINK:
orion_gpio_set_blink(gpio, 1);
}
return 0;
}
static struct gpio_led dns323_leds[] = {
{
.name = "power:blue",
.gpio = DNS323_GPIO_LED_POWER2,
.default_trigger = "default-on",
}, {
.name = "right:amber",
.gpio = DNS323_GPIO_LED_RIGHT_AMBER,
.active_low = 1,
}, {
.name = "left:amber",
.gpio = DNS323_GPIO_LED_LEFT_AMBER,
.active_low = 1,
},
};
static struct gpio_led_platform_data dns323_led_data = {
.num_leds = ARRAY_SIZE(dns323_leds),
.leds = dns323_leds,
.gpio_blink_set = dns323_gpio_blink_set,
};
static struct platform_device dns323_gpio_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &dns323_led_data,
},
};
/****************************************************************************
* GPIO Attached Keys
*/
static struct gpio_keys_button dns323_buttons[] = {
{
.code = KEY_RESTART,
.gpio = DNS323_GPIO_KEY_RESET,
.desc = "Reset Button",
.active_low = 1,
}, {
.code = KEY_POWER,
.gpio = DNS323_GPIO_KEY_POWER,
.desc = "Power Button",
.active_low = 1,
},
};
static struct gpio_keys_platform_data dns323_button_data = {
.buttons = dns323_buttons,
.nbuttons = ARRAY_SIZE(dns323_buttons),
};
static struct platform_device dns323_button_device = {
.name = "gpio-keys",
.id = -1,
.num_resources = 0,
.dev = {
.platform_data = &dns323_button_data,
},
};
/*****************************************************************************
* SATA
*/
static struct mv_sata_platform_data dns323_sata_data = {
.n_ports = 2,
};
/****************************************************************************
* General Setup
*/
static struct orion5x_mpp_mode dns323_mv88f5181_mpp_modes[] __initdata = {
{ 0, MPP_PCIE_RST_OUTn },
{ 1, MPP_GPIO }, /* right amber LED (sata ch0) */
{ 2, MPP_GPIO }, /* left amber LED (sata ch1) */
{ 3, MPP_UNUSED },
{ 4, MPP_GPIO }, /* power button LED */
{ 5, MPP_GPIO }, /* power button LED */
{ 6, MPP_GPIO }, /* GMT G751-2f overtemp */
{ 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */
{ 8, MPP_GPIO }, /* triggers power off */
{ 9, MPP_GPIO }, /* power button switch */
{ 10, MPP_GPIO }, /* reset button switch */
{ 11, MPP_UNUSED },
{ 12, MPP_UNUSED },
{ 13, MPP_UNUSED },
{ 14, MPP_UNUSED },
{ 15, MPP_UNUSED },
{ 16, MPP_UNUSED },
{ 17, MPP_UNUSED },
{ 18, MPP_UNUSED },
{ 19, MPP_UNUSED },
{ -1 },
};
static struct orion5x_mpp_mode dns323_mv88f5182_mpp_modes[] __initdata = {
{ 0, MPP_UNUSED },
{ 1, MPP_GPIO }, /* right amber LED (sata ch0) */
{ 2, MPP_GPIO }, /* left amber LED (sata ch1) */
{ 3, MPP_GPIO }, /* system up flag */
{ 4, MPP_GPIO }, /* power button LED */
{ 5, MPP_GPIO }, /* power button LED */
{ 6, MPP_GPIO }, /* GMT G751-2f overtemp */
{ 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */
{ 8, MPP_GPIO }, /* triggers power off */
{ 9, MPP_GPIO }, /* power button switch */
{ 10, MPP_GPIO }, /* reset button switch */
{ 11, MPP_UNUSED },
{ 12, MPP_SATA_LED },
{ 13, MPP_SATA_LED },
{ 14, MPP_SATA_LED },
{ 15, MPP_SATA_LED },
{ 16, MPP_UNUSED },
{ 17, MPP_UNUSED },
{ 18, MPP_UNUSED },
{ 19, MPP_UNUSED },
{ -1 },
};
/*
* On the DNS-323 the following devices are attached via I2C:
*
* i2c addr | chip | description
* 0x3e | GMT G760Af | fan speed PWM controller
* 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
* 0x68 | ST M41T80 | RTC w/ alarm
*/
static struct i2c_board_info __initdata dns323_i2c_devices[] = {
{
I2C_BOARD_INFO("g760a", 0x3e),
}, {
I2C_BOARD_INFO("lm75", 0x48),
}, {
I2C_BOARD_INFO("m41t80", 0x68),
},
};
/* DNS-323 rev. A specific power off method */
static void dns323a_power_off(void)
{
pr_info("%s: triggering power-off...\n", __func__);
gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
}
/* DNS-323 rev B specific power off method */
static void dns323b_power_off(void)
{
pr_info("%s: triggering power-off...\n", __func__);
/* Pin has to be changed to 1 and back to 0 to do actual power off. */
gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
mdelay(100);
gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
}
static void __init dns323_init(void)
{
/* Setup basic Orion functions. Need to be called early. */
orion5x_init();
/* Just to be tricky, the 5182 has a completely different
* set of MPP modes to the 5181.
*/
if (dns323_dev_id() == MV88F5182_DEV_ID)
orion5x_mpp_conf(dns323_mv88f5182_mpp_modes);
else {
orion5x_mpp_conf(dns323_mv88f5181_mpp_modes);
writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
}
/* setup flash mapping
* CS3 holds a 8 MB Spansion S29GL064M90TFIR4
*/
orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
platform_device_register(&dns323_nor_flash);
/* The 5181 power LED is active low and requires
* DNS323_GPIO_LED_POWER1 to also be low.
*/
if (dns323_dev_id() == MV88F5181_DEV_ID) {
dns323_leds[0].active_low = 1;
gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
}
platform_device_register(&dns323_gpio_leds);
platform_device_register(&dns323_button_device);
i2c_register_board_info(0, dns323_i2c_devices,
ARRAY_SIZE(dns323_i2c_devices));
/*
* Configure peripherals.
*/
if (dns323_read_mac_addr() < 0)
printk("DNS323: Failed to read MAC address\n");
orion5x_ehci0_init();
orion5x_eth_init(&dns323_eth_data);
orion5x_i2c_init();
orion5x_uart0_init();
/* The 5182 has its SATA controller on-chip, and needs its own little
* init routine.
*/
if (dns323_dev_id() == MV88F5182_DEV_ID)
orion5x_sata_init(&dns323_sata_data);
/* The 5182 has flag to indicate the system is up. Without this flag
* set, power LED will flash and cannot be controlled via leds-gpio.
*/
if (dns323_dev_id() == MV88F5182_DEV_ID)
gpio_set_value(DNS323_GPIO_SYSTEM_UP, 1);
/* Register dns323 specific power-off method */
if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
pr_err("DNS323: failed to setup power-off GPIO\n");
if (dns323_dev_id() == MV88F5182_DEV_ID)
pm_power_off = dns323b_power_off;
else
pm_power_off = dns323a_power_off;
}
/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
MACHINE_START(DNS323, "D-Link DNS-323")
/* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
.phys_io = ORION5X_REGS_PHYS_BASE,
.io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
.boot_params = 0x00000100,
.init_machine = dns323_init,
.map_io = orion5x_map_io,
.init_irq = orion5x_init_irq,
.timer = &orion5x_timer,
.fixup = tag_fixup_mem32,
MACHINE_END
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