kevin/linux
1
Fork 0
Code
da14d88e90
linux/arch/arm/mach-orion/dns323-setup.c
Lennert Buytenhek 98f79d1ea0 Orion: revamp cpu mbus window handling 
Instead of forcing all device bus window setup through one function
with some enum as the first argument, create separate window setup
functions for each of the four possible targets, and do the demux
internally.  This allows getting rid of the window identifier enum
and the big switch statement in orion_setup_cpu_win().

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-03-27 14:51:40 -04:00

320 lines
8.1 KiB
C
Raw Blame History

/*
* arch/arm/mach-orion/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/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 <asm/mach-types.h>
#include <asm/gpio.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <asm/arch/orion.h>
#include "common.h"
#define DNS323_GPIO_LED_RIGHT_AMBER 1
#define DNS323_GPIO_LED_LEFT_AMBER 2
#define DNS323_GPIO_LED_POWER 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)
{
/* PCI-E */
if (dev->bus->number == orion_pcie_local_bus_nr())
return IRQ_ORION_PCIE0_INT;
pr_err("%s: requested mapping for unknown bus\n", __func__);
return -1;
}
static struct hw_pci dns323_pci __initdata = {
.nr_controllers = 1,
.swizzle = pci_std_swizzle,
.setup = orion_pci_sys_setup,
.scan = orion_pci_sys_scan_bus,
.map_irq = dns323_pci_map_irq,
};
static int __init dns323_pci_init(void)
{
if (machine_is_dns323())
pci_common_init(&dns323_pci);
return 0;
}
subsys_initcall(dns323_pci_init);
/****************************************************************************
* Ethernet
*/
static struct mv643xx_eth_platform_data dns323_eth_data = {
.phy_addr = 8,
.force_phy_addr = 1,
};
/****************************************************************************
* 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,
};
/****************************************************************************
* GPIO LEDs (simple - doesn't use hardware blinking support)
*/
static struct gpio_led dns323_leds[] = {
{
.name = "power:blue",
.gpio = DNS323_GPIO_LED_POWER,
.active_low = 1,
}, {
.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,
};
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, },
};
/****************************************************************************
* General Setup
*/
static struct platform_device *dns323_plat_devices[] __initdata = {
&dns323_nor_flash,
&dns323_gpio_leds,
&dns323_button_device,
};
/*
* 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),
.type = "g760a",
},
#if 0
/* this entry requires the new-style driver model lm75 driver,
* for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
{
I2C_BOARD_INFO("lm75", 0x48),
.type = "g751",
},
#endif
{
I2C_BOARD_INFO("rtc-m41t80", 0x68),
.type = "m41t80",
}
};
/* DNS-323 specific power off method */
static void dns323_power_off(void)
{
pr_info("%s: triggering power-off...\n", __func__);
gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
}
static void __init dns323_init(void)
{
/* Setup basic Orion functions. Need to be called early. */
orion_init();
/* setup flash mapping
* CS3 holds a 8 MB Spansion S29GL064M90TFIR4
*/
orion_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
/* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIE
*
* Open a special address decode windows for the PCIE WA.
*/
orion_setup_pcie_wa_win(ORION_PCIE_WA_PHYS_BASE, ORION_PCIE_WA_SIZE);
/* set MPP to 0 as D-Link's 2.6.12.6 kernel did */
orion_write(MPP_0_7_CTRL, 0);
orion_write(MPP_8_15_CTRL, 0);
orion_write(MPP_16_19_CTRL, 0);
orion_write(MPP_DEV_CTRL, 0);
/* Define used GPIO pins
GPIO Map:
| 0 | | PEX_RST_OUT (not controlled by GPIO)
| 1 | Out | right amber LED (= sata ch0 LED) (low-active)
| 2 | Out | left amber LED (= sata ch1 LED) (low-active)
| 3 | Out | //unknown//
| 4 | Out | power button LED (low-active, together with pin #5)
| 5 | Out | power button LED (low-active, together with pin #4)
| 6 | In | GMT G751-2f overtemp. shutdown signal (low-active)
| 7 | In | M41T80 nIRQ/OUT/SQW signal
| 8 | Out | triggers power off (high-active)
| 9 | In | power button switch (low-active)
| 10 | In | reset button switch (low-active)
| 11 | Out | //unknown//
| 12 | Out | //unknown//
| 13 | Out | //unknown//
| 14 | Out | //unknown//
| 15 | Out | //unknown//
*/
orion_gpio_set_valid_pins(0x07f6);
/* 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");
pm_power_off = dns323_power_off;
/* register flash and other platform devices */
platform_add_devices(dns323_plat_devices,
ARRAY_SIZE(dns323_plat_devices));
i2c_register_board_info(0, dns323_i2c_devices,
ARRAY_SIZE(dns323_i2c_devices));
orion_eth_init(&dns323_eth_data);
}
/* 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 = ORION_REGS_PHYS_BASE,
.io_pg_offst = ((ORION_REGS_VIRT_BASE) >> 18) & 0xFFFC,
.boot_params = 0x00000100,
.init_machine = dns323_init,
.map_io = orion_map_io,
.init_irq = orion_init_irq,
.timer = &orion_timer,
.fixup = tag_fixup_mem32,
MACHINE_END
View Git Blame Copy Permalink