bbdf1c1e58
Whereas most Orion 5x machine support code would initialise the PCI subsystem with nr_controllers in their struct hw_pci set to 2, the DNS323 and Kurobox Pro machine support code had nr_controllers set to 1. This was presumably done because on those two machines, the PCI(-X) controller (nr == 1) isn't used, requiring initialisation of only the PCIe controller (nr == 0.) However, not initialising the PCI(-X) controller on boards that don't use it leads to a situation where both the PCIe and the PCI(-X) controller think that their root bus is zero, and it messes up IRQ assignment. This patch changes the DNS323 and Kurobox Pro support code to always use nr_controllers == 2. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
322 lines
8.1 KiB
C
322 lines
8.1 KiB
C
/*
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* arch/arm/mach-orion5x/dns323-setup.c
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*
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* Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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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/pci.h>
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#include <linux/irq.h>
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#include <linux/mtd/physmap.h>
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#include <linux/mv643xx_eth.h>
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#include <linux/leds.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/i2c.h>
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#include <asm/mach-types.h>
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#include <asm/gpio.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/pci.h>
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#include <asm/arch/orion5x.h>
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#include "common.h"
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#define DNS323_GPIO_LED_RIGHT_AMBER 1
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#define DNS323_GPIO_LED_LEFT_AMBER 2
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#define DNS323_GPIO_LED_POWER 5
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#define DNS323_GPIO_OVERTEMP 6
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#define DNS323_GPIO_RTC 7
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#define DNS323_GPIO_POWER_OFF 8
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#define DNS323_GPIO_KEY_POWER 9
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#define DNS323_GPIO_KEY_RESET 10
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/****************************************************************************
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* PCI setup
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*/
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static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
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{
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int irq;
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/*
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* Check for devices with hard-wired IRQs.
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*/
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irq = orion5x_pci_map_irq(dev, slot, pin);
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if (irq != -1)
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return irq;
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pr_err("%s: requested mapping for unknown device\n", __func__);
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return -1;
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}
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static struct hw_pci dns323_pci __initdata = {
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.nr_controllers = 2,
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.swizzle = pci_std_swizzle,
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.setup = orion5x_pci_sys_setup,
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.scan = orion5x_pci_sys_scan_bus,
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.map_irq = dns323_pci_map_irq,
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};
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static int __init dns323_pci_init(void)
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{
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if (machine_is_dns323())
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pci_common_init(&dns323_pci);
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return 0;
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}
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subsys_initcall(dns323_pci_init);
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/****************************************************************************
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* Ethernet
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*/
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static struct mv643xx_eth_platform_data dns323_eth_data = {
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.phy_addr = 8,
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.force_phy_addr = 1,
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};
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/****************************************************************************
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* 8MiB NOR flash (Spansion S29GL064M90TFIR4)
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*
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* Layout as used by D-Link:
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* 0x00000000-0x00010000 : "MTD1"
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* 0x00010000-0x00020000 : "MTD2"
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* 0x00020000-0x001a0000 : "Linux Kernel"
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* 0x001a0000-0x007d0000 : "File System"
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* 0x007d0000-0x00800000 : "u-boot"
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*/
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#define DNS323_NOR_BOOT_BASE 0xf4000000
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#define DNS323_NOR_BOOT_SIZE SZ_8M
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static struct mtd_partition dns323_partitions[] = {
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{
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.name = "MTD1",
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.size = 0x00010000,
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.offset = 0,
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}, {
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.name = "MTD2",
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.size = 0x00010000,
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.offset = 0x00010000,
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}, {
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.name = "Linux Kernel",
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.size = 0x00180000,
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.offset = 0x00020000,
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}, {
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.name = "File System",
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.size = 0x00630000,
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.offset = 0x001A0000,
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}, {
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.name = "u-boot",
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.size = 0x00030000,
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.offset = 0x007d0000,
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}
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};
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static struct physmap_flash_data dns323_nor_flash_data = {
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.width = 1,
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.parts = dns323_partitions,
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.nr_parts = ARRAY_SIZE(dns323_partitions)
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};
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static struct resource dns323_nor_flash_resource = {
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.flags = IORESOURCE_MEM,
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.start = DNS323_NOR_BOOT_BASE,
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.end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
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};
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static struct platform_device dns323_nor_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = { .platform_data = &dns323_nor_flash_data, },
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.resource = &dns323_nor_flash_resource,
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.num_resources = 1,
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};
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/****************************************************************************
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* GPIO LEDs (simple - doesn't use hardware blinking support)
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*/
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static struct gpio_led dns323_leds[] = {
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{
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.name = "power:blue",
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.gpio = DNS323_GPIO_LED_POWER,
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.active_low = 1,
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}, {
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.name = "right:amber",
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.gpio = DNS323_GPIO_LED_RIGHT_AMBER,
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.active_low = 1,
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}, {
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.name = "left:amber",
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.gpio = DNS323_GPIO_LED_LEFT_AMBER,
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.active_low = 1,
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},
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};
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static struct gpio_led_platform_data dns323_led_data = {
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.num_leds = ARRAY_SIZE(dns323_leds),
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.leds = dns323_leds,
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};
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static struct platform_device dns323_gpio_leds = {
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.name = "leds-gpio",
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.id = -1,
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.dev = { .platform_data = &dns323_led_data, },
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};
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/****************************************************************************
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* GPIO Attached Keys
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*/
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static struct gpio_keys_button dns323_buttons[] = {
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{
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.code = KEY_RESTART,
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.gpio = DNS323_GPIO_KEY_RESET,
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.desc = "Reset Button",
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.active_low = 1,
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},
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{
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.code = KEY_POWER,
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.gpio = DNS323_GPIO_KEY_POWER,
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.desc = "Power Button",
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.active_low = 1,
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}
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};
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static struct gpio_keys_platform_data dns323_button_data = {
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.buttons = dns323_buttons,
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.nbuttons = ARRAY_SIZE(dns323_buttons),
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};
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static struct platform_device dns323_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.num_resources = 0,
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.dev = { .platform_data = &dns323_button_data, },
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};
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/****************************************************************************
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* General Setup
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*/
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static struct platform_device *dns323_plat_devices[] __initdata = {
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&dns323_nor_flash,
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&dns323_gpio_leds,
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&dns323_button_device,
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};
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/*
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* On the DNS-323 the following devices are attached via I2C:
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*
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* i2c addr | chip | description
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* 0x3e | GMT G760Af | fan speed PWM controller
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* 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
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* 0x68 | ST M41T80 | RTC w/ alarm
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*/
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static struct i2c_board_info __initdata dns323_i2c_devices[] = {
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{
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I2C_BOARD_INFO("g760a", 0x3e),
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},
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#if 0
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/* this entry requires the new-style driver model lm75 driver,
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* for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
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{
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I2C_BOARD_INFO("g751", 0x48),
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},
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#endif
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{
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I2C_BOARD_INFO("m41t80", 0x68),
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}
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};
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/* DNS-323 specific power off method */
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static void dns323_power_off(void)
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{
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pr_info("%s: triggering power-off...\n", __func__);
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gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
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}
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static void __init dns323_init(void)
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{
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/* Setup basic Orion functions. Need to be called early. */
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orion5x_init();
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/* setup flash mapping
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* CS3 holds a 8 MB Spansion S29GL064M90TFIR4
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*/
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orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
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/* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIe
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*
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* Open a special address decode windows for the PCIe WA.
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*/
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orion5x_setup_pcie_wa_win(ORION5X_PCIE_WA_PHYS_BASE,
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ORION5X_PCIE_WA_SIZE);
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/* set MPP to 0 as D-Link's 2.6.12.6 kernel did */
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orion5x_write(MPP_0_7_CTRL, 0);
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orion5x_write(MPP_8_15_CTRL, 0);
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orion5x_write(MPP_16_19_CTRL, 0);
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orion5x_write(MPP_DEV_CTRL, 0);
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/* Define used GPIO pins
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GPIO Map:
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| 0 | | PEX_RST_OUT (not controlled by GPIO)
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| 1 | Out | right amber LED (= sata ch0 LED) (low-active)
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| 2 | Out | left amber LED (= sata ch1 LED) (low-active)
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| 3 | Out | //unknown//
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| 4 | Out | power button LED (low-active, together with pin #5)
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| 5 | Out | power button LED (low-active, together with pin #4)
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| 6 | In | GMT G751-2f overtemp. shutdown signal (low-active)
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| 7 | In | M41T80 nIRQ/OUT/SQW signal
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| 8 | Out | triggers power off (high-active)
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| 9 | In | power button switch (low-active)
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| 10 | In | reset button switch (low-active)
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| 11 | Out | //unknown//
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| 12 | Out | //unknown//
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| 13 | Out | //unknown//
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| 14 | Out | //unknown//
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| 15 | Out | //unknown//
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*/
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orion5x_gpio_set_valid_pins(0x07f6);
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/* register dns323 specific power-off method */
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if ((gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0)
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|| (gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0))
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pr_err("DNS323: failed to setup power-off GPIO\n");
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pm_power_off = dns323_power_off;
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/* register flash and other platform devices */
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platform_add_devices(dns323_plat_devices,
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ARRAY_SIZE(dns323_plat_devices));
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i2c_register_board_info(0, dns323_i2c_devices,
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ARRAY_SIZE(dns323_i2c_devices));
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orion5x_eth_init(&dns323_eth_data);
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}
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/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
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MACHINE_START(DNS323, "D-Link DNS-323")
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/* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
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.phys_io = ORION5X_REGS_PHYS_BASE,
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.io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
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.boot_params = 0x00000100,
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.init_machine = dns323_init,
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.map_io = orion5x_map_io,
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.init_irq = orion5x_init_irq,
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.timer = &orion5x_timer,
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.fixup = tag_fixup_mem32,
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MACHINE_END
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