| /* |
| * 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 |