diff options
Diffstat (limited to 'arch/arm/mach-orion/dns323-setup.c')
| -rw-r--r-- | arch/arm/mach-orion/dns323-setup.c | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/arch/arm/mach-orion/dns323-setup.c b/arch/arm/mach-orion/dns323-setup.c new file mode 100644 index 00000000000..c8a806f249c --- /dev/null +++ b/arch/arm/mach-orion/dns323-setup.c @@ -0,0 +1,322 @@ +/* + * 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 <asm/arch/platform.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_cpu_win(ORION_DEV_BOOT, DNS323_NOR_BOOT_BASE, + DNS323_NOR_BOOT_SIZE, -1); + + /* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIE + * + * Open a special address decode windows for the PCIE WA. + */ + orion_write(ORION_REGS_BASE | 0x20074, ORION_PCIE_WA_BASE); + orion_write(ORION_REGS_BASE | 0x20070, + (0x7941 | (((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16)); + + /* 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_BASE, + .io_pg_offst = ((ORION_REGS_BASE) >> 18) & 0xFFFC, + .boot_params = 0x00000100, + .init_machine = dns323_init, + .map_io = orion_map_io, + .init_irq = orion_init_irq, + .timer = &orion_timer, +MACHINE_END |