/* * arch/arm/mach-orion/dns323-setup.c * * Copyright (C) 2007 Herbert Valerio Riedel * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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_VIRT_BASE | 0x20074, ORION_PCIE_WA_PHYS_BASE); orion_write(ORION_REGS_VIRT_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 */ .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, MACHINE_END