/* * arch/arm/mach-orion5x/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 #include "common.h" #include "mpp.h" #define DNS323_GPIO_LED_RIGHT_AMBER 1 #define DNS323_GPIO_LED_LEFT_AMBER 2 #define DNS323_GPIO_SYSTEM_UP 3 #define DNS323_GPIO_LED_POWER1 4 #define DNS323_GPIO_LED_POWER2 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) { int irq; /* * Check for devices with hard-wired IRQs. */ irq = orion5x_pci_map_irq(dev, slot, pin); if (irq != -1) return irq; return -1; } static struct hw_pci dns323_pci __initdata = { .nr_controllers = 2, .swizzle = pci_std_swizzle, .setup = orion5x_pci_sys_setup, .scan = orion5x_pci_sys_scan_bus, .map_irq = dns323_pci_map_irq, }; static int __init dns323_dev_id(void) { u32 dev, rev; orion5x_pcie_id(&dev, &rev); return dev; } static int __init dns323_pci_init(void) { /* The 5182 doesn't really use its PCI bus, and initialising PCI * gets in the way of initialising the SATA controller. */ if (machine_is_dns323() && dns323_dev_id() != MV88F5182_DEV_ID) pci_common_init(&dns323_pci); return 0; } subsys_initcall(dns323_pci_init); /**************************************************************************** * 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, }; /**************************************************************************** * Ethernet */ static struct mv643xx_eth_platform_data dns323_eth_data = { .phy_addr = MV643XX_ETH_PHY_ADDR(8), }; /* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these * functions be kept somewhere? */ static int __init dns323_parse_hex_nibble(char n) { if (n >= '0' && n <= '9') return n - '0'; if (n >= 'A' && n <= 'F') return n - 'A' + 10; if (n >= 'a' && n <= 'f') return n - 'a' + 10; return -1; } static int __init dns323_parse_hex_byte(const char *b) { int hi; int lo; hi = dns323_parse_hex_nibble(b[0]); lo = dns323_parse_hex_nibble(b[1]); if (hi < 0 || lo < 0) return -1; return (hi << 4) | lo; } static int __init dns323_read_mac_addr(void) { u_int8_t addr[6]; int i; char *mac_page; /* MAC address is stored as a regular ol' string in /dev/mtdblock4 * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80). */ mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024); if (!mac_page) return -ENOMEM; /* Sanity check the string we're looking at */ for (i = 0; i < 5; i++) { if (*(mac_page + (i * 3) + 2) != ':') { goto error_fail; } } for (i = 0; i < 6; i++) { int byte; byte = dns323_parse_hex_byte(mac_page + (i * 3)); if (byte < 0) { goto error_fail; } addr[i] = byte; } iounmap(mac_page); printk("DNS323: Found ethernet MAC address: "); for (i = 0; i < 6; i++) printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n"); memcpy(dns323_eth_data.mac_addr, addr, 6); return 0; error_fail: iounmap(mac_page); return -EINVAL; } /**************************************************************************** * GPIO LEDs (simple - doesn't use hardware blinking support) */ #define ORION_BLINK_HALF_PERIOD 100 /* ms */ static int dns323_gpio_blink_set(unsigned gpio, int state, unsigned long *delay_on, unsigned long *delay_off) { if (delay_on && delay_off && !*delay_on && !*delay_off) *delay_on = *delay_off = ORION_BLINK_HALF_PERIOD; switch(state) { case GPIO_LED_NO_BLINK_LOW: case GPIO_LED_NO_BLINK_HIGH: orion_gpio_set_blink(gpio, 0); gpio_set_value(gpio, state); break; case GPIO_LED_BLINK: orion_gpio_set_blink(gpio, 1); } return 0; } static struct gpio_led dns323_leds[] = { { .name = "power:blue", .gpio = DNS323_GPIO_LED_POWER2, .default_trigger = "default-on", }, { .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, .gpio_blink_set = dns323_gpio_blink_set, }; 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, }, }; /***************************************************************************** * SATA */ static struct mv_sata_platform_data dns323_sata_data = { .n_ports = 2, }; /**************************************************************************** * General Setup */ static struct orion5x_mpp_mode dns323_mv88f5181_mpp_modes[] __initdata = { { 0, MPP_PCIE_RST_OUTn }, { 1, MPP_GPIO }, /* right amber LED (sata ch0) */ { 2, MPP_GPIO }, /* left amber LED (sata ch1) */ { 3, MPP_UNUSED }, { 4, MPP_GPIO }, /* power button LED */ { 5, MPP_GPIO }, /* power button LED */ { 6, MPP_GPIO }, /* GMT G751-2f overtemp */ { 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */ { 8, MPP_GPIO }, /* triggers power off */ { 9, MPP_GPIO }, /* power button switch */ { 10, MPP_GPIO }, /* reset button switch */ { 11, MPP_UNUSED }, { 12, MPP_UNUSED }, { 13, MPP_UNUSED }, { 14, MPP_UNUSED }, { 15, MPP_UNUSED }, { 16, MPP_UNUSED }, { 17, MPP_UNUSED }, { 18, MPP_UNUSED }, { 19, MPP_UNUSED }, { -1 }, }; static struct orion5x_mpp_mode dns323_mv88f5182_mpp_modes[] __initdata = { { 0, MPP_UNUSED }, { 1, MPP_GPIO }, /* right amber LED (sata ch0) */ { 2, MPP_GPIO }, /* left amber LED (sata ch1) */ { 3, MPP_GPIO }, /* system up flag */ { 4, MPP_GPIO }, /* power button LED */ { 5, MPP_GPIO }, /* power button LED */ { 6, MPP_GPIO }, /* GMT G751-2f overtemp */ { 7, MPP_GPIO }, /* M41T80 nIRQ/OUT/SQW */ { 8, MPP_GPIO }, /* triggers power off */ { 9, MPP_GPIO }, /* power button switch */ { 10, MPP_GPIO }, /* reset button switch */ { 11, MPP_UNUSED }, { 12, MPP_SATA_LED }, { 13, MPP_SATA_LED }, { 14, MPP_SATA_LED }, { 15, MPP_SATA_LED }, { 16, MPP_UNUSED }, { 17, MPP_UNUSED }, { 18, MPP_UNUSED }, { 19, MPP_UNUSED }, { -1 }, }; /* * 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), }, { I2C_BOARD_INFO("lm75", 0x48), }, { I2C_BOARD_INFO("m41t80", 0x68), }, }; /* DNS-323 rev. A specific power off method */ static void dns323a_power_off(void) { pr_info("%s: triggering power-off...\n", __func__); gpio_set_value(DNS323_GPIO_POWER_OFF, 1); } /* DNS-323 rev B specific power off method */ static void dns323b_power_off(void) { pr_info("%s: triggering power-off...\n", __func__); /* Pin has to be changed to 1 and back to 0 to do actual power off. */ gpio_set_value(DNS323_GPIO_POWER_OFF, 1); mdelay(100); gpio_set_value(DNS323_GPIO_POWER_OFF, 0); } static void __init dns323_init(void) { /* Setup basic Orion functions. Need to be called early. */ orion5x_init(); /* Just to be tricky, the 5182 has a completely different * set of MPP modes to the 5181. */ if (dns323_dev_id() == MV88F5182_DEV_ID) orion5x_mpp_conf(dns323_mv88f5182_mpp_modes); else { orion5x_mpp_conf(dns323_mv88f5181_mpp_modes); writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */ } /* setup flash mapping * CS3 holds a 8 MB Spansion S29GL064M90TFIR4 */ orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE); platform_device_register(&dns323_nor_flash); /* The 5181 power LED is active low and requires * DNS323_GPIO_LED_POWER1 to also be low. */ if (dns323_dev_id() == MV88F5181_DEV_ID) { dns323_leds[0].active_low = 1; gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable"); gpio_direction_output(DNS323_GPIO_LED_POWER1, 0); } platform_device_register(&dns323_gpio_leds); platform_device_register(&dns323_button_device); i2c_register_board_info(0, dns323_i2c_devices, ARRAY_SIZE(dns323_i2c_devices)); /* * Configure peripherals. */ if (dns323_read_mac_addr() < 0) printk("DNS323: Failed to read MAC address\n"); orion5x_ehci0_init(); orion5x_eth_init(&dns323_eth_data); orion5x_i2c_init(); orion5x_uart0_init(); /* The 5182 has its SATA controller on-chip, and needs its own little * init routine. */ if (dns323_dev_id() == MV88F5182_DEV_ID) orion5x_sata_init(&dns323_sata_data); /* The 5182 has flag to indicate the system is up. Without this flag * set, power LED will flash and cannot be controlled via leds-gpio. */ if (dns323_dev_id() == MV88F5182_DEV_ID) gpio_set_value(DNS323_GPIO_SYSTEM_UP, 1); /* 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"); if (dns323_dev_id() == MV88F5182_DEV_ID) pm_power_off = dns323b_power_off; else pm_power_off = dns323a_power_off; } /* 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 = ORION5X_REGS_PHYS_BASE, .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC, .boot_params = 0x00000100, .init_machine = dns323_init, .map_io = orion5x_map_io, .init_irq = orion5x_init_irq, .timer = &orion5x_timer, .fixup = tag_fixup_mem32, MACHINE_END