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| /* |
| * Board-specific setup code for the ATNGW100 Network Gateway |
| * |
| * Copyright (C) 2005-2006 Atmel Corporation |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #include <linux/clk.h> |
| #include <linux/etherdevice.h> |
| #include <linux/i2c-gpio.h> |
| #include <linux/init.h> |
| #include <linux/linkage.h> |
| #include <linux/platform_device.h> |
| #include <linux/types.h> |
| #include <linux/leds.h> |
| #include <linux/spi/spi.h> |
| |
| #include <asm/io.h> |
| #include <asm/setup.h> |
| |
| #include <asm/arch/at32ap7000.h> |
| #include <asm/arch/board.h> |
| #include <asm/arch/init.h> |
| #include <asm/arch/portmux.h> |
| |
| /* Initialized by bootloader-specific startup code. */ |
| struct tag *bootloader_tags __initdata; |
| |
| struct eth_addr { |
| u8 addr[6]; |
| }; |
| static struct eth_addr __initdata hw_addr[2]; |
| static struct eth_platform_data __initdata eth_data[2]; |
| |
| static struct spi_board_info spi0_board_info[] __initdata = { |
| { |
| .modalias = "mtd_dataflash", |
| .max_speed_hz = 10000000, |
| .chip_select = 0, |
| }, |
| }; |
| |
| static struct mci_platform_data __initdata mci0_data = { |
| .detect_pin = GPIO_PIN_PC(25), |
| .wp_pin = GPIO_PIN_PE(0), |
| }; |
| |
| /* |
| * The next two functions should go away as the boot loader is |
| * supposed to initialize the macb address registers with a valid |
| * ethernet address. But we need to keep it around for a while until |
| * we can be reasonably sure the boot loader does this. |
| * |
| * The phy_id is ignored as the driver will probe for it. |
| */ |
| static int __init parse_tag_ethernet(struct tag *tag) |
| { |
| int i; |
| |
| i = tag->u.ethernet.mac_index; |
| if (i < ARRAY_SIZE(hw_addr)) |
| memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address, |
| sizeof(hw_addr[i].addr)); |
| |
| return 0; |
| } |
| __tagtable(ATAG_ETHERNET, parse_tag_ethernet); |
| |
| static void __init set_hw_addr(struct platform_device *pdev) |
| { |
| struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| const u8 *addr; |
| void __iomem *regs; |
| struct clk *pclk; |
| |
| if (!res) |
| return; |
| if (pdev->id >= ARRAY_SIZE(hw_addr)) |
| return; |
| |
| addr = hw_addr[pdev->id].addr; |
| if (!is_valid_ether_addr(addr)) |
| return; |
| |
| /* |
| * Since this is board-specific code, we'll cheat and use the |
| * physical address directly as we happen to know that it's |
| * the same as the virtual address. |
| */ |
| regs = (void __iomem __force *)res->start; |
| pclk = clk_get(&pdev->dev, "pclk"); |
| if (!pclk) |
| return; |
| |
| clk_enable(pclk); |
| __raw_writel((addr[3] << 24) | (addr[2] << 16) |
| | (addr[1] << 8) | addr[0], regs + 0x98); |
| __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c); |
| clk_disable(pclk); |
| clk_put(pclk); |
| } |
| |
| void __init setup_board(void) |
| { |
| at32_map_usart(1, 0); /* USART 1: /dev/ttyS0, DB9 */ |
| at32_map_usart(3, 1); /* USART 3: /dev/ttyS1 */ |
| at32_setup_serial_console(0); |
| } |
| |
| static const struct gpio_led ngw_leds[] = { |
| { .name = "sys", .gpio = GPIO_PIN_PA(16), .active_low = 1, |
| .default_trigger = "heartbeat", |
| }, |
| { .name = "a", .gpio = GPIO_PIN_PA(19), .active_low = 1, }, |
| { .name = "b", .gpio = GPIO_PIN_PE(19), .active_low = 1, }, |
| }; |
| |
| static const struct gpio_led_platform_data ngw_led_data = { |
| .num_leds = ARRAY_SIZE(ngw_leds), |
| .leds = (void *) ngw_leds, |
| }; |
| |
| static struct platform_device ngw_gpio_leds = { |
| .name = "leds-gpio", |
| .id = -1, |
| .dev = { |
| .platform_data = (void *) &ngw_led_data, |
| } |
| }; |
| |
| #ifdef CONFIG_BOARD_ATNGW100_I2C_GPIO |
| static struct i2c_gpio_platform_data i2c_gpio_data = { |
| .sda_pin = GPIO_PIN_PA(6), |
| .scl_pin = GPIO_PIN_PA(7), |
| }; |
| |
| static struct platform_device i2c_gpio_device = { |
| .name = "i2c-gpio", |
| .id = 0, |
| .dev = { |
| .platform_data = &i2c_gpio_data, |
| }, |
| }; |
| #endif |
| |
| static int __init atngw100_init(void) |
| { |
| unsigned i; |
| |
| /* |
| * ATNGW100 uses 16-bit SDRAM interface, so we don't need to |
| * reserve any pins for it. |
| */ |
| |
| at32_add_system_devices(); |
| |
| at32_add_device_usart(0); |
| at32_add_device_usart(1); |
| |
| set_hw_addr(at32_add_device_eth(0, ð_data[0])); |
| set_hw_addr(at32_add_device_eth(1, ð_data[1])); |
| |
| at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); |
| at32_add_device_mci(0, &mci0_data); |
| at32_add_device_usba(0, NULL); |
| |
| for (i = 0; i < ARRAY_SIZE(ngw_leds); i++) { |
| at32_select_gpio(ngw_leds[i].gpio, |
| AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); |
| } |
| platform_device_register(&ngw_gpio_leds); |
| |
| #ifdef CONFIG_BOARD_ATNGW100_I2C_GPIO |
| at32_select_gpio(i2c_gpio_data.sda_pin, 0); |
| at32_select_gpio(i2c_gpio_data.scl_pin, 0); |
| platform_device_register(&i2c_gpio_device); |
| #else |
| at32_add_device_twi(0); |
| #endif |
| at32_add_device_ac97c (0); |
| |
| return 0; |
| } |
| postcore_initcall(atngw100_init); |
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