| /* |
| * Board-specific setup code for the MIMC200 |
| * |
| * Copyright (C) 2008 Mercury IMC Ltd |
| * |
| * 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. |
| */ |
| |
| extern struct atmel_lcdfb_info mimc200_lcdc_data; |
| |
| #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 <linux/spi/eeprom.h> |
| |
| #include <video/atmel_lcdc.h> |
| #include <linux/fb.h> |
| |
| #include <linux/atmel-mci.h> |
| #include <linux/io.h> |
| #include <asm/setup.h> |
| |
| #include <mach/at32ap700x.h> |
| #include <mach/board.h> |
| #include <mach/init.h> |
| #include <mach/portmux.h> |
| |
| /* Oscillator frequencies. These are board-specific */ |
| unsigned long at32_board_osc_rates[3] = { |
| [0] = 32768, /* 32.768 kHz on RTC osc */ |
| [1] = 10000000, /* 10 MHz on osc0 */ |
| [2] = 12000000, /* 12 MHz on osc1 */ |
| }; |
| |
| /* Initialized by bootloader-specific startup code. */ |
| struct tag *bootloader_tags __initdata; |
| |
| static struct fb_videomode __initdata tx14d14_modes[] = { |
| { |
| .name = "640x480 @ 60", |
| .refresh = 60, |
| .xres = 640, .yres = 480, |
| .pixclock = KHZ2PICOS(11666), |
| |
| .left_margin = 80, .right_margin = 1, |
| .upper_margin = 13, .lower_margin = 2, |
| .hsync_len = 64, .vsync_len = 1, |
| |
| .sync = 0, |
| .vmode = FB_VMODE_NONINTERLACED, |
| }, |
| }; |
| |
| static struct fb_monspecs __initdata mimc200_default_monspecs = { |
| .manufacturer = "HIT", |
| .monitor = "TX14D14VM1BAB", |
| .modedb = tx14d14_modes, |
| .modedb_len = ARRAY_SIZE(tx14d14_modes), |
| .hfmin = 14820, |
| .hfmax = 22230, |
| .vfmin = 60, |
| .vfmax = 73.3, |
| .dclkmax = 25200000, |
| }; |
| |
| struct atmel_lcdfb_info __initdata mimc200_lcdc_data = { |
| .default_bpp = 16, |
| .default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN, |
| .default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT |
| | ATMEL_LCDC_INVCLK |
| | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE |
| | ATMEL_LCDC_MEMOR_BIG), |
| .default_monspecs = &mimc200_default_monspecs, |
| .guard_time = 2, |
| }; |
| |
| 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_eeprom eeprom_25lc010 = { |
| .name = "25lc010", |
| .byte_len = 128, |
| .page_size = 16, |
| .flags = EE_ADDR1, |
| }; |
| |
| static struct spi_board_info spi0_board_info[] __initdata = { |
| { |
| .modalias = "rtc-ds1390", |
| .max_speed_hz = 4000000, |
| .chip_select = 2, |
| }, |
| { |
| .modalias = "at25", |
| .max_speed_hz = 1000000, |
| .chip_select = 1, |
| .mode = SPI_MODE_3, |
| .platform_data = &eeprom_25lc010, |
| }, |
| }; |
| |
| static struct mci_platform_data __initdata mci0_data = { |
| .slot[0] = { |
| .bus_width = 4, |
| .detect_pin = GPIO_PIN_PA(26), |
| .wp_pin = GPIO_PIN_PA(27), |
| }, |
| }; |
| |
| /* |
| * 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(0, 0); /* USART 0: /dev/ttyS0 (TTL --> Altera) */ |
| at32_map_usart(1, 1); /* USART 1: /dev/ttyS1 (RS232) */ |
| at32_map_usart(2, 2); /* USART 2: /dev/ttyS2 (RS485) */ |
| at32_map_usart(3, 3); /* USART 3: /dev/ttyS3 (RS422 Multidrop) */ |
| } |
| |
| static struct i2c_gpio_platform_data i2c_gpio_data = { |
| .sda_pin = GPIO_PIN_PA(6), |
| .scl_pin = GPIO_PIN_PA(7), |
| .sda_is_open_drain = 1, |
| .scl_is_open_drain = 1, |
| .udelay = 2, /* close to 100 kHz */ |
| }; |
| |
| static struct platform_device i2c_gpio_device = { |
| .name = "i2c-gpio", |
| .id = 0, |
| .dev = { |
| .platform_data = &i2c_gpio_data, |
| }, |
| }; |
| |
| static struct i2c_board_info __initdata i2c_info[] = { |
| }; |
| |
| static int __init mimc200_init(void) |
| { |
| /* |
| * MIMC200 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); |
| at32_add_device_usart(2); |
| at32_add_device_usart(3); |
| |
| 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); |
| |
| at32_select_periph(GPIO_PIOB_BASE, 1 << 28, 0, AT32_GPIOF_PULLUP); |
| at32_select_gpio(i2c_gpio_data.sda_pin, |
| AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); |
| at32_select_gpio(i2c_gpio_data.scl_pin, |
| AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH); |
| platform_device_register(&i2c_gpio_device); |
| i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info)); |
| |
| at32_add_device_lcdc(0, &mimc200_lcdc_data, |
| fbmem_start, fbmem_size, 1); |
| |
| return 0; |
| } |
| postcore_initcall(mimc200_init); |