forked from Minki/linux
84e0cdb0a2
Both at91 and avr32 defines its own platform data structure for the macb driver and both share common structures though at91 includes a currently unused phy_irq_pin. Create a common macb_platform_data for macb that both at91 and avr32 can use. In future we can use this to support other architectures that use the same IP block with the macb driver. v2: rename eth_platform_data to macb_platform_data and allow at91_ether to share the platform data with macb. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
237 lines
5.9 KiB
C
237 lines
5.9 KiB
C
/*
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* Board-specific setup code for the MIMC200
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*
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* Copyright (C) 2008 Mercury IMC Ltd
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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extern struct atmel_lcdfb_info mimc200_lcdc_data;
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#include <linux/clk.h>
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#include <linux/etherdevice.h>
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#include <linux/i2c-gpio.h>
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#include <linux/init.h>
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#include <linux/linkage.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#include <linux/leds.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/eeprom.h>
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#include <video/atmel_lcdc.h>
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#include <linux/fb.h>
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#include <linux/atmel-mci.h>
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#include <linux/io.h>
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#include <asm/setup.h>
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#include <mach/at32ap700x.h>
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#include <mach/board.h>
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#include <mach/init.h>
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#include <mach/portmux.h>
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/* Oscillator frequencies. These are board-specific */
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unsigned long at32_board_osc_rates[3] = {
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[0] = 32768, /* 32.768 kHz on RTC osc */
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[1] = 10000000, /* 10 MHz on osc0 */
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[2] = 12000000, /* 12 MHz on osc1 */
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};
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/* Initialized by bootloader-specific startup code. */
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struct tag *bootloader_tags __initdata;
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static struct fb_videomode __initdata pt0434827_modes[] = {
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{
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.name = "480x272 @ 72",
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.refresh = 72,
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.xres = 480, .yres = 272,
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.pixclock = KHZ2PICOS(10000),
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.left_margin = 1, .right_margin = 1,
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.upper_margin = 12, .lower_margin = 1,
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.hsync_len = 42, .vsync_len = 1,
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.sync = 0,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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};
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static struct fb_monspecs __initdata mimc200_default_monspecs = {
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.manufacturer = "PT",
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.monitor = "PT0434827-A401",
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.modedb = pt0434827_modes,
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.modedb_len = ARRAY_SIZE(pt0434827_modes),
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.hfmin = 14820,
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.hfmax = 22230,
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.vfmin = 60,
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.vfmax = 85,
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.dclkmax = 25200000,
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};
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struct atmel_lcdfb_info __initdata mimc200_lcdc_data = {
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.default_bpp = 16,
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.default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
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.default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT
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| ATMEL_LCDC_INVCLK
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| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
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| ATMEL_LCDC_MEMOR_BIG),
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.default_monspecs = &mimc200_default_monspecs,
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.guard_time = 2,
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};
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struct eth_addr {
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u8 addr[6];
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};
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static struct eth_addr __initdata hw_addr[2];
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static struct macb_platform_data __initdata eth_data[2];
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static struct spi_eeprom eeprom_25lc010 = {
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.name = "25lc010",
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.byte_len = 128,
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.page_size = 16,
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.flags = EE_ADDR1,
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};
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static struct spi_board_info spi0_board_info[] __initdata = {
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{
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.modalias = "rtc-ds1390",
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.max_speed_hz = 4000000,
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.chip_select = 2,
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},
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{
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.modalias = "at25",
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.max_speed_hz = 1000000,
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.chip_select = 1,
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.mode = SPI_MODE_3,
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.platform_data = &eeprom_25lc010,
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},
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};
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static struct mci_platform_data __initdata mci0_data = {
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.slot[0] = {
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.bus_width = 4,
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.detect_pin = GPIO_PIN_PA(26),
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.wp_pin = GPIO_PIN_PA(27),
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},
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};
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/*
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* The next two functions should go away as the boot loader is
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* supposed to initialize the macb address registers with a valid
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* ethernet address. But we need to keep it around for a while until
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* we can be reasonably sure the boot loader does this.
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*
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* The phy_id is ignored as the driver will probe for it.
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*/
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static int __init parse_tag_ethernet(struct tag *tag)
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{
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int i;
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i = tag->u.ethernet.mac_index;
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if (i < ARRAY_SIZE(hw_addr))
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memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
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sizeof(hw_addr[i].addr));
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return 0;
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}
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__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
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static void __init set_hw_addr(struct platform_device *pdev)
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{
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struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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const u8 *addr;
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void __iomem *regs;
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struct clk *pclk;
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if (!res)
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return;
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if (pdev->id >= ARRAY_SIZE(hw_addr))
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return;
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addr = hw_addr[pdev->id].addr;
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if (!is_valid_ether_addr(addr))
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return;
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/*
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* Since this is board-specific code, we'll cheat and use the
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* physical address directly as we happen to know that it's
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* the same as the virtual address.
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*/
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regs = (void __iomem __force *)res->start;
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pclk = clk_get(&pdev->dev, "pclk");
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if (IS_ERR(pclk))
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return;
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clk_enable(pclk);
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__raw_writel((addr[3] << 24) | (addr[2] << 16)
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| (addr[1] << 8) | addr[0], regs + 0x98);
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__raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
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clk_disable(pclk);
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clk_put(pclk);
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}
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void __init setup_board(void)
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{
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at32_map_usart(0, 0, 0); /* USART 0: /dev/ttyS0 (TTL --> Altera) */
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at32_map_usart(1, 1, 0); /* USART 1: /dev/ttyS1 (RS232) */
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at32_map_usart(2, 2, 0); /* USART 2: /dev/ttyS2 (RS485) */
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at32_map_usart(3, 3, 0); /* USART 3: /dev/ttyS3 (RS422 Multidrop) */
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}
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static struct i2c_gpio_platform_data i2c_gpio_data = {
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.sda_pin = GPIO_PIN_PA(6),
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.scl_pin = GPIO_PIN_PA(7),
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.sda_is_open_drain = 1,
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.scl_is_open_drain = 1,
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.udelay = 2, /* close to 100 kHz */
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};
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static struct platform_device i2c_gpio_device = {
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.name = "i2c-gpio",
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.id = 0,
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.dev = {
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.platform_data = &i2c_gpio_data,
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},
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};
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static struct i2c_board_info __initdata i2c_info[] = {
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};
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static int __init mimc200_init(void)
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{
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/*
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* MIMC200 uses 16-bit SDRAM interface, so we don't need to
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* reserve any pins for it.
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*/
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at32_add_device_usart(0);
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at32_add_device_usart(1);
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at32_add_device_usart(2);
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at32_add_device_usart(3);
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set_hw_addr(at32_add_device_eth(0, ð_data[0]));
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set_hw_addr(at32_add_device_eth(1, ð_data[1]));
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at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
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at32_add_device_mci(0, &mci0_data);
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at32_add_device_usba(0, NULL);
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at32_select_periph(GPIO_PIOB_BASE, 1 << 28, 0, AT32_GPIOF_PULLUP);
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at32_select_gpio(i2c_gpio_data.sda_pin,
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AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
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at32_select_gpio(i2c_gpio_data.scl_pin,
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AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
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platform_device_register(&i2c_gpio_device);
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i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info));
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at32_add_device_lcdc(0, &mimc200_lcdc_data,
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fbmem_start, fbmem_size,
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ATMEL_LCDC_CONTROL | ATMEL_LCDC_ALT_CONTROL | ATMEL_LCDC_ALT_24B_DATA);
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return 0;
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}
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postcore_initcall(mimc200_init);
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