351 lines
7.9 KiB
C
351 lines
7.9 KiB
C
/*
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* Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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*/
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#include <common.h>
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#include <net.h>
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#include <init.h>
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#include <environment.h>
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#include <fec.h>
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#include <asm/armlinux.h>
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#include <generated/mach-types.h>
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#include <partition.h>
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#include <fs.h>
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#include <fcntl.h>
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#include <io.h>
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#include <mach/hardware.h>
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#include <nand.h>
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#include <linux/sizes.h>
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#include <linux/mtd/nand.h>
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#include <mach/board.h>
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#include <mach/at91sam9_smc.h>
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#include <gpio.h>
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#include <mach/io.h>
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#include <mach/iomux.h>
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#include <mach/at91_pmc.h>
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#include <mach/at91_rstc.h>
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#include <mach/at91sam9x5_matrix.h>
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#include <input/qt1070.h>
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#include <readkey.h>
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#include <spi/spi.h>
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static struct atmel_nand_data nand_pdata = {
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.ale = 21,
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.cle = 22,
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.det_pin = -EINVAL,
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.rdy_pin = AT91_PIN_PD5,
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.enable_pin = AT91_PIN_PD4,
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.has_pmecc = 1,
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.ecc_mode = NAND_ECC_HW,
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.pmecc_sector_size = 512,
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.pmecc_corr_cap = 2,
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.bus_on_d0 = 1,
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.on_flash_bbt = 1,
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};
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static struct sam9_smc_config ek_nand_smc_config = {
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.ncs_read_setup = 0,
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.nrd_setup = 2,
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.ncs_write_setup = 0,
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.nwe_setup = 1,
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.ncs_read_pulse = 6,
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.nrd_pulse = 4,
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.ncs_write_pulse = 5,
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.nwe_pulse = 3,
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.read_cycle = 7,
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.write_cycle = 5,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
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.tdf_cycles = 1,
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};
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static void ek_add_device_nand(void)
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{
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ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
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/* configure chip-select 3 (NAND) */
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sam9_smc_configure(0, 3, &ek_nand_smc_config);
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at91_add_device_nand(&nand_pdata);
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}
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/*
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* KS8851 ethernet device
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*/
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#if defined(CONFIG_DRIVER_NET_KS8851_MLL)
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/*
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* SMC timings for the KS8851.
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* Note: These timings were calculated
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* for MASTER_CLOCK = 100000000 according to the KS8851 timings.
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*/
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static struct sam9_smc_config __initdata ks8851_smc_config = {
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.ncs_read_setup = 0,
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.nrd_setup = 1,
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.ncs_write_setup = 0,
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.nwe_setup = 2,
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.ncs_read_pulse = 7,
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.nrd_pulse = 7,
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.ncs_write_pulse = 7,
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.nwe_pulse = 7,
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.read_cycle = 9,
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.write_cycle = 9,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT | AT91_SMC_DBW_16,
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.tdf_cycles = 1,
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};
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static void __init ek_add_device_ks8851(void)
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{
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/* Configure chip-select 2 (KS8851) */
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sam9_smc_configure(0, 2, &ks8851_smc_config);
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/* Configure NCS signal */
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at91_set_B_periph(AT91_PIN_PD19, 0);
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/* Configure Interrupt pin as input, no pull-up */
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at91_set_gpio_input(AT91_PIN_PD21, 0);
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add_ks8851_device(DEVICE_ID_SINGLE, AT91_CHIPSELECT_2, AT91_CHIPSELECT_2 + 2,
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IORESOURCE_MEM_16BIT, NULL);
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}
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#else
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static void __init ek_add_device_ks8851(void) {}
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#endif /* CONFIG_DRIVER_NET_KS8851_MLL */
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#if defined(CONFIG_DRIVER_VIDEO_ATMEL_HLCD)
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static int ek_gpio_request_output(int gpio, const char *name)
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{
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int ret;
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ret = gpio_request(gpio, name);
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if (ret) {
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pr_err("%s: can not request gpio %d (%d)\n", name, gpio, ret);
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return ret;
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}
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ret = gpio_direction_output(gpio, 1);
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if (ret)
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pr_err("%s: can not configure gpio %d as output (%d)\n", name, gpio, ret);
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return ret;
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}
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/*
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* LCD Controller
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*/
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static struct fb_videomode at91_tft_vga_modes[] = {
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{
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.name = "QD",
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.refresh = 60,
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.xres = 480, .yres = 272,
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.pixclock = KHZ2PICOS(9000),
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.left_margin = 8, .right_margin = 43,
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.upper_margin = 4, .lower_margin = 12,
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.hsync_len = 5, .vsync_len = 10,
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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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/* Default output mode is TFT 24 bit */
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#define BPP_OUT_DEFAULT_LCDCFG5 (LCDC_LCDCFG5_MODE_OUTPUT_24BPP)
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static void at91_lcdc_power_control(int on)
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{
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gpio_set_value(AT91_PIN_PC25, !on);
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}
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/* Driver datas */
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static struct atmel_lcdfb_platform_data ek_lcdc_data = {
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.lcdcon_is_backlight = true,
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.default_bpp = 16,
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.default_dmacon = ATMEL_LCDC_DMAEN,
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.default_lcdcon2 = BPP_OUT_DEFAULT_LCDCFG5,
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.guard_time = 9,
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.lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
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.atmel_lcdfb_power_control = at91_lcdc_power_control,
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.mode_list = at91_tft_vga_modes,
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.num_modes = ARRAY_SIZE(at91_tft_vga_modes),
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};
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static void ek_add_device_lcdc(void)
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{
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if (ek_gpio_request_output(AT91_PIN_PC25, "lcdc_power"))
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return;
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at91_add_device_lcdc(&ek_lcdc_data);
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}
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#else
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static void ek_add_device_lcdc(void) {}
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#endif
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/*
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* MCI (SD/MMC)
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*/
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/* mci0 detect_pin is revision dependent */
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static struct atmel_mci_platform_data mci0_data = {
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.bus_width = 4,
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.detect_pin = AT91_PIN_PA7,
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.wp_pin = -EINVAL,
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};
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static void ek_add_device_mci(void)
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{
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/* MMC0 */
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at91_add_device_mci(0, &mci0_data);
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}
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struct qt1070_platform_data qt1070_pdata = {
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.irq_pin = AT91_PIN_PA2,
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};
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static struct i2c_board_info i2c_devices[] = {
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{
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.platform_data = &qt1070_pdata,
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I2C_BOARD_INFO("qt1070", 0x1b),
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},
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};
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static void ek_add_device_i2c(void)
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{
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at91_set_gpio_input(qt1070_pdata.irq_pin, 0);
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at91_set_deglitch(qt1070_pdata.irq_pin, 1);
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at91_add_device_i2c(0, i2c_devices, ARRAY_SIZE(i2c_devices));
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}
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static const struct spi_board_info ek_spi_devices[] = {
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{
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.name = "m25p80",
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.chip_select = 0,
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.max_speed_hz = 1 * 1000 * 1000,
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.bus_num = 0,
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},
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};
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static unsigned spi0_standard_cs[] = { AT91_PIN_PA14 };
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static struct at91_spi_platform_data spi_pdata = {
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.chipselect = spi0_standard_cs,
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.num_chipselect = ARRAY_SIZE(spi0_standard_cs),
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};
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static void ek_add_device_spi(void)
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{
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spi_register_board_info(ek_spi_devices,
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ARRAY_SIZE(ek_spi_devices));
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at91_add_device_spi(0, &spi_pdata);
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}
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/*
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* USB Device port
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*/
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static struct at91_udc_data __initdata ek_udc_data = {
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.vbus_pin = AT91_PIN_PB16,
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.pullup_pin = -EINVAL, /* pull-up driven by UDC */
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};
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struct gpio_led leds[] = {
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{
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.gpio = AT91_PIN_PB4,
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.led = {
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.name = "d8",
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},
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}, {
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.gpio = AT91_PIN_PB5,
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.active_low = 1,
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.led = {
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.name = "d9",
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},
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}, {
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.gpio = AT91_PIN_PB6,
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.led = {
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.name = "10",
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},
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},
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};
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static void __init ek_add_led(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(leds); i++) {
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at91_set_gpio_output(leds[i].gpio, leds[i].active_low);
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led_gpio_register(&leds[i]);
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}
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led_set_trigger(LED_TRIGGER_HEARTBEAT, &leds[0].led);
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}
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static void __init ek_add_device_buttons(void)
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{
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at91_set_gpio_input(AT91_PIN_PB3, 1);
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at91_set_deglitch(AT91_PIN_PB3, 1);
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export_env_ull("dfu_button", AT91_PIN_PB3);
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}
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static int at91sam9n12ek_mem_init(void)
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{
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at91_add_device_sdram(0);
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return 0;
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}
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mem_initcall(at91sam9n12ek_mem_init);
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static int at91sam9n12ek_devices_init(void)
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{
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ek_add_device_spi();
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ek_add_device_nand();
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ek_add_device_mci();
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ek_add_led();
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at91_add_device_udc(&ek_udc_data);
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ek_add_device_i2c();
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ek_add_device_ks8851();
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ek_add_device_buttons();
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ek_add_device_lcdc();
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armlinux_set_architecture(CONFIG_MACH_AT91SAM9N12EK);
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devfs_add_partition("nand0", 0x00000, SZ_256K, DEVFS_PARTITION_FIXED, "at91bootstrap_raw");
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dev_add_bb_dev("at91bootstrap_raw", "at91bootstrap");
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devfs_add_partition("nand0", SZ_256K, SZ_256K + SZ_128K, DEVFS_PARTITION_FIXED, "self_raw");
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dev_add_bb_dev("self_raw", "self0");
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devfs_add_partition("nand0", SZ_512K + SZ_128K, SZ_128K, DEVFS_PARTITION_FIXED, "env_raw");
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dev_add_bb_dev("env_raw", "env0");
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devfs_add_partition("nand0", SZ_512K + SZ_256K, SZ_128K, DEVFS_PARTITION_FIXED, "env_raw1");
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dev_add_bb_dev("env_raw1", "env1");
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return 0;
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}
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device_initcall(at91sam9n12ek_devices_init);
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static int at91sam9n12ek_console_init(void)
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{
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barebox_set_model("Atmel at91sam9n12-ek");
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barebox_set_hostname("at91sam9n12-ek");
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at91_register_uart(0, 0);
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return 0;
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}
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console_initcall(at91sam9n12ek_console_init);
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static int at91sam9n12ek_main_clock(void)
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{
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at91_set_main_clock(16000000);
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return 0;
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}
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pure_initcall(at91sam9n12ek_main_clock);
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