2008-07-10 17:15:35 +08:00
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/*
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* Copyright (C) 2005 SAN People
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* Copyright (C) 2008 Atmel
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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2011-07-26 17:53:52 +08:00
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#include <linux/gpio.h>
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2008-07-10 17:15:35 +08:00
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/at73c213.h>
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2009-06-29 19:11:50 +08:00
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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2008-07-10 17:15:35 +08:00
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#include <linux/clk.h>
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2010-06-03 20:56:32 +08:00
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#include <linux/regulator/machine.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/consumer.h>
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2008-07-10 17:15:35 +08:00
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2008-08-05 23:14:15 +08:00
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#include <mach/hardware.h>
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2008-07-10 17:15:35 +08:00
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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2008-08-05 23:14:15 +08:00
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#include <mach/board.h>
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2008-10-07 03:05:35 +08:00
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#include <mach/at91sam9_smc.h>
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2011-04-14 00:34:03 +08:00
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#include <mach/system_rev.h>
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2008-07-10 17:15:35 +08:00
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2008-10-07 03:05:35 +08:00
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#include "sam9_smc.h"
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2008-07-10 17:15:35 +08:00
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#include "generic.h"
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2010-09-22 00:01:37 +08:00
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/*
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* board revision encoding
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* bit 0:
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* 0 => 1 sd/mmc slot
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* 1 => 2 sd/mmc slots connectors (board from revision C)
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*/
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#define HAVE_2MMC (1 << 0)
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static int inline ek_have_2mmc(void)
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{
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return machine_is_at91sam9g20ek_2mmc() || (system_rev & HAVE_2MMC);
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}
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2008-07-10 17:15:35 +08:00
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2011-04-28 20:19:32 +08:00
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static void __init ek_init_early(void)
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2008-07-10 17:15:35 +08:00
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{
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/* Initialize processor: 18.432 MHz crystal */
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2011-04-23 15:28:34 +08:00
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at91_initialize(18432000);
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2008-07-10 17:15:35 +08:00
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2009-07-10 23:07:15 +08:00
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/* DBGU on ttyS0. (Rx & Tx only) */
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2008-07-10 17:15:35 +08:00
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at91_register_uart(0, 0, 0);
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/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
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at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
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| ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
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| ATMEL_UART_RI);
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/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
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at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
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/* set serial console to ttyS0 (ie, DBGU) */
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at91_set_serial_console(0);
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}
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/*
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* USB Host port
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*/
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static struct at91_usbh_data __initdata ek_usbh_data = {
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.ports = 2,
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2011-11-25 01:51:06 +08:00
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.vbus_pin = {-EINVAL, -EINVAL},
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.overcurrent_pin= {-EINVAL, -EINVAL},
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2008-07-10 17:15:35 +08:00
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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_PC5,
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2011-11-25 01:51:06 +08:00
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.pullup_pin = -EINVAL, /* pull-up driven by UDC */
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2008-07-10 17:15:35 +08:00
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};
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/*
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* SPI devices.
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*/
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static struct spi_board_info ek_spi_devices[] = {
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2010-09-22 00:01:37 +08:00
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#if !(defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_AT91))
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2008-07-10 17:15:35 +08:00
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{ /* DataFlash chip */
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.modalias = "mtd_dataflash",
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.chip_select = 1,
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.max_speed_hz = 15 * 1000 * 1000,
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.bus_num = 0,
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},
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#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
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{ /* DataFlash card */
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.modalias = "mtd_dataflash",
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.chip_select = 0,
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.max_speed_hz = 15 * 1000 * 1000,
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.bus_num = 0,
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},
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#endif
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#endif
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};
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/*
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* MACB Ethernet device
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*/
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2011-03-09 04:17:06 +08:00
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static struct macb_platform_data __initdata ek_macb_data = {
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2008-07-10 17:15:35 +08:00
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.phy_irq_pin = AT91_PIN_PA7,
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.is_rmii = 1,
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};
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2010-09-22 00:01:37 +08:00
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static void __init ek_add_device_macb(void)
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{
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if (ek_have_2mmc())
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ek_macb_data.phy_irq_pin = AT91_PIN_PB0;
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at91_add_device_eth(&ek_macb_data);
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}
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2008-07-10 17:15:35 +08:00
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/*
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* NAND flash
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*/
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static struct mtd_partition __initdata ek_nand_partition[] = {
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{
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.name = "Bootstrap",
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.offset = 0,
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2008-09-22 04:30:02 +08:00
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.size = 4 * SZ_1M,
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2008-07-10 17:15:35 +08:00
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},
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{
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.name = "Partition 1",
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2008-09-22 04:30:02 +08:00
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.offset = MTDPART_OFS_NXTBLK,
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.size = 60 * SZ_1M,
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2008-07-10 17:15:35 +08:00
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},
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{
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.name = "Partition 2",
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2008-09-22 04:30:02 +08:00
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.offset = MTDPART_OFS_NXTBLK,
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2008-07-10 17:15:35 +08:00
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.size = MTDPART_SIZ_FULL,
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},
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};
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/* det_pin is not connected */
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2008-07-28 23:57:22 +08:00
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static struct atmel_nand_data __initdata ek_nand_data = {
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2008-07-10 17:15:35 +08:00
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.ale = 21,
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.cle = 22,
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.rdy_pin = AT91_PIN_PC13,
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.enable_pin = AT91_PIN_PC14,
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2011-11-25 01:51:06 +08:00
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.det_pin = -EINVAL,
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2011-12-29 14:43:24 +08:00
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.ecc_mode = NAND_ECC_SOFT,
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2011-05-29 21:49:22 +08:00
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.parts = ek_nand_partition,
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.num_parts = ARRAY_SIZE(ek_nand_partition),
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2008-07-10 17:15:35 +08:00
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};
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2008-10-07 03:05:35 +08:00
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static struct sam9_smc_config __initdata 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 = 2,
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.ncs_read_pulse = 4,
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.nrd_pulse = 4,
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.ncs_write_pulse = 4,
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.nwe_pulse = 4,
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.read_cycle = 7,
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.write_cycle = 7,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
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.tdf_cycles = 3,
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};
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static void __init ek_add_device_nand(void)
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{
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2011-07-01 18:25:24 +08:00
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ek_nand_data.bus_width_16 = board_have_nand_16bit();
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2008-10-07 03:05:35 +08:00
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/* setup bus-width (8 or 16) */
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if (ek_nand_data.bus_width_16)
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ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
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else
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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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2011-10-14 01:37:09 +08:00
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sam9_smc_configure(0, 3, &ek_nand_smc_config);
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2008-10-07 03:05:35 +08:00
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at91_add_device_nand(&ek_nand_data);
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}
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2008-07-10 17:15:35 +08:00
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/*
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* MCI (SD/MMC)
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2010-09-22 00:01:37 +08:00
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* wp_pin and vcc_pin are not connected
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2008-07-10 17:15:35 +08:00
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*/
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2010-09-22 00:01:37 +08:00
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#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
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static struct mci_platform_data __initdata ek_mmc_data = {
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.slot[1] = {
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.bus_width = 4,
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.detect_pin = AT91_PIN_PC9,
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2011-11-25 01:51:06 +08:00
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.wp_pin = -EINVAL,
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2010-09-22 00:01:37 +08:00
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},
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};
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#else
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2008-07-10 17:15:35 +08:00
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static struct at91_mmc_data __initdata ek_mmc_data = {
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2010-09-22 00:01:37 +08:00
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.slot_b = 1, /* Only one slot so use slot B */
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2008-07-10 17:15:35 +08:00
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.wire4 = 1,
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2010-09-22 00:01:37 +08:00
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.det_pin = AT91_PIN_PC9,
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2011-11-25 01:51:06 +08:00
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.wp_pin = -EINVAL,
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.vcc_pin = -EINVAL,
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2008-07-10 17:15:35 +08:00
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};
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2010-09-22 00:01:37 +08:00
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#endif
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2008-07-10 17:15:35 +08:00
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2010-09-22 00:01:37 +08:00
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static void __init ek_add_device_mmc(void)
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{
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#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
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if (ek_have_2mmc()) {
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ek_mmc_data.slot[0].bus_width = 4;
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ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
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2011-11-25 01:51:06 +08:00
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ek_mmc_data.slot[0].wp_pin = -1;
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2010-09-22 00:01:37 +08:00
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}
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at91_add_device_mci(0, &ek_mmc_data);
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#else
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at91_add_device_mmc(0, &ek_mmc_data);
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#endif
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}
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2008-07-10 17:15:35 +08:00
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/*
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* LEDs
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*/
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static struct gpio_led ek_leds[] = {
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{ /* "bottom" led, green, userled1 to be defined */
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.name = "ds5",
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.gpio = AT91_PIN_PA6,
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.active_low = 1,
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.default_trigger = "none",
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},
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{ /* "power" led, yellow */
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.name = "ds1",
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.gpio = AT91_PIN_PA9,
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.default_trigger = "heartbeat",
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}
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};
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2010-09-22 00:01:37 +08:00
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static void __init ek_add_device_gpio_leds(void)
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{
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if (ek_have_2mmc()) {
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ek_leds[0].gpio = AT91_PIN_PB8;
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ek_leds[1].gpio = AT91_PIN_PB9;
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}
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at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
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}
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2009-06-29 19:11:50 +08:00
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/*
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* GPIO Buttons
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*/
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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static struct gpio_keys_button ek_buttons[] = {
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{
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.gpio = AT91_PIN_PA30,
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.code = BTN_3,
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.desc = "Button 3",
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.active_low = 1,
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.wakeup = 1,
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},
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{
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.gpio = AT91_PIN_PA31,
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.code = BTN_4,
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.desc = "Button 4",
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.active_low = 1,
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.wakeup = 1,
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}
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};
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static struct gpio_keys_platform_data ek_button_data = {
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.buttons = ek_buttons,
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.nbuttons = ARRAY_SIZE(ek_buttons),
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};
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static struct platform_device ek_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.num_resources = 0,
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.dev = {
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.platform_data = &ek_button_data,
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}
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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_PA30, 1); /* btn3 */
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at91_set_deglitch(AT91_PIN_PA30, 1);
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at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
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at91_set_deglitch(AT91_PIN_PA31, 1);
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platform_device_register(&ek_button_device);
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}
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#else
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static void __init ek_add_device_buttons(void) {}
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#endif
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2010-06-03 20:56:32 +08:00
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#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
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static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
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|
|
|
REGULATOR_SUPPLY("AVDD", "0-001b"),
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|
|
|
REGULATOR_SUPPLY("HPVDD", "0-001b"),
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|
|
|
REGULATOR_SUPPLY("DBVDD", "0-001b"),
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|
|
|
REGULATOR_SUPPLY("DCVDD", "0-001b"),
|
|
|
|
};
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|
|
|
|
|
|
|
static struct regulator_init_data ek_avdd_reg_init_data = {
|
|
|
|
.constraints = {
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|
|
|
.name = "3V3",
|
|
|
|
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
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|
|
|
},
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|
|
|
.consumer_supplies = ek_audio_consumer_supplies,
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|
|
|
.num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies),
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct fixed_voltage_config ek_vdd_pdata = {
|
|
|
|
.supply_name = "board-3V3",
|
|
|
|
.microvolts = 3300000,
|
|
|
|
.gpio = -EINVAL,
|
|
|
|
.enabled_at_boot = 0,
|
|
|
|
.init_data = &ek_avdd_reg_init_data,
|
|
|
|
};
|
|
|
|
static struct platform_device ek_voltage_regulator = {
|
|
|
|
.name = "reg-fixed-voltage",
|
|
|
|
.id = -1,
|
|
|
|
.num_resources = 0,
|
|
|
|
.dev = {
|
|
|
|
.platform_data = &ek_vdd_pdata,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
static void __init ek_add_regulators(void)
|
|
|
|
{
|
|
|
|
platform_device_register(&ek_voltage_regulator);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
static void __init ek_add_regulators(void) {}
|
|
|
|
#endif
|
|
|
|
|
2009-06-29 19:11:50 +08:00
|
|
|
|
2009-05-25 15:02:35 +08:00
|
|
|
static struct i2c_board_info __initdata ek_i2c_devices[] = {
|
2010-03-11 09:15:04 +08:00
|
|
|
{
|
|
|
|
I2C_BOARD_INFO("24c512", 0x50)
|
|
|
|
},
|
|
|
|
{
|
|
|
|
I2C_BOARD_INFO("wm8731", 0x1b)
|
|
|
|
},
|
2009-05-25 15:02:35 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
|
2008-07-10 17:15:35 +08:00
|
|
|
static void __init ek_board_init(void)
|
|
|
|
{
|
|
|
|
/* Serial */
|
|
|
|
at91_add_device_serial();
|
|
|
|
/* USB Host */
|
|
|
|
at91_add_device_usbh(&ek_usbh_data);
|
|
|
|
/* USB Device */
|
|
|
|
at91_add_device_udc(&ek_udc_data);
|
|
|
|
/* SPI */
|
|
|
|
at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
|
|
|
|
/* NAND */
|
2008-10-07 03:05:35 +08:00
|
|
|
ek_add_device_nand();
|
2008-07-10 17:15:35 +08:00
|
|
|
/* Ethernet */
|
2010-09-22 00:01:37 +08:00
|
|
|
ek_add_device_macb();
|
2010-06-03 20:56:32 +08:00
|
|
|
/* Regulators */
|
|
|
|
ek_add_regulators();
|
2008-07-10 17:15:35 +08:00
|
|
|
/* MMC */
|
2010-09-22 00:01:37 +08:00
|
|
|
ek_add_device_mmc();
|
2008-07-10 17:15:35 +08:00
|
|
|
/* I2C */
|
2009-05-25 15:02:35 +08:00
|
|
|
at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
|
2008-07-10 17:15:35 +08:00
|
|
|
/* LEDs */
|
2010-09-22 00:01:37 +08:00
|
|
|
ek_add_device_gpio_leds();
|
2009-06-29 19:11:50 +08:00
|
|
|
/* Push Buttons */
|
|
|
|
ek_add_device_buttons();
|
2009-02-17 03:39:19 +08:00
|
|
|
/* PCK0 provides MCLK to the WM8731 */
|
|
|
|
at91_set_B_periph(AT91_PIN_PC1, 0);
|
|
|
|
/* SSC (for WM8731) */
|
|
|
|
at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
|
2008-07-10 17:15:35 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
|
|
|
|
/* Maintainer: Atmel */
|
|
|
|
.timer = &at91sam926x_timer,
|
2011-04-23 15:28:34 +08:00
|
|
|
.map_io = at91_map_io,
|
2011-04-28 20:19:32 +08:00
|
|
|
.init_early = ek_init_early,
|
2011-04-23 15:28:34 +08:00
|
|
|
.init_irq = at91_init_irq_default,
|
2008-07-10 17:15:35 +08:00
|
|
|
.init_machine = ek_board_init,
|
|
|
|
MACHINE_END
|
2010-09-22 00:01:37 +08:00
|
|
|
|
|
|
|
MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
|
|
|
|
/* Maintainer: Atmel */
|
|
|
|
.timer = &at91sam926x_timer,
|
2011-04-23 15:28:34 +08:00
|
|
|
.map_io = at91_map_io,
|
2011-04-28 20:19:32 +08:00
|
|
|
.init_early = ek_init_early,
|
2011-04-23 15:28:34 +08:00
|
|
|
.init_irq = at91_init_irq_default,
|
2010-09-22 00:01:37 +08:00
|
|
|
.init_machine = ek_board_init,
|
|
|
|
MACHINE_END
|