[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / mach-at91 / board-sam9g20ek.c

/*
 *  Copyright (C) 2005 SAN People
 *  Copyright (C) 2008 Atmel
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/types.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/spi/at73c213.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/clk.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/consumer.h>

#include <mach/hardware.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/irq.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <mach/board.h>
#include <mach/gpio.h>
#include <mach/at91sam9_smc.h>

#include "sam9_smc.h"
#include "generic.h"

/*
 * board revision encoding
 * bit 0:
 * 	0 => 1 sd/mmc slot
 * 	1 => 2 sd/mmc slots connectors (board from revision C)
 */
#define HAVE_2MMC	(1 << 0)
static int inline ek_have_2mmc(void)
{
	return machine_is_at91sam9g20ek_2mmc() || (system_rev & HAVE_2MMC);
}


static void __init ek_map_io(void)
{
	/* Initialize processor: 18.432 MHz crystal */
	at91sam9260_initialize(18432000);

	/* DBGU on ttyS0. (Rx & Tx only) */
	at91_register_uart(0, 0, 0);

	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
			   | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
			   | ATMEL_UART_RI);

	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);

	/* set serial console to ttyS0 (ie, DBGU) */
	at91_set_serial_console(0);
}

static void __init ek_init_irq(void)
{
	at91sam9260_init_interrupts(NULL);
}


/*
 * USB Host port
 */
static struct at91_usbh_data __initdata ek_usbh_data = {
	.ports		= 2,
};

/*
 * USB Device port
 */
static struct at91_udc_data __initdata ek_udc_data = {
	.vbus_pin	= AT91_PIN_PC5,
	.pullup_pin	= 0,		/* pull-up driven by UDC */
};


/*
 * SPI devices.
 */
static struct spi_board_info ek_spi_devices[] = {
#if !(defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_AT91))
	{	/* DataFlash chip */
		.modalias	= "mtd_dataflash",
		.chip_select	= 1,
		.max_speed_hz	= 15 * 1000 * 1000,
		.bus_num	= 0,
	},
#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
	{	/* DataFlash card */
		.modalias	= "mtd_dataflash",
		.chip_select	= 0,
		.max_speed_hz	= 15 * 1000 * 1000,
		.bus_num	= 0,
	},
#endif
#endif
};


/*
 * MACB Ethernet device
 */
static struct at91_eth_data __initdata ek_macb_data = {
	.phy_irq_pin	= AT91_PIN_PA7,
	.is_rmii	= 1,
};

static void __init ek_add_device_macb(void)
{
	if (ek_have_2mmc())
		ek_macb_data.phy_irq_pin = AT91_PIN_PB0;

	at91_add_device_eth(&ek_macb_data);
}

/*
 * NAND flash
 */
static struct mtd_partition __initdata ek_nand_partition[] = {
	{
		.name   = "Bootstrap",
		.offset = 0,
		.size   = 4 * SZ_1M,
	},
	{
		.name	= "Partition 1",
		.offset	= MTDPART_OFS_NXTBLK,
		.size	= 60 * SZ_1M,
	},
	{
		.name	= "Partition 2",
		.offset	= MTDPART_OFS_NXTBLK,
		.size	= MTDPART_SIZ_FULL,
	},
};

static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
{
	*num_partitions = ARRAY_SIZE(ek_nand_partition);
	return ek_nand_partition;
}

/* det_pin is not connected */
static struct atmel_nand_data __initdata ek_nand_data = {
	.ale		= 21,
	.cle		= 22,
	.rdy_pin	= AT91_PIN_PC13,
	.enable_pin	= AT91_PIN_PC14,
	.partition_info	= nand_partitions,
#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
	.bus_width_16	= 1,
#else
	.bus_width_16	= 0,
#endif
};

static struct sam9_smc_config __initdata ek_nand_smc_config = {
	.ncs_read_setup		= 0,
	.nrd_setup		= 2,
	.ncs_write_setup	= 0,
	.nwe_setup		= 2,

	.ncs_read_pulse		= 4,
	.nrd_pulse		= 4,
	.ncs_write_pulse	= 4,
	.nwe_pulse		= 4,

	.read_cycle		= 7,
	.write_cycle		= 7,

	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
	.tdf_cycles		= 3,
};

static void __init ek_add_device_nand(void)
{
	/* setup bus-width (8 or 16) */
	if (ek_nand_data.bus_width_16)
		ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
	else
		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;

	/* configure chip-select 3 (NAND) */
	sam9_smc_configure(3, &ek_nand_smc_config);

	at91_add_device_nand(&ek_nand_data);
}


/*
 * MCI (SD/MMC)
 * wp_pin and vcc_pin are not connected
 */
#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
static struct mci_platform_data __initdata ek_mmc_data = {
	.slot[1] = {
		.bus_width	= 4,
		.detect_pin	= AT91_PIN_PC9,
	},

};
#else
static struct at91_mmc_data __initdata ek_mmc_data = {
	.slot_b		= 1,	/* Only one slot so use slot B */
	.wire4		= 1,
	.det_pin	= AT91_PIN_PC9,
};
#endif

static void __init ek_add_device_mmc(void)
{
#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
	if (ek_have_2mmc()) {
		ek_mmc_data.slot[0].bus_width = 4;
		ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
	}
	at91_add_device_mci(0, &ek_mmc_data);
#else
	at91_add_device_mmc(0, &ek_mmc_data);
#endif
}

/*
 * LEDs
 */
static struct gpio_led ek_leds[] = {
	{	/* "bottom" led, green, userled1 to be defined */
		.name			= "ds5",
		.gpio			= AT91_PIN_PA6,
		.active_low		= 1,
		.default_trigger	= "none",
	},
	{	/* "power" led, yellow */
		.name			= "ds1",
		.gpio			= AT91_PIN_PA9,
		.default_trigger	= "heartbeat",
	}
};

static void __init ek_add_device_gpio_leds(void)
{
	if (ek_have_2mmc()) {
		ek_leds[0].gpio = AT91_PIN_PB8;
		ek_leds[1].gpio = AT91_PIN_PB9;
	}

	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
}

/*
 * GPIO Buttons
 */
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button ek_buttons[] = {
	{
		.gpio		= AT91_PIN_PA30,
		.code		= BTN_3,
		.desc		= "Button 3",
		.active_low	= 1,
		.wakeup		= 1,
	},
	{
		.gpio		= AT91_PIN_PA31,
		.code		= BTN_4,
		.desc		= "Button 4",
		.active_low	= 1,
		.wakeup		= 1,
	}
};

static struct gpio_keys_platform_data ek_button_data = {
	.buttons	= ek_buttons,
	.nbuttons	= ARRAY_SIZE(ek_buttons),
};

static struct platform_device ek_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.num_resources	= 0,
	.dev		= {
		.platform_data	= &ek_button_data,
	}
};

static void __init ek_add_device_buttons(void)
{
	at91_set_gpio_input(AT91_PIN_PA30, 1);	/* btn3 */
	at91_set_deglitch(AT91_PIN_PA30, 1);
	at91_set_gpio_input(AT91_PIN_PA31, 1);	/* btn4 */
	at91_set_deglitch(AT91_PIN_PA31, 1);

	platform_device_register(&ek_button_device);
}
#else
static void __init ek_add_device_buttons(void) {}
#endif

#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
	REGULATOR_SUPPLY("AVDD", "0-001b"),
	REGULATOR_SUPPLY("HPVDD", "0-001b"),
	REGULATOR_SUPPLY("DBVDD", "0-001b"),
	REGULATOR_SUPPLY("DCVDD", "0-001b"),
};

static struct regulator_init_data ek_avdd_reg_init_data = {
	.constraints	= {
		.name	= "3V3",
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
	.consumer_supplies = ek_audio_consumer_supplies,
	.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


static struct i2c_board_info __initdata ek_i2c_devices[] = {
        {
                I2C_BOARD_INFO("24c512", 0x50)
        },
        {
                I2C_BOARD_INFO("wm8731", 0x1b)
        },
};


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 */
	ek_add_device_nand();
	/* Ethernet */
	ek_add_device_macb();
	/* Regulators */
	ek_add_regulators();
	/* MMC */
	ek_add_device_mmc();
	/* I2C */
	at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
	/* LEDs */
	ek_add_device_gpio_leds();
	/* Push Buttons */
	ek_add_device_buttons();
	/* 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);
}

MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
	/* Maintainer: Atmel */
	.boot_params	= AT91_SDRAM_BASE + 0x100,
	.timer		= &at91sam926x_timer,
	.map_io		= ek_map_io,
	.init_irq	= ek_init_irq,
	.init_machine	= ek_board_init,
MACHINE_END

MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
	/* Maintainer: Atmel */
	.boot_params	= AT91_SDRAM_BASE + 0x100,
	.timer		= &at91sam926x_timer,
	.map_io		= ek_map_io,
	.init_irq	= ek_init_irq,
	.init_machine	= ek_board_init,
MACHINE_END
Commit	Line	Data
61352667	1	/*
	2	* Copyright (C) 2005 SAN People
	3	* Copyright (C) 2008 Atmel
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	18	*/
	19
	20	#include <linux/types.h>
	21	#include <linux/init.h>
	22	#include <linux/mm.h>
	23	#include <linux/module.h>
	24	#include <linux/platform_device.h>
	25	#include <linux/spi/spi.h>
	26	#include <linux/spi/at73c213.h>
59c5fe6d NF	27	#include <linux/gpio_keys.h>
59c5fe6d NF	28	#include <linux/input.h>
61352667	29	#include <linux/clk.h>
5e886f68 DES	30	#include <linux/regulator/machine.h>
	31	#include <linux/regulator/fixed.h>
	32	#include <linux/regulator/consumer.h>
61352667	33
a09e64fb	34	#include <mach/hardware.h>
61352667	35	#include <asm/setup.h>
	36	#include <asm/mach-types.h>
	37	#include <asm/irq.h>
	38
	39	#include <asm/mach/arch.h>
	40	#include <asm/mach/map.h>
	41	#include <asm/mach/irq.h>
	42
a09e64fb RK	43	#include <mach/board.h>
a09e64fb RK	44	#include <mach/gpio.h>
8cdae51a	45	#include <mach/at91sam9_smc.h>
61352667	46
8cdae51a	47	#include "sam9_smc.h"
61352667	48	#include "generic.h"
61352667	49
a6e016f1 JCPV	50	/*
	51	* board revision encoding
	52	* bit 0:
	53	* 0 => 1 sd/mmc slot
	54	* 1 => 2 sd/mmc slots connectors (board from revision C)
	55	*/
	56	#define HAVE_2MMC (1 << 0)
	57	static int inline ek_have_2mmc(void)
	58	{
	59	return machine_is_at91sam9g20ek_2mmc() \|\| (system_rev & HAVE_2MMC);
	60	}
	61
61352667	62
	63	static void __init ek_map_io(void)
	64	{
	65	/* Initialize processor: 18.432 MHz crystal */
	66	at91sam9260_initialize(18432000);
	67
4f37940d	68	/* DBGU on ttyS0. (Rx & Tx only) */
61352667	69	at91_register_uart(0, 0, 0);
	70
	71	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
	72	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS \| ATMEL_UART_RTS
	73	\| ATMEL_UART_DTR \| ATMEL_UART_DSR \| ATMEL_UART_DCD
	74	\| ATMEL_UART_RI);
	75
	76	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
	77	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS \| ATMEL_UART_RTS);
	78
	79	/* set serial console to ttyS0 (ie, DBGU) */
	80	at91_set_serial_console(0);
	81	}
	82
	83	static void __init ek_init_irq(void)
	84	{
	85	at91sam9260_init_interrupts(NULL);
	86	}
	87
	88
	89	/*
	90	* USB Host port
	91	*/
	92	static struct at91_usbh_data __initdata ek_usbh_data = {
	93	.ports = 2,
	94	};
	95
	96	/*
	97	* USB Device port
	98	*/
	99	static struct at91_udc_data __initdata ek_udc_data = {
	100	.vbus_pin = AT91_PIN_PC5,
	101	.pullup_pin = 0, /* pull-up driven by UDC */
	102	};
	103
	104
	105	/*
	106	* SPI devices.
	107	*/
	108	static struct spi_board_info ek_spi_devices[] = {
a6e016f1	109	#if !(defined(CONFIG_MMC_ATMELMCI) \|\| defined(CONFIG_MMC_AT91))
61352667	110	{ /* DataFlash chip */
	111	.modalias = "mtd_dataflash",
	112	.chip_select = 1,
	113	.max_speed_hz = 15 * 1000 * 1000,
	114	.bus_num = 0,
	115	},
	116	#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
	117	{ /* DataFlash card */
	118	.modalias = "mtd_dataflash",
	119	.chip_select = 0,
	120	.max_speed_hz = 15 * 1000 * 1000,
	121	.bus_num = 0,
	122	},
	123	#endif
	124	#endif
	125	};
	126
	127
	128	/*
	129	* MACB Ethernet device
	130	*/
	131	static struct at91_eth_data __initdata ek_macb_data = {
	132	.phy_irq_pin = AT91_PIN_PA7,
	133	.is_rmii = 1,
	134	};
	135
a6e016f1 JCPV	136	static void __init ek_add_device_macb(void)
	137	{
	138	if (ek_have_2mmc())
	139	ek_macb_data.phy_irq_pin = AT91_PIN_PB0;
	140
	141	at91_add_device_eth(&ek_macb_data);
	142	}
61352667	143
	144	/*
	145	* NAND flash
	146	*/
	147	static struct mtd_partition __initdata ek_nand_partition[] = {
	148	{
	149	.name = "Bootstrap",
	150	.offset = 0,
e505240b	151	.size = 4 * SZ_1M,
61352667	152	},
	153	{
	154	.name = "Partition 1",
e505240b AV	155	.offset = MTDPART_OFS_NXTBLK,
e505240b AV	156	.size = 60 * SZ_1M,
61352667	157	},
	158	{
	159	.name = "Partition 2",
e505240b	160	.offset = MTDPART_OFS_NXTBLK,
61352667	161	.size = MTDPART_SIZ_FULL,
	162	},
	163	};
	164
	165	static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
	166	{
	167	*num_partitions = ARRAY_SIZE(ek_nand_partition);
	168	return ek_nand_partition;
	169	}
	170
	171	/* det_pin is not connected */
7c896834	172	static struct atmel_nand_data __initdata ek_nand_data = {
61352667	173	.ale = 21,
	174	.cle = 22,
	175	.rdy_pin = AT91_PIN_PC13,
	176	.enable_pin = AT91_PIN_PC14,
	177	.partition_info = nand_partitions,
f6ed6f78	178	#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
61352667	179	.bus_width_16 = 1,
	180	#else
	181	.bus_width_16 = 0,
	182	#endif
	183	};
	184
8cdae51a AV	185	static struct sam9_smc_config __initdata ek_nand_smc_config = {
	186	.ncs_read_setup = 0,
	187	.nrd_setup = 2,
	188	.ncs_write_setup = 0,
	189	.nwe_setup = 2,
	190
	191	.ncs_read_pulse = 4,
	192	.nrd_pulse = 4,
	193	.ncs_write_pulse = 4,
	194	.nwe_pulse = 4,
	195
	196	.read_cycle = 7,
	197	.write_cycle = 7,
	198
	199	.mode = AT91_SMC_READMODE \| AT91_SMC_WRITEMODE \| AT91_SMC_EXNWMODE_DISABLE,
	200	.tdf_cycles = 3,
	201	};
	202
	203	static void __init ek_add_device_nand(void)
	204	{
	205	/* setup bus-width (8 or 16) */
	206	if (ek_nand_data.bus_width_16)
	207	ek_nand_smc_config.mode \|= AT91_SMC_DBW_16;
	208	else
	209	ek_nand_smc_config.mode \|= AT91_SMC_DBW_8;
	210
	211	/* configure chip-select 3 (NAND) */
	212	sam9_smc_configure(3, &ek_nand_smc_config);
	213
	214	at91_add_device_nand(&ek_nand_data);
	215	}
	216
61352667	217
	218	/*
	219	* MCI (SD/MMC)
a6e016f1	220	* wp_pin and vcc_pin are not connected
61352667	221	*/
a6e016f1 JCPV	222	#if defined(CONFIG_MMC_ATMELMCI) \|\| defined(CONFIG_MMC_ATMELMCI_MODULE)
	223	static struct mci_platform_data __initdata ek_mmc_data = {
	224	.slot[1] = {
	225	.bus_width = 4,
	226	.detect_pin = AT91_PIN_PC9,
	227	},
	228
	229	};
	230	#else
61352667	231	static struct at91_mmc_data __initdata ek_mmc_data = {
a6e016f1	232	.slot_b = 1, /* Only one slot so use slot B */
61352667	233	.wire4 = 1,
a6e016f1	234	.det_pin = AT91_PIN_PC9,
61352667	235	};
a6e016f1	236	#endif
61352667	237
a6e016f1 JCPV	238	static void __init ek_add_device_mmc(void)
	239	{
	240	#if defined(CONFIG_MMC_ATMELMCI) \|\| defined(CONFIG_MMC_ATMELMCI_MODULE)
	241	if (ek_have_2mmc()) {
	242	ek_mmc_data.slot[0].bus_width = 4;
	243	ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
	244	}
	245	at91_add_device_mci(0, &ek_mmc_data);
	246	#else
	247	at91_add_device_mmc(0, &ek_mmc_data);
	248	#endif
	249	}
61352667	250
	251	/*
	252	* LEDs
	253	*/
	254	static struct gpio_led ek_leds[] = {
	255	{ /* "bottom" led, green, userled1 to be defined */
	256	.name = "ds5",
	257	.gpio = AT91_PIN_PA6,
	258	.active_low = 1,
	259	.default_trigger = "none",
	260	},
	261	{ /* "power" led, yellow */
	262	.name = "ds1",
	263	.gpio = AT91_PIN_PA9,
	264	.default_trigger = "heartbeat",
	265	}
	266	};
	267
a6e016f1 JCPV	268	static void __init ek_add_device_gpio_leds(void)
	269	{
	270	if (ek_have_2mmc()) {
	271	ek_leds[0].gpio = AT91_PIN_PB8;
	272	ek_leds[1].gpio = AT91_PIN_PB9;
	273	}
	274
	275	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
	276	}
59c5fe6d NF	277
	278	/*
	279	* GPIO Buttons
	280	*/
	281	#if defined(CONFIG_KEYBOARD_GPIO) \|\| defined(CONFIG_KEYBOARD_GPIO_MODULE)
	282	static struct gpio_keys_button ek_buttons[] = {
	283	{
	284	.gpio = AT91_PIN_PA30,
	285	.code = BTN_3,
	286	.desc = "Button 3",
	287	.active_low = 1,
	288	.wakeup = 1,
	289	},
	290	{
	291	.gpio = AT91_PIN_PA31,
	292	.code = BTN_4,
	293	.desc = "Button 4",
	294	.active_low = 1,
	295	.wakeup = 1,
	296	}
	297	};
	298
	299	static struct gpio_keys_platform_data ek_button_data = {
	300	.buttons = ek_buttons,
	301	.nbuttons = ARRAY_SIZE(ek_buttons),
	302	};
	303
	304	static struct platform_device ek_button_device = {
	305	.name = "gpio-keys",
	306	.id = -1,
	307	.num_resources = 0,
	308	.dev = {
	309	.platform_data = &ek_button_data,
	310	}
	311	};
	312
	313	static void __init ek_add_device_buttons(void)
	314	{
	315	at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */
	316	at91_set_deglitch(AT91_PIN_PA30, 1);
	317	at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
	318	at91_set_deglitch(AT91_PIN_PA31, 1);
	319
	320	platform_device_register(&ek_button_device);
	321	}
	322	#else
	323	static void __init ek_add_device_buttons(void) {}
	324	#endif
	325
5e886f68 DES	326	#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) \|\| defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
	327	static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
	328	REGULATOR_SUPPLY("AVDD", "0-001b"),
	329	REGULATOR_SUPPLY("HPVDD", "0-001b"),
	330	REGULATOR_SUPPLY("DBVDD", "0-001b"),
	331	REGULATOR_SUPPLY("DCVDD", "0-001b"),
	332	};
	333
	334	static struct regulator_init_data ek_avdd_reg_init_data = {
	335	.constraints = {
	336	.name = "3V3",
	337	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	338	},
	339	.consumer_supplies = ek_audio_consumer_supplies,
	340	.num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies),
	341	};
	342
	343	static struct fixed_voltage_config ek_vdd_pdata = {
	344	.supply_name = "board-3V3",
	345	.microvolts = 3300000,
	346	.gpio = -EINVAL,
	347	.enabled_at_boot = 0,
	348	.init_data = &ek_avdd_reg_init_data,
	349	};
	350	static struct platform_device ek_voltage_regulator = {
	351	.name = "reg-fixed-voltage",
	352	.id = -1,
	353	.num_resources = 0,
	354	.dev = {
	355	.platform_data = &ek_vdd_pdata,
	356	},
	357	};
	358	static void __init ek_add_regulators(void)
	359	{
	360	platform_device_register(&ek_voltage_regulator);
	361	}
	362	#else
	363	static void __init ek_add_regulators(void) {}
	364	#endif
	365
59c5fe6d	366
6953e47e	367	static struct i2c_board_info __initdata ek_i2c_devices[] = {
438ff39d RA	368	{
	369	I2C_BOARD_INFO("24c512", 0x50)
	370	},
	371	{
	372	I2C_BOARD_INFO("wm8731", 0x1b)
	373	},
6953e47e DES	374	};
	375
	376
61352667	377	static void __init ek_board_init(void)
	378	{
	379	/* Serial */
	380	at91_add_device_serial();
	381	/* USB Host */
	382	at91_add_device_usbh(&ek_usbh_data);
	383	/* USB Device */
	384	at91_add_device_udc(&ek_udc_data);
	385	/* SPI */
	386	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
	387	/* NAND */
8cdae51a	388	ek_add_device_nand();
61352667	389	/* Ethernet */
a6e016f1	390	ek_add_device_macb();
5e886f68 DES	391	/* Regulators */
5e886f68 DES	392	ek_add_regulators();
61352667	393	/* MMC */
a6e016f1	394	ek_add_device_mmc();
61352667	395	/* I2C */
6953e47e	396	at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
61352667	397	/* LEDs */
a6e016f1	398	ek_add_device_gpio_leds();
59c5fe6d NF	399	/* Push Buttons */
59c5fe6d NF	400	ek_add_device_buttons();
423145a5 MB	401	/* PCK0 provides MCLK to the WM8731 */
	402	at91_set_B_periph(AT91_PIN_PC1, 0);
	403	/* SSC (for WM8731) */
	404	at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
61352667	405	}
	406
	407	MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
	408	/* Maintainer: Atmel */
61352667	409	.boot_params = AT91_SDRAM_BASE + 0x100,
	410	.timer = &at91sam926x_timer,
	411	.map_io = ek_map_io,
	412	.init_irq = ek_init_irq,
	413	.init_machine = ek_board_init,
	414	MACHINE_END
a6e016f1 JCPV	415
	416	MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
	417	/* Maintainer: Atmel */
a6e016f1 JCPV	418	.boot_params = AT91_SDRAM_BASE + 0x100,
	419	.timer = &at91sam926x_timer,
	420	.map_io = ek_map_io,
	421	.init_irq = ek_init_irq,
	422	.init_machine = ek_board_init,
	423	MACHINE_END