[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/gpio.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 <linux/platform_data/at91_adc.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/at91sam9_smc.h>
#include <mach/system_rev.h>

#include "at91_aic.h"
#include "board.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_init_early(void)
{
	/* Initialize processor: 18.432 MHz crystal */
	at91_initialize(18432000);
}

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

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


/*
 * SPI devices.
 */
static struct spi_board_info ek_spi_devices[] = {
#if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
	{	/* 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 macb_platform_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,
	},
};

/* 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,
	.det_pin	= -EINVAL,
	.ecc_mode	= NAND_ECC_SOFT,
	.on_flash_bbt	= 1,
	.parts		= ek_nand_partition,
	.num_parts	= ARRAY_SIZE(ek_nand_partition),
};

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)
{
	ek_nand_data.bus_width_16 = board_have_nand_16bit();
	/* 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(0, 3, &ek_nand_smc_config);

	at91_add_device_nand(&ek_nand_data);
}


/*
 * MCI (SD/MMC)
 * wp_pin and vcc_pin are not connected
 */
static struct mci_platform_data __initdata ek_mmc_data = {
	.slot[1] = {
		.bus_width	= 4,
		.detect_pin	= AT91_PIN_PC9,
		.wp_pin		= -EINVAL,
	},

};

static void __init ek_add_device_mmc(void)
{
	if (ek_have_2mmc()) {
		ek_mmc_data.slot[0].bus_width = 4;
		ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
		ek_mmc_data.slot[0].wp_pin = -1;
	}
	at91_add_device_mci(0, &ek_mmc_data);
}

/*
 * 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

/*
 * ADCs
 */

static struct at91_adc_data ek_adc_data = {
	.channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3),
	.use_external_triggers = true,
	.vref = 3300,
};

#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 struct platform_device sam9g20ek_audio_device = {
	.name   = "at91sam9g20ek-audio",
	.id     = -1,
};

static void __init ek_add_device_audio(void)
{
	platform_device_register(&sam9g20ek_audio_device);
}


static void __init ek_board_init(void)
{
	/* Serial */
	/* 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);
	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();
	/* ADCs */
	at91_add_device_adc(&ek_adc_data);
	/* 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);
	ek_add_device_audio();
}

MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
	/* Maintainer: Atmel */
	.init_time	= at91sam926x_pit_init,
	.map_io		= at91_map_io,
	.handle_irq	= at91_aic_handle_irq,
	.init_early	= ek_init_early,
	.init_irq	= at91_init_irq_default,
	.init_machine	= ek_board_init,
MACHINE_END

MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
	/* Maintainer: Atmel */
	.init_time	= at91sam926x_pit_init,
	.map_io		= at91_map_io,
	.handle_irq	= at91_aic_handle_irq,
	.init_early	= ek_init_early,
	.init_irq	= at91_init_irq_default,
	.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>
2f8163ba	21	#include <linux/gpio.h>
61352667	22	#include <linux/init.h>
	23	#include <linux/mm.h>
	24	#include <linux/module.h>
	25	#include <linux/platform_device.h>
	26	#include <linux/spi/spi.h>
	27	#include <linux/spi/at73c213.h>
59c5fe6d NF	28	#include <linux/gpio_keys.h>
59c5fe6d NF	29	#include <linux/input.h>
61352667	30	#include <linux/clk.h>
5e886f68 DES	31	#include <linux/regulator/machine.h>
	32	#include <linux/regulator/fixed.h>
	33	#include <linux/regulator/consumer.h>
61352667	34
67b5d7b3 MR	35	#include <linux/platform_data/at91_adc.h>
67b5d7b3 MR	36
a09e64fb	37	#include <mach/hardware.h>
61352667	38	#include <asm/setup.h>
	39	#include <asm/mach-types.h>
	40	#include <asm/irq.h>
	41
	42	#include <asm/mach/arch.h>
	43	#include <asm/mach/map.h>
	44	#include <asm/mach/irq.h>
	45
8cdae51a	46	#include <mach/at91sam9_smc.h>
76b2ab76	47	#include <mach/system_rev.h>
61352667	48
a510b9ba	49	#include "at91_aic.h"
43d2f532	50	#include "board.h"
8cdae51a	51	#include "sam9_smc.h"
61352667	52	#include "generic.h"
61352667	53
a6e016f1 JCPV	54	/*
	55	* board revision encoding
	56	* bit 0:
	57	* 0 => 1 sd/mmc slot
	58	* 1 => 2 sd/mmc slots connectors (board from revision C)
	59	*/
	60	#define HAVE_2MMC (1 << 0)
	61	static int inline ek_have_2mmc(void)
	62	{
	63	return machine_is_at91sam9g20ek_2mmc() \|\| (system_rev & HAVE_2MMC);
	64	}
	65
61352667	66
1b021a3b	67	static void __init ek_init_early(void)
61352667	68	{
61352667	69	/* Initialize processor: 18.432 MHz crystal */
21d08b9d	70	at91_initialize(18432000);
61352667	71	}
61352667	72
61352667	73	/*
	74	* USB Host port
	75	*/
	76	static struct at91_usbh_data __initdata ek_usbh_data = {
	77	.ports = 2,
63b4c296 JCPV	78	.vbus_pin = {-EINVAL, -EINVAL},
63b4c296 JCPV	79	.overcurrent_pin= {-EINVAL, -EINVAL},
61352667	80	};
	81
	82	/*
	83	* USB Device port
	84	*/
	85	static struct at91_udc_data __initdata ek_udc_data = {
	86	.vbus_pin = AT91_PIN_PC5,
63b4c296	87	.pullup_pin = -EINVAL, /* pull-up driven by UDC */
61352667	88	};
	89
	90
	91	/*
	92	* SPI devices.
	93	*/
	94	static struct spi_board_info ek_spi_devices[] = {
4cf3326a	95	#if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
61352667	96	{ /* DataFlash chip */
	97	.modalias = "mtd_dataflash",
	98	.chip_select = 1,
	99	.max_speed_hz = 15 * 1000 * 1000,
	100	.bus_num = 0,
	101	},
	102	#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
	103	{ /* DataFlash card */
	104	.modalias = "mtd_dataflash",
	105	.chip_select = 0,
	106	.max_speed_hz = 15 * 1000 * 1000,
	107	.bus_num = 0,
	108	},
	109	#endif
	110	#endif
	111	};
	112
	113
	114	/*
	115	* MACB Ethernet device
	116	*/
84e0cdb0	117	static struct macb_platform_data __initdata ek_macb_data = {
61352667	118	.phy_irq_pin = AT91_PIN_PA7,
	119	.is_rmii = 1,
	120	};
	121
a6e016f1 JCPV	122	static void __init ek_add_device_macb(void)
	123	{
	124	if (ek_have_2mmc())
	125	ek_macb_data.phy_irq_pin = AT91_PIN_PB0;
	126
	127	at91_add_device_eth(&ek_macb_data);
	128	}
61352667	129
	130	/*
	131	* NAND flash
	132	*/
	133	static struct mtd_partition __initdata ek_nand_partition[] = {
	134	{
	135	.name = "Bootstrap",
	136	.offset = 0,
e505240b	137	.size = 4 * SZ_1M,
61352667	138	},
	139	{
	140	.name = "Partition 1",
e505240b AV	141	.offset = MTDPART_OFS_NXTBLK,
e505240b AV	142	.size = 60 * SZ_1M,
61352667	143	},
	144	{
	145	.name = "Partition 2",
e505240b	146	.offset = MTDPART_OFS_NXTBLK,
61352667	147	.size = MTDPART_SIZ_FULL,
	148	},
	149	};
	150
61352667	151	/* det_pin is not connected */
7c896834	152	static struct atmel_nand_data __initdata ek_nand_data = {
61352667	153	.ale = 21,
	154	.cle = 22,
	155	.rdy_pin = AT91_PIN_PC13,
	156	.enable_pin = AT91_PIN_PC14,
63b4c296	157	.det_pin = -EINVAL,
bf4289cb	158	.ecc_mode = NAND_ECC_SOFT,
98619dcb	159	.on_flash_bbt = 1,
1754aab9 DES	160	.parts = ek_nand_partition,
1754aab9 DES	161	.num_parts = ARRAY_SIZE(ek_nand_partition),
61352667	162	};
61352667	163
8cdae51a AV	164	static struct sam9_smc_config __initdata ek_nand_smc_config = {
	165	.ncs_read_setup = 0,
	166	.nrd_setup = 2,
	167	.ncs_write_setup = 0,
	168	.nwe_setup = 2,
	169
	170	.ncs_read_pulse = 4,
	171	.nrd_pulse = 4,
	172	.ncs_write_pulse = 4,
	173	.nwe_pulse = 4,
	174
	175	.read_cycle = 7,
	176	.write_cycle = 7,
	177
	178	.mode = AT91_SMC_READMODE \| AT91_SMC_WRITEMODE \| AT91_SMC_EXNWMODE_DISABLE,
	179	.tdf_cycles = 3,
	180	};
	181
	182	static void __init ek_add_device_nand(void)
	183	{
64393b3a	184	ek_nand_data.bus_width_16 = board_have_nand_16bit();
8cdae51a AV	185	/* setup bus-width (8 or 16) */
	186	if (ek_nand_data.bus_width_16)
	187	ek_nand_smc_config.mode \|= AT91_SMC_DBW_16;
	188	else
	189	ek_nand_smc_config.mode \|= AT91_SMC_DBW_8;
	190
	191	/* configure chip-select 3 (NAND) */
faee0cc3	192	sam9_smc_configure(0, 3, &ek_nand_smc_config);
8cdae51a AV	193
	194	at91_add_device_nand(&ek_nand_data);
	195	}
	196
61352667	197
	198	/*
	199	* MCI (SD/MMC)
a6e016f1	200	* wp_pin and vcc_pin are not connected
61352667	201	*/
a6e016f1 JCPV	202	static struct mci_platform_data __initdata ek_mmc_data = {
	203	.slot[1] = {
	204	.bus_width = 4,
	205	.detect_pin = AT91_PIN_PC9,
63b4c296	206	.wp_pin = -EINVAL,
a6e016f1 JCPV	207	},
	208
	209	};
61352667	210
a6e016f1 JCPV	211	static void __init ek_add_device_mmc(void)
a6e016f1 JCPV	212	{
a6e016f1 JCPV	213	if (ek_have_2mmc()) {
	214	ek_mmc_data.slot[0].bus_width = 4;
	215	ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
63b4c296	216	ek_mmc_data.slot[0].wp_pin = -1;
a6e016f1 JCPV	217	}
a6e016f1 JCPV	218	at91_add_device_mci(0, &ek_mmc_data);
a6e016f1	219	}
61352667	220
	221	/*
	222	* LEDs
	223	*/
	224	static struct gpio_led ek_leds[] = {
	225	{ /* "bottom" led, green, userled1 to be defined */
	226	.name = "ds5",
	227	.gpio = AT91_PIN_PA6,
	228	.active_low = 1,
	229	.default_trigger = "none",
	230	},
	231	{ /* "power" led, yellow */
	232	.name = "ds1",
	233	.gpio = AT91_PIN_PA9,
	234	.default_trigger = "heartbeat",
	235	}
	236	};
	237
a6e016f1 JCPV	238	static void __init ek_add_device_gpio_leds(void)
	239	{
	240	if (ek_have_2mmc()) {
	241	ek_leds[0].gpio = AT91_PIN_PB8;
	242	ek_leds[1].gpio = AT91_PIN_PB9;
	243	}
	244
	245	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
	246	}
59c5fe6d NF	247
	248	/*
	249	* GPIO Buttons
	250	*/
	251	#if defined(CONFIG_KEYBOARD_GPIO) \|\| defined(CONFIG_KEYBOARD_GPIO_MODULE)
	252	static struct gpio_keys_button ek_buttons[] = {
	253	{
	254	.gpio = AT91_PIN_PA30,
	255	.code = BTN_3,
	256	.desc = "Button 3",
	257	.active_low = 1,
	258	.wakeup = 1,
	259	},
	260	{
	261	.gpio = AT91_PIN_PA31,
	262	.code = BTN_4,
	263	.desc = "Button 4",
	264	.active_low = 1,
	265	.wakeup = 1,
	266	}
	267	};
	268
	269	static struct gpio_keys_platform_data ek_button_data = {
	270	.buttons = ek_buttons,
	271	.nbuttons = ARRAY_SIZE(ek_buttons),
	272	};
	273
	274	static struct platform_device ek_button_device = {
	275	.name = "gpio-keys",
	276	.id = -1,
	277	.num_resources = 0,
	278	.dev = {
	279	.platform_data = &ek_button_data,
	280	}
	281	};
	282
	283	static void __init ek_add_device_buttons(void)
	284	{
	285	at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */
	286	at91_set_deglitch(AT91_PIN_PA30, 1);
	287	at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
	288	at91_set_deglitch(AT91_PIN_PA31, 1);
	289
	290	platform_device_register(&ek_button_device);
	291	}
	292	#else
	293	static void __init ek_add_device_buttons(void) {}
	294	#endif
	295
67b5d7b3 MR	296	/*
	297	* ADCs
	298	*/
	299
	300	static struct at91_adc_data ek_adc_data = {
	301	.channels_used = BIT(0) \| BIT(1) \| BIT(2) \| BIT(3),
	302	.use_external_triggers = true,
	303	.vref = 3300,
	304	};
	305
5e886f68 DES	306	#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) \|\| defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
	307	static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
	308	REGULATOR_SUPPLY("AVDD", "0-001b"),
	309	REGULATOR_SUPPLY("HPVDD", "0-001b"),
	310	REGULATOR_SUPPLY("DBVDD", "0-001b"),
	311	REGULATOR_SUPPLY("DCVDD", "0-001b"),
	312	};
	313
	314	static struct regulator_init_data ek_avdd_reg_init_data = {
	315	.constraints = {
	316	.name = "3V3",
	317	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	318	},
	319	.consumer_supplies = ek_audio_consumer_supplies,
	320	.num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies),
	321	};
	322
	323	static struct fixed_voltage_config ek_vdd_pdata = {
	324	.supply_name = "board-3V3",
	325	.microvolts = 3300000,
	326	.gpio = -EINVAL,
	327	.enabled_at_boot = 0,
	328	.init_data = &ek_avdd_reg_init_data,
	329	};
	330	static struct platform_device ek_voltage_regulator = {
	331	.name = "reg-fixed-voltage",
	332	.id = -1,
	333	.num_resources = 0,
	334	.dev = {
	335	.platform_data = &ek_vdd_pdata,
	336	},
	337	};
	338	static void __init ek_add_regulators(void)
	339	{
	340	platform_device_register(&ek_voltage_regulator);
	341	}
	342	#else
	343	static void __init ek_add_regulators(void) {}
	344	#endif
	345
59c5fe6d	346
6953e47e	347	static struct i2c_board_info __initdata ek_i2c_devices[] = {
438ff39d RA	348	{
	349	I2C_BOARD_INFO("24c512", 0x50)
	350	},
	351	{
	352	I2C_BOARD_INFO("wm8731", 0x1b)
	353	},
6953e47e DES	354	};
6953e47e DES	355
bac91462 BS	356	static struct platform_device sam9g20ek_audio_device = {
	357	.name = "at91sam9g20ek-audio",
	358	.id = -1,
	359	};
	360
	361	static void __init ek_add_device_audio(void)
	362	{
bac91462 BS	363	platform_device_register(&sam9g20ek_audio_device);
	364	}
	365
6953e47e	366
61352667	367	static void __init ek_board_init(void)
	368	{
	369	/* Serial */
71b149b3 JCPV	370	/* DBGU on ttyS0. (Rx & Tx only) */
	371	at91_register_uart(0, 0, 0);
	372
	373	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
	374	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS \| ATMEL_UART_RTS
	375	\| ATMEL_UART_DTR \| ATMEL_UART_DSR \| ATMEL_UART_DCD
	376	\| ATMEL_UART_RI);
	377
	378	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
	379	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS \| ATMEL_UART_RTS);
61352667	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();
67b5d7b3 MR	401	/* ADCs */
67b5d7b3 MR	402	at91_add_device_adc(&ek_adc_data);
423145a5 MB	403	/* PCK0 provides MCLK to the WM8731 */
	404	at91_set_B_periph(AT91_PIN_PC1, 0);
	405	/* SSC (for WM8731) */
	406	at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
bac91462	407	ek_add_device_audio();
61352667	408	}
	409
	410	MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
	411	/* Maintainer: Atmel */
6bb27d73	412	.init_time = at91sam926x_pit_init,
21d08b9d	413	.map_io = at91_map_io,
3e135466	414	.handle_irq = at91_aic_handle_irq,
1b021a3b	415	.init_early = ek_init_early,
92100c12	416	.init_irq = at91_init_irq_default,
61352667	417	.init_machine = ek_board_init,
61352667	418	MACHINE_END
a6e016f1 JCPV	419
	420	MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
	421	/* Maintainer: Atmel */
6bb27d73	422	.init_time = at91sam926x_pit_init,
21d08b9d	423	.map_io = at91_map_io,
3e135466	424	.handle_irq = at91_aic_handle_irq,
1b021a3b	425	.init_early = ek_init_early,
92100c12	426	.init_irq = at91_init_irq_default,
a6e016f1 JCPV	427	.init_machine = ek_board_init,
a6e016f1 JCPV	428	MACHINE_END