arch/arm/mach-at91/board-sam9261ek.c - maze/linux - Git at Google

 /*
  * linux/arch/arm/mach-at91/board-sam9261ek.c
  *
  *  Copyright (C) 2005 SAN People
  *  Copyright (C) 2006 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/ads7846.h>
 #include <linux/dm9000.h>

 #include <asm/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 <asm/arch/board.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/at91sam926x_mc.h>

 #include "generic.h"


 /*
  * Serial port configuration.
  *    0 .. 2 = USART0 .. USART2
  *    3      = DBGU
  */
 static struct at91_uart_config __initdata ek_uart_config = {
 	.console_tty	= 0,				/* ttyS0 */
 	.nr_tty		= 1,
 	.tty_map	= { 3, -1, -1, -1 }		/* ttyS0, ..., ttyS3 */
 };

 static void __init ek_map_io(void)
 {
 	/* Initialize processor: 18.432 MHz crystal */
 	at91sam9261_initialize(18432000);

 	/* Setup the serial ports and console */
 	at91_init_serial(&ek_uart_config);
 }

 static void __init ek_init_irq(void)
 {
 	at91sam9261_init_interrupts(NULL);
 }


 /*
  * DM9000 ethernet device
  */
 #if defined(CONFIG_DM9000)
 static struct resource at91sam9261_dm9000_resource[] = {
 	[0] = {
 		.start	= AT91_CHIPSELECT_2,
 		.end	= AT91_CHIPSELECT_2 + 3,
 		.flags	= IORESOURCE_MEM
 	},
 	[1] = {
 		.start	= AT91_CHIPSELECT_2 + 0x44,
 		.end	= AT91_CHIPSELECT_2 + 0xFF,
 		.flags	= IORESOURCE_MEM
 	},
 	[2] = {
 		.start	= AT91_PIN_PC11,
 		.end	= AT91_PIN_PC11,
 		.flags	= IORESOURCE_IRQ
 	}
 };

 static struct dm9000_plat_data dm9000_platdata = {
 	.flags		= DM9000_PLATF_16BITONLY,
 };

 static struct platform_device at91sam9261_dm9000_device = {
 	.name		= "dm9000",
 	.id		= 0,
 	.num_resources	= ARRAY_SIZE(at91sam9261_dm9000_resource),
 	.resource	= at91sam9261_dm9000_resource,
 	.dev		= {
 		.platform_data	= &dm9000_platdata,
 	}
 };

 static void __init ek_add_device_dm9000(void)
 {
 	/*
 	 * Configure Chip-Select 2 on SMC for the DM9000.
 	 * Note: These timings were calculated for MASTER_CLOCK = 100000000
 	 *  according to the DM9000 timings.
 	 */
 	at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
 	at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
 	at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
 	at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));

 	/* Configure Reset signal as output */
 	at91_set_gpio_output(AT91_PIN_PC10, 0);

 	/* Configure Interrupt pin as input, no pull-up */
 	at91_set_gpio_input(AT91_PIN_PC11, 0);

 	platform_device_register(&at91sam9261_dm9000_device);
 }
 #else
 static void __init ek_add_device_dm9000(void) {}
 #endif /* CONFIG_DM9000 */


 /*
  * 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_PB29,
 	.pullup_pin	= 0,		/* pull-up driven by UDC */
 };


 /*
  * MCI (SD/MMC)
  */
 static struct at91_mmc_data __initdata ek_mmc_data = {
 	.wire4		= 1,
 //	.det_pin	= ... not connected
 //	.wp_pin		= ... not connected
 //	.vcc_pin	= ... not connected
 };


 /*
  * NAND flash
  */
 static struct mtd_partition __initdata ek_nand_partition[] = {
 	{
 		.name	= "Partition 1",
 		.offset	= 0,
 		.size	= 256 * 1024,
 	},
 	{
 		.name	= "Partition 2",
 		.offset	= 256 * 1024 ,
 		.size	= MTDPART_SIZ_FULL,
 	},
 };

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

 static struct at91_nand_data __initdata ek_nand_data = {
 	.ale		= 22,
 	.cle		= 21,
 //	.det_pin	= ... not connected
 	.rdy_pin	= AT91_PIN_PC15,
 	.enable_pin	= AT91_PIN_PC14,
 	.partition_info	= nand_partitions,
 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
 	.bus_width_16	= 1,
 #else
 	.bus_width_16	= 0,
 #endif
 };

 /*
  * ADS7846 Touchscreen
  */
 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)

 static int ads7843_pendown_state(void)
 {
 	return !at91_get_gpio_value(AT91_PIN_PC2);	/* Touchscreen PENIRQ */
 }

 static struct ads7846_platform_data ads_info = {
 	.model			= 7843,
 	.x_min			= 150,
 	.x_max			= 3830,
 	.y_min			= 190,
 	.y_max			= 3830,
 	.vref_delay_usecs	= 100,
 	.x_plate_ohms		= 450,
 	.y_plate_ohms		= 250,
 	.pressure_max		= 15000,
 	.debounce_max		= 1,
 	.debounce_rep		= 0,
 	.debounce_tol		= (~0),
 	.get_pendown_state	= ads7843_pendown_state,
 };

 static void __init ek_add_device_ts(void)
 {
 	at91_set_B_periph(AT91_PIN_PC2, 1);	/* External IRQ0, with pullup */
 	at91_set_gpio_input(AT91_PIN_PA11, 1);	/* Touchscreen BUSY signal */
 }
 #else
 static void __init ek_add_device_ts(void) {}
 #endif

 /*
  * SPI devices
  */
 static struct spi_board_info ek_spi_devices[] = {
 	{	/* DataFlash chip */
 		.modalias	= "mtd_dataflash",
 		.chip_select	= 0,
 		.max_speed_hz	= 15 * 1000 * 1000,
 		.bus_num	= 0,
 	},
 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
 	{
 		.modalias	= "ads7846",
 		.chip_select	= 2,
 		.max_speed_hz	= 125000 * 26,	/* (max sample rate @ 3V) * (cmd + data + overhead) */
 		.bus_num	= 0,
 		.platform_data	= &ads_info,
 		.irq		= AT91SAM9261_ID_IRQ0,
 	},
 #endif
 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
 	{	/* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
 		.modalias	= "mtd_dataflash",
 		.chip_select	= 3,
 		.max_speed_hz	= 15 * 1000 * 1000,
 		.bus_num	= 0,
 	},
 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
 	{	/* AT73C213 DAC */
 		.modalias	= "at73c213",
 		.chip_select	= 3,
 		.max_speed_hz	= 10 * 1000 * 1000,
 		.bus_num	= 0,
 	},
 #endif
 };


 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);
 	/* I2C */
 	at91_add_device_i2c();
 	/* NAND */
 	at91_add_device_nand(&ek_nand_data);
 	/* DM9000 ethernet */
 	ek_add_device_dm9000();

 	/* spi0 and mmc/sd share the same PIO pins */
 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 	/* SPI */
 	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
 	/* Touchscreen */
 	ek_add_device_ts();
 #else
 	/* MMC */
 	at91_add_device_mmc(0, &ek_mmc_data);
 #endif
 }

 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
 	/* Maintainer: Atmel */
 	.phys_io	= AT91_BASE_SYS,
 	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 	.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
	/*
	* linux/arch/arm/mach-at91/board-sam9261ek.c
	*
	* Copyright (C) 2005 SAN People
	* Copyright (C) 2006 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/ads7846.h>
	#include <linux/dm9000.h>

	#include <asm/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 <asm/arch/board.h>
	#include <asm/arch/gpio.h>
	#include <asm/arch/at91sam926x_mc.h>

	#include "generic.h"


	/*
	* Serial port configuration.
	* 0 .. 2 = USART0 .. USART2
	* 3 = DBGU
	*/
	static struct at91_uart_config __initdata ek_uart_config = {
	.console_tty = 0, /* ttyS0 */
	.nr_tty = 1,
	.tty_map = { 3, -1, -1, -1 } /* ttyS0, ..., ttyS3 */
	};

	static void __init ek_map_io(void)
	{
	/* Initialize processor: 18.432 MHz crystal */
	at91sam9261_initialize(18432000);

	/* Setup the serial ports and console */
	at91_init_serial(&ek_uart_config);
	}

	static void __init ek_init_irq(void)
	{
	at91sam9261_init_interrupts(NULL);
	}


	/*
	* DM9000 ethernet device
	*/
	#if defined(CONFIG_DM9000)
	static struct resource at91sam9261_dm9000_resource[] = {
	[0] = {
	.start = AT91_CHIPSELECT_2,
	.end = AT91_CHIPSELECT_2 + 3,
	.flags = IORESOURCE_MEM
	},
	[1] = {
	.start = AT91_CHIPSELECT_2 + 0x44,
	.end = AT91_CHIPSELECT_2 + 0xFF,
	.flags = IORESOURCE_MEM
	},
	[2] = {
	.start = AT91_PIN_PC11,
	.end = AT91_PIN_PC11,
	.flags = IORESOURCE_IRQ
	}
	};

	static struct dm9000_plat_data dm9000_platdata = {
	.flags = DM9000_PLATF_16BITONLY,
	};

	static struct platform_device at91sam9261_dm9000_device = {
	.name = "dm9000",
	.id = 0,
	.num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource),
	.resource = at91sam9261_dm9000_resource,
	.dev = {
	.platform_data = &dm9000_platdata,
	}
	};

	static void __init ek_add_device_dm9000(void)
	{
	/*
	* Configure Chip-Select 2 on SMC for the DM9000.
	* Note: These timings were calculated for MASTER_CLOCK = 100000000
	* according to the DM9000 timings.
	*/
	at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) \| AT91_SMC_NCS_WRSETUP_(0) \| AT91_SMC_NRDSETUP_(2) \| AT91_SMC_NCS_RDSETUP_(0));
	at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) \| AT91_SMC_NCS_WRPULSE_(8) \| AT91_SMC_NRDPULSE_(4) \| AT91_SMC_NCS_RDPULSE_(8));
	at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) \| AT91_SMC_NRDCYCLE_(16));
	at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE \| AT91_SMC_WRITEMODE \| AT91_SMC_EXNWMODE_DISABLE \| AT91_SMC_BAT_WRITE \| AT91_SMC_DBW_16 \| AT91_SMC_TDF_(1));

	/* Configure Reset signal as output */
	at91_set_gpio_output(AT91_PIN_PC10, 0);

	/* Configure Interrupt pin as input, no pull-up */
	at91_set_gpio_input(AT91_PIN_PC11, 0);

	platform_device_register(&at91sam9261_dm9000_device);
	}
	#else
	static void __init ek_add_device_dm9000(void) {}
	#endif /* CONFIG_DM9000 */


	/*
	* 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_PB29,
	.pullup_pin = 0, /* pull-up driven by UDC */
	};


	/*
	* MCI (SD/MMC)
	*/
	static struct at91_mmc_data __initdata ek_mmc_data = {
	.wire4 = 1,
	// .det_pin = ... not connected
	// .wp_pin = ... not connected
	// .vcc_pin = ... not connected
	};


	/*
	* NAND flash
	*/
	static struct mtd_partition __initdata ek_nand_partition[] = {
	{
	.name = "Partition 1",
	.offset = 0,
	.size = 256 * 1024,
	},
	{
	.name = "Partition 2",
	.offset = 256 * 1024 ,
	.size = MTDPART_SIZ_FULL,
	},
	};

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

	static struct at91_nand_data __initdata ek_nand_data = {
	.ale = 22,
	.cle = 21,
	// .det_pin = ... not connected
	.rdy_pin = AT91_PIN_PC15,
	.enable_pin = AT91_PIN_PC14,
	.partition_info = nand_partitions,
	#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
	.bus_width_16 = 1,
	#else
	.bus_width_16 = 0,
	#endif
	};

	/*
	* ADS7846 Touchscreen
	*/
	#if defined(CONFIG_TOUCHSCREEN_ADS7846) \|\| defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)

	static int ads7843_pendown_state(void)
	{
	return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
	}

	static struct ads7846_platform_data ads_info = {
	.model = 7843,
	.x_min = 150,
	.x_max = 3830,
	.y_min = 190,
	.y_max = 3830,
	.vref_delay_usecs = 100,
	.x_plate_ohms = 450,
	.y_plate_ohms = 250,
	.pressure_max = 15000,
	.debounce_max = 1,
	.debounce_rep = 0,
	.debounce_tol = (~0),
	.get_pendown_state = ads7843_pendown_state,
	};

	static void __init ek_add_device_ts(void)
	{
	at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
	at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
	}
	#else
	static void __init ek_add_device_ts(void) {}
	#endif

	/*
	* SPI devices
	*/
	static struct spi_board_info ek_spi_devices[] = {
	{ /* DataFlash chip */
	.modalias = "mtd_dataflash",
	.chip_select = 0,
	.max_speed_hz = 15 * 1000 * 1000,
	.bus_num = 0,
	},
	#if defined(CONFIG_TOUCHSCREEN_ADS7846) \|\| defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
	{
	.modalias = "ads7846",
	.chip_select = 2,
	.max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
	.bus_num = 0,
	.platform_data = &ads_info,
	.irq = AT91SAM9261_ID_IRQ0,
	},
	#endif
	#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
	{ /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
	.modalias = "mtd_dataflash",
	.chip_select = 3,
	.max_speed_hz = 15 * 1000 * 1000,
	.bus_num = 0,
	},
	#elif defined(CONFIG_SND_AT73C213) \|\| defined(CONFIG_SND_AT73C213_MODULE)
	{ /* AT73C213 DAC */
	.modalias = "at73c213",
	.chip_select = 3,
	.max_speed_hz = 10 * 1000 * 1000,
	.bus_num = 0,
	},
	#endif
	};


	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);
	/* I2C */
	at91_add_device_i2c();
	/* NAND */
	at91_add_device_nand(&ek_nand_data);
	/* DM9000 ethernet */
	ek_add_device_dm9000();

	/* spi0 and mmc/sd share the same PIO pins */
	#if defined(CONFIG_SPI_ATMEL) \|\| defined(CONFIG_SPI_ATMEL_MODULE)
	/* SPI */
	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
	/* Touchscreen */
	ek_add_device_ts();
	#else
	/* MMC */
	at91_add_device_mmc(0, &ek_mmc_data);
	#endif
	}

	MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
	/* Maintainer: Atmel */
	.phys_io = AT91_BASE_SYS,
	.io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
	.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