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Commit 5e9df924 authored by Andrew Victor's avatar Andrew Victor Committed by Russell King
Browse files

[ARM] 4910/1: [AT91] AT73C213 audio on SAM9260-EK and SAM9261-EK boards 



Add support for AT73C213 audio DAC on the Atmel SAM9260-EK and
SAM9261-EK boards.

Signed-off-by: default avatarSedji Gaouaou <sedji.gaouaou@atmel.com>
Signed-off-by: default avatarAndrew Victor <linux@maxim.org.za>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e5f40bfa

arch/arm/mach-at91/board-sam9260ek.c

+36 −1
Original line number Diff line number Diff line
@@ -25,6 +25,8 @@ 
#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/spi/spi.h>

#include <linux/spi/at73c213.h>

#include <linux/clk.h>



#include <asm/hardware.h>

#include <asm/setup.h>
@@ -37,7 +39,6 @@ 


#include <asm/arch/board.h>

#include <asm/arch/gpio.h>

#include <asm/arch/at91sam9_smc.h>



#include "generic.h"
@@ -84,6 +85,35 @@ static struct at91_udc_data __initdata ek_udc_data = { 
};





/*

 * Audio

 */

static struct at73c213_board_info at73c213_data = {

	.ssc_id		= 0,

	.shortname	= "AT91SAM9260-EK external DAC",

};



#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)

static void __init at73c213_set_clk(struct at73c213_board_info *info)

{

	struct clk *pck0;

	struct clk *plla;



	pck0 = clk_get(NULL, "pck0");

	plla = clk_get(NULL, "plla");



	/* AT73C213 MCK Clock */

	at91_set_B_periph(AT91_PIN_PC1, 0);	/* PCK0 */



	clk_set_parent(pck0, plla);

	clk_put(plla);



	info->dac_clk = pck0;

}

#else

static void __init at73c213_set_clk(struct at73c213_board_info *info) {}

#endif



/*

 * SPI devices.

 */
@@ -110,6 +140,8 @@ static struct spi_board_info ek_spi_devices[] = { 
		.chip_select	= 0,

		.max_speed_hz	= 10 * 1000 * 1000,

		.bus_num	= 1,

		.mode		= SPI_MODE_1,

		.platform_data	= &at73c213_data,

	},

#endif

};
@@ -190,6 +222,9 @@ static void __init ek_board_init(void) 
	at91_add_device_mmc(0, &ek_mmc_data);

	/* I2C */

	at91_add_device_i2c(NULL, 0);

	/* SSC (to AT73C213) */

	at73c213_set_clk(&at73c213_data);

	at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);

}



MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")

arch/arm/mach-at91/board-sam9261ek.c

+38 −0
Original line number Diff line number Diff line
@@ -26,6 +26,8 @@ 
#include <linux/platform_device.h>

#include <linux/spi/spi.h>

#include <linux/spi/ads7846.h>

#include <linux/spi/at73c213.h>

#include <linux/clk.h>

#include <linux/dm9000.h>

#include <linux/fb.h>

#include <linux/gpio_keys.h>
@@ -230,6 +232,35 @@ static void __init ek_add_device_ts(void) 
static void __init ek_add_device_ts(void) {}

#endif



/*

 * Audio

 */

static struct at73c213_board_info at73c213_data = {

	.ssc_id		= 1,

	.shortname	= "AT91SAM9261-EK external DAC",

};



#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)

static void __init at73c213_set_clk(struct at73c213_board_info *info)

{

	struct clk *pck2;

	struct clk *plla;



	pck2 = clk_get(NULL, "pck2");

	plla = clk_get(NULL, "plla");



	/* AT73C213 MCK Clock */

	at91_set_B_periph(AT91_PIN_PB31, 0);	/* PCK2 */



	clk_set_parent(pck2, plla);

	clk_put(plla);



	info->dac_clk = pck2;

}

#else

static void __init at73c213_set_clk(struct at73c213_board_info *info) {}

#endif



/*

 * SPI devices

 */
@@ -248,6 +279,7 @@ static struct spi_board_info ek_spi_devices[] = { 
		.bus_num	= 0,

		.platform_data	= &ads_info,

		.irq		= AT91SAM9261_ID_IRQ0,

		.controller_data = (void *) AT91_PIN_PA28,	/* CS pin */

	},

#endif

#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
@@ -263,6 +295,9 @@ static struct spi_board_info ek_spi_devices[] = { 
		.chip_select	= 3,

		.max_speed_hz	= 10 * 1000 * 1000,

		.bus_num	= 0,

		.mode		= SPI_MODE_1,

		.platform_data	= &at73c213_data,

		.controller_data = (void*) AT91_PIN_PA29,	/* default for CS3 is PA6, but it must be PA29 */

	},

#endif

};
@@ -473,6 +508,9 @@ static void __init ek_board_init(void) 
	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));

	/* Touchscreen */

	ek_add_device_ts();

	/* SSC (to AT73C213) */

	at73c213_set_clk(&at73c213_data);

	at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);

#else

	/* MMC */

	at91_add_device_mmc(0, &ek_mmc_data);