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Commit 378ac65e authored by Nicolas Ferre's avatar Nicolas Ferre Committed by Russell King
Browse files

ARM: 5709/1: at91: add AC97 support to at91sam9g45 series and at91sam9m10g45ek board 



Add the support of AC97 on the at91sam9g45 chip series and -ek board.
It will share the code with AVR32 ac97c alsa driver "atmel_ac97c".

Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: default avatarAndrew Victor <linux@maxim.org.za>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 28f9f19d

arch/arm/mach-at91/at91sam9g45_devices.c

+55 −0
Original line number Diff line number Diff line
@@ -597,6 +597,61 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) 
#endif





/* --------------------------------------------------------------------

 *  AC97

 * -------------------------------------------------------------------- */



#if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)

static u64 ac97_dmamask = DMA_BIT_MASK(32);

static struct ac97c_platform_data ac97_data;



static struct resource ac97_resources[] = {

	[0] = {

		.start	= AT91SAM9G45_BASE_AC97C,

		.end	= AT91SAM9G45_BASE_AC97C + SZ_16K - 1,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= AT91SAM9G45_ID_AC97C,

		.end	= AT91SAM9G45_ID_AC97C,

		.flags	= IORESOURCE_IRQ,

	},

};



static struct platform_device at91sam9g45_ac97_device = {

	.name		= "atmel_ac97c",

	.id		= 0,

	.dev		= {

				.dma_mask		= &ac97_dmamask,

				.coherent_dma_mask	= DMA_BIT_MASK(32),

				.platform_data		= &ac97_data,

	},

	.resource	= ac97_resources,

	.num_resources	= ARRAY_SIZE(ac97_resources),

};



void __init at91_add_device_ac97(struct ac97c_platform_data *data)

{

	if (!data)

		return;



	at91_set_A_periph(AT91_PIN_PD8, 0);	/* AC97FS */

	at91_set_A_periph(AT91_PIN_PD9, 0);	/* AC97CK */

	at91_set_A_periph(AT91_PIN_PD7, 0);	/* AC97TX */

	at91_set_A_periph(AT91_PIN_PD6, 0);	/* AC97RX */



	/* reset */

	if (data->reset_pin)

		at91_set_gpio_output(data->reset_pin, 0);



	ac97_data = *data;

	platform_device_register(&at91sam9g45_ac97_device);

}

#else

void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}

#endif





/* --------------------------------------------------------------------

 *  LCD Controller

 * -------------------------------------------------------------------- */

arch/arm/mach-at91/board-sam9m10g45ek.c

+10 −0
Original line number Diff line number Diff line
@@ -310,6 +310,14 @@ static void __init ek_add_device_buttons(void) {} 
#endif





/*

 * AC97

 * reset_pin is not connected: NRST

 */

static struct ac97c_platform_data ek_ac97_data = {

};





/*

 * LEDs ... these could all be PWM-driven, for variable brightness

 */
@@ -372,6 +380,8 @@ static void __init ek_board_init(void) 
	at91_add_device_lcdc(&ek_lcdc_data);

	/* Push Buttons */

	ek_add_device_buttons();

	/* AC97 */

	at91_add_device_ac97(&ek_ac97_data);

	/* LEDs */

	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));

	at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));