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: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -597,6 +597,61 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
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#endif
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/* --------------------------------------------------------------------
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* AC97
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* -------------------------------------------------------------------- */
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#if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
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static u64 ac97_dmamask = DMA_BIT_MASK(32);
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static struct ac97c_platform_data ac97_data;
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static struct resource ac97_resources[] = {
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[0] = {
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.start = AT91SAM9G45_BASE_AC97C,
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.end = AT91SAM9G45_BASE_AC97C + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AT91SAM9G45_ID_AC97C,
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.end = AT91SAM9G45_ID_AC97C,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device at91sam9g45_ac97_device = {
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.name = "atmel_ac97c",
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.id = 0,
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.dev = {
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.dma_mask = &ac97_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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.platform_data = &ac97_data,
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},
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.resource = ac97_resources,
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.num_resources = ARRAY_SIZE(ac97_resources),
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};
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void __init at91_add_device_ac97(struct ac97c_platform_data *data)
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{
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if (!data)
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return;
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at91_set_A_periph(AT91_PIN_PD8, 0); /* AC97FS */
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at91_set_A_periph(AT91_PIN_PD9, 0); /* AC97CK */
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at91_set_A_periph(AT91_PIN_PD7, 0); /* AC97TX */
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at91_set_A_periph(AT91_PIN_PD6, 0); /* AC97RX */
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/* reset */
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if (data->reset_pin)
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at91_set_gpio_output(data->reset_pin, 0);
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ac97_data = *data;
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platform_device_register(&at91sam9g45_ac97_device);
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}
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#else
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void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
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#endif
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/* --------------------------------------------------------------------
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* LCD Controller
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* -------------------------------------------------------------------- */
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@ -310,6 +310,14 @@ static void __init ek_add_device_buttons(void) {}
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#endif
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/*
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* AC97
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* reset_pin is not connected: NRST
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*/
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static struct ac97c_platform_data ek_ac97_data = {
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};
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/*
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* LEDs ... these could all be PWM-driven, for variable brightness
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*/
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@ -372,6 +380,8 @@ static void __init ek_board_init(void)
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at91_add_device_lcdc(&ek_lcdc_data);
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/* Push Buttons */
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ek_add_device_buttons();
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/* AC97 */
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at91_add_device_ac97(&ek_ac97_data);
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/* LEDs */
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at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
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at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
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