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| author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2009-09-18 17:14:21 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-21 17:03:01 +0200 |
| commit | 439a33074c7d0895dd1e13ac354b8b4505d3ea43 (patch) | |
| tree | e1c251dbdfd7c81abf03b8eb4ecca2ba369c4973 /arch/arm/mach-at91/at91sam9rl_devices.c | |
| parent | ARM: 5709/1: at91: add AC97 support to at91sam9g45 series and at91sam9m10g45e... (diff) | |
| download | linux-439a33074c7d0895dd1e13ac354b8b4505d3ea43.tar.xz linux-439a33074c7d0895dd1e13ac354b8b4505d3ea43.zip | |
ARM: 5710/1: at91: add AC97 support to at91sam9rl and at91sam9rlek board
Add the support of AC97 on the at91sam9rl chip 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>
Diffstat (limited to 'arch/arm/mach-at91/at91sam9rl_devices.c')
| -rw-r--r-- | arch/arm/mach-at91/at91sam9rl_devices.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index 1c2dced8748d..d345f5453dbe 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -444,6 +444,61 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) /* -------------------------------------------------------------------- + * 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 = AT91SAM9RL_BASE_AC97C, + .end = AT91SAM9RL_BASE_AC97C + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = AT91SAM9RL_ID_AC97C, + .end = AT91SAM9RL_ID_AC97C, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device at91sam9rl_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_PD1, 0); /* AC97FS */ + at91_set_A_periph(AT91_PIN_PD2, 0); /* AC97CK */ + at91_set_A_periph(AT91_PIN_PD3, 0); /* AC97TX */ + at91_set_A_periph(AT91_PIN_PD4, 0); /* AC97RX */ + + /* reset */ + if (data->reset_pin) + at91_set_gpio_output(data->reset_pin, 0); + + ac97_data = *data; + platform_device_register(&at91sam9rl_ac97_device); +} +#else +void __init at91_add_device_ac97(struct ac97c_platform_data *data) {} +#endif + + +/* -------------------------------------------------------------------- * LCD Controller * -------------------------------------------------------------------- */ |