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ARM: ep93xx: add AC97 platform support 

Add platform support for the EP93xx AC97 controller driver.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mika Westerberg 2010-10-14 17:49:07 +03:00 committed by Mark Brown
parent aa7e1b84c6
commit 534bc7fa3c
3 changed files with 36 additions and 0 deletions
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34
arch/arm/mach-ep93xx/core.c
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@ -832,6 +832,40 @@ void ep93xx_i2s_release(void)
}
EXPORT_SYMBOL(ep93xx_i2s_release);
/*************************************************************************
* EP93xx AC97 audio peripheral handling
*************************************************************************/
static struct resource ep93xx_ac97_resources[] = {
{
.start = EP93XX_AAC_PHYS_BASE,
.end = EP93XX_AAC_PHYS_BASE + 0xb0 - 1,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_EP93XX_AACINTR,
.end = IRQ_EP93XX_AACINTR,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ep93xx_ac97_device = {
.name = "ep93xx-ac97",
.id = -1,
.num_resources = ARRAY_SIZE(ep93xx_ac97_resources),
.resource = ep93xx_ac97_resources,
};
void __init ep93xx_register_ac97(void)
{
/*
* Make sure that the AC97 pins are not used by I2S.
*/
ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97);
platform_device_register(&ep93xx_ac97_device);
platform_device_register(&ep93xx_pcm_device);
}
extern void ep93xx_gpio_init(void);
void __init ep93xx_init_devices(void)

1
arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
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@ -105,6 +105,7 @@
#define EP93XX_GPIO_B_INT_STATUS EP93XX_GPIO_REG(0xbc)
#define EP93XX_GPIO_EEDRIVE EP93XX_GPIO_REG(0xc8)
#define EP93XX_AAC_PHYS_BASE EP93XX_APB_PHYS(0x00080000)
#define EP93XX_AAC_BASE EP93XX_APB_IOMEM(0x00080000)
#define EP93XX_SPI_PHYS_BASE EP93XX_APB_PHYS(0x000a0000)

1
arch/arm/mach-ep93xx/include/mach/platform.h
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@ -61,6 +61,7 @@ void ep93xx_keypad_release_gpio(struct platform_device *pdev);
void ep93xx_register_i2s(void);
int ep93xx_i2s_acquire(unsigned i2s_pins, unsigned i2s_config);
void ep93xx_i2s_release(void);
void ep93xx_register_ac97(void);
void ep93xx_init_devices(void);
extern struct sys_timer ep93xx_timer;