Add platform support for the EP93xx AC97 controller driver.
Signed-off-by: Mika Westerberg mika.westerberg@iki.fi --- arch/arm/mach-ep93xx/core.c | 32 +++++++++++++++++++++++ arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h | 1 + arch/arm/mach-ep93xx/include/mach/platform.h | 1 + 3 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c index 4cb55d3..6f514c4 100644 --- a/arch/arm/mach-ep93xx/core.c +++ b/arch/arm/mach-ep93xx/core.c @@ -826,6 +826,38 @@ 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); +} + extern void ep93xx_gpio_init(void);
void __init ep93xx_init_devices(void) diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h index c54b3e5..9ac4d10 100644 --- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h +++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h @@ -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) diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h b/arch/arm/mach-ep93xx/include/mach/platform.h index 3330b36..5066045 100644 --- a/arch/arm/mach-ep93xx/include/mach/platform.h +++ b/arch/arm/mach-ep93xx/include/mach/platform.h @@ -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;