[alsa-devel] [PATCH 1/2] Davinci: DM365: Add platform device for McBSP

[Miguel Aguilar]

Hi,

See the comment below:

miguel.aguilar at ridgerun.com wrote:
> From: Miguel Aguilar <miguel.aguilar at ridgerun.com>
> 
> 1) Registers the platform device for McBSP on DM365.
> 2) Add platform data to DM365 EVM board file.
> 
> Signed-off-by: Miguel Aguilar <miguel.aguilar at ridgerun.com>
> ---
>  arch/arm/mach-davinci/board-dm365-evm.c    |    4 ++
>  arch/arm/mach-davinci/dm365.c              |   42 +++++++++++++++++++++++++++-
>  arch/arm/mach-davinci/include/mach/asp.h   |    3 ++
>  arch/arm/mach-davinci/include/mach/dm365.h |    2 +
>  4 files changed, 50 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
> index f6adf79..fd2db78 100644
> --- a/arch/arm/mach-davinci/board-dm365-evm.c
> +++ b/arch/arm/mach-davinci/board-dm365-evm.c
> @@ -177,6 +177,8 @@ static struct at24_platform_data eeprom_info = {
>  	.context	= (void *)0x7f00,
>  };
>  
> +static struct snd_platform_data dm365_evm_snd_data;
> +
>  static struct i2c_board_info i2c_info[] = {
>  	{
>  		I2C_BOARD_INFO("dm365evm_keys", 0x25),
> @@ -476,6 +478,8 @@ static __init void dm365_evm_init(void)
>  
>  	/* maybe setup mmc1/etc ... _after_ mmc0 */
>  	evm_init_cpld();
> +	
> +	dm365_init_asp(&dm365_evm_snd_data);
>  }
>  
>  static __init void dm365_evm_irq_init(void)
> diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
> index e815174..cba09b0 100644
> --- a/arch/arm/mach-davinci/dm365.c
> +++ b/arch/arm/mach-davinci/dm365.c
> @@ -32,6 +32,7 @@
>  #include <mach/time.h>
>  #include <mach/serial.h>
>  #include <mach/common.h>
> +#include <mach/asp.h>
>  
>  #include "clock.h"
>  #include "mux.h"
> @@ -456,7 +457,7 @@ static struct davinci_clk dm365_clks[] = {
>  	CLK(NULL, "usb", &usb_clk),
>  	CLK("davinci_emac.1", NULL, &emac_clk),
>  	CLK("voice_codec", NULL, &voicecodec_clk),
> -	CLK("soc-audio.0", NULL, &asp0_clk),
> +	CLK("davinci-asp.0", NULL, &asp0_clk),
>  	CLK(NULL, "rto", &rto_clk),
>  	CLK(NULL, "mjcp", &mjcp_clk),
>  	CLK(NULL, NULL, NULL),
> @@ -806,6 +807,31 @@ static struct platform_device dm365_edma_device = {
>  	.resource		= edma_resources,
>  };
>  
> +static struct resource dm365_asp_resources[] = {
> +	{
> +		.start	= DAVINCI_DM365_ASP0_BASE,
> +		.end	= DAVINCI_DM365_ASP0_BASE + SZ_8K - 1,
> +		.flags	= IORESOURCE_MEM,
> +	},
> +	{
> +		.start	= DAVINCI_DMA_ASP0_TX,
> +		.end	= DAVINCI_DMA_ASP0_TX,
> +		.flags	= IORESOURCE_DMA,
> +	},
> +	{
> +		.start	= DAVINCI_DMA_ASP0_RX,
> +		.end	= DAVINCI_DMA_ASP0_RX,
> +		.flags	= IORESOURCE_DMA,
> +	},
> +};
> +
> +static struct platform_device dm365_asp_device = {
> +	.name		= "davinci-asp",
> +	.id		= 0,
> +	.num_resources	= ARRAY_SIZE(dm365_asp_resources),
> +	.resource	= dm365_asp_resources,
> +};
> +
>  static struct map_desc dm365_io_desc[] = {
>  	{
>  		.virtual	= IO_VIRT,
> @@ -907,6 +933,20 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
>  	.sram_len		= SZ_32K,
>  };
>  
> +void __init dm365_init_asp(struct snd_platform_data *pdata)
> +{
> +	davinci_cfg_reg(DM365_MCBSP0_BDX);
> +	davinci_cfg_reg(DM365_MCBSP0_X);
> +	davinci_cfg_reg(DM365_MCBSP0_BFSX);
> +	davinci_cfg_reg(DM365_MCBSP0_BDR);
> +	davinci_cfg_reg(DM365_MCBSP0_R);
> +	davinci_cfg_reg(DM365_MCBSP0_BFSR);
> +	davinci_cfg_reg(DM365_EVT2_ASP_TX);
> +	davinci_cfg_reg(DM365_EVT3_ASP_RX);

DM365_EVT2_ASP_TX and DM365_EVT3_ASP_RX are defined but not registered in 
dm365_pins[], so I need to resend this patch.

> +	dm365_asp_device.dev.platform_data = pdata;
> +	platform_device_register(&dm365_asp_device);
> +}
> +
>  void __init dm365_init(void)
>  {
>  	davinci_common_init(&davinci_soc_info_dm365);
> diff --git a/arch/arm/mach-davinci/include/mach/asp.h b/arch/arm/mach-davinci/include/mach/asp.h
> index 18e4ce3..fbcbed0 100644
> --- a/arch/arm/mach-davinci/include/mach/asp.h
> +++ b/arch/arm/mach-davinci/include/mach/asp.h
> @@ -15,6 +15,9 @@
>  #define	DAVINCI_DM646X_MCASP0_REG_BASE		0x01D01000
>  #define DAVINCI_DM646X_MCASP1_REG_BASE		0x01D01800
>  
> +/* Bases of dm365 register banks */
> +#define DAVINCI_DM365_ASP0_BASE	0x01D02000
> +
>  /* Bases of da850/da830 McASP0  register banks */
>  #define DAVINCI_DA8XX_MCASP0_REG_BASE	0x01D00000
>  
> diff --git a/arch/arm/mach-davinci/include/mach/dm365.h b/arch/arm/mach-davinci/include/mach/dm365.h
> index 09db434..2291c0d 100644
> --- a/arch/arm/mach-davinci/include/mach/dm365.h
> +++ b/arch/arm/mach-davinci/include/mach/dm365.h
> @@ -16,6 +16,7 @@
>  #include <linux/platform_device.h>
>  #include <mach/hardware.h>
>  #include <mach/emac.h>
> +#include <mach/asp.h>
>  
>  #define DM365_EMAC_BASE			(0x01D07000)
>  #define DM365_EMAC_CNTRL_OFFSET		(0x0000)
> @@ -25,5 +26,6 @@
>  #define DM365_EMAC_CNTRL_RAM_SIZE	(0x2000)
>  
>  void __init dm365_init(void);
> +void __init dm365_init_asp(struct snd_platform_data *pdata);
>  
>  #endif /* __ASM_ARCH_DM365_H */