* Lopez Cruz, Misael <x0052729@xxxxxx> [081219 04:53]:
> This patch enables writing to McBSP Transmit Configuration Control
> Register (XCCR) and Receive Configuration Control Register (RCCR)
> for 2430/34xx platforms. It also adds XCCR, RCCR entries in McBSP
> register configuration structure and bit definitions for both
> registers.
Pushing to l-o. Can you briefly describe what happens with ASoC
if these registers are not used? We may be able to send this
as a fix to mainline during the -rc cycle.
Regards,
Tony
> Signed-off-by: Misael Lopez Cruz <x0052729@xxxxxx>
> ---
> arch/arm/plat-omap/include/mach/mcbsp.h | 7 +++++++
> arch/arm/plat-omap/mcbsp.c | 4 ++++
> 2 files changed, 11 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/plat-omap/include/mach/mcbsp.h b/arch/arm/plat-omap/include/mach/mcbsp.h
> index 6a0d1a0..cc48f2f 100644
> --- a/arch/arm/plat-omap/include/mach/mcbsp.h
> +++ b/arch/arm/plat-omap/include/mach/mcbsp.h
> @@ -231,11 +231,16 @@
> #define XPBBLK(value) ((value)<<7) /* Bits 7:8 */
>
> /*********************** McBSP XCCR bit definitions *************************/
> +#define EXTCLKGATE 0x8000
> +#define PPCONNECT 0x4000
> +#define DXENDLY(value) ((value)<<12) /* Bits 12:13 */
> +#define XFULL_CYCLE 0x0800
> #define DILB 0x0020
> #define XDMAEN 0x0008
> #define XDISABLE 0x0001
>
> /********************** McBSP RCCR bit definitions *************************/
> +#define RFULL_CYCLE 0x0800
> #define RDMAEN 0x0008
> #define RDISABLE 0x0001
>
> @@ -267,6 +272,8 @@ struct omap_mcbsp_reg_cfg {
> u16 rcerh;
> u16 xcerg;
> u16 xcerh;
> + u16 xccr;
> + u16 rccr;
> };
>
> typedef enum {
> diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
> index af33fc7..f2401a8 100644
> --- a/arch/arm/plat-omap/mcbsp.c
> +++ b/arch/arm/plat-omap/mcbsp.c
> @@ -173,6 +173,10 @@ void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg *config)
> OMAP_MCBSP_WRITE(io_base, MCR2, config->mcr2);
> OMAP_MCBSP_WRITE(io_base, MCR1, config->mcr1);
> OMAP_MCBSP_WRITE(io_base, PCR0, config->pcr0);
> + if (cpu_is_omap2430() || cpu_is_omap34xx()) {
> + OMAP_MCBSP_WRITE(io_base, XCCR, config->xccr);
> + OMAP_MCBSP_WRITE(io_base, RCCR, config->rccr);
> + }
> }
> EXPORT_SYMBOL(omap_mcbsp_config);
>
> --
> 1.5.4.3
> --
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