From: Lopez Cruz, Misael Date: Fri, 19 Dec 2008 02:53:12 +0000 (-0600) Subject: ARM: OMAP3: Enable writing to XCCR and RCCR McBSP registers for OMAP 2430/34xx X-Git-Tag: v2.6.28-omap1~4 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=3456ef483b5322ba4a7647f024e2c5b7846cd7e3;p=linux-2.6-omap-h63xx.git ARM: OMAP3: Enable writing to XCCR and RCCR McBSP registers for OMAP 2430/34xx 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. Signed-off-by: Misael Lopez Cruz Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/plat-omap/include/mach/mcbsp.h b/arch/arm/plat-omap/include/mach/mcbsp.h index 6a0d1a0a24a..cc48f2f33d6 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 af33fc713e1..f2401a831f9 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);