From: Lopez Cruz, Misael <x0052729@ti.com>
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 <x0052729@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

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);