ARM: OMAP2/3: Remove OMAP_PRM_REGADDR and OMAP2_PRM_BASE

Remove OMAP_PRM_REGADDR and use processor specific defines instead.

Also fold in a patch from Kevin Hilman to add _OFFSET #defines
for the PRCM registers to be used with the prm_[read|write]_* macros.
These are used extensively in the forthcoming OMAP PM support.

Also remove now unused OMAP2_PRM_BASE.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c
index e4cef33..c442fe9 100644
--- a/arch/arm/mach-omap2/clock24xx.c
+++ b/arch/arm/mach-omap2/clock24xx.c
@@ -233,6 +233,8 @@
 static struct clk *vclk;
 static struct clk *sclk;
 
+static void __iomem *prcm_clksrc_ctrl;
+
 /*-------------------------------------------------------------------------
  * Omap24xx specific clock functions
  *-------------------------------------------------------------------------*/
@@ -269,10 +271,9 @@
 {
 	u32 pcc;
 
-	pcc = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL);
+	pcc = __raw_readl(prcm_clksrc_ctrl);
 
-	__raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK,
-		      OMAP24XX_PRCM_CLKSRC_CTRL);
+	__raw_writel(pcc & ~OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
 
 	return 0;
 }
@@ -281,10 +282,9 @@
 {
 	u32 pcc;
 
-	pcc = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL);
+	pcc = __raw_readl(prcm_clksrc_ctrl);
 
-	__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK,
-		      OMAP24XX_PRCM_CLKSRC_CTRL);
+	__raw_writel(pcc | OMAP_AUTOEXTCLKMODE_MASK, prcm_clksrc_ctrl);
 }
 
 static const struct clkops clkops_oscck = {
@@ -654,7 +654,7 @@
 {
 	u32 div;
 
-	div = __raw_readl(OMAP24XX_PRCM_CLKSRC_CTRL);
+	div = __raw_readl(prcm_clksrc_ctrl);
 	div &= OMAP_SYSCLKDIV_MASK;
 	div >>= OMAP_SYSCLKDIV_SHIFT;
 
@@ -714,10 +714,13 @@
 	struct omap_clk *c;
 	u32 clkrate;
 
-	if (cpu_is_omap242x())
+	if (cpu_is_omap242x()) {
+		prcm_clksrc_ctrl = OMAP2420_PRCM_CLKSRC_CTRL;
 		cpu_mask = RATE_IN_242X;
-	else if (cpu_is_omap2430())
+	} else if (cpu_is_omap2430()) {
+		prcm_clksrc_ctrl = OMAP2430_PRCM_CLKSRC_CTRL;
 		cpu_mask = RATE_IN_243X;
+	}
 
 	clk_init(&omap2_clk_functions);