ARM: OMAP5 / DRA7: PM: Update CPU context register offset

On OMAP5, RM_CPUi_CPUi_CONTEXT offset has changed. Update the code
so that same code works for OMAP4+ devices. DRA7 and OMAP5 have the same
context offset as well.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[rnayak@ti.com: for DRA7]
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[nm@ti.com: rebase, split/merge etc..]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>

arch/arm/mach-omap2/omap-mpuss-lowpower.c

@@ -56,6 +56,7 @@
 #include "omap4-sar-layout.h"
 #include "pm.h"
 #include "prcm_mpu44xx.h"
+#include "prcm_mpu54xx.h"
 #include "prminst44xx.h"
 #include "prcm44xx.h"
 #include "prm44xx.h"
@@ -89,6 +90,7 @@ struct cpu_pm_ops {
 static DEFINE_PER_CPU(struct omap4_cpu_pm_info, omap4_pm_info);
 static struct powerdomain *mpuss_pd;
 static void __iomem *sar_base;
+static u32 cpu_context_offset;
 
 static int default_finish_suspend(unsigned long cpu_state)
 {
@@ -161,14 +163,14 @@ static inline void cpu_clear_prev_logic_pwrst(unsigned int cpu_id)
 
 	if (cpu_id) {
 		reg = omap4_prcm_mpu_read_inst_reg(OMAP4430_PRCM_MPU_CPU1_INST,
-					OMAP4_RM_CPU1_CPU1_CONTEXT_OFFSET);
+					cpu_context_offset);
 		omap4_prcm_mpu_write_inst_reg(reg, OMAP4430_PRCM_MPU_CPU1_INST,
-					OMAP4_RM_CPU1_CPU1_CONTEXT_OFFSET);
+					cpu_context_offset);
 	} else {
 		reg = omap4_prcm_mpu_read_inst_reg(OMAP4430_PRCM_MPU_CPU0_INST,
-					OMAP4_RM_CPU0_CPU0_CONTEXT_OFFSET);
+					cpu_context_offset);
 		omap4_prcm_mpu_write_inst_reg(reg, OMAP4430_PRCM_MPU_CPU0_INST,
-					OMAP4_RM_CPU0_CPU0_CONTEXT_OFFSET);
+					cpu_context_offset);
 	}
 }
 
@@ -392,6 +394,9 @@ int __init omap4_mpuss_init(void)
 		omap_pm_ops.finish_suspend = omap4_finish_suspend;
 		omap_pm_ops.resume = omap4_cpu_resume;
 		omap_pm_ops.scu_prepare = scu_pwrst_prepare;
+		cpu_context_offset = OMAP4_RM_CPU0_CPU0_CONTEXT_OFFSET;
+	} else if (soc_is_omap54xx() || soc_is_dra7xx()) {
+		cpu_context_offset = OMAP54XX_RM_CPU0_CPU0_CONTEXT_OFFSET;
 	}
 
 	return 0;