arm: at91/spl: mpddrc: add struct atmel_mpddrc_config

Add struct atmel_mpddrc_config to accommodate the mpddrc register
configurations, not using the mpddrc register map structure,
struct atmel_mpddrc, in order to increase readability and reduce
run-time memory use.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>

2 files changed, 12 insertions, 2 deletions

diff --git a/arch/arm/mach-at91/include/mach/atmel_mpddrc.h b/arch/arm/mach-at91/include/mach/atmel_mpddrc.h
index c6c8dda803..47b4cd4914 100644
--- a/arch/arm/mach-at91/include/mach/atmel_mpddrc.h
+++ b/arch/arm/mach-at91/include/mach/atmel_mpddrc.h
@@ -8,6 +8,16 @@
 #ifndef __ATMEL_MPDDRC_H__
 #define __ATMEL_MPDDRC_H__
 
+struct atmel_mpddrc_config {
+	u32 mr;
+	u32 rtr;
+	u32 cr;
+	u32 tpr0;
+	u32 tpr1;
+	u32 tpr2;
+	u32 md;
+};
+
 /*
  * Only define the needed register in mpddr
  * If other register needed, will add them later
@@ -26,7 +36,7 @@ struct atmel_mpddr {
 
 int ddr2_init(const unsigned int base,
 	      const unsigned int ram_address,
-	      const struct atmel_mpddr *mpddr);
+	      const struct atmel_mpddrc_config *mpddr_value);
 
 /* Bit field in mode register */
 #define ATMEL_MPDDRC_MR_MODE_NORMAL_CMD		0x0
diff --git a/arch/arm/mach-at91/mpddrc.c b/arch/arm/mach-at91/mpddrc.c
index 47e6e5a3cd..9ba2a00e92 100644
--- a/arch/arm/mach-at91/mpddrc.c
+++ b/arch/arm/mach-at91/mpddrc.c
@@ -30,7 +30,7 @@ static int ddr2_decodtype_is_seq(u32 cr)
 
 int ddr2_init(const unsigned int base,
 	      const unsigned int ram_address,
-	      const struct atmel_mpddr *mpddr_value)
+	      const struct atmel_mpddrc_config *mpddr_value)
 {
 	const struct atmel_mpddr *mpddr = (struct atmel_mpddr *)base;