[U-Boot] [PATCH v4 03/20] rockchip: rk3288: sdram: use constants in ddrconf table

[Heiko Stuebner]

Use defines to describe the bit shifts used to create the
table for ddrconf register values.

Signed-off-by: Heiko Stuebner <he...@sntech.de>
---
 arch/arm/include/asm/arch-rockchip/ddr_rk3288.h |  8 ++++++++
 arch/arm/mach-rockchip/rk3288/sdram_rk3288.c    | 20 ++++++++++----------
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/arch/arm/include/asm/arch-rockchip/ddr_rk3288.h 
b/arch/arm/include/asm/arch-rockchip/ddr_rk3288.h
index fccabcd2c0..9a59075afc 100644
--- a/arch/arm/include/asm/arch-rockchip/ddr_rk3288.h
+++ b/arch/arm/include/asm/arch-rockchip/ddr_rk3288.h
@@ -425,6 +425,14 @@ enum {
 
 #define START_CMD                      (1u << 31)
 
+/*
+ * DDRCONF
+ * [5:4] row(13+n)
+ * [1:0] col(9+n), assume bw=2
+ */
+#define DDRCONF_ROW_SHIFT              4
+#define DDRCONF_COL_SHIFT              0
+
 /* DEVTODEV */
 #define BUSWRTORD_SHIFT                        4
 #define BUSRDTOWR_SHIFT                        2
diff --git a/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c 
b/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c
index be3d713202..41661046af 100644
--- a/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c
+++ b/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c
@@ -596,16 +596,16 @@ static void dram_all_config(const struct dram_info *dram,
 const int ddrconf_table[] = {
        /* row      col,bw */
        0,
-       ((1 << 4) | 1),
-       ((2 << 4) | 1),
-       ((3 << 4) | 1),
-       ((4 << 4) | 1),
-       ((1 << 4) | 2),
-       ((2 << 4) | 2),
-       ((3 << 4) | 2),
-       ((1 << 4) | 0),
-       ((2 << 4) | 0),
-       ((3 << 4) | 0),
+       ((1 << DDRCONF_ROW_SHIFT) | 1 << DDRCONF_COL_SHIFT),
+       ((2 << DDRCONF_ROW_SHIFT) | 1 << DDRCONF_COL_SHIFT),
+       ((3 << DDRCONF_ROW_SHIFT) | 1 << DDRCONF_COL_SHIFT),
+       ((4 << DDRCONF_ROW_SHIFT) | 1 << DDRCONF_COL_SHIFT),
+       ((1 << DDRCONF_ROW_SHIFT) | 2 << DDRCONF_COL_SHIFT),
+       ((2 << DDRCONF_ROW_SHIFT) | 2 << DDRCONF_COL_SHIFT),
+       ((3 << DDRCONF_ROW_SHIFT) | 2 << DDRCONF_COL_SHIFT),
+       ((1 << DDRCONF_ROW_SHIFT) | 0 << DDRCONF_COL_SHIFT),
+       ((2 << DDRCONF_ROW_SHIFT) | 0 << DDRCONF_COL_SHIFT),
+       ((3 << DDRCONF_ROW_SHIFT) | 0 << DDRCONF_COL_SHIFT),
        0,
        0,
        0,
-- 
2.11.0

_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot