Add simplified and meaningful macro for row_3_4.

Signed-off-by: Jagan Teki <[email protected]>
Signed-off-by: YouMin Chen <[email protected]>
---
 arch/arm/include/asm/arch-rockchip/sdram_common.h | 1 +
 drivers/ram/rockchip/sdram_rk3399.c               | 3 +--
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h 
b/arch/arm/include/asm/arch-rockchip/sdram_common.h
index 076afe2ae3..e5af3eab7e 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -71,6 +71,7 @@ struct sdram_base_params {
 #define SYS_REG_NUM_CH_MASK            1
 #define SYS_REG_ROW_3_4_SHIFT(ch)      (30 + (ch))
 #define SYS_REG_ROW_3_4_MASK           1
+#define SYS_REG_ENC_ROW_3_4(n, ch)     ((n) << (30 + (ch)))
 #define SYS_REG_CHINFO_SHIFT(ch)       (28 + (ch))
 #define SYS_REG_ENC_DDRTYPE(n)         ((n) << SYS_REG_DDRTYPE_SHIFT)
 #define SYS_REG_ENC_NUM_CH(n)          (((n) - SYS_REG_NUM_CH_MASK) << \
diff --git a/drivers/ram/rockchip/sdram_rk3399.c 
b/drivers/ram/rockchip/sdram_rk3399.c
index 830311ffa9..d97efb6996 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -1089,8 +1089,7 @@ static void dram_all_config(struct dram_info *dram,
                if (params->ch[channel].cap_info.col == 0)
                        continue;
                idx++;
-               sys_reg |= info->cap_info.row_3_4 <<
-                          SYS_REG_ROW_3_4_SHIFT(channel);
+               sys_reg |= SYS_REG_ENC_ROW_3_4(info->cap_info.row_3_4, channel);
                sys_reg |= 1 << SYS_REG_CHINFO_SHIFT(channel);
                sys_reg |= (info->cap_info.rank - 1) <<
                           SYS_REG_RANK_SHIFT(channel);
-- 
2.18.0.321.gffc6fa0e3

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