[19/92] ram: rk3399: Add cs1_rw macro
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Message ID 20190611145135.21399-20-jagan@amarulasolutions.com
State New
Headers show
Series
  • ram: rk3399: Add LPDDR4 support
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Commit Message

Jagan Teki June 11, 2019, 2:50 p.m. UTC 
Add simplified and meaningful macro for cs1_rw.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
---
 arch/arm/include/asm/arch-rockchip/sdram_common.h | 2 ++
 drivers/ram/rockchip/sdram_rk3399.c               | 3 +--
 2 files changed, 3 insertions(+), 2 deletions(-)

Patch
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diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h
index 5c94dba39e..a4b1742438 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -55,6 +55,8 @@ 
 					SYS_REG_CS0_ROW_SHIFT(ch))
 #define SYS_REG_CS1_ROW_SHIFT(ch)	(4 + (ch) * 16)
 #define SYS_REG_CS1_ROW_MASK		3
+#define SYS_REG_ENC_CS1_ROW(n, ch)	(((n) - 13) << \
+					SYS_REG_CS1_ROW_SHIFT(ch))
 #define SYS_REG_BW_SHIFT(ch)		(2 + (ch) * 16)
 #define SYS_REG_BW_MASK			3
 #define SYS_REG_DBW_SHIFT(ch)		((ch) * 16)
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index e3555504b0..f69194f29b 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -1027,8 +1027,7 @@  static void dram_all_config(struct dram_info *dram,
 		sys_reg |= SYS_REG_ENC_COL(info->col, channel);
 		sys_reg |= SYS_REG_ENC_BK(info->bk, channel);
 		sys_reg |= SYS_REG_ENC_CS0_ROW(info->cs0_row, channel);
-		sys_reg |= (info->cs1_row - 13) <<
-			    SYS_REG_CS1_ROW_SHIFT(channel);
+		sys_reg |= SYS_REG_ENC_CS1_ROW(info->cs1_row, channel);
 		sys_reg |= (2 >> info->bw) << SYS_REG_BW_SHIFT(channel);
 		sys_reg |= SYS_REG_ENC_DBW(info->dbw, channel);