[U-Boot] [PATCH v3 08/57] ram: rk3399: Add dbw enc macro

[Jagan Teki]

Add simplified and meaningful macro for dbw.

Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
Signed-off-by: YouMin Chen <cym at rock-chips.com>
---
 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 71062e3e71..338f4043e1 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -96,6 +96,7 @@ struct sdram_base_params {
 #define SYS_REG_BW_MASK			3
 #define SYS_REG_DBW_SHIFT(ch)		((ch) * 16)
 #define SYS_REG_DBW_MASK		3
+#define SYS_REG_ENC_DBW(n, ch)		((2 >> (n)) << SYS_REG_DBW_SHIFT(ch))
 
 /* Get sdram size decode from reg */
 size_t rockchip_sdram_size(phys_addr_t reg);
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index b93a6c6c44..b994134fdb 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -1100,8 +1100,7 @@ static void dram_all_config(struct dram_info *dram,
 			    SYS_REG_CS1_ROW_SHIFT(channel);
 		sys_reg |= (2 >> info->cap_info.bw) <<
 			   SYS_REG_BW_SHIFT(channel);
-		sys_reg |= (2 >> info->cap_info.dbw) <<
-			   SYS_REG_DBW_SHIFT(channel);
+		sys_reg |= SYS_REG_ENC_DBW(info->cap_info.dbw, channel);
 
 		ddr_msch_regs = dram->chan[channel].msch;
 		noc_timing = &params->ch[channel].noc_timings;
-- 
2.18.0.321.gffc6fa0e3