[U-Boot] [PATCH v2 18/99] ram: rk3399: Add dbw enc macro

[Jagan Teki]

Add simplified and meaningful macro for dbw.

Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
Signed-off-by: YouMin Chen <c...@rock-chips.com>
---
 arch/arm/include/asm/arch-rockchip/sdram_common.h | 1 +
 drivers/ram/rockchip/sdram_rk3399.c               | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h 
b/arch/arm/include/asm/arch-rockchip/sdram_common.h
index 78cca88121..72cc9c94cc 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -58,6 +58,7 @@
 #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 77e7f92b5f..1a3285892a 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -1030,7 +1030,7 @@ static void dram_all_config(struct dram_info *dram,
                sys_reg |= (info->cs1_row - 13) <<
                            SYS_REG_CS1_ROW_SHIFT(channel);
                sys_reg |= (2 >> info->bw) << SYS_REG_BW_SHIFT(channel);
-               sys_reg |= (2 >> info->dbw) << SYS_REG_DBW_SHIFT(channel);
+               sys_reg |= SYS_REG_ENC_DBW(info->dbw, channel);
 
                ddr_msch_regs = dram->chan[channel].msch;
                noc_timing = &params->ch[channel].noc_timings;
-- 
2.18.0.321.gffc6fa0e3

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