On 2019/7/16 下午7:56, Jagan Teki wrote:
Add simplified and meaningful macro for dbw.
Signed-off-by: Jagan Teki <[email protected]>
Signed-off-by: YouMin Chen <[email protected]>
Reviewed-by: Kever Yang <[email protected]>
Thanks,
- Kever
---
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 = ¶ms->ch[channel].noc_timings;
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