[U-Boot] [PATCH 17/92] ram: rk3399: Add dbw enc macro
Jagan Teki
jagan at amarulasolutions.com
Tue Jun 11 14:50:20 UTC 2019
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 | 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 8a71e8ad87..3b0557cb6d 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -57,6 +57,7 @@
#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 2614fef407..4047b4b7e3 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -1031,7 +1031,7 @@ 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 = &sdram_params->ch[channel].noc_timings;
--
2.18.0.321.gffc6fa0e3
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