Re: [PATCH v3 08/57] ram: rk3399: Add dbw enc macro

[Kever Yang <kever.yang@xxxxxxxxxxxxxx>]

On 2019/7/16 下午7:56, Jagan Teki wrote:
> Add simplified and meaningful macro for dbw.
>
> Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: YouMin Chen <cym@xxxxxxxxxxxxxx>

Reviewed-by: Kever Yang <Kever.yang@xxxxxxxxxxxxxx>

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 = &params->ch[channel].noc_timings;



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