Re: [PATCH v3 11/57] ram: rk3399: Add bw enc macro

[Kever Yang <kever.yang@xxxxxxxxxxxxxx>]

On 2019/7/16 下午7:56, Jagan Teki wrote:
> Add simplified and meaningful macro for bw.
>
> 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 578db90241..4749233226 100644
> --- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
> +++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
> @@ -98,6 +98,7 @@ struct sdram_base_params {
>   					SYS_REG_CS1_ROW_SHIFT(ch))
>   #define SYS_REG_BW_SHIFT(ch)		(2 + (ch) * 16)
>   #define SYS_REG_BW_MASK			3
> +#define SYS_REG_ENC_BW(n, ch)		((2 >> (n)) << SYS_REG_BW_SHIFT(ch))
>   #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))
> diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
> index a83709f271..2d3f0f6902 100644
> --- a/drivers/ram/rockchip/sdram_rk3399.c
> +++ b/drivers/ram/rockchip/sdram_rk3399.c
> @@ -1096,8 +1096,7 @@ static void dram_all_config(struct dram_info *dram,
>   		sys_reg |= SYS_REG_ENC_BK(info->cap_info.bk, channel);
>   		sys_reg |= SYS_REG_ENC_CS0_ROW(info->cap_info.cs0_row, channel);
>   		sys_reg |= SYS_REG_ENC_CS1_ROW(info->cap_info.cs1_row, channel);
> -		sys_reg |= (2 >> info->cap_info.bw) <<
> -			   SYS_REG_BW_SHIFT(channel);
> +		sys_reg |= SYS_REG_ENC_BW(info->cap_info.bw, channel);
>   		sys_reg |= SYS_REG_ENC_DBW(info->cap_info.dbw, channel);
>   
>   		ddr_msch_regs = dram->chan[channel].msch;



_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/linux-rockchip