Re: [PATCH v3 37/57] ram: rk3399: Get lpddr4 tsel_rd_en from io settings

[Kever Yang <kever.yang@xxxxxxxxxxxxxx>]

On 2019/7/16 下午7:57, Jagan Teki wrote:
> For base.odt 1 the lpddr4 tsel_rd_en value is depending
> on IO settings of rd_odt_en.
>
> Add support for it.
>
> Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: YouMin Chen <cym@xxxxxxxxxxxxxx>

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

Thanks,
 - Kever
> ---
>   drivers/ram/rockchip/sdram_rk3399.c | 8 ++++++--
>   1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
> index e0be9d2485..9e40880835 100644
> --- a/drivers/ram/rockchip/sdram_rk3399.c
> +++ b/drivers/ram/rockchip/sdram_rk3399.c
> @@ -645,10 +645,14 @@ static void set_ds_odt(const struct chan_info *chan,
>   		tsel_ckcs_select_n = PHY_DRV_ODT_34_3;
>   	}
>   
> -	if (params->base.odt == 1)
> +	if (params->base.odt == 1) {
>   		tsel_rd_en = 1;
> -	else
> +
> +		if (params->base.dramtype == LPDDR4)
> +			tsel_rd_en = io->rd_odt_en;
> +	} else {
>   		tsel_rd_en = 0;
> +	}
>   
>   	tsel_wr_en = 0;
>   	tsel_idle_en = 0;



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