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

Kever Yang
2019-07-16T13:15:55Z

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@amarulasolutions.com>
> Signed-off-by: YouMin Chen <cym@rock-chips.com>

Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>

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;