[PATCH 17/20] mmc: rockchip_sdhci: Add support for RK3576

Jonas Karlman jonas at kwiboo.se
Fri Jan 31 00:25:51 CET 2025


Hi Heiko,

On 2024-11-21 15:27, Heiko Stuebner wrote:
> Add support for RK3576 to the rockchip sdhci driver.
> 
> It's pretty similar to its cousins found in the RK3568 and RK3588 and the
> specific hs400-tx-tap number was taken from the vendor-u-boot.
> 
> Signed-off-by: Heiko Stuebner <heiko at sntech.de>
> ---
>  drivers/mmc/rockchip_sdhci.c | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
> index da630b9d97a..9571e7d66c9 100644
> --- a/drivers/mmc/rockchip_sdhci.c
> +++ b/drivers/mmc/rockchip_sdhci.c
> @@ -656,6 +656,14 @@ static const struct sdhci_data rk3568_data = {
>  	.hs400_txclk_tapnum = 0x8,
>  };
>  
> +static const struct sdhci_data rk3576_data = {
> +	.set_ios_post = rk3568_sdhci_set_ios_post,
> +	.set_clock = rk3568_sdhci_set_clock,
> +	.config_dll = rk3568_sdhci_config_dll,
> +	.hs200_txclk_tapnum = DLL_TXCLK_TAPNUM_DEFAULT,
> +	.hs400_txclk_tapnum = 0x7,

Please add following to fix HS200+ mode together with [1] and [2].

  .hs400_cmdout_tapnum = 0x7,
  .hs400_strbin_tapnum = 0x5,
  .ddr50_strbin_delay_num = 0xa,

[1] https://patchwork.ozlabs.org/patch/2038152/
[2] https://patchwork.ozlabs.org/patch/2038155/

Regards,
Jonas

> +};
> +
>  static const struct sdhci_data rk3588_data = {
>  	.set_ios_post = rk3568_sdhci_set_ios_post,
>  	.set_clock = rk3568_sdhci_set_clock,
> @@ -673,6 +681,10 @@ static const struct udevice_id sdhci_ids[] = {
>  		.compatible = "rockchip,rk3568-dwcmshc",
>  		.data = (ulong)&rk3568_data,
>  	},
> +	{
> +		.compatible = "rockchip,rk3576-dwcmshc",
> +		.data = (ulong)&rk3576_data,
> +	},
>  	{
>  		.compatible = "rockchip,rk3588-dwcmshc",
>  		.data = (ulong)&rk3588_data,



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