[PATCH 4/5] scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings

Neil Armstrong neil.armstrong at linaro.org
Mon Jan 5 16:20:21 CET 2026


On 1/3/26 01:22, Marek Vasut wrote:
> From: Yoshihiro Shimoda <yoshihiro.shimoda.uh at renesas.com>
> 
> Extract specific PHY setting of the 0x10a[df] registers into a new
> function.
> 
> Ported from Linux kernel commit
> cca2b807c227 ("scsi: ufs: renesas: Refactor 0x10ad/0x10af PHY settings")
> 
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh at renesas.com>
> Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
> Link: https://lore.kernel.org/r/110eafd1ee24f9db0285a5e2bca224e35962268a.1741179611.git.geert+renesas@glider.be
> Signed-off-by: Martin K. Petersen <martin.petersen at oracle.com>
> Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
> ---
> Cc: Bhupesh Sharma <bhupesh.linux at gmail.com>
> Cc: Neil Armstrong <neil.armstrong at linaro.org>
> Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
> Cc: Tom Rini <trini at konsulko.com>
> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh at renesas.com>
> Cc: u-boot at lists.denx.de
> ---
>   drivers/ufs/ufs-renesas.c | 37 ++++++++++++++-----------------------
>   1 file changed, 14 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/ufs/ufs-renesas.c b/drivers/ufs/ufs-renesas.c
> index c8fbe61901b..b2edc3b5497 100644
> --- a/drivers/ufs/ufs-renesas.c
> +++ b/drivers/ufs/ufs-renesas.c
> @@ -130,6 +130,16 @@ static void ufs_renesas_indirect_poll(struct ufs_hba *hba, u32 gpio, u32 addr,
>   	ufs_renesas_write(hba, 0xf0, 0);
>   }
>   
> +static void ufs_renesas_write_phy_10ad_10af(struct ufs_hba *hba,
> +					    u32 data_10ad, u32 data_10af)
> +{
> +	ufs_renesas_write_phy(hba, 0x10ae, 0x0001);
> +	ufs_renesas_write_phy(hba, 0x10ad, data_10ad);
> +	ufs_renesas_write_phy(hba, 0x10af, data_10af);
> +	ufs_renesas_write_phy(hba, 0x10b6, 0x0001);
> +	ufs_renesas_write_phy(hba, 0x10ae, 0x0000);
> +}
> +
>   static void ufs_renesas_pre_init(struct ufs_hba *hba)
>   {
>   	u32 timer_val;
> @@ -204,29 +214,10 @@ static void ufs_renesas_pre_init(struct ufs_hba *hba)
>   	ufs_renesas_write_phy(hba, 0x4000, 0x0000);
>   	ufs_renesas_write_phy(hba, 0x4001, 0x0000);
>   
> -	ufs_renesas_write_phy(hba, 0x10ae, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10ad, 0x0000);
> -	ufs_renesas_write_phy(hba, 0x10af, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10b6, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10ae, 0x0000);
> -
> -	ufs_renesas_write_phy(hba, 0x10ae, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10ad, 0x0000);
> -	ufs_renesas_write_phy(hba, 0x10af, 0x0002);
> -	ufs_renesas_write_phy(hba, 0x10b6, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10ae, 0x0000);
> -
> -	ufs_renesas_write_phy(hba, 0x10ae, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10ad, 0x0080);
> -	ufs_renesas_write_phy(hba, 0x10af, 0x0000);
> -	ufs_renesas_write_phy(hba, 0x10b6, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10ae, 0x0000);
> -
> -	ufs_renesas_write_phy(hba, 0x10ae, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10ad, 0x0080);
> -	ufs_renesas_write_phy(hba, 0x10af, 0x001a);
> -	ufs_renesas_write_phy(hba, 0x10b6, 0x0001);
> -	ufs_renesas_write_phy(hba, 0x10ae, 0x0000);
> +	ufs_renesas_write_phy_10ad_10af(hba, 0x0000, 0x0001);
> +	ufs_renesas_write_phy_10ad_10af(hba, 0x0000, 0x0002);
> +	ufs_renesas_write_phy_10ad_10af(hba, 0x0080, 0x0000);
> +	ufs_renesas_write_phy_10ad_10af(hba, 0x0080, 0x001a);
>   
>   	ufs_renesas_indirect_write(hba, 7, 0x70, 0x0016);
>   	ufs_renesas_indirect_write(hba, 7, 0x71, 0x0016);

Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>

Thanks,
Neil


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