* [PATCH] arm64: dts: uniphier: add cdns, phy-dll-delay-sdclk(-hsmmc) for eMMC
@ 2017-04-04 2:04 Masahiro Yamada
[not found] ` <1491271477-19806-1-git-send-email-yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Masahiro Yamada @ 2017-04-04 2:04 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Mark Rutland, devicetree, Catalin Marinas, Will Deacon,
linux-kernel, Masahiro Yamada, Rob Herring
Adjust the PHY parameters for more stable access to the eMMC device.
Set the SDCLK output delay value to 21 (including HS200/400 modes).
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 2 ++
arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi | 2 ++
2 files changed, 4 insertions(+)
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
index 42f1803..25a525c 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
@@ -313,6 +313,8 @@
cdns,phy-input-delay-legacy = <4>;
cdns,phy-input-delay-mmc-highspeed = <2>;
cdns,phy-input-delay-mmc-ddr = <3>;
+ cdns,phy-dll-delay-sdclk = <21>;
+ cdns,phy-dll-delay-sdclk-hsmmc = <21>;
};
usb0: usb@5a800100 {
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
index e4499ff..c85e6e2 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
@@ -387,6 +387,8 @@
cdns,phy-input-delay-legacy = <4>;
cdns,phy-input-delay-mmc-highspeed = <2>;
cdns,phy-input-delay-mmc-ddr = <3>;
+ cdns,phy-dll-delay-sdclk = <21>;
+ cdns,phy-dll-delay-sdclk-hsmmc = <21>;
};
soc-glue@5f800000 {
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] arm64: dts: uniphier: add cdns,phy-dll-delay-sdclk(-hsmmc) for eMMC
[not found] ` <1491271477-19806-1-git-send-email-yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>
@ 2017-05-13 16:16 ` Masahiro Yamada
0 siblings, 0 replies; 2+ messages in thread
From: Masahiro Yamada @ 2017-05-13 16:16 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Masahiro Yamada, devicetree-u79uwXL29TY76Z2rM5mHXA,
Linux Kernel Mailing List
2017-04-04 11:04 GMT+09:00 Masahiro Yamada <yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>:
> Adjust the PHY parameters for more stable access to the eMMC device.
> Set the SDCLK output delay value to 21 (including HS200/400 modes).
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>
> ---
>
> arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi | 2 ++
> arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi | 2 ++
> 2 files changed, 4 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
> index 42f1803..25a525c 100644
> --- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
> +++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
> @@ -313,6 +313,8 @@
> cdns,phy-input-delay-legacy = <4>;
> cdns,phy-input-delay-mmc-highspeed = <2>;
> cdns,phy-input-delay-mmc-ddr = <3>;
> + cdns,phy-dll-delay-sdclk = <21>;
> + cdns,phy-dll-delay-sdclk-hsmmc = <21>;
> };
>
> usb0: usb@5a800100 {
> diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
> index e4499ff..c85e6e2 100644
> --- a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
> +++ b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
> @@ -387,6 +387,8 @@
> cdns,phy-input-delay-legacy = <4>;
> cdns,phy-input-delay-mmc-highspeed = <2>;
> cdns,phy-input-delay-mmc-ddr = <3>;
> + cdns,phy-dll-delay-sdclk = <21>;
> + cdns,phy-dll-delay-sdclk-hsmmc = <21>;
> };
>
> soc-glue@5f800000 {
Applied to linux-uniphier.
--
Best Regards
Masahiro Yamada
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2017-04-04 2:04 [PATCH] arm64: dts: uniphier: add cdns, phy-dll-delay-sdclk(-hsmmc) for eMMC Masahiro Yamada
[not found] ` <1491271477-19806-1-git-send-email-yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>
2017-05-13 16:16 ` [PATCH] arm64: dts: uniphier: add cdns,phy-dll-delay-sdclk(-hsmmc) " Masahiro Yamada
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