* [PATCH] arm64: dts: uniphier: fix input delay value for legacy mode of eMMC
@ 2018-04-12 2:31 Masahiro Yamada
2018-04-12 4:45 ` Masahiro Yamada
0 siblings, 1 reply; 3+ messages in thread
From: Masahiro Yamada @ 2018-04-12 2:31 UTC (permalink / raw)
To: linux-arm-kernel; +Cc: linux-kernel, Masahiro Yamada
The property of the legacy mode for the eMMC PHY turned out to
be worng. Some eMMC devices are unstable due to the set-up/hold
timing violation. Correct the delay value.
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 +-
arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
index e62bda1..c32dd34 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
@@ -414,7 +414,7 @@
mmc-ddr-1_8v;
mmc-hs200-1_8v;
mmc-pwrseq = <&emmc_pwrseq>;
- cdns,phy-input-delay-legacy = <4>;
+ cdns,phy-input-delay-legacy = <9>;
cdns,phy-input-delay-mmc-highspeed = <2>;
cdns,phy-input-delay-mmc-ddr = <3>;
cdns,phy-dll-delay-sdclk = <21>;
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
index 9efe20d..3a5ed78 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
@@ -519,7 +519,7 @@
mmc-ddr-1_8v;
mmc-hs200-1_8v;
mmc-pwrseq = <&emmc_pwrseq>;
- cdns,phy-input-delay-legacy = <4>;
+ cdns,phy-input-delay-legacy = <9>;
cdns,phy-input-delay-mmc-highspeed = <2>;
cdns,phy-input-delay-mmc-ddr = <3>;
cdns,phy-dll-delay-sdclk = <21>;
diff --git a/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
index 7c8f710..e85d6dd 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
@@ -334,7 +334,7 @@
mmc-ddr-1_8v;
mmc-hs200-1_8v;
mmc-pwrseq = <&emmc_pwrseq>;
- cdns,phy-input-delay-legacy = <4>;
+ cdns,phy-input-delay-legacy = <9>;
cdns,phy-input-delay-mmc-highspeed = <2>;
cdns,phy-input-delay-mmc-ddr = <3>;
cdns,phy-dll-delay-sdclk = <21>;
--
2.7.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: dts: uniphier: fix input delay value for legacy mode of eMMC
2018-04-12 2:31 [PATCH] arm64: dts: uniphier: fix input delay value for legacy mode of eMMC Masahiro Yamada
@ 2018-04-12 4:45 ` Masahiro Yamada
2018-04-24 15:44 ` Masahiro Yamada
0 siblings, 1 reply; 3+ messages in thread
From: Masahiro Yamada @ 2018-04-12 4:45 UTC (permalink / raw)
To: linux-arm-kernel; +Cc: Linux Kernel Mailing List, Masahiro Yamada
2018-04-12 11:31 GMT+09:00 Masahiro Yamada <yamada.masahiro@socionext.com>:
> The property of the legacy mode for the eMMC PHY turned out to
> be worng. Some eMMC devices are unstable due to the set-up/hold
> timing violation. Correct the delay value.
Reminder for myself:
Fix a type worng -> wrong
--
Best Regards
Masahiro Yamada
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: dts: uniphier: fix input delay value for legacy mode of eMMC
2018-04-12 4:45 ` Masahiro Yamada
@ 2018-04-24 15:44 ` Masahiro Yamada
0 siblings, 0 replies; 3+ messages in thread
From: Masahiro Yamada @ 2018-04-24 15:44 UTC (permalink / raw)
To: linux-arm-kernel; +Cc: Linux Kernel Mailing List, Masahiro Yamada
2018-04-12 13:45 GMT+09:00 Masahiro Yamada <yamada.masahiro@socionext.com>:
> 2018-04-12 11:31 GMT+09:00 Masahiro Yamada <yamada.masahiro@socionext.com>:
>> The property of the legacy mode for the eMMC PHY turned out to
>> be worng. Some eMMC devices are unstable due to the set-up/hold
>> timing violation. Correct the delay value.
>
> Reminder for myself:
> Fix a type worng -> wrong
>
Applied to linux-uniphier.
--
Best Regards
Masahiro Yamada
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-04-12 2:31 [PATCH] arm64: dts: uniphier: fix input delay value for legacy mode of eMMC Masahiro Yamada
2018-04-12 4:45 ` Masahiro Yamada
2018-04-24 15:44 ` Masahiro Yamada
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