LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
* [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	[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

end of thread, other threads:[~2018-04-24 15:45 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).