76 lines
2.7 KiB
Diff
76 lines
2.7 KiB
Diff
From 26e8623e687e30fa9195e9da22479ccdb6afc91b Mon Sep 17 00:00:00 2001
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From: Artem Lapkin <art@khadas.com>
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Date: Wed, 10 Nov 2021 13:22:16 +0800
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Subject: [PATCH] arm64: dts: rockchip: emmc remove mmc-hs400-enhanced-strobe
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rk3399-khadas-edge
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Remove mmc-hs400-enhanced-strobe for rk3399-khadas-edge
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Not compitable for some eMMC chips ( BJTD4R 29.1 GiB ). And no
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performance difference in our case from emmc-hs400-enhanced-strobe option
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for other eMMC chips.
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Problem example ( eMMC chip BJTD4R 29.1 GiB ):
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[ 0.068282] platform ff770000.syscon:phy@f780: Fixing up cyclic dependency with fe330000.mmc
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[ 7.001493] mmc2: CQHCI version 5.10
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[ 7.027971] mmc2: SDHCI controller on fe330000.mmc [fe330000.mmc] using ADMA
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.......
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[ 7.207086] mmc2: mmc_select_hs400es failed, error -110
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[ 7.207129] mmc2: error -110 whilst initialising MMC card
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[ 7.308893] mmc2: mmc_select_hs400es failed, error -110
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[ 7.308921] mmc2: error -110 whilst initialising MMC card
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[ 7.427524] mmc2: mmc_select_hs400es failed, error -110
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[ 7.427546] mmc2: error -110 whilst initialising MMC card
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[ 7.590993] mmc2: mmc_select_hs400es failed, error -110
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[ 7.591012] mmc2: error -110 whilst initialising MMC card
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Workable example without mmc-hs400-enhanced-strobe:
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[ 6.960785] mmc2: CQHCI version 5.10
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[ 6.984672] mmc2: SDHCI controller on fe330000.mmc [fe330000.mmc] using ADMA
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[ 7.175021] mmc2: Command Queue Engine enabled
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[ 7.175053] mmc2: new HS400 MMC card at address 0001
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[ 7.175808] mmcblk2: mmc2:0001 BJTD4R 29.1 GiB
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[ 7.176033] mmcblk2boot0: mmc2:0001 BJTD4R 4.00 MiB
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[ 7.176245] mmcblk2boot1: mmc2:0001 BJTD4R 4.00 MiB
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[ 7.176495] mmcblk2rpmb: mmc2:0001 BJTD4R 4.00 MiB, chardev (242:0)
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Performance note for mmc-hs400-enhanced-strobe usage:
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Other chips DUTA42 116 GiB works well with or without
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mmc-hs400-enhanced-strobe!
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..... mmc-hs400-enhanced-strobe disabled
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786432000 bytes (786 MB, 750 MiB) copied, 3 s, 262 MB/s
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..... mmc-hs400-enhanced-strobe enabled
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[ 7.135880] mmc2: Command Queue Engine enabled
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[ 7.135928] mmc2: new HS400 Enhanced strobe MMC card at address 0001
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[ 7.136992] mmcblk2: mmc2:0001 DUTA42 116 GiB
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1048576000 bytes (1.0 GB, 1000 MiB) copied, 4 s, 262 MB/s
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Signed-off-by: Artem Lapkin <art@khadas.com>
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---
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arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi | 1 -
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1 file changed, 1 deletion(-)
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diff --git a/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi
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index d5c7648c841d..f1fcc6b5b402 100644
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--- a/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi
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+++ b/arch/arm64/boot/dts/rockchip/rk3399-khadas-edge.dtsi
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@@ -705,7 +705,6 @@ &sdmmc {
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&sdhci {
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bus-width = <8>;
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mmc-hs400-1_8v;
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- mmc-hs400-enhanced-strobe;
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non-removable;
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status = "okay";
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};
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--
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2.25.1
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