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ARM: dts: tacoma: Add phase corrections for eMMC
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commit 2d6608b upstream.

The degree values were reversed out from the magic tap values of 7 (in)
and 15 + inversion (out) initially suggested by Aspeed.

With the patch tacoma survives several gigabytes of reads and writes
using dd while without it locks up randomly during the boot process.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20210625061017.1149942-1-andrew@aj.id.au
Fixes: 2fc88f9 ("mmc: sdhci-of-aspeed: Expose clock phase controls")
Fixes: 961216c ("ARM: dts: aspeed: Add Rainier system")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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amboar authored and gregkh committed Jul 25, 2021
1 parent e551605 commit c28c747
Showing 1 changed file with 1 addition and 0 deletions.
1 change: 1 addition & 0 deletions arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts
Expand Up @@ -177,6 +177,7 @@

&emmc {
status = "okay";
clk-phase-mmc-hs200 = <36>, <270>;
};

&fsim0 {
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