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From: Andrew Jeffery <>
Subject: [PATCH] ARM: dts: tacoma: Add phase corrections for eMMC
Date: Fri, 25 Jun 2021 15:40:17 +0930	[thread overview]
Message-ID: <> (raw)

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 <>
 arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts b/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts
index c1478d2db602..670080bb80eb 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts
@@ -189,6 +189,7 @@ &emmc_controller {
 &emmc {
 	status = "okay";
+	clk-phase-mmc-hs200 = <36>, <270>;
 &fsim0 {

             reply	other threads:[~2021-06-25  6:11 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-25  6:10 Andrew Jeffery [this message]
2021-07-01  3:40 ` [PATCH] ARM: dts: tacoma: Add phase corrections for eMMC Joel Stanley
2021-07-01  5:08   ` Andrew Jeffery

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