From 961e01fc67e7d9e60557df3474fa326216aa4839 Mon Sep 17 00:00:00 2001 From: Michael Lyle Date: Sat, 29 Oct 2022 21:00:41 -0700 Subject: [PATCH] ramips: gl-mt1300: downclock SPI to 50MHz The SPI max frequency was set to 80MHz, considerably higher than the vendor clocks it in their firmware (10MHz). Multiple users reported jffs2 corruption/instability in GitHub issue #10461. My unit has a W25Q256; datasheet specifies maximum SPI frequency for read command of 50MHz. Thanks to @DragonBlueP for suggesting to eliminate m25p,fast-read; and @MPannen1979 for identifying the problem. Fixes: #10461 Signed-off-by: Michael Lyle --- target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts b/target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts index a332a87a57..d5440b3a51 100644 --- a/target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts +++ b/target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts @@ -67,8 +67,7 @@ flash@0 { compatible = "jedec,spi-nor"; reg = <0>; - spi-max-frequency = <80000000>; - m25p,fast-read; + spi-max-frequency = <50000000>; broken-flash-reset; partitions {