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authorSunguk Lee <d3m3vilurr@gmail.com>2020-07-02 18:32:43 +0900
committerAdrian Schmutzler <freifunk@adrianschmutzler.de>2020-07-06 16:25:32 +0200
commit2d378703f13f51da89edc4b24c0bb51f415dc88f (patch)
treef67732e42b48367750a01ac4ddb7dddfa6612259
parent883250014daad1f1cc802ca1c23bb8f0eded9489 (diff)
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ramips: reduce spi-max-frequency for ipTIME A8004T
Reduce spi-max-frequency for ipTIME A8004T and disable m25p,fast-read option. A8004T uses `en25qh128` for the MTD. This flash memory would allow 80MHz, sometimes kernel received wrong id value in initramfs installed router. (kernel expected `1c 70 18 1c 70 18`, but one of cases, it was `9c 70 18 1c 70 18`) In this case, openwrt can't detect the partition information, it would write the inccorect data to the firmware partition and also it would occur the bootlooping after sysupgrade. Signed-off-by: Sunguk Lee <d3m3vilurr@gmail.com> [minor commit title/message adjustments] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
-rw-r--r--target/linux/ramips/dts/mt7621_iptime_a8004t.dts3
1 files changed, 1 insertions, 2 deletions
diff --git a/target/linux/ramips/dts/mt7621_iptime_a8004t.dts b/target/linux/ramips/dts/mt7621_iptime_a8004t.dts
index b948236c15..e96a5d660e 100644
--- a/target/linux/ramips/dts/mt7621_iptime_a8004t.dts
+++ b/target/linux/ramips/dts/mt7621_iptime_a8004t.dts
@@ -65,8 +65,7 @@
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
- spi-max-frequency = <80000000>;
- m25p,fast-read;
+ spi-max-frequency = <50000000>;
partitions {
compatible = "fixed-partitions";