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Revert "ramips: increase spi-max-frequency for ipTIME mt7620 devices"

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This reverts commit 13a185bf8a.

There was a report that one A1004ns device fails to detect its flash
chip correctly:

[    1.470297] spi-nor spi0.0: unrecognized JEDEC id bytes: e0 10 0c 40 10 08
[    1.484110] spi-nor: probe of spi0.0 failed with error -2

It also uses a different flash chip model:
* in my hand: Winbond W25Q128FVSIG (SOIC-8)
* reported: Macronix MX25L12845EMI-10G (SOP-16)

Reducing spi-max-frequency solved the detection failure. Hence revert.

Reported-by: Koasing <koasing@gmail.com>
Tested-by: Koasing <koasing@gmail.com>
Signed-off-by: Sungbo Eo <mans0n@gorani.run>
This commit is contained in:
Sungbo Eo 2022-02-20 00:19:31 +09:00
parent 19a90262df
commit 9968a909c2
1 changed files with 1 additions and 1 deletions
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target/linux/ramips/dts/mt7620a_iptime.dtsi
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@ -21,7 +21,7 @@
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <50000000>;
spi-max-frequency = <40000000>;
partitions {
compatible = "fixed-partitions";