Files
openwrt/target/linux/mediatek
Mikhail Zhilkin ea78c9d915 mediatek: increase SPI-NAND frequency for Mercusys MR90X v1
Increase the spi-max-frequency from 20MHz to 52MHz for the SPI-NAND flash
on the Mercusys MR90X v1. The underlying GigaDevice GD5F1GQ5UEYIGY
SPI-NAND flash chip natively supports clock speeds up to 133MHz and the
MediaTek MT7986B SoC handles 52MHz safely.

Testing with 'dd' reading 16MB from /dev/mtd3 shows a significant
performance improvement (~49% reduction in read time):

Before (20MHz):
256+0 records in
256+0 records out
real    0m 2.71s

After (52MHz):
256+0 records in
256+0 records out
real    0m 1.37s

Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/25246
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2026-09-26 22:14:46 +02:00
..