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According to the [[https://archive.org/details/datasheet_MX25L12805D/page/n23|datasheet]], the flash chip on the UniElec U7621-06-256M-16M board, MX25L12805D, is rated to support 33MHz for READ instructions and 50MHz for FAST_READ instructions.
The text was updated successfully, but these errors were encountered:
If I increase the SPI frequency to 33MHz by applying the following patch, time dd if=/dev/mtdblock3 of=/dev/null bs=64k decreases from 11.15s to 5.87s: diff --git a/target/linux/ramips/dts/mt7621_unielec_u7621-06-16m.dts b/target/linux/ramips/dts/mt7621_unielec_u7621-06-16m.dts
index 603e2dd2d8..80f10593e5 100644
--- a/target/linux/ramips/dts/mt7621_unielec_u7621-06-16m.dts
+++ b/target/linux/ramips/dts/mt7621_unielec_u7621-06-16m.dts
@@ -50,7 +50,7 @@
m25p80@0 {
compatible = "jedec,spi-nor";
reg = <0>;
user3016863:
According to the [[https://archive.org/details/datasheet_MX25L12805D/page/n23|datasheet]], the flash chip on the UniElec U7621-06-256M-16M board, MX25L12805D, is rated to support 33MHz for READ instructions and 50MHz for FAST_READ instructions.
The text was updated successfully, but these errors were encountered: