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ramips: mt7621: use higher SPI clock speed on Mikrotik rbm11g and rbm33g

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Previously the dts were using a value determined by empirical testing,
because of a spi driver/clock bug. The bug was fixed quite some time
ago. 33 MHz is the default clock frequency used by RouterBOOT and thus
safe.

Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
This commit is contained in:
Tobias Schramm 2020-06-03 15:10:40 +02:00 committed by Petr Štetiar
parent 7f0fb3e5d4
commit 2f5a242f67
2 changed files with 3 additions and 5 deletions
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3
target/linux/ramips/dts/mt7621_mikrotik_routerboard-m11g.dts
View File

@ -83,8 +83,7 @@
flash@0 { flash@0 {
compatible = "jedec,spi-nor"; compatible = "jedec,spi-nor";
reg = <0>; reg = <0>;
// XXX empiric value to obtain actual 10MHz SCK at the chip spi-max-frequency = <33000000>;
spi-max-frequency = <3125000>;
partitions { partitions {
compatible = "fixed-partitions"; compatible = "fixed-partitions";

5
target/linux/ramips/dts/mt7621_mikrotik_routerboard-m33g.dts
View File

@ -93,7 +93,7 @@
flash@0 { flash@0 {
compatible = "jedec,spi-nor"; compatible = "jedec,spi-nor";
reg = <0>; reg = <0>;
spi-max-frequency = <3125000>; spi-max-frequency = <33000000>;
partitions { partitions {
compatible = "fixed-partitions"; compatible = "fixed-partitions";
@ -139,8 +139,7 @@
flash@1 { flash@1 {
compatible = "jedec,spi-nor"; compatible = "jedec,spi-nor";
reg = <1>; reg = <1>;
// XXX empiric value to obtain actual 10MHz SCK at the chip spi-max-frequency = <33000000>;
spi-max-frequency = <3125000>;
partitions { partitions {
compatible = "fixed-partitions"; compatible = "fixed-partitions";