From 4cd5ce5a7f2708a6a352ec8ab0115c8decccf3b0 Mon Sep 17 00:00:00 2001 From: David Bauer Date: Tue, 21 Jul 2020 20:11:28 +0200 Subject: [PATCH] ramips: increase SPI frequency for MT7620 Archer Increase the SPI frequency for the MT7620 based TP-Link Archer series to 30MHz. TP-Link uses different SPI flash chips for the same board revision, so be conservative to not break boards with a different chip. 30MHz should be well supported by all chips. Tested on Archer C2 v1 (GD25Q64B) and Archer C20i (W25Q64FV). Archer C20i (before) ==================== root@OpenWrt:~# time dd if=/dev/mtd1 of=/tmp/test.bin bs=64k 122+0 records in 122+0 records out real 0m 15.30s user 0m 0.00s sys 0m 15.29s Archer C20i (after) =================== root@OpenWrt:~# time dd if=/dev/mtd1 of=/tmp/test.bin bs=64k 122+0 records in 122+0 records out real 0m 5.99s user 0m 0.00s sys 0m 5.98s Signed-off-by: David Bauer Acked-by: Adrian Schmutzler --- target/linux/ramips/dts/mt7620a_tplink_archer-c2-v1.dts | 2 +- target/linux/ramips/dts/mt7620a_tplink_archer-mr200.dts | 2 +- target/linux/ramips/dts/mt7620a_tplink_archer.dtsi | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/target/linux/ramips/dts/mt7620a_tplink_archer-c2-v1.dts b/target/linux/ramips/dts/mt7620a_tplink_archer-c2-v1.dts index c0b2c1ae92..75ddc5fb5d 100644 --- a/target/linux/ramips/dts/mt7620a_tplink_archer-c2-v1.dts +++ b/target/linux/ramips/dts/mt7620a_tplink_archer-c2-v1.dts @@ -82,7 +82,7 @@ flash@0 { compatible = "jedec,spi-nor"; reg = <0>; - spi-max-frequency = <10000000>; + spi-max-frequency = <30000000>; partitions { compatible = "fixed-partitions"; diff --git a/target/linux/ramips/dts/mt7620a_tplink_archer-mr200.dts b/target/linux/ramips/dts/mt7620a_tplink_archer-mr200.dts index c3c0efdfe6..0c0f4bb8e9 100644 --- a/target/linux/ramips/dts/mt7620a_tplink_archer-mr200.dts +++ b/target/linux/ramips/dts/mt7620a_tplink_archer-mr200.dts @@ -121,7 +121,7 @@ flash@0 { compatible = "jedec,spi-nor"; reg = <0>; - spi-max-frequency = <10000000>; + spi-max-frequency = <30000000>; partitions { compatible = "fixed-partitions"; diff --git a/target/linux/ramips/dts/mt7620a_tplink_archer.dtsi b/target/linux/ramips/dts/mt7620a_tplink_archer.dtsi index 184627b9f4..670bad615d 100644 --- a/target/linux/ramips/dts/mt7620a_tplink_archer.dtsi +++ b/target/linux/ramips/dts/mt7620a_tplink_archer.dtsi @@ -43,7 +43,7 @@ flash@0 { compatible = "jedec,spi-nor"; reg = <0>; - spi-max-frequency = <10000000>; + spi-max-frequency = <30000000>; partitions { compatible = "fixed-partitions"; -- 2.30.2