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| author | Shiji Yang <yangshiji66@qq.com> | 2021-03-21 22:43:59 +0800 |
|---|---|---|
| committer | Adrian Schmutzler <freifunk@adrianschmutzler.de> | 2021-03-22 20:54:34 +0100 |
| commit | bf7ddb18f1bfa0b61b4dc43732c114f20900bd4b (patch) | |
| tree | 5fbb93b00c370dc62effab351838a22484653e52 | |
| parent | e87527b57dfb1472a62059c0ff6a96dee01729d8 (diff) | |
| download | upstream-bf7ddb18f1bfa0b61b4dc43732c114f20900bd4b.tar.gz upstream-bf7ddb18f1bfa0b61b4dc43732c114f20900bd4b.tar.bz2 upstream-bf7ddb18f1bfa0b61b4dc43732c114f20900bd4b.zip | |
ramips: speed up spi frequency for Youku YK-L1
Youku YK-L1 has a huge storage space up to 32 MB. It is better to
use a higher spi clock to read or write serial nor flash chips.
Youku YK-L1 has Winbond w25q256fvfg on board that can support
104 MHz spi clock so 48 MHz is safe enough.
The real frequency can only be sysclk(580MHz ) /3 /(2^n) so 80 MHz
defined in dts file will set only 48 MHz in spi bus.
Signed-off-by: Shiji Yang <yangshiji66@qq.com>
| -rw-r--r-- | target/linux/ramips/dts/mt7620a_youku_yk1.dts | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/linux/ramips/dts/mt7620a_youku_yk1.dts b/target/linux/ramips/dts/mt7620a_youku_yk1.dts index 8727b011d4..3b84b07b8b 100644 --- a/target/linux/ramips/dts/mt7620a_youku_yk1.dts +++ b/target/linux/ramips/dts/mt7620a_youku_yk1.dts @@ -69,7 +69,7 @@ flash@0 { compatible = "jedec,spi-nor"; reg = <0>; - spi-max-frequency = <25000000>; + spi-max-frequency = <80000000>; m25p,fast-read; partitions { |