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authorShiji Yang <yangshiji66@qq.com>2021-03-21 22:43:59 +0800
committerPetr Štetiar <ynezz@true.cz>2022-04-19 14:48:21 +0200
commit92489b4f828e21cffae977ea77daefec73753e5c (patch)
tree172fbbcda98007333eca61c82e3e4f3597de3285 /target/linux/ramips/image
parentbea18911826d04b70996335dfaa9874c9f813544 (diff)
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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> (cherry picked from commit bf7ddb18f1bfa0b61b4dc43732c114f20900bd4b)
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