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(parent: 9169482) | patch
ramips: increase spi-max-frequency for ipTIME mt7620 devices
authorSungbo Eo <mans0n@gorani.run>
Sun, 5 Apr 2020 05:11:34 +0000 (14:11 +0900)
committerChuanhong Guo <gch981213@gmail.com>
Sat, 18 Apr 2020 04:35:54 +0000 (12:35 +0800)
commit13a185bf8acb67da4a68873e560876c0e60b1a87
treecb679ca75aec6d3c5661d002958ade014f06d835tree | snapshot
parent9169482f640ca840ff478ddd03ee2cb275d21c23commit | diff
ramips: increase spi-max-frequency for ipTIME mt7620 devices

This commit increases the hardware SPI frequency from 24.2MHz to 48.3MHz.

[    5.314163] m25p80 spi0.0: speed: 24166666/40000000, rate: 8, prescal: 2, loops: 226
[    5.076323] m25p80 spi0.0: speed: 48333333/50000000, rate: 4, prescal: 1, loops: 162

`time cat /dev/mtd2 >/dev/null` is reduced from 5.64s to 4.36s on A104ns,
and from 11.39s to 8.81s on A1004ns.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
target/linux/ramips/dts/mt7620a_iptime.dtsi diff | blob | history
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