How to enable fast_read mode with mx25l25635f flash in imx6-solo-lite

[ian000000]

in our imx6 solo lite board, using mx25l25635f spi-nor flash.

u-boot can read / write and probe, but it read / write speed is very slow.

i check on internet, it seem imx driver in u-boot only support 3byte mode.

does imx6 solo lite have mx25l25635f driver patch that support 4 byte mode in u-boot and kernel?

[ian000000]

yes, i have tried fast_read, but i can't get any data that be saved before.

it alway return crc error and using default environment setting.

B.T.W: according mx25l25635f data sheet, it should support 4-byte mode.

[jimmychan]

I mean the i.MX6S Reference manual.

[jimmychan]

According to the Reference Manual, the boot only support 2 or 3 bytes addressing.