Re: [PATCH] spi: spi-imx: Revert "spi: spi-imx: add PIO polling support"

[Fabio Estevam <festevam@xxxxxxxxx>]

Hi Frieder,

On Mon, Nov 14, 2022 at 5:30 AM Frieder Schrempf
<frieder.schrempf@xxxxxxxxxx> wrote:

> According to our hardware department we are using the MX25R1635FZUIH0
> which has "High Performance Mode" enabled by default and should be
> capable of using a 80 MHz clock.

Thanks for the confirmation.

> As far as I know Fabio also discovered that disabling SDMA also fixes
> the problem.

Correct, if I disable DMA, the SPI NOR can read and write at 80MHz successfully.