Re: [PATCH 2/2] ARM: dts: vf610-zii-dev: Add QSPI node
From: Fabio Estevam
Date: Mon May 13 2019 - 08:16:45 EST
Hi Andrey,
On Mon, May 13, 2019 at 12:59 AM Andrey Smirnov
<andrew.smirnov@xxxxxxxxx> wrote:
> +&qspi0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_qspi0>;
> + status = "okay";
> +
> + /*
> + * Attached MT25QL02 can go up to 90Mhz in DTR and 166 in SDR
> + * modes, so we limit spi-max-frequency to 90Mhz
Nit: It is MHz, not Mhz.
MT25QL02 datasheet refers to DTR and STR (not SDR).
Also, the public datasheet I can see online lists these limits differently:
"â Clock frequency â 133 MHz (MAX) for all protocols in STR â 66 MHz
(MAX) for all protocols in DTR"