topic imx8mm FlexSPI id error in i.MX Processors

imx8mm FlexSPI id error

jianfeichang — Fri, 21 Feb 2020 02:33:07 GMT

imx8mm linux 4.14.98 kernel log：

[ 1.683298] loop: module loaded
[ 1.690477] fsl-flexspi 30bb0000.flexspi: unrecognized JEDEC id bytes: 00, 00, 00
[ 1.697985] fsl-flexspi 30bb0000.flexspi: Freescale FlexSPI probe failed
[ 1.704759] fsl-flexspi: probe of 30bb0000.flexspi failed with error -2
[ 1.711483] slram: not enough parameters.

it is MT25QL256ABA，8MA15 RW163 。

fsl-imx8mm-evk.dts：

&flexspi {
   pinctrl-names = "default";
   pinctrl-0 = <&pinctrl_flexspi0>;
   status = "okay";

   flash0: mt25qu256aba@0 {
   reg = <0>;
   #address-cells = <1>;
   #size-cells = <1>;
   compatible = "micron,mt25qu256aba";
   spi-max-frequency = <80000000>;
   spi-nor,ddr-quad-read-dummy = <6>;
};
};

root@imx8mmevk:~# cat /proc/mtd
dev: size erasesize name
root@imx8mmevk:~#

can you help me？

Re: imx8mm FlexSPI id error

igorpadykov — Fri, 21 Feb 2020 05:41:04 GMT

Hi jianfei

MT25QL256ABA is 2.7-3.6V according to its datasheet

https://www.micron.com/-/media/client/global/documents/products/data-sheet/nor-flash/serial-nor/mt25q/die-rev-a/mt25q_ql…

EVK uses 1.7-2.0V MT25QU256ABA1EW7 part.

Best regards
igor
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Re: imx8mm FlexSPI id error

jianfeichang — Fri, 21 Feb 2020 06:57:41 GMT

Hi igorpadykov

You're right.！Thank you very much！it is 2.7-3.6V！