topic Re: 8MMINILPD4-EVK ecspi bring-up in i.MX Processors

8MMINILPD4-EVK ecspi bring-up

vignesh-baskaran — Thu, 16 Feb 2023 12:31:08 GMT

Hi,

We having 8mminilpd4-evk, we trying to bring up ecspi2 memory MT25QL02GCBB8E12-0SIT.

We tried sf probe at u-boot.

But we were unable to see the device probing.

We can see the IO mux is configured for ecspi2.

Can you give us any lead on this one.

Thanks & Regards

Vignesh baskaran

Re: 8MMINILPD4-EVK ecspi bring-up

vignesh-baskaran — Mon, 20 Feb 2023 11:20:49 GMT

HI,

We were trying to bring up ecspi2 memory MT25QL02GCBB8E12-0SIT

We followed this post "https://community.nxp.com/t5/i-MX-Processors/ECSPI2-on-i-MX8M-Mini-EVK/m-p/904313" But we were unable to see the deviceat userspace or probing at boot time .

// SPDX-License-Identifier: GPL-2.0

#include "imx8mm-evk.dts"

/delete-node/&spidev0;

&ecspi2 {

#address-cells = <0>;

/delete-property/cs-gpios;

spi-slave;

fsl,spi-num-chipselects = <1>;

cs-gpios = <0>;

pinctrl-names = "default";

pinctrl-0 = <&pinctrl_ecspi2>;

status = "okay";

spidev@0x01 {

//compatible = "fsl,imx8mm-ecspi ";

compatible = "spidev";

spi-max-frequency = <133000000>;

spi-cs-high;

reg = <0>;

};

&pinctrl_ecspi2_cs {

fsl,pins = <

MX8MM_IOMUXC_ECSPI2_SS0_ECSPI2_SS0 0x00000116

};

pinctrl_ecspi2: ecspi2grp {

fsl,pins = <

MX8MM_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0x00000116

MX8MM_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0x00000116

MX8MM_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK 0x00001916

};

&micfil {

pinctrl-names = "default";

pinctrl-0 = <&pinctrl_pdm>;

assigned-clocks = <&clk IMX8MM_CLK_PDM_SRC>, <&clk IMX8MM_CLK_PDM_DIV>;

assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;

assigned-clock-rates = <0>, <196608000>;

status = "okay";

};

pinctrl_wdog: wdoggrp {

fsl,pins = <

MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B 0xc6

};

We tried to check at u-boot using $ sf probe , but we didn't seeing ecspi2 getting probe.

We tried enabling all the interfaces for ecspi2 u-boot menu config.

Can you please point out some leads on this one?

Thanks,

Vignesh Baskaran

Re: 8MMINILPD4-EVK ecspi bring-up

vignesh-baskaran — Mon, 20 Feb 2023 12:51:28 GMT

this is critical issue, can anyone help us on this one.?

Re: 8MMINILPD4-EVK ecspi bring-up

vignesh-baskaran — Tue, 21 Feb 2023 06:44:06 GMT

HI,

We were trying to flash ecspi2 using UUU .

Can you let us know what was the command used to flash ecspi2?

Thanks.

Re: 8MMINILPD4-EVK ecspi bring-up

Dhruvit — Wed, 22 Feb 2023 09:38:20 GMT

Hi @vignesh-baskaran,

I hope you are doing well.

Yes, It is needed to check that the flash must first be probed with sf probe before any of the other subcommands can be used.

Please make sure you have given the correct sf probe command.
sf probe [[[<bus>:]<cs>] [<hz> [<mode>]]]

Please make sure the ECSPI initialization is appropriately done, If not then follow the procedure as mentioned below.

To initialize the block:
1. Clear the EN bit in ECSPI_CONREG to reset the block.
2. Enable the clocks for ECSPI within the CCM.
3. Configure the Control Register and then set the EN bit in the ECSPI_CONREG to put ECSPI out of reset.
4. Configure corresponding IOMUX for ECSPI external signals.
5. Configure registers of ECSPI properly according to the specifications of the external SPI device.

Please take a look at Section 10.1.5 ECSPI Memory Map/Register Definition of the RM to make sure the IOMUX pin setting is.
https://www.nxp.com/webapp/Download?colCode=IMX8MMRM

Thanks & Regards,
Dhruvit Vasavada