nRF52840 Zephyr dual QSPI Cypress S25hS512 flash Problem

[Tushar_V]

Hi,

We are using nrf52840 for custom design and we have replaced the mx25r6435f qspi flash with Cypress S25hS512 qspi flash. We configured the flash as below in the dts file.

SDK: ncs v1.7.1

&qspi {
	status = "okay";
	sck-pin = <19>;
	io-pins = <20>, <21>;     //, <22>, <23>;
	csn-pins = <17>;
	s25hs512: s25hs512tf@0 {
		compatible = "nordic,qspi-nor";
		reg = <0>;
        quad-enable-requirements = "NONE";
		writeoc = "pp";						//"pp4io";
		readoc = "fastread";				//"read4io"; 
		sck-frequency = <8000000>;
		label = "S25HS512";
		jedec-id = [34 2B 1A];
		size = <512000000>;
	};

If I configure the writeoc and readoc as pp4io and read4io I get data mismatch error. If I configure the flash as pp and fastread I am getting JEDEC QSPI-NOR SPI flash testing
==========================
SPI flash driver S25HS512 was not found!

 

What could be the issue? Need your help, its urgent.

[Elfving]

Hello,

I will unfortunately have to get back to you over the weekend on this.

We configured the flash as below in the dts file.

So it is essentially the same configuration you used with the mx25r6435f, which worked?

Best regards,

Elfving

[Tushar_V]

Hi Elfving,

Yes, with the mx25r6435f is working fine. but when I use the same configuration for Cypress flash. I am getting the error. 

Best Regards,

Tushar

[Elfving]

Hello again,

It works from my side. Have you added the configuration CONFIG_NORDIC_QSPI_NOR=y?

If that isn't the issue there might be something wrong with the physical connection.

Best regards,

Elfving

[Tushar_V]

Hi Elfving,

Yes, we have enabled CONFIG_NORDIC_QSPI_NOR=y in our prj.conf

I have checked the physical connections, it is fine.

Can you share your dts configuration? You tested it on mx25r6435f or on Cypress flash chip?

[Tushar_V]

Hi Elfving,

Any update ?

Reagrds

Tushar

[Elfving]

Hey Tushar! Sorry about the delay,

Tushar_V said:

You tested it on mx25r6435f or on Cypress flash chip?

Neither, I just checked if I got the same error adding your own dts additions on an overlay-file.

Tushar_V said:

Can you share your dts configuration?

Look here.

spi_flash.zip

And add the configurations you mentioned to the overlay file.

&qspi {
	status = "okay";
	sck-pin = <19>;
	io-pins = <20>, <21>;     //, <22>, <23>;
	csn-pins = <17>;
	s25hs512: s25hs512tf@0 {
		compatible = "nordic,qspi-nor";
		reg = <0>;
        quad-enable-requirements = "NONE";
		writeoc = "pp";						//"pp4io";
		readoc = "fastread";				//"read4io"; 
		sck-frequency = <8000000>;
		label = "S25HS512";
		jedec-id = [34 2B 1A];
		size = <512000000>;
	};

Let me know if that doesn't work.

Best regards,

Elfving