MIMXRT1024 EVK Board QSPI Flash issues

[PxGreen101]

There is an On-Chip 32 Mbit QSPI Flash is used on the MIMXRT1024

According to the reference manual:
24.5 SIP 4M Flash Memory
This chip is packaged with a flash memory Winbond W25Q32JV. For more details, please visit http://www.winbond.com.

This device has a jedec-id = [ef 40 16];

However I am looking at the latest nxp_rt1024.dtsi file and it is listed as a IS25WP032 which is an altogether different part and has an altogether different jedec-id

&flexspi {
status = "okay";
reg = <0x402a8000 0x4000>, <0x60000000 DT_SIZE_M(4)>;
is25wp032: is25wp032@0 {
compatible = "nxp,imx-flexspi-nor";
size = <DT_SIZE_M(32)>;
label = "IS25WP032";
reg = <0>;
spi-max-frequency = <133000000>;
status = "okay";
jedec-id = [9d 70 17];
erase-block-size = <DT_SIZE_K(4)>;
write-block-size = <1>;
};
};

Is this a mistake?

I tried modifying this definition for flexspi in version 2.6 (version I am using). That version has the device listed as a IS25WP064 which is incorrect but has been changed to the above in 3.0.

I am trying to get the zephyr/samples/drivers/flash_shell to run with this development kit but the system hard faults as soon as I run any flash command. Has anyone successfully run this particular example with the MIMXRT1024 development board?

[danieldegrasse]

Based off what you are seeing your issue may be that the default flash device name selected by the example is incorrect. Can you try issuing flash set_device IS25WP032 before using other flash commands?

More details on your issue, if the above doesn't help:

It does appear that the device name in the RT1024 EVK DTS is incorrect. However, the key property in that DTS file is compatible = "nxp,imx-flexspi-nor";. Using a subset of the patches from PR #38209, you can enable the flash driver on Zephyr 2.6. I've attached the patch I used: 0001-boards-mimxrt1024-Enable-flexspi.txt

You also need to explicitly set the flash device name using flash set_device, since the default flash selection that the implementation available in Zephyr 3.0 makes is incorrect. Here's a set of commands working using the patch I have attached:

*** Booting Zephyr OS build zephyr-v2.6.0  ***
**No flash controller found!**
Run set_device <name> to specify one before using other commands.


uart:~$ flash set_device IS25WP064

uart:~$ flash page_read 1023 300
00 01 02 03 | 04 05 06 07 |08 09 0a 0b | 0c 0d 0e 0f
10 11 12 13 | 14 15 16 17 |18 19 1a 1b | 1c 1d 1e 1f
20 21 22 23 | 24 25 26 27 |28 29 2a 2b | 2c 2d 2e 2f
30 31 32 33 | 34 35 36 37 |38 39 3a 3b | 3c 3d 3e 3f
40 41 42 43 | 44 45 46 47 |48 49 4a 4b | 4c 4d 4e 4f
50 51 52 53 | 54 55 56 57 |58 59 5a 5b | 5c 5d 5e 5f
60 61 62 63 | 64 65 66 67 |68 69 6a 6b | 6c 6d 6e 6f
70 7b | 7c 7d 7ef
80 81 82 83 | 84 85 86 87 |88 89 8a 8b | 8c 8d 8e 8f
90 91 97 |98 99 9a 9b | 9c 9d 9e 9f
a0 a1 a2 a3 | a4 a5 a6 a7 |a8 a9 aa ab | ac ad ae af
b0 b1 b2 b3 | b4 b5 b6 b7 |b8 b9 ba bb | bc bd be bf
c0 c1 c2 c3 | c4 c5 c6 c7 |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff
ff ff ff ff 

uart:~$ flash page_erase 1023 4096
Erasing page 1023 (start offset 0x3ff000, size 0x1000)

uart:~$ flash page_read 1023 300
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff  ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ffff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
fff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff |ff ff ff ff | ff ff ff ff
ff ff ff ff | ff ff ff ff
ff ff ff ff 
uart:~$ 

[PxGreen101]

Thanks for letting me know about the flash set_device command.

I had already modified the nxp_rt1024.dtsi to the correct device: W25Q32JVWJ0. I tried the command flash set_device W25Q32JVWJ0

&flexspi {
status = "okay";
reg = <0x402a8000 0x4000>, <0x60000000 DT_SIZE_M(4)>;
w25q32jvwj0: w25q32jvwj@0 {
compatible = "nxp,imx-flexspi-nor";
size = <33554432>;
label = "W25Q32JVWJ0";
reg = <0>;
spi-max-frequency = <133000000>;
status = "okay";
jedec-id = [ef 40 16]; /* Winbond part */
erase-block-size = <4096>;
write-block-size = <1>;
};
};

Flash read and write commands work correctly now. Thanks.