i.MX ProcessorsのトピックRe: imx7dsabresd - Add support for QSPI

imx7dsabresd - Add support for QSPI

blessy_abraham — Thu, 11 Jul 2019 12:39:24 GMT

Hi,
I am using imx7dsabresd board with linux version 4.14.98. I want to add QSPI support. All the hardware related changes are made as per the schematics. Could you please brief the steps i need to follow to enable QSPI in u-boot.

Re: imx7dsabresd - Add support for QSPI

AldoG — Fri, 12 Jul 2019 19:55:57 GMT

Hello,

Take a look to the i.MX Linux® User's Guide , section 4.7.4 Running the Linux OS image from QuadSPI.

Hope this helps,

Best regards,
Aldo.

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Re: imx7dsabresd - Add support for QSPI

blessy_abraham — Mon, 15 Jul 2019 08:44:51 GMT

Hi Aldo,
I haven't flashed the QSPI, i just want to know whether there is any settings that i need to change to enable the QSPI, as my sf probe command is giving me this error :
=> sf probe
SF: unrecognized JEDEC id bytes: 00, 00, 00
Failed to initialize SPI flash at 0:0

Re: imx7dsabresd - Add support for QSPI

shivanipatel — Wed, 17 Jul 2019 10:25:02 GMT

Hi, Blessy Abraham‌

I assume you are booting from SD Card and you want to detect QSPI from SD Card U-Boot. For this, you need to define CONFIG_SPI_FLASH_MACRONIX Macro in U-Boot defconfig.

Regards,

Shivani

Re: imx7dsabresd - Add support for QSPI

blessy_abraham — Wed, 17 Jul 2019 12:21:45 GMT

Hi Shivani,
I could successfully probe the QSPI, there are few more Macros that need to be added, I compared with qspi1_defconfig. Could you please share the steps for flashing u-boot to QSPI?