FlexSPI NAND Flash on LS1028ARDB cannot access from u-boot and linux

tatsuya_yokoyama — Wed, 28 Jul 2021 10:43:01 GMT

FlexSPI NAND Flash on LS1028ARDB is not accessible from u-boot and Linux.

The Flex SPI NOR flash on the LS1028ARDB is accessible.

Access by U-boot.

=> sf probe 0:0 SF: Detected mt35xu02g with page size 256 Bytes, erase size 128 KiB, total 256 MiB => sf probe 0:1 unrecognized JEDEC id bytes: ff, 2c, 35 Failed to initialize SPI flash at 0:1 (error -2)

The JEDEC ID matches the data sheet. (ff → Dummy, 2c → Micron Technology, 35 → Capacity)

The goals are:

Store the Bootloader in FlexSPI NOR Flash. → completion.
Mount the NAND flash as UBIFS.
Store the kernel and root filesystem in FlexSPI NAND Flash.

Boot the kernel and root filesystem mounted the NAND flash as UBIFS from the FlexSPI NOR flash bootloader.

Could you tell me how to use NAND flash and how to mount with UBIFS ?

Re: FlexSPI NAND Flash on LS1028ARDB cannot access from u-boot and linux

yipingwang — Wed, 04 Aug 2021 06:15:28 GMT

Currently we don't have Serial NAND flash support in LSDK.

I am checking further with software team about their plans

Re: FlexSPI NAND Flash on LS1028ARDB cannot access from u-boot and linux

tatsuya_yokoyama — Wed, 04 Aug 2021 23:28:55 GMT

thank you for reply.

I hope that LS1028 will support it.

Please do your best.

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FlexSPI NAND Flash on LS1028ARDB cannot access from u-boot and linux

Re: FlexSPI NAND Flash on LS1028ARDB cannot access from u-boot and linux

Re: FlexSPI NAND Flash on LS1028ARDB cannot access from u-boot and linux