-> SPI-NOR device support (MTD_SPI_NOR [=y])
Depends on: MTD [=y] && MTD_SPI_NOR [=y]
Compile-time Configuration Options
Config Values Defualt Value Description
CONFIG_SPI_NXP_FLEXSPI y/n y
Enable FlexSPI module
CONFIG_MTD_SPI_NOR_BAS
E
y/n y
Enables the framework for
SPI-NOR
Verification in U-Boot
=> sf probe 0:0
SF: Detected mt35xu512g with page size 256 Bytes, erase size 128 KiB, total 64 MiB
=> sf erase 0 100000
SF: 1048576 bytes @ 0x0 Erased: OK
=> sf write 82000000 0 1000
SF: 4096 bytes @ 0x0 Written: OK
=> sf read 81100000 0 1000
SF: 4096 bytes @ 0x0 Read: OK
=> cm.b 81100000 82000000 1000
Total of 4096 byte(s) were the same
Verification in Linux:
The booting log
......
nxp-fspi 20c0000.flexspi: mt35xu512aba (65536 Kbytes)
nxp-fspi 20c0000.flexspi: mt35xu512aba (65536 Kbytes)
......
Erase the FlexSPI flash
~ # mtd_debug erase /dev/mtd0 0x00000000 1048576
Erased 1048576 bytes from address 0x00000000 in flash
Write the FlexSPI flash
~ # dd if=/bin/ls.coreutils of=tp bs=4096 count=1
~ # mtd_debug write /dev/mtd0 0 4096 tp
Copied 4096 bytes from tp to address 0x00000000 in flash
Read the FlexSPI flash
Device Drivers
Layerscape LS1028A BSP User Guide, Rev. 0.3, 04/2019
NXP Semiconductors
55
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