Hello,
I've bought a 8MMINID4-EVK and want to test a NAND Flash. The only part number that I found in the schematic is MT29F64G08CBABBWP-12IT:B (SPF-35104_B1.pdf). It's a "NAND Flash MLC 64G 8GX8 TSOP". Using the example_kernel_nand.uuu script with: imx-boot-imx8mmddr4evk-nand.bin-flash_ddr4_evk, Image-imx8mmevk.bin, imx8mm-ddr4-evk.dtb, fsl-image-mfgtool-initramfs-imx_mfgtools.cpio.gz.u-boot. I get:
Found New UDC: ci_hdrc.0
ci_hdrc.0 0
ffs.utp0
[ 3.827324] file system registered
[ 3.840490] Mass Storage Function, version: 2009/09/11
[ 3.845818] LUN: removable file: (no medium)
run utp at /dev/usb-utp0/ep0
.
uuu fastboot client 1.0.0 [built [ 3.855595] read descriptors
Nov 7 2019 19:25:07]
Start init[ 3.861405] read strings
usb
write string
Start handle command
[ 4.809858] imx-drm 32c00000.bus:display-subsystem: [drm] Cannot find any crtc or sizes
uuc /dev/utp
uuc 0.6 [built Nov 7 2019 19:25:07]
UTP: Waiting for /dev/utp to appear
run shell cmd: cat /proc/mtd
run shell cmd: cat /proc/mtd | while read dev size erase name; do mtd=${dev:3}; mtd=${mtd%:}; name=${name%\"}; name=${name#\"}; echo export $name=$mtd >> /tmp/mtd.sh; done;
run shell cmd: chmod 777 /tmp/mtd.sh
[ 5.720168] Console: switching to colour frame buffer device 240x67
[ 5.775206] imx-drm 32c00000.bus:display-subsystem: [drm] fb0: imx-drmdrmfb frame buffer device
run shell cmd: mount -t debugfs debugfs /sys/kernel/debug
run shell cmd: source /tmp/mtd.sh; flash_erase /dev/mtd${nandboot} 0 0
WOpen:/tmp/boot
run shell cmd: source /tmp/mtd.sh; cd /tmp; if [[ ! `cat /sys/devices/soc0/soc_id` =~ .*MX8(Q|DXL|MN|MP).* ]]; then pad="-x"; fi; kobs-ng init $pad -v --chip_0_device_path=/dev/mtd${nandboot} /tmp/boot
run shell cmd: if [[ `cat /tmp/mtd.sh` = *"nandfit"* ]]; then source /tmp/mtd.sh; flash_erase /dev/mtd${nandfit} 0 0; dd if=/tmp/boot of=/tmp/fit; nandwrite -p /dev/mtd${nandfit} -p /tmp/fit; fi
6973+1 records in
6973+1 records out
3570256 bytes (3.6 MB, 3.4 MiB) copied, 0.030494 s, 117 MB/s
run shell cmd: source /tmp/mtd.sh; flash_erase /dev/mtd${nandkernel} 0 0
WOpen:/tmp/img
run shell cmd: source /tmp/mtd.sh; nandwrite -p /dev/mtd${nandkernel} -p /tmp/img
[ 9.002154] random: crng init done
run shell cmd: source /tmp/mtd.sh; flash_erase /dev/mtd${nanddtb} 0 0
WOpen:/tmp/dtb
run shell cmd: source /tmp/mtd.sh; nandwrite -p /dev/mtd${nanddtb} -p /tmp/dtb
run shell cmd: source /tmp/mtd.sh; flash_erase /dev/mtd${nandrootfs} 0 0
run shell cmd: source /tmp/mtd.sh; ubiattach /dev/ubi_ctrl -m ${nandrootfs}
[ 19.769106] ubi: refuse attaching mtd5 - MLC NAND is not supported
ubiattach: error!: cannot attach mtd5
error 22 (Invalid argument)
As I can understand reading the driver (https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/mtd/ubi/build.c?h=lf-5.10.y) the MLC NAND are not supported by the linux kernel. I was wondering that this part number is in the schematic and I want to ask which NAND flash can I test with the socket of the EVK?
