Hi All,
On default i.MX7D sabreSD board, does not have NAND flash. So we mounted MT29F32G08CBADB 4GB nand in the device footprint. After adding NAND support in linux kernel and u-boot, I am able to detect, read and write to the NAND flash. Now I want to boot from this NAND flash. For this I am trying to flash the u-boot to NAND flash using below command in kernel.
kobs-ng init -x -v /boot/u-boot.imx
But I am getting below error.
root@imx7:~# kobs-ng init -x -v
MTD CONFIG:
chip_0_device_path = "/dev/mtd0"
chip_1_device_path = "(null)"
search_exponent = 2
data_setup_time = 80
data_hold_time = 60
address_setup_time = 25
data_sample_time = 6
row_address_size = 3
column_address_size = 2
read_command_code1 = 0
read_command_code2 = 48
boot_stream_major_version = 1
boot_stream_minor_version = 0
boot_stream_sub_version = 0
ncb_version = 3
boot_stream_1_address = 0
boot_stream_2_address = 0
unable to create a temporary file
root@esomimx7:~# kobs-ng init -x -v u-boot
u-boot-nand.imx u-boot.imx
root@esomimx7:~# kobs-ng init -x -v u-boot.imx
MTD CONFIG:
chip_0_device_path = "/dev/mtd0"
chip_1_device_path = "(null)"
search_exponent = 2
data_setup_time = 80
data_hold_time = 60
address_setup_time = 25
data_sample_time = 6
row_address_size = 3
column_address_size = 2
read_command_code1 = 0
read_command_code2 = 48
boot_stream_major_version = 1
boot_stream_minor_version = 0
boot_stream_sub_version = 0
ncb_version = 3
boot_stream_1_address = 0
boot_stream_2_address = 0
-- We add the 1k-padding to the uboot.
.tmp_kobs_ng: verifying using key '00000000000000000000000000000000'
.tmp_kobs_ng: is a valid bootstream for key '00000000000000000000000000000000'
mtd: use new bch layout raw access mode
mtd: opening: "/dev/mtd0"
NFC geometry :
ECC Strength : 40
Page Size in Bytes : 8762
Metadata size : 10
ECC Chunk Size in byte : 1024
ECC Chunk count : 8
Block Mark Byte Offset : 7692
Block Mark Bit Offset : 0
====================================================
mtd: opened '/dev/mtd0' - '(null)'
mtd: mtd size too small
mtd_init failed!
I referred this https://community.nxp.com/thread/430107 link with similar issue. But that solution was not help full for me. Can anyone help me on this issue? Also May I know how to flash to NAND using MFG tool? Is there any other support to be added for this too? Your suggestions are greatly appreciated.
Thanks,
Gopinath S
