Can someone show me what I might be missing or doing wrong with getting MTD to work in UBOOT using NAND flash?
It seems to work fine with QSPI Flash but I can't seem to get it to work in NAND Flash. My flash itself is working fine, I can read/write to nand and boot a kernel from nand
Here is my uboot output using qspi mtd parts:
U-Boot 2017.03 (Mar 19 2018 - 13:10:05 +0100)
CPU: Freescale i.MX7D rev1.2 996 MHz (running at 792 MHz)
CPU: Commercial temperature grade (0C to 95C) at 30C
Reset cause: POR
Model: Freescale i.MX7D SabreSD Board
Board: i.MX7D SABRESD RevD in secure mode
DRAM: 1 GiB
Setup FEC
Setup NAND
Setup QSPI
Setup Board IO
PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x11
NAND: 1024 MiB
MMC: FSL_SDHC: 0
Display: TFT43AB (480x272)
Video: 480x272x24
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc0 is current device
Net: eth0: ethernet@30be0000 [PRIME], eth1: ethernet@30bf0000
Normal Boot
Hit any key to stop autoboot: 0
=> sf probe
SF: Detected mx25l51235f with page size 256 Bytes, erase size 64 KiB, total 64 MiB
=> setenv mtdids nor0=30bb0000.qspi
=> setenv mtdparts mtdparts=30bb0000.qspi:1m(U-Boot),512k(Env),512k(DTB),2m(User_FS),12m(Data_FS),4m(Factory_FS),34m(Ramdisk),10m(Linux)
=> mtddevice nor0 <30bb0000.qspi>, # parts = 8
#: name size offset mask_flags
0: U-Boot 0x00100000 0x00000000 0
1: Env 0x00080000 0x00100000 0
2: DTB 0x00080000 0x00180000 0
3: User_FS 0x00200000 0x00200000 0
4: Data_FS 0x00c00000 0x00400000 0
5: Factory_FS 0x00400000 0x01000000 0
6: Ramdisk 0x02200000 0x01400000 0
7: Linux 0x00a00000 0x03600000 0active partition: nor0,0 - (U-Boot) 0x00100000 @ 0x00000000
defaults:
mtdids : none
mtdparts: none
Changing mtd to Nand:
=> nand device
Device 0: nand0, sector size 256 KiB
Page size 4096 b
OOB size 224 b
Erase size 262144 b
subpagesize 4096 b
options 0x 200
bbt options 0x 0
=> nand infoDevice 0: nand0, sector size 256 KiB
Page size 4096 b
OOB size 224 b
Erase size 262144 b
subpagesize 4096 b
options 0x 200
bbt options 0x 0
=> setenv mtdids nand0=33002000.gpmi-nand
=> setenv mtdparts mtdparts=33002000.gpmi-nand:8m(U-Boot),1m(Env),1m(DTB),4m(User_FS),32m(Data_FS),4m(Factory_FS),64m(Ramdisk),14m(Linux)
=> mtd
Device nand0 not found!
I tried the latest uboot, also loading from flash is working fine as can been seen below
U-Boot 2018.03 (Apr 05 2018 - 13:26:38 +0200)
CPU: Freescale i.MX7D rev1.2 1000 MHz (running at 792 MHz)
CPU: Commercial temperature grade (0C to 95C) at 34C
Reset cause: POR
Model: Freescale i.MX7 SabreSD Board
Board: i.MX7D SABRESD in non-secure mode
DRAM: 1 GiB
PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x11
NAND: 1024 MiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from NAND... OK
Video: MXSFB: 'videomode' variable not set!
In: serial
Out: serial
Err: serial
Net: FEC0
Hit any key to stop autoboot: 0
=> setenv mtdids nand0=33002000.gpmi-nand
=> setenv mtdparts mtdparts=33002000.gpmi-nand:8m(U-Boot),1m(Env),1m(DTB),4m(User_FS),32m(Data_FS),4m(Factory_FS),64m(Ramdisk),14m(Linux)
=> nand read ${loadaddr} ${kernel_addr_nand} 0x00800000NAND read: device 0 offset 0x7200000, size 0x800000
8388608 bytes read: OK
=> nand read ${fdt_addr} ${fdt_addr_nand} 0x00100000NAND read: device 0 offset 0x900000, size 0x100000
1048576 bytes read: OK
=> bootz ${loadaddr} - ${fdt_addr};
Kernel image @ 0x80800000 [ 0x000000 - 0x6118f0 ]
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Loading Device Tree to bdf2d000, end bdf3b789 ... OKStarting kernel ...
Hi Peter
one can try follow sect.sect.4.7.2 Running the image from NAND attached Linux Guide
using ../More_scripts/mfgtool2-yocto-mx-19x19-arm2-nand.vbs mfg tools for programming
images to nand:
https://www.nxp.com/webapp/Download?colCode=IMX6_L4-1-15_2-0-0_MFG-TOOL&appType=license&location=nul...
also issue may be posted on uboot mail list
Best regards
igor
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