PROCESSOR-SDK-AM437X: Issue while booting from NAND

Hello Piyush,
Will you share the full boot log when trying to boot from NAND on the customer board?
Best,
-Hong

Hello Hong,

Please note below uboot log details.

CCCCCCCCCCCCCC
U-Boot SPL 2023.04-00001-g782d146723-dirty (Jan 10 2024 - 19:19:27 +0530)
Boot mode as per spl_boot_device is 7
---Trying to boot from--- MMC1 - 7
Trying to load image from device : 7SPL: Please implement spl_start_uboot() for your board
SPL: Direct Linux boot not active!
Loading Image Success from device : 7

U-Boot 2023.04-00001-g782d146723-dirty (Jan 10 2024 - 19:19:27 +0530)

CPU : AM437X-GP rev 1.2
Model: TI AM437x ETH
DRAM: 512 MiB

Board init is in process ...Please wait 11
Core: 41 devices, 16 uclasses, devicetree: separate
Warning: Device tree includes old 'u-boot,dm-' tags: please fix by 2023.07!
PMIC: TPS65218
NAND: 512 MiB
MMC: OMAP SD/MMC: 0
Loading Environment from FAT... OK
Net: Could not get PHY for ethernet@4a100000: addr 0

Warning: ethernet@4a100000 MAC addresses don't match:
Address in ROM is 88:01:f9:59:b7:54
Address in environment is 88:01:f9:35:d9:a2
eth2: ethernet@4a100000
Hit any key to stop autoboot: 0
=>

NAND Writting

=> mtdparts

device nand0 <nand.0>, # parts = 10
#: name size offset mask_flags
0: NAND.SPL 0x00040000 0x00000000 0
1: NAND.SPL.backup1 0x00040000 0x00040000 0
2: NAND.SPL.backup2 0x00040000 0x00080000 0
3: NAND.SPL.backup3 0x00040000 0x000c0000 0
4: NAND.u-boot-spl-os 0x00080000 0x00100000 0
5: NAND.u-boot 0x00100000 0x00180000 0
6: NAND.u-boot-env 0x00040000 0x00280000 0
7: NAND.u-boot-env.backup10x00040000 0x002c0000 0
8: NAND.kernel 0x00700000 0x00300000 0
9: NAND.file-system 0x1f600000 0x00a00000 0

active partition: nand0,0 - (NAND.SPL) 0x00040000 @ 0x00000000

defaults:
mtdids : nand0=nand.0
mtdparts: mtdparts=nand.0:256k(NAND.SPL),256k(NAND.SPL.backup1),256k(NAND.SPL.backup2),256k(NAND.SPL.backup3),512k(NAND.u-boot-spl-os),1m(NAND.u-boot),256k(NAND.u-boot)

=> nand info

Device 0: nand0, sector size 128 KiB
Page size 2048 b
OOB size 64 b
Erase size 131072 b
ecc strength 8 bits
ecc step size 512 b
subpagesize 512 b
options 0x0000400c
bbt options 0x00008000
=> nand erase.chip

NAND erase.chip: device 0 whole chip
Erasing at 0x1ffe0000 -- 100% complete.
OK
=> fatload mmc 0:1 0x82000000 MLO
156775 bytes read in 27 ms (5.5 MiB/s)

=> NAND write: device 0 offset 0x0, size 0x26467
156775 bytes written: OK
=> fatload mmc 0:1 0x82000000 u-boot.img
640852 bytes read in 64 ms (9.5 MiB/s)

=> nand write 0x82000000 NAND.u-boot 9c754

NAND write: device 0 offset 0x180000, size 0x9c754
640852 bytes written: OK

Here i reset the board.

CCCCCCCC
U-Boot SPL 2023.04-00001-g782d146723-dirty (Jan 10 2024 - 19:19:27 +0530)
Boot mode as per spl_boot_device is 5
---Trying to boot from--- NAND - 5
Trying to load image from device : 5SPL: Please implement spl_start_uboot() for your board
SPL: Direct Linux boot not active!

Best

Piyush Ghatole

Hello Piyush,
Thanks for sharing the log file.
We recenetly idendified the similar NAND boot issue with SDK 9.1 on AM335x.
Can we apply the two patchs on top of SDK 9.1, and re-test on your setup?
1. mtd: nand: omap_gpmc: Fix NAND in SPL for AM335x
git.ti.com/.../
2. mtd: rawnand: omap_elm: Fix elm_init definition
git.ti.com/.../

Best,
-Hong

Hello Hong,

Thank you for sharing details.

I modified files with the given patcmake ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
 Please check below for compilation errors.

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
  UPD     include/generated/timestamp_autogenerated.h
  ENVC    include/generated/env.txt
  ENVP    include/generated/env.in
  ENVT    include/generated/environment.h
  CC      cmd/version.o
  AR      cmd/built-in.o
  CC      drivers/mtd/nand/raw/omap_gpmc.o
drivers/mtd/nand/raw/omap_gpmc.c: In function ‘omap_select_ecc_scheme’:
drivers/mtd/nand/raw/omap_gpmc.c:989:25: error: ‘omap_calculate_ecc_bch’ undeclared (first use in this function); did you mean ‘_omap_calculate_ecc_bch’?
   nand->ecc.calculate = omap_calculate_ecc_bch;
                         ^~~~~~~~~~~~~~~~~~~~~~
                         _omap_calculate_ecc_bch
drivers/mtd/nand/raw/omap_gpmc.c:989:25: note: each undeclared identifier is reported only once for each function it appears in
At top level:
drivers/mtd/nand/raw/omap_gpmc.c:357:12: warning: ‘_omap_calculate_ecc_bch’ defined but not used [-Wunused-function]
 static int _omap_calculate_ecc_bch(struct mtd_info *mtd, const u8 *dat,
            ^~~~~~~~~~~~~~~~~~~~~~~
scripts/Makefile.build:256: recipe for target 'drivers/mtd/nand/raw/omap_gpmc.o' failed
make[4]: *** [drivers/mtd/nand/raw/omap_gpmc.o] Error 1
scripts/Makefile.build:397: recipe for target 'drivers/mtd/nand/raw' failed
make[3]: *** [drivers/mtd/nand/raw] Error 2
scripts/Makefile.build:397: recipe for target 'drivers/mtd/nand' failed
make[2]: *** [drivers/mtd/nand] Error 2
scripts/Makefile.build:397: recipe for target 'drivers/mtd' failed
make[1]: *** [drivers/mtd] Error 2
Makefile:1847: recipe for target 'drivers' failed
make: *** [drivers] Error 2

please suggest.

Best,

Piyush Ghatole

Hello Piyush,
Is your SW baseline on TI SDK 9.1 release?
www.ti.com/.../09.01.00.001
Best,
-Hong

Hello Hong,

Yes u-boot software base is 09.01.00.001.

/U-boot-9.0.1/ti-u-boot-2023.04+gitAUTOINC+d74d0993e2-gd74d0993e2 

Regards,

Piyush Ghatole

Hello Piyush,
Let me check it on my setup, and get back to you next week.
Best,
-Hong

Hello Hong,

The mentioned compilation error has been resolved, the mistake done at my end.

now with the given patch SPL and uboot is booted from NAND.

Thank you for your support.

Best

Piyush Ghatole

Hello Hong, 

i compiled u-boot with suggested changes and run  (MLO,u-boot,dtb,kernel and FS from nand), by giving manual command, it is working fine.

but in autoboot i am getting bootcmd error 

## Error: "bootcmd_nand0" not defined                                          
starting USB...                                                                
No working controllers found         

i checked for environment variables and i found bootcmd_nand but no variable set as bootcmd_nand0 

bootcmd_dhcp=devtype=dhcp; run boot_net_usb_start; if dhcp ${scriptaddr} ${boot_script_dhcp}; then source ${scriptaddr}; fi;setenv efi_fdtfil;
bootcmd_mmc0=devnum=0; run mmc_boot
bootcmd_nand=run nandboot
bootcmd_pxe=run boot_net_usb_start; dhcp; if pxe get; then pxe boot; fi

please suggest in which file i need to make changes to define bootcmd_nand0.

Best

Piyush Ghatole 

Hello Piyush,
You may customise this file for your user case.
git.ti.com/.../nand.h
Best,
-Hong