fw_setenv cannot pass mtd device erase

Dan Edmondson

Other Parts Discussed in Thread: AM1705, OMAPL138

Hi all,

My board is custom build, based on davinici da830evm. Processor is am1705, SDK is PSP-SDK-03.22.00.06.

I have been round and round with trying to get fw_setenv working but it never gets past the ioctl call with MEMERASE. However, fw_printenv is working fine. So I've come to the experts for help.

root@module:/sbin#
root@module:/sbin# fw_printenv csi_fs_dev
csi_fs_dev=5
root@module:/sbin# fw_setenv csi_fs_dev 6
MTD erase error on /dev/mtd3: Invalid argument
Error: can't write fw_env to flash
root@module:/sbin#

I have CONFIG_ENV_SIZE defined as 0x2800 in da830evm.h

I am trying to write to the uboot environment stored at /dev/mtd3 on a NAND flash device.

root@module:/sbin# cat /proc/mtd
dev: size erasesize name
mtd0: 00020000 00020000 "bootloader"
mtd1: 00020000 00020000 "AISUBL"
mtd2: 00120000 00020000 "U-Boot"
mtd3: 00040000 00020000 "U-BootEnv"
mtd4: 00600000 00020000 "kernel"
mtd5: 0fc20000 00020000 "rootfs1"
mtd6: 0fc20000 00020000 "rootfs2"
mtd7: 00002000 00001000 "BOARD-INFO"
mtd8: 001fe000 00001000 "CSI-Storage"

Here is the fw_env.config

/dev/mtd3 0x0000 0x2800 0x20000 1

Here is strace of the same command from above.

root@module:/sbin# strace fw_setenv csi_fs_dev 6
execve("/sbin/fw_setenv", ["fw_setenv", "csi_fs_dev", "6"], [/* 12 vars */]) = 0
brk(0)                                  = 0x13000
uname({sys="Linux", node="module", ...}) = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6f4b000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=13799, ...}) = 0
mmap2(NULL, 13799, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb6f47000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/arm-linux-gnueabi/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\230\204\1\0004\0\0\0"..., 512) = 512
lseek(3, 1264508, SEEK_SET)             = 1264508
read(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 2840) = 2840
lseek(3, 1261076, SEEK_SET)             = 1261076
read(3, "A)\0\0\0aeabi\0\1\37\0\0\0\0054T\0\6\2\10\1\t\1\22\4\23\1\24\1"..., 42) = 42
fstat64(3, {st_mode=S_IFREG|0755, st_size=1267348, ...}) = 0
mmap2(NULL, 1303968, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb6de6000
mprotect(0xb6f17000, 32768, PROT_NONE) = 0
mmap2(0xb6f1f000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x131000) = 0xb6f1f000
mmap2(0xb6f22000, 9632, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb6f22000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb6f46000
set_tls(0xb6f466d0, 0xb6f46db8, 0xb6f4d050, 0xb6f466d0, 0xb6f4d050) = 0
mprotect(0xb6f1f000, 8192, PROT_READ)   = 0
mprotect(0xb6f4c000, 4096, PROT_READ)   = 0
munmap(0xb6f47000, 13799)               = 0
stat64("/dev/mtd3", {st_mode=S_IFCHR|0600, st_rdev=makedev(90, 6), ...}) = 0
brk(0)                                  = 0x13000
brk(0x36000)                            = 0x36000
open("/dev/mtd3", O_RDONLY)             = 3
ioctl(3, MCE_GET_RECORD_LEN or MEMGETINFO or MTRRIOC_SET_ENTRY, {type=MTD_NANDFLASH, flags=MTD_WRITEABLE, size=0x40000, erasesize=0x20000, writesize=0x800, oobsize=0x40, padding=0}) = 0
ioctl(3, MEMGETBADBLOCK, [0])           = 0
lseek(3, 0, SEEK_SET)                   = 0
read(3, "\242[A\10baudrate=115200\0bootargs=mem"..., 10240) = 10240
close(3)                                = 0
open("/dev/mtd3", O_RDWR)               = 3
ioctl(3, MEMGETBADBLOCK, [0])           = 0
ioctl(3, MEMUNLOCK or MTRRIOC_SET_PAGE_ENTRY, {start=0, length=0x2800}) = -1 EOPNOTSUPP (Operation not supported)
ioctl(3, MCE_GET_LOG_LEN or MEMERASE or MTRRIOC_DEL_ENTRY, {start=0, length=0x2800}) = -1 EINVAL (Invalid argument)
write(2, "MTD erase error on /dev/mtd3: In"..., 47MTD erase error on /dev/mtd3: Invalid argument
) = 47
close(3)                                = 0
write(2, "Error: can't write fw_env to fla"..., 35Error: can't write fw_env to flash
) = 35
exit_group(1)                           = ?
+++ exited with 1 +++
root@module:/sbin#

thanks for reviewing this.

Dan

over 9 years ago

0 Titusrathinaraj Stalin over 9 years ago

TI__Guru** 116100 points

Hi Dan,

Please refer to the old TI E2E post as like yours.

http://e2e.ti.com/support/embedded/linux/f/354/t/116729.aspx

0 Dan Edmondson over 9 years ago in reply to Titusrathinaraj Stalin

Intellectual 860 points

Hello Titus,

I had read that thread before. It sounded promising but doesn't look like the problem was resolved. My situation is similar, everything else seems to work fine: nandwrite, flash_erase, flashcp, etc. I don't see any complaints about ecc but I don't think the fw_setenv is getting that far.

0 Titusrathinaraj Stalin over 9 years ago in reply to Dan Edmondson

TI__Guru** 116100 points

Hi Dan,

Could you please try with the attached "fw_setenv"

7608.fw_printenv.txt

Rename "fw_printenv.txt" to "fw_printenv" and also to ""fw_setenv"

I'm able to work with this attached binary on OMAPL138 LCDK board.

struct mtd_partition omapl138_lcdk_nandflash_partition[] = {
	{
		.name           = "u-boot env",
		.offset         = 0,
		.size           = SZ_128K,
		.mask_flags     = 0,	//Titus : Enable the permission
	},
	{
		.name           = "u-boot",
		.offset         = MTDPART_OFS_APPEND,
		.size           = SZ_512K,
		.mask_flags     = MTD_WRITEABLE,
	},
	{
		.name           = "kernel",
		.offset         = MTDPART_OFS_APPEND,
		.size           = SZ_2M,
		.mask_flags     = 0,
	},
	{
		.name           = "filesystem",
		.offset         = MTDPART_OFS_APPEND,
		.size           = MTDPART_SIZ_FULL,
		.mask_flags     = 0,
	},
};

Log:

root@omapl138-lcdk:~# cd /
root@omapl138-lcdk:/# ./fw_printenv
Warning: Bad CRC, using default environment
bootcmd=bootp; setenv bootargs root=/dev/nfs nfsroot=${serverip}:${rootpath} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostm
bootdelay=5
baudrate=115200
root@omapl138-lcdk:/# ./fw_setenv bootdelay 3
Warning: Bad CRC, using default environment
root@omapl138-lcdk:/# ./fw_printenv
bootcmd=bootp; setenv bootargs root=/dev/nfs nfsroot=${serverip}:${rootpath} ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostm
baudrate=115200
bootdelay=3
root@omapl138-lcdk:/# cat /etc/fw_env.config
# Configuration file for fw_(printenv/saveenv) utility.
# Up to two entries are valid, in this case the redundant
# environment sector is assumed present.
# Notice, that the "Number of sectors" is ignored on NOR and SPI-dataflash.
# Futhermore, if the Flash sector size is ommitted, this value is assumed to
# be the same as the Environment size, which is valid for NOR and SPI-dataflash

# NOR example
# MTD device name       Device offset   Env. size       Flash sector size       Number of sectors
#/dev/mtd1              0x0000          0x4000          0x4000
/dev/mtd0               0x0000          0x4000          0x20000

# MTD SPI-dataflash example
# MTD device name       Device offset   Env. size       Flash sector size       Number of sectors
#/dev/mtd5              0x4200          0x4200
#/dev/mtd6              0x4200          0x4200

# NAND example
#/dev/mtd0              0x4000          0x4000          0x20000                 2
root@omapl138-lcdk:/#
root@omapl138-lcdk:/#
root@omapl138-lcdk:/#
root@omapl138-lcdk:/#
root@omapl138-lcdk:/# cat /proc/partitions
major minor #blocks name

31        0        128 mtdblock0
31        1        512 mtdblock1
31        2       2048 mtdblock2
31        3     521600 mtdblock3
root@omapl138-lcdk:/#
root@omapl138-lcdk:/# cat /proc/mtd
dev:    size   erasesize name
mtd0: 00020000 00020000 "u-boot env"
mtd1: 00080000 00020000 "u-boot"
mtd2: 00200000 00020000 "kernel"
mtd3: 1fd60000 00020000 "filesystem"
root@omapl138-lcdk:/#

0 Dan Edmondson over 9 years ago in reply to Titusrathinaraj Stalin

Intellectual 860 points

Titus,

Thank you! That build works exactly as I want.

root@spm7:~# fw_setenv csi_fs_dev mtdblock6
root@spm7:~#
root@spm7:~#
root@spm7:~# fw_printenv
baudrate=115200
bootargs=mem=32M console=ttyS1,115200n8 root=/dev/mtdblock6 rw rootfstype=jffs2
bootcmd=nboot.e 0xc0700000 0 0x1a0000;bootm
bootdelay=3
bootfile=uImage
csi_module=CSI_MODULE_SPM
ethact=DaVinci-EMAC
ethaddr=70:b3:d5:3c:21:2c
stderr=serial
stdin=serial
stdout=serial
ver=U-Boot 2012.04.01 (Aug 15 2014 - 10:33:48)
csi_fs_dev=mtdblock6
root@spm7:~#

If this is a simple fix I'd like to get it into our code base, but in the least I can archive your fw_printenv image.

thanks,

Dan

0 Titusrathinaraj Stalin over 9 years ago in reply to Dan Edmondson

TI__Guru** 116100 points

Hi Dan,

Thanks for your update.

Apologize, actually I have downloaded this binary from internet which had the fix for "Error: can't write fw_env to flash" and actually that link referring the old bootloader source.

Try this and let me know.

3617.fw_env.c

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fw_setenv cannot pass mtd device erase