Dear Wolfgang Denk
On Wed, Jun 2, 2010 at 2:07 PM, Wolfgang Denk wd@denx.de wrote:
Dear Maxime Boure,
In message AANLkTin86aE1ZzqYZI0UvyarrUex_0-gD5TAvPNtrsB3@mail.gmail.com you wrote:
#define CONFIG_SYS_ENV_SECT_SIZE boot_flash_sec #define CONFIG_ENV_OFFSET boot_flash_off #define ONENAND_ENV_OFFSET 0x200000 /* environment starts here */ #define CONFIG_ENV_ADDR ONENAND_ENV_OFFSET
Well, and what are the seffings for boot_flash_sec, boot_flash_off ?
My settings : boot_flash_base 0x20000000 boot_flash_off 0x200000 boot_flash_sec 0x20000 boot_flash_env_addr 0x200000
CONFIG_ENV_SIZE is still missing...
#define CONFIG_ENV_SIZE SZ_512K /* Total Size Environment * and #define SZ_512K 0x00080000
Device offset --> if I set /dev/mtd2 and this mtd is the one with the environment it has to be set to 0x0000
Right, this matches your MTD settings (partition mtd2 starts at the same offset 0x200000.
However, in your board configuration above I see that CONFIG_ENV_ADDR (which is supposed to be an *address* is defined with an *offset* value. This looks wrong to me. I would be surprised if this works, but then - I haven't worked with OneNAND yet.
Env. size --> the size is 0x80000
I cannot comment on this - I haven't seen the CONFIG_ENV_SIZE settings from your board config. It could be as well that you have two redundant copies (of smaller size, obviously) in your partition.
Flash sector size --> is the erase block size so in my case 0x40000
Above you write that CONFIG_SYS_ENV_SECT_SIZE = boot_flash_sec = 0x20000. This is inconsistent, then.
I tried with this configuration in fw_env.config : /dev/mtd2 0x0000 0x80000 0x20000
I had this error with the command fw_printenv : Too few good blocks within range
Number of sectors ---> well ... I don't really know :)
This depends on the sizes, and on how many redundant copies you maintain. We don't know your board config file...
I am wrong ?
Yes - otherwise there would be no problems ;-)
Indeed...
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Landing: a controlled mid-air collision with a planet.
Best regards,
Maxime