Failing to load Barebox Environment

[Juergen Beisert]

Gaurav Singh wrote:
> Hi all,
> Currently I'm trying to load a barebox environment image from NAND
> storage but can't load it correctly.
>
> I have given the path of my environment in the config :
>
> CONFIG_CONSOLE_FULL=y
> CONFIG_CONSOLE_ACTIVATE_FIRST=y
> # CONFIG_OF_FLAT_TREE is not set
> CONFIG_PARTITION=y
> CONFIG_DEFAULT_ENVIRONMENT=y
> CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/cartesio-evb2065/env/bin"
>
> After registering the NAND device I prepared a couple of Bad Block
> aware partitions :
>
> devfs_add_partition("nand0", 0x00000, 0x200000, PARTITION_FIXED,
> "self_raw"); dev_add_bb_dev("self_raw", "self0");
> devfs_add_partition("nand0", 0x200000, 0x200000, PARTITION_FIXED,
> "env_raw"); dev_add_bb_dev("env_raw", "env0");
>
> On compilation I get a barebox environment image - barebox_default_env.
> Flashed this image to the env0 partition via DFU -
> dfu -V 1 -P 24 /dev/env0
>
> From host sent the barebox_default_env (the default_env file is page
> alinged) via DFU to the NAND.
>
> The flashing worked fine.
>
> But now when I re-boot the system :
>
> barebox 2010.09.0-00003-ge5727b1-dirty (Sep 27 2010 - 17:18:50)
>
> Board: STMicroelectronics EVB2065 with Cartesio Plus
> NAND device: Manufacturer ID: 0x2c, Chip ID: 0x48 (Micron NAND 2GiB 3,3V
> 8-bit) Scanning device for bad blocks
> Malloc space: 0x00860000 -> 0x00e60000 (size  6 MB)
> Stack space : 0x00850000 -> 0x00858000 (size 32 kB)
>
>
> This system is stuck at this point. Investigating further - I see that
> we are stuck at
> in the common/environment.c
> int envfs_load(char *filename, char *dir)
> {
> ...
> buf = xmalloc(size);
> buf_free = buf;
> ret = read(envfd, buf, size); - Stuck here
>
> I'm wondering why this read is failing. Could the developers shed some
> light on this ?

Only some ideas:

Reading data from NAND really works? When this kind of trouble hits me last 
time, my memory map was broken (some data transfers ruins the stack content) 
and the system runs amok.

jbe

-- 
Pengutronix e.K.                              | Juergen Beisert             |
Linux Solutions for Science and Industry      | Phone: +49-8766-939 228     |
Vertretung Sued/Muenchen, Germany             | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686              | http://www.pengutronix.de/  |