Specify where to save Barebox env

[Sascha Hauer]

On Wed, Feb 18, 2015 at 07:55:46PM +0000, Boulais, Marc-Andre wrote:
> Good day,
> I am working on a phytec-phycore-OMAP446  system where the system
> boots from the SD card. On it, I have MLO+barebox.bin (v2015.02). The
> system boots ok.  However, when I set NV variables (from its prompt)
> and then do a "saveenv", I would like the environment to be saved in
> NAND. Is there a way to configure Barebox to do that ?

Normally barebox stores the environment on the medium it is started
from. Looking at arch/arm/boards/phytec-phycore-omap4460/board.c:

#ifdef CONFIG_PARTITION
        devfs_add_partition("nand0", 0x00000, SZ_128K, DEVFS_PARTITION_FIXED, "xload_raw");
        dev_add_bb_dev("xload_raw", "xload");
        devfs_add_partition("nand0", SZ_128K, SZ_512K, DEVFS_PARTITION_FIXED, "self_raw");
        dev_add_bb_dev("self_raw", "self0");
        devfs_add_partition("nand0", SZ_128K + SZ_512K, SZ_128K, DEVFS_PARTITION_FIXED, "env_raw");
        dev_add_bb_dev("env_raw", "env0");
#endif

The last two lines create /dev/env0 on nand. If you boot from nand the
environment should be stored there already.

Sascha


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