On Wednesday 29 April 2009, Jean-Christophe PLAGNIOL-VILLARD wrote:

too long please split

Update below.

=== CUT HERE From: David Brownell dbrownell@users.sourceforge.net

This updates the optional (non-default!) NAND support for the DaVinci DM6446 EVM:

- include MTD partitioning, defaulting to what Linux uses

- use a flash-based BBT, which among other things speeds bootup

This matches code that's now queued for mainline Linux, and might even merge in an upcoming 2.6.30-rc; and the MTIDS are set up so that the U-Boot $mtdparts environment variable can be passed as-is on the kernel command line as a cmdlinepart override.

Signed-off-by: David Brownell dbrownell@users.sourceforge.net --- include/configs/davinci_dvevm.h | 7 +++++++ 1 file changed, 7 insertions(+)

--- a/include/configs/davinci_dvevm.h +++ b/include/configs/davinci_dvevm.h @@ -119,6 +119,12 @@ #ifdef CONFIG_SYS_NAND_SMALLPAGE #define CONFIG_ENV_SECT_SIZE 512 /* Env sector Size */ #define CONFIG_ENV_SIZE SZ_16K +#define CONFIG_MTD_PARTITIONS +#define CONFIG_CMD_MTDPARTS +#define MTDIDS_DEFAULT \ + "nand0=davinci_nand.0" +#define MTDPARTS_DEFAULT \ + "mtdparts=davinci_nand.0:384k(bootloader)ro,4m(kernel),-(filesystem)" #else #define CONFIG_ENV_SECT_SIZE 2048 /* Env sector Size */ #define CONFIG_ENV_SIZE SZ_128K @@ -126,6 +132,7 @@ #define CONFIG_SKIP_LOWLEVEL_INIT /* U-Boot is loaded by a bootloader */ #define CONFIG_SKIP_RELOCATE_UBOOT /* to a proper address, init done */ #define CONFIG_SYS_NAND_BASE 0x02000000 +#define CONFIG_SYS_NAND_USE_FLASH_BBT #define CONFIG_SYS_NAND_HW_ECC #define CONFIG_SYS_MAX_NAND_DEVICE 1 /* Max number of NAND devices */ #define CONFIG_ENV_OFFSET 0x0 /* Block 0--not used by bootcode */