[U-Boot] [PATCH v6 (cosmetic) 5/5] board/ti/am335x/README: update for NAND boot

[Tom Rini]

On Fri, Sep 20, 2013 at 03:10:59PM +0530, Pekon Gupta wrote:

> NAND boot mode on AM335x EVM has been verified, and steps
> to use it has been documented and update in this README
> 
> Signed-off-by: Pekon Gupta <pekon at ti.com>
> Acked-by: Peter Korsgaard <jacmet at sunsite.dk>
> ---
>  board/ti/am335x/README | 53 ++++++++++++++++++++++++++++++++++----------------
>  1 file changed, 36 insertions(+), 17 deletions(-)
> 
> diff --git a/board/ti/am335x/README b/board/ti/am335x/README
> index 2a30ab8..b35e24e 100644
> --- a/board/ti/am335x/README
> +++ b/board/ti/am335x/README
> @@ -46,23 +46,42 @@ NAND
>  The AM335x GP EVM ships with a 256MiB NAND available in most profiles.  In
>  this example to program the NAND we assume that an SD card has been
>  inserted with the files to write in the first SD slot and that mtdparts
> -have been configured correctly for the board.  As a time saving measure we
> -load MLO into memory in one location, copy it into the three locatations
> -that the ROM checks for additional valid copies, then load U-Boot into
> -memory.  We then write that whole section of memory to NAND.
> -
> -U-Boot # mmc rescan
> -U-Boot # env default -f -a
> -U-Boot # nand erase.chip
> -U-Boot # saveenv
> -U-Boot # load mmc 0 81000000 MLO
> -U-Boot # cp.b 81000000 81020000 20000
> -U-Boot # cp.b 81000000 81040000 20000
> -U-Boot # cp.b 81000000 81060000 20000
> -U-Boot # load mmc 0 81080000 u-boot.img
> -U-Boot # nand write 81000000 0 260000
> -U-Boot # load mmc 0 ${loadaddr} uImage
> -U-Boot # nand write ${loadaddr} kernel 500000
> +have been configured correctly for the board. All images are first loaded
> +into memory, then written to NAND.
> +
> +Step-1: Building u-boot for NAND boot
> +	Set following CONFIGxx options for NAND device.
> +	CONFIG_SYS_NAND_PAGE_SIZE	number of main bytes in NAND page
> +	CONFIG_SYS_NAND_OOBSIZE		number of OOB bytes in NAND page
> +	CONFIG_SYS_NAND_BLOCK_SIZE	number of bytes in NAND erase-block
> +	CONFIG_SYS_NAND_ECCPOS		ECC map for NAND page
> +	CONFIG_NAND_OMAP_ECCSCHEME	(refer doc/README.nand)
> +
> +Step-2: Flashing NAND via MMC/SD
> +	# select BOOTSEL to MMC/SD boot and boot from MMC/SD card
> +	U-Boot # mmc rescan
> +	# erase flash
> +	U-Boot # nand erase.chip
> +	U-Boot # env default -f -a
> +	U-Boot # saveenv
> +	# flash MLO. Redundant copies of MLO are kept for failsafe
> +	U-Boot # load mmc 0 0x82000000 MLO
> +	U-Boot # nand write 0x82000000 0x00000 0x20000
> +	U-Boot # nand write 0x82000000 0x20000 0x20000
> +	U-Boot # nand write 0x82000000 0x40000 0x20000
> +	U-Boot # nand write 0x82000000 0x60000 0x20000
> +	# flash u-boot.img
> +	U-Boot # load mmc 0 0x82000000 u-boot.img
> +	U-Boot # nand write 0x82000000 0x80000 0x60000
> +	# flash kernel image
> +	U-Boot # load mmc 0 0x82000000 uImage
> +	U-Boot # nand write 0x82000000 ${nandsrcaddr} ${nandimgsize}
> +	# flash filesystem image
> +	U-Boot # load mmc 0 0x82000000 filesystem.img
> +	U-Boot # nand write 0x82000000 {loadaddress} 0x300000

Missing $ on {loadaddress}.  Fine with fixing this up as part of
applying so:

Acked-by: Tom Rini <trini at ti.com>

-- 
Tom
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