[U-Boot] [PATCH 1/1] board/ti/am335x/README: Document NAND programming

[Tom Rini]

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On 07/17/2013 05:52 PM, Scott Wood wrote:
> On 07/17/2013 11:24:30 AM, Tom Rini wrote:
>> The AM335x GP EVM ships with NAND.  Document programming of the
>> chip including the redundant locations that the ROM will check.
>> 
>> Signed-off-by: Tom Rini <trini at ti.com> --- board/ti/am335x/README
>> |   25 +++++++++++++++++++++++++ 1 file changed, 25
>> insertions(+)
>> 
>> diff --git a/board/ti/am335x/README b/board/ti/am335x/README 
>> index ccc5e16..3444d7e 100644 --- a/board/ti/am335x/README +++
>> b/board/ti/am335x/README @@ -13,6 +13,31 @@ documented in TI's
>> reference designs: - AM335x EVM SK - Beaglebone White -
>> Beaglebone Black +' +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 erase.part kernel +U-Boot # nand write
>> ${loadaddr} kernel 500000
> 
> You've already done a "nand erase.chip"...  Why do you need to
> erase "kernel" again?

No, that's just what I get for concatening my instructions too
quickly, thanks!

- -- 
Tom
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