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@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?
-Scott