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| author | Tom Rini <trini@ti.com> | 2013-07-17 12:24:30 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-07-30 09:21:37 -0400 |
| commit | 97559b5203e01b033e01aac2d5c0858b2bdaa7aa (patch) | |
| tree | fca8cd50d52c0eb81d1662dd27aa6a66cf9f8541 /board | |
| parent | ea70690d6636bf1461ab601fbaa00039896d76c6 (diff) | |
| download | talos-obmc-uboot-97559b5203e01b033e01aac2d5c0858b2bdaa7aa.tar.gz talos-obmc-uboot-97559b5203e01b033e01aac2d5c0858b2bdaa7aa.zip | |
board/ti/am335x/README: Document NAND programming
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>
Diffstat (limited to 'board')
| -rw-r--r-- | board/ti/am335x/README | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/board/ti/am335x/README b/board/ti/am335x/README index ccc5e16066..6d4535233d 100644 --- a/board/ti/am335x/README +++ b/board/ti/am335x/README @@ -13,6 +13,30 @@ 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 write ${loadaddr} kernel 500000 Falcon Mode =========== |
