Uwe, On 11/11/2014 06:06 AM, Uwe Kleine-König wrote: >>> >>> Do you have a command line for me? I used >>> >>> scripts/kwboot -b images/barebox-netgear-rn104-uart.img /dev/ttyUSB0 >>> >>> which took much longer than I expected (didn't time it, but I'd say in >>> the several minutes range). And I didn't know what to do then. Ctrl-C >>> and then connecting microcom was wrong. Adding -t to the command line >>> above, too. > Any hints on how kwboot is used? It loads the binary into RAM and runs > it from there, right? I timed my above command and it took 38m28.225s > for my image (341304 bytes). > This is how I use kwboot: 1. Boot your board (with stock U-Boot and Linux) and extract the bootloader. According to my notes, I just grabbed a couple megabytes: $ dd if=/dev/mtd0 of=/mtd0.dump bs=1M count=2 I guess you can grab the entire bootloader partition (if you have one). 2. Run kwbimage tool and dump the output to the appropriate board directory: $ ./scripts/kwbimage -x -i /srv/nfs/mtd0.dump -o arch/arm/boards/plathome-openblocks-ax3/ Fix the produced kwbimage.cfg to boot from UART (actually, I think it's not needed): diff --git a/arch/arm/boards/plathome-openblocks-ax3/kwbimage.cfg b/arch/arm/boards/plathome-openblocks-ax3/kwbimage.cfg index 219c2ec..fd6c0df 100644 --- a/arch/arm/boards/plathome-openblocks-ax3/kwbimage.cfg +++ b/arch/arm/boards/plathome-openblocks-ax3/kwbimage.cfg @@ -1,5 +1,5 @@ VERSION 1 -BOOT_FROM spi +BOOT_FROM uart DESTADDR 00600000 EXECADDR 006b0000 NAND_BLKSZ 00000000 3. Make your barebox $ make 4. Run kwboot and have fun! $ ./scripts/kwboot -b images/barebox-plathome-openblocks-ax3.img -t -B 115200 /dev/ttyUSB0 After kwboot transfers the image, it starts a terminal. You don't need to open another one, and close everything listening on ttyUSB0 or kwboot won't work fine. It should take less than a minute to transfer the image. This works for me on every mvebu board I have, but it was a major pain at first :/ -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
