On 10/13/2012 10:59 AM, Marek Vasut wrote:
From: Xiangfu xiangfu@openmobilefree.net
The JZ4740 CPU can load 8KB from two different addresses:
- the normal area up to 8KB starting from NAND flash address 0x00000000
- the backup area up to 8KB starting from NAND flash address 0x00002000
After create u-boot-spl.bin. it needs those 4 commands create final image for jz4740 cpu. ~~~~ dd if=spl/u-boot-spl.bin of=u-boot-nand.bin conv=sync bs=8192 count=1 dd if=spl/u-boot-spl.bin of=u-boot-nand.bin conv=sync,notrunc oflag=append bs=8192 count=1 tr '\0' '\377' < /dev/zero | dd of=u-boot-nand.bin conv=sync,notrunc oflag=append bs=16384 count=1 cat u-boot-nand.bin u-boot.bin > u-boot-nand-final.bin
Can you not do this in the linker script? Or implement CPU-specific build target that does this?
Hi Marex
Thanks for reply, I don't know how to do this in linker script. but I have plan to send out a patch on Makefile.
Attachment is the patch. do you think it is ok for upstream? if it's ok. I will send out this patch in another email.
Xiangfu