[U-Boot] [PATCH v5 1/2] qi_lb60: add nand spl support

Xiangfu Liu xiangfu at openmobilefree.net
Sat Oct 13 14:24:58 CEST 2012


On 10/13/2012 10:59 AM, Marek Vasut wrote:
>> From: Xiangfu <xiangfu at openmobilefree.net>
>> > 
>> >   The JZ4740 CPU can load 8KB from two different addresses:
>> >    1. the normal area up to 8KB starting from NAND flash address 0x00000000
>> >    2. 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
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