On Tue, Jan 07, 2020 at 09:25:53AM +0800, Kever Yang wrote:
Hi Tom, Simon,
On 2020/1/6 下午10:20, Tom Rini wrote:
On Mon, Jan 06, 2020 at 01:47:25PM +0100, Matthias Schoepfer wrote:
Hi!
I have had trouble booting a fitImage packed kernel for dragonboard410c, which is an ARM64 platform. After days and days of debugging, I found that the fdt is 4-byte aligned. But within the linux kernel, Documentation/arm64/booting.txt says, fdt must be 8 byte aligned.
If I change the alignment by means of fdt_high, the Kernel boots, otherwise, it hangs.
Is there an option to align the fitImage to 8-byte boundaries, and if not, is it feasible to submit a patch or will this never have a chance to get merged?!
That's interesting. It sounds like you need to look at boot_relocate_fdt() perhaps? Thanks!
When I use the FIT image, I met another issue:
The emmc/sd read is by block which is 512byte;
The FIT image header is always not 512byte align, and the entry of
image in FIT is always not aligned to block;
- The image read from block device always need memory coppy which
make it slow.
I can truncate the image in FIT align to 512 byte, but not able to make the
header which is dtb 512byte align, any idea to implement this?
I don't quite follow, sorry. Don't you control where the image will be written to in eMMC?