2 Mar
2011
2 Mar
'11
5:51 a.m.
On Tuesday, March 01, 2011 8:20 PM, V, Aneesh wrote: [...]
For OMAP4:
- An 8 byte GP header is enough for booting from external MMC FAT partition
- A dummy CH with a dummy CHSETTINGS is essential for booting from the RAW partition of eMMC or external MMC. This works for FAT booting too.
- A full configuration with proper CHSETTINGS and CHRAM will help us in directly booting from SDRAM avoiding the SPL, but this is not supported on all revisions of OMAP3/4
IMHO, let's have one image type(what John has created now) for (1) and (2). It doesn't really harm to have 512 bytes of additional header attached to your image when it makes it suitable for different types of booting.
For 3, if that is supported in U-Boot in future, we will need a new image type, maybe something like omapchimage.
Let me know if you had any special considerations for your SoC.
(My response on this yesterday bounced back for some reason)
I will try out this patch and see if the additional 512 bytes works for us also.
Regards, Vaibhav