[U-Boot] [PATCH 01/22] mkimage: Add OMAP boot image support

Bedia, Vaibhav
2011-03-04T05:27:03Z

Aneesh,

On Tuesday, March 01, 2011 8:34 PM, Bedia, Vaibhav wrote:
> On Tuesday, March 01, 2011 8:20 PM, V, Aneesh wrote:
>>
>> For OMAP4:
>> 1. An 8 byte GP header is enough for booting from external
>> MMC FAT partition
>> 2. 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.
>> 3. 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.
>
> I will have to check if the additional 512 bytes will cause a
> problem for TI81XX GP devices. We haven't tried with the extra
> 512 bytes yet.
>

I checked the image with the additional 512bytes on TI81XX. It does not work.

If its fine with you I'll work on using a version flag for attaching the 512byte.
How about something on the lines of what was done for imximage did recently?

Regards,
Vaibhav