AM37xx NAND selective boot

Herman Brunner

Hi,

Does AM37xx have any mechanism for checking signed image of SPL (Secondary Program Loader)?

Could you give a advice how to prevent to boot other images than that are allowed. Locking of whole flash is not an option.

BR,

Karol

over 13 years ago

0 Renjith Thomas over 13 years ago

Guru 31670 points

Looks like there is no support for secure boot exists in AM37xx. But still curious to know, are you worried about the duplicating the hardware? If so, there are lot of other options to prevent the device being booted up without having your image exactly.

0 Herman Brunner over 13 years ago in reply to Renjith Thomas

Intellectual 580 points

I'm not worried but I wanted to know, just in case. From my project perspective it is not so important but I saw some processors which had hardware ip to check signed bootcode images in nand - I know that it is a bit paranoid

Thanks,

0 Renjith Thomas over 13 years ago in reply to Herman Brunner

Guru 31670 points

Hope you've explored OMAP4 which has secure boot support.

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AM37xx NAND selective boot