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TI's K3 boot architecture mandates a x509 certificate for every boot image. While signing the image K3 ROM allows for two types of keys based on which the boot image gets loaded in different ways: - Degenerate RSA keys: This generates a signature which is equal to the digest. When ROM sees this, it does a DMA for copying the images, which significantly improves the boot time. - Any other key: Does a memcpy to load the image. This is introduced as a fallback for DMA copy. Add a script for generating boot images with the above options. Default generates image using rsa degenerate key in order to improve boot time. Signed-off-by:
Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by:
Andreas Dannenberg <dannenberg@ti.com>
TI's K3 boot architecture mandates a x509 certificate for every boot image. While signing the image K3 ROM allows for two types of keys based on which the boot image gets loaded in different ways: - Degenerate RSA keys: This generates a signature which is equal to the digest. When ROM sees this, it does a DMA for copying the images, which significantly improves the boot time. - Any other key: Does a memcpy to load the image. This is introduced as a fallback for DMA copy. Add a script for generating boot images with the above options. Default generates image using rsa degenerate key in order to improve boot time. Signed-off-by:
Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by:
