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iMXRT support #28

Merged
merged 14 commits into from Oct 23, 2023
Merged

iMXRT support #28

merged 14 commits into from Oct 23, 2023

Commits on Oct 23, 2023

  1. make: Unqoute CONFIG_OPTIMZIE before it is passed to gcc

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  2. make: Allow specifying an out-of-tree config file 

    This means that defconfig does not have to be copied to .config.
Also it properly expands to a full config, so the Makefile has
access to all config values, including default values
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  3. make: Add support for building for flash with XIP 

    Allows setting a custom main linker file, and also supply a different
default for when building into a flash (execute-in-place XIP) and ram
combination.
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  4. crypto: Don't crash if hash_ops/dsa_ops have not been fully populated 

    Previously it would result in NULL ptr dereferences if less than
CONFIG_CRYPTO_MAX_HASH_OPS or CONFIG_CRYPTO_MAX_DSA_OPS operations
had been registered
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  5. trivial: Whitespace cleanup

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  6. armv7m: Introduce arch armv7m (Cortex-M4/M7) 

    Adds basic support for ARMv7-M CPUs (most commonly Cortex-M4 and M7 range),
without support for MMU.
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  7. plat: Introduce basic iMXRT support 

    This adds (limited) iMXRT support, with certain things missing or not
implemented yet. Notable parts not yet supported:

 - Key revokation, including querying for revoked keys.
 - SLC fusing
 - UART/console is hard-coded
 - No boot reason detection
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  8. boot: Add boot driver helper for ARMv7m baremetal

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  9. boot: Split boot_image_auth_header into two parts to allow better reuse 

    On bare metal systems we might not want to verify the partitions inside
a bpak header, so split auth_header into two functions to allow reuse
of the hashing and signature verification part.
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  10. boot: Add helper boot_image_copy_and_hash 

    This version of the helper will copy partitions from one source range
to a destination range, such as from (memory mapped) flash to RAM and
do payload hashing of it for boot authentication.

In the future this could be accelerated via the crypto api for platforms
that has accelerators that do copy+hash in one go, such as iMXRT
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  11. boot: Fix error handling in boot_get_boot_partition

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  12. boot: Add a BOOT_SOURCE_CUSTOM for platforms/boards that need custom … 

    …processing

This lets board logic totally control the reading/copying and authentication
of the next image to boot. Potentially dangerous but required to handle
cases where for example board-specific logic decides between multiple
in-memory boot images.
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  13. mbedtls: Ensure mbedtls hash/crypto provider compiles for all configs 

    When _not_ selecting all of the CONFIG_MBEDTLS_MD_ values, ensure
to only build and register the parts configured and built with.
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  14. mbedtls: Optimize the config 

    Select asm optimizations as well as ECP optimizations. Slightly increases
binary size but payoff is big.
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