verified-boot: Minimal support for booting U-Boot proper from SPL
This allows a board to configure verified boot within the SPL using
a FIT or FIT with external data. It also allows the SPL to perform
signature verification without needing relocation.
The board configuration will need to add the following feature defines:
CONFIG_SPL_CRYPTO_SUPPORT
CONFIG_SPL_HASH_SUPPORT
CONFIG_SPL_SHA256
In this example, SHA256 is the only selected hashing algorithm.
And the following booleans:
CONFIG_SPL=y
CONFIG_SPL_DM=y
CONFIG_SPL_LOAD_FIT=y
CONFIG_SPL_FIT=y
CONFIG_SPL_OF_CONTROL=y
CONFIG_SPL_OF_LIBFDT=y
CONFIG_SPL_FIT_SIGNATURE=y
Signed-off-by: Teddy Reed <teddy.reed@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Andreas Dannenberg <dannenberg@ti.com>
Acked-by: Sumit Garg <sumit.garg@nxp.com>
diff --git a/drivers/Makefile b/drivers/Makefile
index f6295d2..db5317c 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -10,6 +10,7 @@
ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_SPL_CRYPTO_SUPPORT) += crypto/
obj-$(CONFIG_SPL_I2C_SUPPORT) += i2c/
obj-$(CONFIG_SPL_GPIO_SUPPORT) += gpio/
obj-$(CONFIG_SPL_MMC_SUPPORT) += mmc/
diff --git a/drivers/crypto/rsa_mod_exp/mod_exp_sw.c b/drivers/crypto/rsa_mod_exp/mod_exp_sw.c
index dc6c064..3817fb3 100644
--- a/drivers/crypto/rsa_mod_exp/mod_exp_sw.c
+++ b/drivers/crypto/rsa_mod_exp/mod_exp_sw.c
@@ -32,6 +32,7 @@
.name = "mod_exp_sw",
.id = UCLASS_MOD_EXP,
.ops = &mod_exp_ops_sw,
+ .flags = DM_FLAG_PRE_RELOC,
};
U_BOOT_DEVICE(mod_exp_sw) = {