Updates the SPL build so that when CONFIG_TI_SECURE_DEVICE is in use (which it should be when building for secure parts), the TI secure development package is used to create a valid secure boot image. The u-boot SPL build processes is NOT aware of the details of creating the boot image - all of that information is encapsulated in the TI secure development package, which is available from TI. More info can be found in README.ti-secure
Right now, two image types are generated, MLO and X-LOADER. The types are important, as certain boot modes implemented by the device's ROM boot loader require one or the other (they are not equivalent). The output filenames are u-boot-spl_HS_MLO and u-boot-spl_HS_X-LOADER. The u-boot-spl_HS_MLO image is also copied to a file named MLO, which is the name that the device ROM bootloader requires for loading from the FAT partition of an SD card (same as on non-secure devices).
Signed-off-by: Daniel Allred d-allred@ti.com Signed-off-by: Madan Srinivas madans@ti.com --- arch/arm/cpu/armv7/omap5/config.mk | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/arch/arm/cpu/armv7/omap5/config.mk b/arch/arm/cpu/armv7/omap5/config.mk index ef2725a..a7e55a5 100644 --- a/arch/arm/cpu/armv7/omap5/config.mk +++ b/arch/arm/cpu/armv7/omap5/config.mk @@ -6,8 +6,14 @@ # SPDX-License-Identifier: GPL-2.0+ #
+include $(srctree)/$(CPUDIR)/omap-common/config_secure.mk + ifdef CONFIG_SPL_BUILD +ifeq ($(CONFIG_TI_SECURE_DEVICE),y) +ALL-y += u-boot-spl_HS_MLO u-boot-spl_HS_X-LOADER +else ALL-y += MLO +endif else ALL-y += u-boot.img endif