AArch32: Add `TRUSTED_BOARD_BOOT` support
This patch adds `TRUSTED_BOARD_BOOT` support for AArch32 mode.
To build this patch the "mbedtls/include/mbedtls/bignum.h"
needs to be modified to remove `#define MBEDTLS_HAVE_UDBL`
when `MBEDTLS_HAVE_INT32` is defined. This is a workaround
for "https://github.com/ARMmbed/mbedtls/issues/708"
NOTE: TBBR support on Juno AArch32 is not currently supported.
Change-Id: I86d80e30b9139adc4d9663f112801ece42deafcf
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
Co-Authored-By: Yatharth Kochar <yatharth.kochar@arm.com>
diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index 7a42c98..23e7867 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -224,9 +224,10 @@
/*******************************************************************************
* BL2 specific defines.
******************************************************************************/
-#if ARM_BL31_IN_DRAM
+#if ARM_BL31_IN_DRAM || defined(AARCH32)
/*
- * BL31 is loaded in the DRAM.
+ * For AArch32 BL31 is not applicable.
+ * For AArch64 BL31 is loaded in the DRAM.
* Put BL2 just below BL1.
*/
#define BL2_BASE (BL1_RW_BASE - PLAT_ARM_MAX_BL2_SIZE)