Add support for BL2 in XIP memory
In some use-cases BL2 will be stored in eXecute In Place (XIP) memory,
like BL1. In these use-cases, it is necessary to initialize the RW sections
in RAM, while leaving the RO sections in place. This patch enable this
use-case with a new build option, BL2_IN_XIP_MEM. For now, this option
is only supported when BL2_AT_EL3 is 1.
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
diff --git a/include/plat/common/common_def.h b/include/plat/common/common_def.h
index 84923b9..827d416 100644
--- a/include/plat/common/common_def.h
+++ b/include/plat/common/common_def.h
@@ -78,9 +78,19 @@
#define BL1_CODE_END BL_CODE_END
#define BL1_RO_DATA_BASE BL_RO_DATA_BASE
#define BL1_RO_DATA_END round_up(BL1_ROM_END, PAGE_SIZE)
+#if BL2_IN_XIP_MEM
+#define BL2_CODE_END BL_CODE_END
+#define BL2_RO_DATA_BASE BL_RO_DATA_BASE
+#define BL2_RO_DATA_END round_up(BL2_ROM_END, PAGE_SIZE)
+#endif /* BL2_IN_XIP_MEM */
#else
#define BL_RO_DATA_BASE 0
#define BL_RO_DATA_END 0
#define BL1_CODE_END round_up(BL1_ROM_END, PAGE_SIZE)
+#if BL2_IN_XIP_MEM
+#define BL2_RO_DATA_BASE 0
+#define BL2_RO_DATA_END 0
+#define BL2_CODE_END round_up(BL2_ROM_END, PAGE_SIZE)
+#endif /* BL2_IN_XIP_MEM */
#endif /* SEPARATE_CODE_AND_RODATA */
#endif /* __COMMON_DEF_H__ */