Tegra: remove support for SEPARATE_CODE_AND_RODATA=0

Tegra platforms will not be supporting SEPARATE_CODE_AND_RODATA=0.

This patch uses the common macros provided by bl_common.h as a result
and adds a check to assert if SEPARATE_CODE_AND_RODATA set is not set
to '1'.

Change-Id: I376ea60c00ad69cb855d89418bdb80623f14800e
Signed-off-by: Kalyani Chidambaram <kalyanic@nvidia.com>

plat/nvidia/tegra/common/tegra_bl31_setup.c

@@ -39,15 +39,8 @@
  * Declarations of linker defined symbols which will help us find the layout
  * of trusted SRAM
  ******************************************************************************/
-
 IMPORT_SYM(uint64_t, __RW_START__,	BL31_RW_START);
 
-static const uint64_t BL31_RW_END	= BL_END;
-static const uint64_t BL31_RODATA_BASE	= BL_RO_DATA_BASE;
-static const uint64_t BL31_RODATA_END	= BL_RO_DATA_END;
-static const uint64_t TEXT_START	= BL_CODE_BASE;
-static const uint64_t TEXT_END		= BL_CODE_END;
-
 extern uint64_t tegra_bl31_phys_base;
 
 static entry_point_info_t bl33_image_ep_info, bl32_image_ep_info;
@@ -314,11 +307,11 @@ void bl31_plat_runtime_setup(void)
 void bl31_plat_arch_setup(void)
 {
 	uint64_t rw_start = BL31_RW_START;
-	uint64_t rw_size = BL31_RW_END - BL31_RW_START;
-	uint64_t rodata_start = BL31_RODATA_BASE;
-	uint64_t rodata_size = BL31_RODATA_END - BL31_RODATA_BASE;
-	uint64_t code_base = TEXT_START;
-	uint64_t code_size = TEXT_END - TEXT_START;
+	uint64_t rw_size = BL_END - BL31_RW_START;
+	uint64_t rodata_start = BL_RO_DATA_BASE;
+	uint64_t rodata_size = BL_RO_DATA_END - BL_RO_DATA_BASE;
+	uint64_t code_base = BL_CODE_BASE;
+	uint64_t code_size = BL_CODE_END - BL_CODE_BASE;
 	const mmap_region_t *plat_mmio_map = NULL;
 #if USE_COHERENT_MEM
 	uint32_t coh_start, coh_size;

plat/nvidia/tegra/include/platform_def.h

@@ -12,6 +12,13 @@
 
 #include <tegra_def.h>
 
+/*******************************************************************************
+ * Check and error if SEPARATE_CODE_AND_RODATA is not set to 1
+ ******************************************************************************/
+#if !SEPARATE_CODE_AND_RODATA
+#error "SEPARATE_CODE_AND_RODATA should be set to 1"
+#endif
+
 /*
  * Platform binary types for linking
  */
@@ -72,4 +79,5 @@
 #define MAX_IO_DEVICES			U(0)
 #define MAX_IO_HANDLES			U(0)
 
+
 #endif /* PLATFORM_DEF_H */