Switch AARCH32/AARCH64 to __aarch64__

NOTE: AARCH32/AARCH64 macros are now deprecated in favor of __aarch64__.

All common C compilers pre-define the same macros to signal which
architecture the code is being compiled for: __arm__ for AArch32 (or
earlier versions) and __aarch64__ for AArch64. There's no need for TF-A
to define its own custom macros for this. In order to unify code with
the export headers (which use __aarch64__ to avoid another dependency),
let's deprecate the AARCH32 and AARCH64 macros and switch the code base
over to the pre-defined standard macro. (Since it is somewhat
unintuitive that __arm__ only means AArch32, let's standardize on only
using __aarch64__.)

Change-Id: Ic77de4b052297d77f38fc95f95f65a8ee70cf200
Signed-off-by: Julius Werner <jwerner@chromium.org>
diff --git a/plat/hisilicon/hikey/hikey_bl2_setup.c b/plat/hisilicon/hikey/hikey_bl2_setup.c
index c57fea9..2f96efc 100644
--- a/plat/hisilicon/hikey/hikey_bl2_setup.c
+++ b/plat/hisilicon/hikey/hikey_bl2_setup.c
@@ -77,7 +77,7 @@
 /*******************************************************************************
  * Gets SPSR for BL33 entry
  ******************************************************************************/
-#ifndef AARCH32
+#ifdef __aarch64__
 uint32_t hikey_get_spsr_for_bl33_entry(void)
 {
 	unsigned int mode;
@@ -112,7 +112,7 @@
 			SPSR_E_LITTLE, DISABLE_ALL_EXCEPTIONS);
 	return spsr;
 }
-#endif /* AARCH32 */
+#endif /* __aarch64__ */
 
 int hikey_bl2_handle_post_image_load(unsigned int image_id)
 {
@@ -125,7 +125,7 @@
 	assert(bl_mem_params);
 
 	switch (image_id) {
-#ifdef AARCH64
+#ifdef __aarch64__
 	case BL32_IMAGE_ID:
 #ifdef SPD_opteed
 		pager_mem_params = get_bl_mem_params_node(BL32_EXTRA1_IMAGE_ID);
diff --git a/plat/hisilicon/hikey/include/hikey_layout.h b/plat/hisilicon/hikey/include/hikey_layout.h
index a87648e..4b8dc53 100644
--- a/plat/hisilicon/hikey/include/hikey_layout.h
+++ b/plat/hisilicon/hikey/include/hikey_layout.h
@@ -113,7 +113,7 @@
 #endif
 
 /* BL32 is mandatory in AArch32 */
-#ifndef AARCH32
+#ifdef __aarch64__
 #ifdef SPD_none
 #undef BL32_BASE
 #endif /* SPD_none */
diff --git a/plat/hisilicon/hikey960/hikey960_bl2_setup.c b/plat/hisilicon/hikey960/hikey960_bl2_setup.c
index 7102de8..fc9ddab 100644
--- a/plat/hisilicon/hikey960/hikey960_bl2_setup.c
+++ b/plat/hisilicon/hikey960/hikey960_bl2_setup.c
@@ -168,7 +168,7 @@
 /*******************************************************************************
  * Gets SPSR for BL33 entry
  ******************************************************************************/
-#ifndef AARCH32
+#ifdef __aarch64__
 uint32_t hikey960_get_spsr_for_bl33_entry(void)
 {
 	unsigned int mode;
@@ -203,7 +203,7 @@
 			SPSR_E_LITTLE, DISABLE_ALL_EXCEPTIONS);
 	return spsr;
 }
-#endif /* AARCH32 */
+#endif /* __aarch64__ */
 
 int hikey960_bl2_handle_post_image_load(unsigned int image_id)
 {
@@ -216,7 +216,7 @@
 	assert(bl_mem_params);
 
 	switch (image_id) {
-#ifdef AARCH64
+#ifdef __aarch64__
 	case BL32_IMAGE_ID:
 #ifdef SPD_opteed
 		pager_mem_params = get_bl_mem_params_node(BL32_EXTRA1_IMAGE_ID);
diff --git a/plat/hisilicon/hikey960/include/platform_def.h b/plat/hisilicon/hikey960/include/platform_def.h
index 7c3c102..f6edad6 100644
--- a/plat/hisilicon/hikey960/include/platform_def.h
+++ b/plat/hisilicon/hikey960/include/platform_def.h
@@ -95,7 +95,7 @@
 #endif
 
 /* BL32 is mandatory in AArch32 */
-#ifndef AARCH32
+#ifdef __aarch64__
 #ifdef SPD_none
 #undef BL32_BASE
 #endif /* SPD_none */
diff --git a/plat/hisilicon/poplar/bl2_plat_setup.c b/plat/hisilicon/poplar/bl2_plat_setup.c
index 11403b0..cc9d975 100644
--- a/plat/hisilicon/poplar/bl2_plat_setup.c
+++ b/plat/hisilicon/poplar/bl2_plat_setup.c
@@ -54,7 +54,7 @@
 /*******************************************************************************
  * Gets SPSR for BL33 entry
  ******************************************************************************/
-#ifndef AARCH32
+#ifdef __aarch64__
 uint32_t poplar_get_spsr_for_bl33_entry(void)
 {
 	unsigned long el_status;
@@ -93,7 +93,7 @@
 			SPSR_E_LITTLE, DISABLE_ALL_EXCEPTIONS);
 	return spsr;
 }
-#endif /* AARCH32 */
+#endif /* __aarch64__ */
 
 int poplar_bl2_handle_post_image_load(unsigned int image_id)
 {
@@ -107,7 +107,7 @@
 	assert(bl_mem_params);
 
 	switch (image_id) {
-#ifdef AARCH64
+#ifdef __aarch64__
 	case BL32_IMAGE_ID:
 #ifdef SPD_opteed
 		pager_mem_params = get_bl_mem_params_node(BL32_EXTRA1_IMAGE_ID);
diff --git a/plat/hisilicon/poplar/include/platform_def.h b/plat/hisilicon/poplar/include/platform_def.h
index 8f7a155..9783f8d 100644
--- a/plat/hisilicon/poplar/include/platform_def.h
+++ b/plat/hisilicon/poplar/include/platform_def.h
@@ -107,7 +107,7 @@
 #endif
 
 /* BL32 is mandatory in AArch32 */
-#ifndef AARCH32
+#ifdef __aarch64__
 #ifdef SPD_none
 #undef BL32_BASE
 #endif /* SPD_none */