Merge pull request #861 from soby-mathew/sm/aarch32_fixes

Misc AArch32 fixes

drivers/arm/ccn/ccn.c

 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -38,7 +38,7 @@
 #include "ccn_private.h"
 
 static const ccn_desc_t *ccn_plat_desc;
-#ifdef IMAGE_BL31
+#if defined(IMAGE_BL31) || (defined(AARCH32) && defined(IMAGE_BL32))
 DEFINE_BAKERY_LOCK(ccn_lock);
 #endif
 
@@ -285,7 +285,7 @@ static void ccn_snoop_dvm_do_op(unsigned long long rn_id_map,
 	assert(ccn_plat_desc);
 	assert(ccn_plat_desc->periphbase);
 
-#ifdef IMAGE_BL31
+#if defined(IMAGE_BL31) || (defined(AARCH32) && defined(IMAGE_BL32))
 	bakery_lock_get(&ccn_lock);
 #endif
 	start_region_id = region_id;
@@ -305,7 +305,7 @@ static void ccn_snoop_dvm_do_op(unsigned long long rn_id_map,
 						   rn_id_map);
 	}
 
-#ifdef IMAGE_BL31
+#if defined(IMAGE_BL31) || (defined(AARCH32) && defined(IMAGE_BL32))
 	bakery_lock_release(&ccn_lock);
 #endif
 }

include/plat/arm/common/plat_arm.h

@@ -64,7 +64,7 @@ void arm_setup_page_tables(uintptr_t total_base,
 #endif
 );
 
-#ifdef IMAGE_BL31
+#if defined(IMAGE_BL31) || (defined(AARCH32) && defined(IMAGE_BL32))
 /*
  * Use this macro to instantiate lock before it is used in below
  * arm_lock_xxx() macros
@@ -88,7 +88,7 @@ void arm_setup_page_tables(uintptr_t total_base,
 #define arm_lock_get()
 #define arm_lock_release()
 
-#endif /* IMAGE_BL31 */
+#endif /* defined(IMAGE_BL31) || (defined(AARCH32) && defined(IMAGE_BL32)) */
 
 #if ARM_RECOM_STATE_ID_ENC
 /*

lib/locks/bakery/bakery_lock_normal.c

 /*
- * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -178,8 +178,11 @@ void bakery_lock_get(bakery_lock_t *lock)
 	unsigned int their_bakery_data;
 
 	me = plat_my_core_pos();
-
+#ifdef AARCH32
+	is_cached = read_sctlr() & SCTLR_C_BIT;
+#else
 	is_cached = read_sctlr_el3() & SCTLR_C_BIT;
+#endif
 
 	/* Get a ticket */
 	my_ticket = bakery_get_ticket(lock, me, is_cached);
@@ -231,7 +234,11 @@ void bakery_lock_get(bakery_lock_t *lock)
 void bakery_lock_release(bakery_lock_t *lock)
 {
 	bakery_info_t *my_bakery_info;
+#ifdef AARCH32
+	unsigned int is_cached = read_sctlr() & SCTLR_C_BIT;
+#else
 	unsigned int is_cached = read_sctlr_el3() & SCTLR_C_BIT;
+#endif
 
 	my_bakery_info = get_bakery_info(plat_my_core_pos(), lock);
 

plat/common/aarch32/platform_mp_stack.S

 /*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -32,8 +32,8 @@
 #include <asm_macros.S>
 #include <platform_def.h>
 
-	.globl	plat_get_my_stack
-	.globl	plat_set_my_stack
+	.weak	plat_get_my_stack
+	.weak	plat_set_my_stack
 
 	/* -----------------------------------------------------
 	 * uintptr_t plat_get_my_stack (u_register_t mpidr)