Mark GICV3, CCI and CCN boot time code as init

Mark the GICv3, CCI and CCN code only used in Bl31 initialization
with __init to be reclaimed once no longer needed.

Change-Id: I3d77f36758450d9d1d87ecc60bc1c63fe4082667
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>

drivers/arm/cci/cci.c

@@ -107,7 +107,8 @@ static int get_slave_ports(unsigned int part_num)
 }
 #endif /* ENABLE_ASSERTIONS */
 
-void cci_init(uintptr_t base, const int *map, unsigned int num_cci_masters)
+void __init cci_init(uintptr_t base, const int *map,
+				unsigned int num_cci_masters)
 {
 	assert(map != NULL);
 	assert(base != 0U);

drivers/arm/ccn/ccn.c

 /*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -167,7 +167,7 @@ static unsigned int ccn_get_rn_master_info(uintptr_t periphbase,
  * It compares this with the information provided by the platform to determine
  * the validity of the latter.
  ******************************************************************************/
-static void ccn_validate_plat_params(const ccn_desc_t *plat_desc)
+static void __init ccn_validate_plat_params(const ccn_desc_t *plat_desc)
 {
 	unsigned int master_id, num_rn_masters;
 	rn_info_t info = { {0} };
@@ -208,7 +208,7 @@ static void ccn_validate_plat_params(const ccn_desc_t *plat_desc)
  * simultaneous CCN operations at runtime (only BL31) to add and remove Request
  * nodes from coherency.
  ******************************************************************************/
-void ccn_init(const ccn_desc_t *plat_desc)
+void __init ccn_init(const ccn_desc_t *plat_desc)
 {
 #if ENABLE_ASSERTIONS
 	ccn_validate_plat_params(plat_desc);

drivers/arm/gic/v3/gicv3_main.c

@@ -55,7 +55,7 @@ static spinlock_t gic_lock;
  * This function initialises the ARM GICv3 driver in EL3 with provided platform
  * inputs.
  ******************************************************************************/
-void gicv3_driver_init(const gicv3_driver_data_t *plat_driver_data)
+void __init gicv3_driver_init(const gicv3_driver_data_t *plat_driver_data)
 {
 	unsigned int gic_version;
 
@@ -129,7 +129,7 @@ void gicv3_driver_init(const gicv3_driver_data_t *plat_driver_data)
  * This function initialises the GIC distributor interface based upon the data
  * provided by the platform while initialising the driver.
  ******************************************************************************/
-void gicv3_distif_init(void)
+void __init gicv3_distif_init(void)
 {
 	unsigned int bitmap = 0;
 

drivers/arm/smmu/smmu_v3.c

@@ -4,21 +4,22 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#include <cdefs.h>
 #include <mmio.h>
 #include <smmu_v3.h>
 #include <stdbool.h>
 
-static inline uint32_t smmuv3_read_s_idr1(uintptr_t base)
+static inline uint32_t __init smmuv3_read_s_idr1(uintptr_t base)
 {
 	return mmio_read_32(base + SMMU_S_IDR1);
 }
 
-static inline uint32_t smmuv3_read_s_init(uintptr_t base)
+static inline uint32_t __init smmuv3_read_s_init(uintptr_t base)
 {
 	return mmio_read_32(base + SMMU_S_INIT);
 }
 
-static inline void smmuv3_write_s_init(uintptr_t base, uint32_t value)
+static inline void __init smmuv3_write_s_init(uintptr_t base, uint32_t value)
 {
 	mmio_write_32(base + SMMU_S_INIT, value);
 }
@@ -34,7 +35,7 @@ static inline bool smmuv3_inval_pending(uintptr_t base)
  *
  * Returns 0 on success, and -1 on failure.
  */
-int smmuv3_init(uintptr_t smmu_base)
+int __init smmuv3_init(uintptr_t smmu_base)
 {
 	uint32_t idr1_reg;
 

plat/arm/common/arm_cci.c

 /*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -27,7 +27,7 @@ static const int cci_map[] = {
 /******************************************************************************
  * Helper function to initialize ARM CCI driver.
  *****************************************************************************/
-void plat_arm_interconnect_init(void)
+void __init plat_arm_interconnect_init(void)
 {
 	cci_init(PLAT_ARM_CCI_BASE, cci_map, ARRAY_SIZE(cci_map));
 }

plat/arm/common/arm_ccn.c

 /*
- * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -34,7 +34,7 @@ CASSERT(PLAT_ARM_CLUSTER_COUNT == ARRAY_SIZE(master_to_rn_id_map),
 /******************************************************************************
  * Helper function to initialize ARM CCN driver.
  *****************************************************************************/
-void plat_arm_interconnect_init(void)
+void __init plat_arm_interconnect_init(void)
 {
 	ccn_init(&arm_ccn_desc);
 }

plat/arm/common/arm_gicv3.c

@@ -68,7 +68,7 @@ static const gicv3_driver_data_t arm_gic_data __unused = {
 	.mpidr_to_core_pos = arm_gicv3_mpidr_hash
 };
 
-void plat_arm_gic_driver_init(void)
+void __init plat_arm_gic_driver_init(void)
 {
 	/*
 	 * The GICv3 driver is initialized in EL3 and does not need
@@ -85,7 +85,7 @@ void plat_arm_gic_driver_init(void)
 /******************************************************************************
  * ARM common helper to initialize the GIC. Only invoked by BL31
  *****************************************************************************/
-void plat_arm_gic_init(void)
+void __init plat_arm_gic_init(void)
 {
 	gicv3_distif_init();
 	gicv3_rdistif_init(plat_my_core_pos());