Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

10 files changed, 732 insertions, 0 deletions

diff --git a/plat/amlogic/common/aarch64/aml_helpers.S b/plat/amlogic/common/aarch64/aml_helpers.S
new file mode 100644
index 0000000..159c7d1
--- /dev/null
+++ b/plat/amlogic/common/aarch64/aml_helpers.S
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <assert_macros.S>
+#include <platform_def.h>
+
+	.globl	plat_crash_console_flush
+	.globl	plat_crash_console_init
+	.globl	plat_crash_console_putc
+	.globl	platform_mem_init
+	.globl	plat_is_my_cpu_primary
+	.globl	plat_my_core_pos
+	.globl	plat_reset_handler
+	.globl	plat_calc_core_pos
+
+	/* -----------------------------------------------------
+	 * unsigned int plat_my_core_pos(void);
+	 * -----------------------------------------------------
+	 */
+func plat_my_core_pos
+	mrs	x0, mpidr_el1
+	b	plat_calc_core_pos
+endfunc plat_my_core_pos
+
+	/* -----------------------------------------------------
+	 *  unsigned int plat_calc_core_pos(u_register_t mpidr);
+	 * -----------------------------------------------------
+	 */
+func plat_calc_core_pos
+	and	x0, x0, #MPIDR_CPU_MASK
+	ret
+endfunc plat_calc_core_pos
+
+	/* -----------------------------------------------------
+	 * unsigned int plat_is_my_cpu_primary(void);
+	 * -----------------------------------------------------
+	 */
+func plat_is_my_cpu_primary
+	mrs	x0, mpidr_el1
+	and	x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
+	cmp	x0, #AML_PRIMARY_CPU
+	cset	w0, eq
+	ret
+endfunc plat_is_my_cpu_primary
+
+	/* ---------------------------------------------
+	 * void platform_mem_init(void);
+	 * ---------------------------------------------
+	 */
+func platform_mem_init
+	ret
+endfunc platform_mem_init
+
+	/* ---------------------------------------------
+	 * int plat_crash_console_init(void)
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_init
+	mov_imm	x0, AML_UART0_AO_BASE
+	mov_imm	x1, AML_UART0_AO_CLK_IN_HZ
+	mov_imm	x2, AML_UART_BAUDRATE
+	b	console_meson_init
+endfunc plat_crash_console_init
+
+	/* ---------------------------------------------
+	 * int plat_crash_console_putc(int c)
+	 * Clobber list : x1, x2
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_putc
+	mov_imm	x1, AML_UART0_AO_BASE
+	b	console_meson_core_putc
+endfunc plat_crash_console_putc
+
+	/* ---------------------------------------------
+	 * void plat_crash_console_flush()
+	 * Out : void.
+	 * Clobber list : x0, x1
+	 * ---------------------------------------------
+	 */
+func plat_crash_console_flush
+	mov_imm	x0, AML_UART0_AO_BASE
+	b	console_meson_core_flush
+endfunc plat_crash_console_flush
+
+	/* ---------------------------------------------
+	 * void plat_reset_handler(void);
+	 * ---------------------------------------------
+	 */
+func plat_reset_handler
+	ret
+endfunc plat_reset_handler
diff --git a/plat/amlogic/common/aml_console.c b/plat/amlogic/common/aml_console.c
new file mode 100644
index 0000000..e21d707
--- /dev/null
+++ b/plat/amlogic/common/aml_console.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2019, Carlo Caione <ccaione@baylibre.com>
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <meson_console.h>
+#include <platform_def.h>
+
+/*******************************************************************************
+ * Function that sets up the console
+ ******************************************************************************/
+static console_t aml_console;
+
+void aml_console_init(void)
+{
+	int rc = console_meson_register(AML_UART0_AO_BASE,
+					AML_UART0_AO_CLK_IN_HZ,
+					AML_UART_BAUDRATE,
+					&aml_console);
+	if (rc == 0) {
+		/*
+		 * The crash console doesn't use the multi console API, it uses
+		 * the core console functions directly. It is safe to call panic
+		 * and let it print debug information.
+		 */
+		panic();
+	}
+
+	console_set_scope(&aml_console,
+			  CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME);
+}
diff --git a/plat/amlogic/common/aml_efuse.c b/plat/amlogic/common/aml_efuse.c
new file mode 100644
index 0000000..00884eb
--- /dev/null
+++ b/plat/amlogic/common/aml_efuse.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdint.h>
+
+#include "aml_private.h"
+
+#define EFUSE_BASE	0x140
+#define EFUSE_SIZE	0xC0
+
+uint64_t aml_efuse_read(void *dst, uint32_t offset, uint32_t size)
+{
+	if ((uint64_t)(offset + size) > (uint64_t)EFUSE_SIZE)
+		return 0;
+
+	return aml_scpi_efuse_read(dst, offset + EFUSE_BASE, size);
+}
+
+uint64_t aml_efuse_user_max(void)
+{
+	return EFUSE_SIZE;
+}
diff --git a/plat/amlogic/common/aml_mhu.c b/plat/amlogic/common/aml_mhu.c
new file mode 100644
index 0000000..001686a
--- /dev/null
+++ b/plat/amlogic/common/aml_mhu.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <lib/bakery_lock.h>
+#include <lib/mmio.h>
+#include <platform_def.h>
+
+static DEFINE_BAKERY_LOCK(mhu_lock);
+
+void aml_mhu_secure_message_start(void)
+{
+	bakery_lock_get(&mhu_lock);
+
+	while (mmio_read_32(AML_HIU_MAILBOX_STAT_3) != 0)
+		;
+}
+
+void aml_mhu_secure_message_send(uint32_t msg)
+{
+	mmio_write_32(AML_HIU_MAILBOX_SET_3, msg);
+
+	while (mmio_read_32(AML_HIU_MAILBOX_STAT_3) != 0)
+		;
+}
+
+uint32_t aml_mhu_secure_message_wait(void)
+{
+	uint32_t val;
+
+	do {
+		val = mmio_read_32(AML_HIU_MAILBOX_STAT_0);
+	} while (val == 0);
+
+	return val;
+}
+
+void aml_mhu_secure_message_end(void)
+{
+	mmio_write_32(AML_HIU_MAILBOX_CLR_0, 0xFFFFFFFF);
+
+	bakery_lock_release(&mhu_lock);
+}
+
+void aml_mhu_secure_init(void)
+{
+	bakery_lock_init(&mhu_lock);
+
+	mmio_write_32(AML_HIU_MAILBOX_CLR_3, 0xFFFFFFFF);
+}
diff --git a/plat/amlogic/common/aml_scpi.c b/plat/amlogic/common/aml_scpi.c
new file mode 100644
index 0000000..c8a6772
--- /dev/null
+++ b/plat/amlogic/common/aml_scpi.c
@@ -0,0 +1,234 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <crypto/sha_dma.h>
+#include <lib/mmio.h>
+#include <plat/common/platform.h>
+#include <platform_def.h>
+#include <string.h>
+
+#include "aml_private.h"
+
+#define SIZE_SHIFT	20
+#define SIZE_MASK	0x1FF
+#define SIZE_FWBLK	0x200UL
+
+/*
+ * Note: The Amlogic SCP firmware uses the legacy SCPI protocol.
+ */
+#define SCPI_CMD_SET_CSS_POWER_STATE	0x04
+#define SCPI_CMD_SET_SYS_POWER_STATE	0x08
+
+#define SCPI_CMD_JTAG_SET_STATE		0xC0
+#define SCPI_CMD_EFUSE_READ		0xC2
+#define SCPI_CMD_CHIP_ID		0xC6
+
+#define SCPI_CMD_COPY_FW 0xd4
+#define SCPI_CMD_SET_FW_ADDR 0xd3
+#define SCPI_CMD_FW_SIZE 0xd2
+
+static inline uint32_t aml_scpi_cmd(uint32_t command, uint32_t size)
+{
+	return command | (size << SIZE_SHIFT);
+}
+
+static void aml_scpi_secure_message_send(uint32_t command, uint32_t size)
+{
+	aml_mhu_secure_message_send(aml_scpi_cmd(command, size));
+}
+
+static uint32_t aml_scpi_secure_message_receive(void **message_out, size_t *size_out)
+{
+	uint32_t response = aml_mhu_secure_message_wait();
+
+	size_t size = (response >> SIZE_SHIFT) & SIZE_MASK;
+
+	response &= ~(SIZE_MASK << SIZE_SHIFT);
+
+	if (size_out != NULL)
+		*size_out = size;
+
+	if (message_out != NULL)
+		*message_out = (void *)AML_MHU_SECURE_SCP_TO_AP_PAYLOAD;
+
+	return response;
+}
+
+void aml_scpi_set_css_power_state(u_register_t mpidr, uint32_t cpu_state,
+			      uint32_t cluster_state, uint32_t css_state)
+{
+	uint32_t state = (mpidr & 0x0F) | /* CPU ID */
+			 ((mpidr & 0xF00) >> 4) | /* Cluster ID */
+			 (cpu_state << 8) |
+			 (cluster_state << 12) |
+			 (css_state << 16);
+
+	aml_mhu_secure_message_start();
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD, state);
+	aml_mhu_secure_message_send(aml_scpi_cmd(SCPI_CMD_SET_CSS_POWER_STATE, 4));
+	aml_mhu_secure_message_wait();
+	aml_mhu_secure_message_end();
+}
+
+uint32_t aml_scpi_sys_power_state(uint64_t system_state)
+{
+	uint32_t *response;
+	size_t size;
+
+	aml_mhu_secure_message_start();
+	mmio_write_8(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD, system_state);
+	aml_mhu_secure_message_send(aml_scpi_cmd(SCPI_CMD_SET_SYS_POWER_STATE, 1));
+	aml_scpi_secure_message_receive((void *)&response, &size);
+	aml_mhu_secure_message_end();
+
+	return *response;
+}
+
+void aml_scpi_jtag_set_state(uint32_t state, uint8_t select)
+{
+	assert(state <= AML_JTAG_STATE_OFF);
+
+	if (select > AML_JTAG_A53_EE) {
+		WARN("BL31: Invalid JTAG select (0x%x).\n", select);
+		return;
+	}
+
+	aml_mhu_secure_message_start();
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD,
+		      (state << 8) | (uint32_t)select);
+	aml_mhu_secure_message_send(aml_scpi_cmd(SCPI_CMD_JTAG_SET_STATE, 4));
+	aml_mhu_secure_message_wait();
+	aml_mhu_secure_message_end();
+}
+
+uint32_t aml_scpi_efuse_read(void *dst, uint32_t base, uint32_t size)
+{
+	uint32_t *response;
+	size_t resp_size;
+
+	if (size > 0x1FC)
+		return 0;
+
+	aml_mhu_secure_message_start();
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD, base);
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD + 4, size);
+	aml_mhu_secure_message_send(aml_scpi_cmd(SCPI_CMD_EFUSE_READ, 8));
+	aml_scpi_secure_message_receive((void *)&response, &resp_size);
+	aml_mhu_secure_message_end();
+
+	/*
+	 * response[0] is the size of the response message.
+	 * response[1 ... N] are the contents.
+	 */
+	if (*response != 0)
+		memcpy(dst, response + 1, *response);
+
+	return *response;
+}
+
+void aml_scpi_unknown_thermal(uint32_t arg0, uint32_t arg1,
+			      uint32_t arg2, uint32_t arg3)
+{
+	aml_mhu_secure_message_start();
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD + 0x0, arg0);
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD + 0x4, arg1);
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD + 0x8, arg2);
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD + 0xC, arg3);
+	aml_mhu_secure_message_send(aml_scpi_cmd(0xC3, 16));
+	aml_mhu_secure_message_wait();
+	aml_mhu_secure_message_end();
+}
+
+uint32_t aml_scpi_get_chip_id(uint8_t *obuff, uint32_t osize)
+{
+	uint32_t *response;
+	size_t resp_size;
+
+	if ((osize != 16) && (osize != 12))
+		return 0;
+
+	aml_mhu_secure_message_start();
+	aml_mhu_secure_message_send(aml_scpi_cmd(SCPI_CMD_CHIP_ID, osize));
+	aml_scpi_secure_message_receive((void *)&response, &resp_size);
+	aml_mhu_secure_message_end();
+
+	if (!((resp_size == 16) && (osize == 16)) &&
+	    !((resp_size == 0) && (osize == 12)))
+		return 0;
+
+	memcpy((void *)obuff, (const void *)response, osize);
+
+	return osize;
+}
+
+static inline void aml_scpi_copy_scp_data(uint8_t *data, size_t len)
+{
+	void *dst = (void *)AML_MHU_SECURE_AP_TO_SCP_PAYLOAD;
+	size_t sz;
+
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD, len);
+	aml_scpi_secure_message_send(SCPI_CMD_FW_SIZE, len);
+	aml_mhu_secure_message_wait();
+
+	for (sz = 0; sz < len; sz += SIZE_FWBLK) {
+		memcpy(dst, data + sz, MIN(SIZE_FWBLK, len - sz));
+		aml_mhu_secure_message_send(SCPI_CMD_COPY_FW);
+	}
+}
+
+static inline void aml_scpi_set_scp_addr(uint64_t addr, size_t len)
+{
+	volatile uint64_t *dst = (uint64_t *)AML_MHU_SECURE_AP_TO_SCP_PAYLOAD;
+
+	/*
+	 * It is ok as AML_MHU_SECURE_AP_TO_SCP_PAYLOAD is mapped as
+	 * non cachable
+	 */
+	*dst = addr;
+	aml_scpi_secure_message_send(SCPI_CMD_SET_FW_ADDR, sizeof(addr));
+	aml_mhu_secure_message_wait();
+
+	mmio_write_32(AML_MHU_SECURE_AP_TO_SCP_PAYLOAD, len);
+	aml_scpi_secure_message_send(SCPI_CMD_FW_SIZE, len);
+	aml_mhu_secure_message_wait();
+}
+
+static inline void aml_scpi_send_fw_hash(uint8_t hash[], size_t len)
+{
+	void *dst = (void *)AML_MHU_SECURE_AP_TO_SCP_PAYLOAD;
+
+	memcpy(dst, hash, len);
+	aml_mhu_secure_message_send(0xd0);
+	aml_mhu_secure_message_send(0xd1);
+	aml_mhu_secure_message_send(0xd5);
+	aml_mhu_secure_message_end();
+}
+
+/**
+ * Upload a FW to SCP.
+ *
+ * @param addr: firmware data address
+ * @param size: size of firmware
+ * @param send: If set, actually copy the firmware in SCP memory otherwise only
+ *  send the firmware address.
+ */
+void aml_scpi_upload_scp_fw(uintptr_t addr, size_t size, int send)
+{
+	struct asd_ctx ctx;
+
+	asd_sha_init(&ctx, ASM_SHA256);
+	asd_sha_update(&ctx, (void *)addr, size);
+	asd_sha_finalize(&ctx);
+
+	aml_mhu_secure_message_start();
+	if (send == 0)
+		aml_scpi_set_scp_addr(addr, size);
+	else
+		aml_scpi_copy_scp_data((void *)addr, size);
+
+	aml_scpi_send_fw_hash(ctx.digest, sizeof(ctx.digest));
+}
diff --git a/plat/amlogic/common/aml_sip_svc.c b/plat/amlogic/common/aml_sip_svc.c
new file mode 100644
index 0000000..ab4c015
--- /dev/null
+++ b/plat/amlogic/common/aml_sip_svc.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <common/runtime_svc.h>
+#include <lib/mmio.h>
+#include <platform_def.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "aml_private.h"
+
+struct aml_cpu_info {
+	uint32_t version;
+	uint8_t chip_id[16];
+};
+
+static int aml_sip_get_chip_id(uint64_t version)
+{
+	struct aml_cpu_info *info = (void *)AML_SHARE_MEM_OUTPUT_BASE;
+	uint32_t size;
+
+	if (version > 2)
+		return -1;
+
+	memset(info, 0, sizeof(struct aml_cpu_info));
+
+	if (version == 2) {
+		info->version = 2;
+		size = 16;
+	} else {
+		info->version = 1;
+		size = 12;
+	}
+
+	if (aml_scpi_get_chip_id(info->chip_id, size) == 0)
+		return -1;
+
+	return 0;
+}
+
+/*******************************************************************************
+ * This function is responsible for handling all SiP calls
+ ******************************************************************************/
+static uintptr_t aml_sip_handler(uint32_t smc_fid,
+				  u_register_t x1, u_register_t x2,
+				  u_register_t x3, u_register_t x4,
+				  void *cookie, void *handle,
+				  u_register_t flags)
+{
+	switch (smc_fid) {
+
+	case AML_SM_GET_SHARE_MEM_INPUT_BASE:
+		SMC_RET1(handle, AML_SHARE_MEM_INPUT_BASE);
+
+	case AML_SM_GET_SHARE_MEM_OUTPUT_BASE:
+		SMC_RET1(handle, AML_SHARE_MEM_OUTPUT_BASE);
+
+	case AML_SM_EFUSE_READ:
+	{
+		void *dst = (void *)AML_SHARE_MEM_OUTPUT_BASE;
+		uint64_t ret = aml_efuse_read(dst, (uint32_t)x1, x2);
+
+		SMC_RET1(handle, ret);
+	}
+	case AML_SM_EFUSE_USER_MAX:
+		SMC_RET1(handle,  aml_efuse_user_max());
+
+	case AML_SM_JTAG_ON:
+		aml_scpi_jtag_set_state(AML_JTAG_STATE_ON, x1);
+		SMC_RET1(handle, 0);
+
+	case AML_SM_JTAG_OFF:
+		aml_scpi_jtag_set_state(AML_JTAG_STATE_OFF, x1);
+		SMC_RET1(handle, 0);
+
+	case AML_SM_GET_CHIP_ID:
+		SMC_RET1(handle, aml_sip_get_chip_id(x1));
+
+	default:
+		ERROR("BL31: Unhandled SIP SMC: 0x%08x\n", smc_fid);
+		break;
+	}
+
+	SMC_RET1(handle, SMC_UNK);
+}
+
+DECLARE_RT_SVC(
+	aml_sip_handler,
+
+	OEN_SIP_START,
+	OEN_SIP_END,
+	SMC_TYPE_FAST,
+	NULL,
+	aml_sip_handler
+);
diff --git a/plat/amlogic/common/aml_thermal.c b/plat/amlogic/common/aml_thermal.c
new file mode 100644
index 0000000..53ed103
--- /dev/null
+++ b/plat/amlogic/common/aml_thermal.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdint.h>
+
+#include "aml_private.h"
+
+static int32_t modules_initialized = -1;
+
+/*******************************************************************************
+ * Unknown commands related to something thermal-related
+ ******************************************************************************/
+void aml_thermal_unknown(void)
+{
+	uint16_t ret;
+
+	if (modules_initialized == -1) {
+		aml_scpi_efuse_read(&ret, 0, 2);
+		modules_initialized = ret;
+	}
+
+	aml_scpi_unknown_thermal(10, 2,  /* thermal */
+				 13, 1); /* thermalver */
+}
diff --git a/plat/amlogic/common/aml_topology.c b/plat/amlogic/common/aml_topology.c
new file mode 100644
index 0000000..0a04c11
--- /dev/null
+++ b/plat/amlogic/common/aml_topology.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <platform_def.h>
+#include <stdint.h>
+
+#include "aml_private.h"
+
+/* The power domain tree descriptor */
+static unsigned char power_domain_tree_desc[] = {
+	/* Number of root nodes */
+	PLATFORM_CLUSTER_COUNT,
+	/* Number of children for the first node */
+	PLATFORM_CLUSTER0_CORE_COUNT
+};
+
+/*******************************************************************************
+ * This function returns the ARM default topology tree information.
+ ******************************************************************************/
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+	return power_domain_tree_desc;
+}
+
+/*******************************************************************************
+ * This function implements a part of the critical interface between the psci
+ * generic layer and the platform that allows the former to query the platform
+ * to convert an MPIDR to a unique linear index. An error code (-1) is returned
+ * in case the MPIDR is invalid.
+ ******************************************************************************/
+int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+	unsigned int cluster_id, cpu_id;
+
+	mpidr &= MPIDR_AFFINITY_MASK;
+	if (mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK))
+		return -1;
+
+	cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
+	cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
+
+	if (cluster_id >= PLATFORM_CLUSTER_COUNT)
+		return -1;
+
+	if (cpu_id >= PLATFORM_MAX_CPUS_PER_CLUSTER)
+		return -1;
+
+	return plat_calc_core_pos(mpidr);
+}
diff --git a/plat/amlogic/common/include/aml_private.h b/plat/amlogic/common/include/aml_private.h
new file mode 100644
index 0000000..724f382
--- /dev/null
+++ b/plat/amlogic/common/include/aml_private.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef AML_PRIVATE_H
+#define AML_PRIVATE_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+/* Utility functions */
+unsigned int plat_calc_core_pos(u_register_t mpidr);
+void aml_console_init(void);
+void aml_setup_page_tables(void);
+
+/* MHU functions */
+void aml_mhu_secure_message_start(void);
+void aml_mhu_secure_message_send(uint32_t msg);
+uint32_t aml_mhu_secure_message_wait(void);
+void aml_mhu_secure_message_end(void);
+void aml_mhu_secure_init(void);
+
+/* SCPI functions */
+void aml_scpi_set_css_power_state(u_register_t mpidr, uint32_t cpu_state,
+				  uint32_t cluster_state, uint32_t css_state);
+uint32_t aml_scpi_sys_power_state(uint64_t system_state);
+void aml_scpi_jtag_set_state(uint32_t state, uint8_t select);
+uint32_t aml_scpi_efuse_read(void *dst, uint32_t base, uint32_t size);
+void aml_scpi_unknown_thermal(uint32_t arg0, uint32_t arg1,
+			      uint32_t arg2, uint32_t arg3);
+void aml_scpi_upload_scp_fw(uintptr_t addr, size_t size, int send);
+uint32_t aml_scpi_get_chip_id(uint8_t *obuff, uint32_t osize);
+
+/* Peripherals */
+void aml_thermal_unknown(void);
+uint64_t aml_efuse_read(void *dst, uint32_t offset, uint32_t size);
+uint64_t aml_efuse_user_max(void);
+
+#endif /* AML_PRIVATE_H */
diff --git a/plat/amlogic/common/include/plat_macros.S b/plat/amlogic/common/include/plat_macros.S
new file mode 100644
index 0000000..d620fcf
--- /dev/null
+++ b/plat/amlogic/common/include/plat_macros.S
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLAT_MACROS_S
+#define PLAT_MACROS_S
+
+#include <drivers/arm/gicv2.h>
+#include <platform_def.h>
+
+.section .rodata.gic_reg_name, "aS"
+
+gicc_regs:
+	.asciz "gicc_hppir", "gicc_ahppir", "gicc_ctlr", ""
+gicd_pend_reg:
+	.asciz "gicd_ispendr regs (Offsets 0x200 - 0x278)\n Offset:\t\t\tvalue\n"
+newline:
+	.asciz "\n"
+spacer:
+	.asciz ":\t\t0x"
+
+	/* ---------------------------------------------
+	 * The below required platform porting macro
+	 * prints out relevant GIC and CCI registers
+	 * whenever an unhandled exception is taken in
+	 * BL31.
+	 * Clobbers: x0 - x10, x16, x17, sp
+	 * ---------------------------------------------
+	 */
+	.macro plat_crash_print_regs
+
+	/* GICC registers */
+
+	mov_imm	x17, AML_GICC_BASE
+
+	adr	x6, gicc_regs
+	ldr	w8, [x17, #GICC_HPPIR]
+	ldr	w9, [x17, #GICC_AHPPIR]
+	ldr	w10, [x17, #GICC_CTLR]
+	bl	str_in_crash_buf_print
+
+	/* GICD registers */
+
+	mov_imm	x16, AML_GICD_BASE
+
+	add	x7, x16, #GICD_ISPENDR
+	adr	x4, gicd_pend_reg
+	bl	asm_print_str
+
+gicd_ispendr_loop:
+	sub	x4, x7, x16
+	cmp	x4, #0x280
+	b.eq	exit_print_gic_regs
+	bl	asm_print_hex
+
+	adr	x4, spacer
+	bl	asm_print_str
+
+	ldr	x4, [x7], #8
+	bl	asm_print_hex
+
+	adr	x4, newline
+	bl	asm_print_str
+	b	gicd_ispendr_loop
+exit_print_gic_regs:
+
+	.endm
+
+#endif /* PLAT_MACROS_S */