feat(imx8ulp): add i.MX8ULP basic support

Add the basic support for i.MX8ULP.

The i.MX 8ULP family of processors features NXP’s advanced
implementation of the dual Arm Cortex-A35 cores alongside
an Arm Cortex-M33. This combined architecture enables the
device to run a rich operating system (such as Linux) on
the Cortex-A35 core and an RTOS (such as FreeRTOS) on the
Cortex-M33 core. It also includes a Cadence Tensilica Fusion
DSP for low-power audio and a HiFi4 DSP for advanced audio
and machine learning applications.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Change-Id: I12df622b95960bcdf7da52e4c66470a700690e36
diff --git a/plat/imx/imx8ulp/include/platform_def.h b/plat/imx/imx8ulp/include/platform_def.h
new file mode 100644
index 0000000..fc4bdaf
--- /dev/null
+++ b/plat/imx/imx8ulp/include/platform_def.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright 2021-2024 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLATFORM_DEF_H
+#define PLATFORM_DEF_H
+
+#include <lib/utils_def.h>
+
+#define PLATFORM_LINKER_FORMAT		"elf64-littleaarch64"
+#define PLATFORM_LINKER_ARCH		aarch64
+
+#define PLATFORM_STACK_SIZE		0x400
+#define CACHE_WRITEBACK_GRANULE		64
+
+#define PLAT_PRIMARY_CPU		0x0
+#define PLATFORM_MAX_CPU_PER_CLUSTER	2
+#define PLATFORM_CLUSTER_COUNT		1
+#define PLATFORM_CORE_COUNT		2
+#define PLATFORM_CLUSTER0_CORE_COUNT	2
+#define PLATFORM_CLUSTER1_CORE_COUNT	0
+
+#define IMX_PWR_LVL0			MPIDR_AFFLVL0
+#define IMX_PWR_LVL1			MPIDR_AFFLVL1
+#define IMX_PWR_LVL2			MPIDR_AFFLVL2
+
+#define PWR_DOMAIN_AT_MAX_LVL		U(1)
+#define PLAT_MAX_PWR_LVL		U(2)
+#define PLAT_MAX_OFF_STATE		U(4)
+#define PLAT_MAX_RET_STATE		U(2)
+
+#define PLAT_WAIT_RET_STATE		U(1)
+#define PLAT_STOP_OFF_STATE		U(3)
+
+#define BL31_BASE			0x20040000
+#define BL31_LIMIT			0x20070000
+
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ull << 32)
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ull << 32)
+
+#define MAX_XLAT_TABLES			8
+#define MAX_MMAP_REGIONS		9
+
+#define PLAT_GICD_BASE			U(0x2d400000)
+#define PLAT_GICR_BASE			U(0x2d440000)
+#define DEVICE0_BASE			U(0x20000000)
+#define DEVICE0_SIZE			U(0x10000000)
+#define DEVICE1_BASE			U(0x30000000)
+#define DEVICE1_SIZE			U(0x10000000)
+#define IMX_LPUART4_BASE		U(0x29390000)
+#define IMX_LPUART5_BASE		U(0x293a0000)
+#define IMX_LPUART_BASE			IMX_LPUART5_BASE
+#define IMX_BOOT_UART_CLK_IN_HZ		24000000
+#define IMX_CONSOLE_BAUDRATE		115200
+
+#define IMX_CGC1_BASE			U(0x292c0000)
+#define IMX_PCC3_BASE			U(0x292d0000)
+#define IMX_PCC4_BASE			U(0x29800000)
+#define IMX_SIM2_BASE			U(0x2da50000)
+#define IMX_CGC2_BASE			U(0x2da60000)
+#define IMX_PCC5_BASE			U(0x2da70000)
+#define IMX_CMC1_BASE			U(0x29240000)
+#define IMX_SIM1_BASE			U(0x29290000)
+#define IMX_WDOG3_BASE			U(0x292a0000)
+#define IMX_GPIOE_BASE			U(0x2D000000)
+#define IMX_GPIOD_BASE			U(0x2E200000)
+#define IMX_GPIOF_BASE			U(0x2D010000)
+
+#define SRAM0_BASE			U(0x2201F000)
+
+#define IMX_ROM_ENTRY			U(0x1000)
+#define COUNTER_FREQUENCY		1000000
+
+#define PLAT_NS_IMAGE_OFFSET		0x80200000
+
+#define BL31_NOBITS_BASE    0x20058000
+#define BL31_NOBITS_LIMIT   0x2006d000
+
+#define BL31_RWDATA_BASE    0x2006d000
+#define BL31_RWDATA_LIMIT   0x20070000
+
+/* system memory map define */
+#define DEVICE0_MAP	MAP_REGION_FLAT(DEVICE0_BASE, DEVICE0_SIZE, MT_DEVICE | MT_RW)
+#define DEVICE1_MAP	MAP_REGION_FLAT(DEVICE1_BASE, DEVICE1_SIZE, MT_DEVICE | MT_RW)
+ /* MU and FSB */
+#define ELE_MAP		MAP_REGION_FLAT(0x27010000, 0x20000, MT_DEVICE | MT_RW | MT_NS)
+#define SEC_SIM_MAP	MAP_REGION_FLAT(0x2802B000, 0x1000, MT_DEVICE | MT_RW | MT_NS) /* SEC SIM */
+/* For SCMI shared memory region */
+#define SRAM0_MAP	MAP_REGION_FLAT(SRAM0_BASE, 0x1000, MT_RW | MT_DEVICE)
+
+#endif /* PLATFORM_DEF_H */
diff --git a/plat/imx/imx8ulp/include/scmi.h b/plat/imx/imx8ulp/include/scmi.h
new file mode 100644
index 0000000..03e16f5
--- /dev/null
+++ b/plat/imx/imx8ulp/include/scmi.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright 2021-2024 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef IMX8_SCMI_H
+#define IMX8_SCMI_H
+
+#include <stdint.h>
+
+#define SCMI_SHMEM_CHANNEL_ERROR	BIT_32(1)
+#define SCMI_SHMEM_CHANNEL_FREE		BIT_32(0)
+
+#define SCMI_SHMEM_FLAG_INTR_ENABLED	BIT_32(0)
+
+enum scmi_std_protocol {
+	SCMI_PROTOCOL_BASE = 0x10,
+	SCMI_PROTOCOL_POWER_DOMAIN = 0x11,
+	SCMI_PROTOCOL_SYS_POWER = 0x12,
+	SCMI_PROTOCOL_PERF_DOMAIN = 0x13,
+	SCMI_PROTOCOL_CLK = 0x14,
+	SCMI_PROTOCOL_SENSOR = 0x15,
+	SCMI_PROTOCOL_RESET_DOMAIN = 0x16,
+};
+
+#define MSG_ID(m)	((m) & 0xff)
+#define MSG_TYPE(m)	(((m) >> 8) & 0x3)
+#define MSG_PRO_ID(m)	(((m) >> 10) & 0xff)
+#define MSG_TOKEN(m)	(((m) >> 18) & 0x3ff)
+
+enum {
+	SCMI_POWER_DOMAIN_PROTOCOL	= 0x11,
+	SCMI_SYS_PWR_DOMAIN_PROTOCOL	= 0x12,
+	SCMI_PER_DOMAIN_PROTOCOL	= 0x13,
+	SCMI_CLK_DOMAIN_PROTOCOL	= 0x14,
+	SCMI_SENSOR_PROTOCOL		= 0x15,
+};
+
+#define PROTOCOL_VERSION			0
+#define PROTOCOL_ATTRIBUTES			1
+#define PROTOCOL_MESSAGE_ATTRIBUTES		2
+#define BASE_DISCOVER_VENDOR			3
+#define BASE_DISCOVER_SUB_VENDOR		4
+#define BASE_DISCOVER_IMPLEMENTATION_VERSION	5
+#define BASE_DISCOVER_LIST_PROTOCOLS		6
+#define BASE_DISCOVER_AGENT			7
+#define BASE_NOTIFY_ERRORS			8
+#define BASE_SET_DEVICE_PERMISSIONS		9
+#define BASE_SET_PROTOCOL_PERMISSIONS		0xA
+#define BASE_RESET_AGENT_CONFIGURATION		0xB
+
+enum {
+	SCMI_RET_SUCCESS = 0,
+	SCMI_RET_NOT_SUPPORTED = -1,
+	SCMI_RET_INVALID_PARAMETERS = -2,
+	SCMI_RET_DENIED = -3,
+	SCMI_RET_NOT_FOUND = -4,
+	SCMI_RET_OUT_OF_RANGE = -5,
+	SCMI_RET_BUSY = -6,
+	SCMI_RET_COMMS_ERROR = -7,
+	SCMI_RET_GENERIC_ERROR = -8,
+	SCMI_RET_HARDWARE_ERROR = -9,
+	SCMI_RET_PROTOCOL_ERROR = -10,
+};
+
+#define POWER_DOMAIN_ATTRIBUTES			3
+#define POWER_DOMAIN_SUPPORT_NOTIFICATION	BIT(31)
+#define POWER_DOMAIN_SUPPORT_ASYNCHRONOUS	BIT(30)
+#define POWER_DOMAIN_SUPPORT_SYNCHRONOUS	BIT(29)
+
+#define POWER_STATE_SET			4
+#define POWER_STATE_GET			5
+#define POWER_STATE_NOTIFY		6
+#define	POWER_STATE_CHANGE_REQUESTED_NOTIFY	7
+
+int scmi_power_domain_handler(uint32_t msg_id, void *shmem);
+
+#define PERFORMANCE_DOMAIN_ATTRIBUTES		3
+#define PERFORMANCE_DESCRIBE_LEVELS		4
+#define PERFORMANCE_LIMITS_SET			5
+#define PERFORMANCE_LIMITS_GET			6
+#define PERFORMANCE_LEVEL_SET			7
+#define PERFORMANCE_LEVEL_GET			8
+#define PERFORMANCE_NOTIFY_LIMITS		9
+#define PERFORMANCE_NOTIFY_LEVEL		0xA
+#define PERFORMANCE_DESCRIBE_FAST_CHANNEL	0xB
+
+int scmi_perf_domain_handler(uint32_t msg_id, void *shmem);
+
+#define SENSOR_DESCRIPTION_GET			0x003
+#define SENSOR_CONFIG_SET			0x004
+#define SENSOR_TRIP_POINT_SET			0x005
+#define SENSOR_READING_GET			0x006
+
+int scmi_sensor_handler(uint32_t msg_id, void *shmem);
+
+#define SMC_SHMEM_BASE	0x2201f000
+
+#endif /* IMX8_SCMI_H */
diff --git a/plat/imx/imx8ulp/include/scmi_sensor.h b/plat/imx/imx8ulp/include/scmi_sensor.h
new file mode 100644
index 0000000..5dab898
--- /dev/null
+++ b/plat/imx/imx8ulp/include/scmi_sensor.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2015-2024, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Description:
+ *      System Control and Management Interface (SCMI) support.
+ */
+
+#ifndef INTERNAL_SCMI_SENSOR_H
+#define INTERNAL_SCMI_SENSOR_H
+
+#include <stdint.h>
+
+#define SCMI_PROTOCOL_VERSION_SENSOR UINT32_C(0x10000)
+
+/*
+ * PROTOCOL_ATTRIBUTES
+ */
+struct scmi_sensor_protocol_attributes_p2a {
+	int32_t status;
+	uint32_t attributes;
+	uint32_t sensor_reg_address_low;
+	uint32_t sensor_reg_address_high;
+	uint32_t sensor_reg_len;
+};
+
+/*
+ * SENSOR_READING_GET
+ */
+#define SCMI_SENSOR_PROTOCOL_READING_GET_ASYNC_FLAG_MASK    (1 << 0)
+
+struct scmi_sensor_protocol_reading_get_a2p {
+	uint32_t sensor_id;
+	uint32_t flags;
+};
+
+struct scmi_sensor_protocol_reading_get_p2a {
+	int32_t status;
+	uint32_t sensor_value_low;
+	uint32_t sensor_value_high;
+};
+
+/*
+ * SENSOR_DESCRIPTION_GET
+ */
+ #define SCMI_SENSOR_DESCS_MAX(MAILBOX_SIZE) \
+	((sizeof(struct scmi_sensor_protocol_description_get_p2a) < MAILBOX_SIZE) \
+	? ((MAILBOX_SIZE - \
+	   sizeof(struct scmi_sensor_protocol_description_get_p2a)) \
+	   / sizeof(struct scmi_sensor_desc)) \
+	: 0)
+
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_TYPE_POS              0
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_POS   11
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_MULTIPLIER_POS 22
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_INTERVAL_POS   27
+
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_TYPE_MASK \
+	(UINT32_C(0xFF) << SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_TYPE_POS)
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_MASK \
+	(UINT32_C(0x1F) << SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_POS)
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_MULTIPLIER_MASK \
+	(UINT32_C(0x1F) << \
+	SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_MULTIPLIER_POS)
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_INTERVAL_MASK \
+	(UINT32_C(0x1F) << SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_INTERVAL_POS)
+
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_MAX \
+	(int32_t)(SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_MASK >> 1)
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_MIN \
+	(-(SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_MAX + 1))
+
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_MULTIPLIER_MAX \
+	(int32_t)(SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_INTERVAL_MASK >> 1)
+#define SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_MULTIPLIER_MIN \
+	(-(SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_MULTIPLIER_MAX + 1))
+
+#define SCMI_SENSOR_DESC_ATTRIBUTES_HIGH(SENSOR_TYPE, UNIT_MULTIPLIER, \
+					 UPDATE_MULTIPLIER, UPDATE_INTERVAL) \
+	( \
+	(((SENSOR_TYPE) << \
+	   SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_TYPE_POS) & \
+	   SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_TYPE_MASK) | \
+	   (((UNIT_MULTIPLIER) << \
+	   SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_POS) & \
+	   SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UNIT_MULTIPLIER_MASK) | \
+	   (((UPDATE_MULTIPLIER) << \
+	   SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_MULTIPLIER_POS) & \
+	   SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_MULTIPLIER_MASK) | \
+	   (((UPDATE_INTERVAL) << \
+	   SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_INTERVAL_POS) & \
+	   SCMI_SENSOR_DESC_ATTRS_HIGH_SENSOR_UPDATE_INTERVAL_MASK) \
+	)
+
+#define SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_DESCS_POS              0
+#define SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_REMAINING_DESCS_POS   16
+
+#define SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_DESCS_MASK \
+	(UINT32_C(0xFFF) << SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_DESCS_POS)
+#define SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_REMAINING_DESCS_MASK \
+	(UINT32_C(0xFFFF) << SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_REMAINING_DESCS_POS)
+
+#define SCMI_SENSOR_NUM_SENSOR_FLAGS(NUM_DESCS, NUM_REMAINING_DESCS) \
+	( \
+	(((NUM_DESCS) << \
+	  SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_DESCS_POS) & \
+	  SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_DESCS_MASK) | \
+	  (((NUM_REMAINING_DESCS) << \
+	    SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_REMAINING_DESCS_POS) & \
+	    SCMI_SENSOR_NUM_SENSOR_FLAGS_NUM_REMAINING_DESCS_MASK) \
+	)
+
+#define SCMI_SENSOR_NAME_LEN    16
+
+struct scmi_sensor_desc {
+	uint32_t sensor_id;
+	uint32_t sensor_attributes_low;
+	uint32_t sensor_attributes_high;
+	char sensor_name[SCMI_SENSOR_NAME_LEN];
+};
+
+struct scmi_sensor_protocol_description_get_a2p {
+	uint32_t desc_index;
+};
+
+struct scmi_sensor_protocol_description_get_p2a {
+	int32_t status;
+	uint32_t num_sensor_flags;
+	struct scmi_sensor_desc sensor_desc[];
+};
+
+/* Event indices */
+enum scmi_sensor_api_idx {
+	SCMI_SENSOR_EVENT_IDX_REQUEST,
+	SCMI_SENSOR_EVENT_IDX_COUNT,
+};
+
+#endif /* INTERNAL_SCMI_SENSOR_H */