xref: /rk3399_ARM-atf/drivers/nxp/scmi/vendor/scmi_imx9.c (revision 480e8dd9df291cc0e31695983fa6ff235e1671cd)

/*
 * Copyright 2023-2025 NXP
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <assert.h>

#include <arch_helpers.h>
#include <common/debug.h>
#include <drivers/arm/css/scmi.h>
#include "scmi_imx9.h"
#include <scmi_private.h>

/*
 * API to set the SCMI AP core reset address and attributes
 */
int scmi_core_set_reset_addr(void *p, uint64_t reset_addr, uint32_t cpu_id,
			     uint32_t attr)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
			IMX9_SCMI_CORE_RESET_ADDR_SET_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_RESET_ADDR_SET_MSG_LEN;
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG4(mbx_mem->payload, cpu_id, attr,
			  reset_addr & 0xffffffff, reset_addr >> 32);

	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
	assert(mbx_mem->len == IMX9_SCMI_CORE_RESET_ADDR_SET_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;
}

int scmi_core_start(void *p, uint32_t cpu_id)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
			IMX9_SCMI_CORE_START_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_START_MSG_LEN;
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG1(mbx_mem->payload, cpu_id);

	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
	assert(mbx_mem->len == IMX9_SCMI_CORE_START_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;
}

int scmi_core_stop(void *p, uint32_t cpu_id)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
			IMX9_SCMI_CORE_STOP_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_STOP_MSG_LEN;
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG1(mbx_mem->payload, cpu_id);

	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
	assert(mbx_mem->len == IMX9_SCMI_CORE_STOP_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;
}

int scmi_core_set_sleep_mode(void *p, uint32_t cpu_id, uint32_t wakeup,
			     uint32_t mode)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
			IMX9_SCMI_CORE_SETSLEEPMODE_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_SETSLEEPMODE_MSG_LEN;
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG3(mbx_mem->payload, cpu_id, wakeup, mode);

	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
	assert(mbx_mem->len == IMX9_SCMI_CORE_SETSLEEPMODE_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;
}

int scmi_core_Irq_wake_set(void *p, uint32_t cpu_id, uint32_t mask_idx,
		uint32_t num_mask, uint32_t *mask)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
			IMX9_SCMI_CORE_SETIRQWAKESET_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_SETIRQWAKESET_MSG_LEN;
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG3(mbx_mem->payload, cpu_id, mask_idx, num_mask);

	for (unsigned int i = 0U; i < num_mask; i++) {
		mbx_mem->payload[3U + i] = mask[i];
	}

	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
	assert(mbx_mem->len == IMX9_SCMI_CORE_SETIRQWAKESET_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;
}

int scmi_core_nonIrq_wake_set(void *p, uint32_t cpu_id, uint32_t mask_idx,
		uint32_t num_mask, uint32_t mask)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;

	validate_scmi_channel(ch);
	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
			IMX9_SCMI_CORE_NONIRQWAKESET_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_NONIRQWAKESET_MSG_LEN;
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG4(mbx_mem->payload, cpu_id, mask_idx, num_mask, mask);

	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
	assert(mbx_mem->len == IMX9_SCMI_CORE_NONIRQWAKESET_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;
}

int scmi_core_lpm_mode_set(void *p, uint32_t cpu_id,
			   uint32_t num_configs,
			   struct scmi_lpm_config *cfg)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
			IMX9_SCMI_CORE_LPMMODESET_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_LPMMODESET_MSG_LEN +
		       (num_configs * sizeof(struct scmi_lpm_config));
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG2(mbx_mem->payload, cpu_id, num_configs);

	/* The lpm config starts from byte 2 in the payload memory */
	unsigned int j = 2U;

	for (unsigned int i = 0U; i < num_configs; i++) {
		mmio_write_32((uintptr_t)&mbx_mem->payload[j++],
			      cfg[i].power_domain);
		mmio_write_32((uintptr_t)&mbx_mem->payload[j++],
			      cfg[i].lpmsetting);
		mmio_write_32((uintptr_t)&mbx_mem->payload[j++],
			      cfg[i].retentionmask);
	}
	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
	assert(mbx_mem->len == IMX9_SCMI_CORE_LPMMODESET_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;
}

int scmi_per_lpm_mode_set(void *p, uint32_t cpu_id, uint32_t num_configs,
		struct scmi_per_lpm_config *cfg)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;
	struct scmi_per_lpm_config *tmp = cfg;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	do {
		mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
		mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
				IMX9_SCMI_PER_LPMMODESET_MSG, token);
		mbx_mem->len = IMX9_SCMI_PER_LPMMODESET_MSG_LEN +
			       (num_configs * sizeof(struct scmi_per_lpm_config));
		mbx_mem->flags = SCMI_FLAG_RESP_POLL;
		SCMI_PAYLOAD_ARG2(mbx_mem->payload, cpu_id, num_configs);

		/* The lpm config starts from byte 2 in the payload memory */
		unsigned int j = 2U;

		for (unsigned int i = 0U; i < num_configs; i++) {
			mmio_write_32((uintptr_t)&mbx_mem->payload[j++],
				      cfg[i].perId);
			mmio_write_32((uintptr_t)&mbx_mem->payload[j++],
				      cfg[i].lpmSetting);
		}
		scmi_send_sync_command(ch);

		/* Get the return values */
		SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
		assert(mbx_mem->len == IMX9_SCMI_PER_LPMMODESET_RESP_LEN);
		assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

		if (num_configs > MAX_PER_LPI_CONFIGS_PER_CMD) {
			num_configs -= MAX_PER_LPI_CONFIGS_PER_CMD;
			tmp += MAX_PER_LPI_CONFIGS_PER_CMD;
		} else {
			break;
		}
	} while (num_configs);

	scmi_put_channel(ch);

	return ret;
}

int scmi_perf_mode_set(void *p, uint32_t domain_id, uint32_t perf_level)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_PERF_PROTO_ID,
			IMX9_SCMI_CORE_PERFLEVELSET_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_PERFLEVELSET_MSG_LEN;
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG2(mbx_mem->payload, domain_id, perf_level);

	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL1(mbx_mem->payload, ret);
	assert(mbx_mem->len == IMX9_SCMI_CORE_PERFLEVELSET_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;

}

int scmi_core_info_get(void *p, uint32_t cpu_id, uint32_t *runmode,
		       uint32_t *sleepmode, uint64_t *vector)
{
	mailbox_mem_t *mbx_mem;
	unsigned int token = 0U;
	int ret;
	scmi_channel_t *ch = (scmi_channel_t *)p;
	uint32_t lo_addr, hi_addr;

	validate_scmi_channel(ch);

	scmi_get_channel(ch);

	mbx_mem = (mailbox_mem_t *)(ch->info->scmi_mbx_mem);
	mbx_mem->msg_header = SCMI_MSG_CREATE(IMX9_SCMI_CORE_PROTO_ID,
			IMX9_SCMI_CORE_GETINFO_MSG, token);
	mbx_mem->len = IMX9_SCMI_CORE_GETINFO_MSG_LEN;
	mbx_mem->flags = SCMI_FLAG_RESP_POLL;
	SCMI_PAYLOAD_ARG1(mbx_mem->payload, cpu_id);

	scmi_send_sync_command(ch);

	/* Get the return values */
	SCMI_PAYLOAD_RET_VAL5(mbx_mem->payload, ret, *runmode, *sleepmode,
			      lo_addr, hi_addr);
	*vector = lo_addr | (uint64_t)hi_addr << 32;
	assert(mbx_mem->len == IMX9_SCMI_CORE_START_RESP_LEN);
	assert(token == SCMI_MSG_GET_TOKEN(mbx_mem->msg_header));

	scmi_put_channel(ch);

	return ret;
}