mediatek: mt8183: add MTK SPM driver

Add MTK SPM driver for suspend/resume scenario.
Signed-off-by: kenny liang <kenny.liang@mediatek.com>
Change-Id: I8207eea95914da9e63c62f3afc8329f3ccd9a22c

plat/mediatek/mt8183/bl31_plat_setup.c

@@ -23,6 +23,7 @@
 #include <plat_private.h>
 #include <platform_def.h>
 #include <scu.h>
+#include <spm.h>
 #include <drivers/ti/uart/uart_16550.h>
 
 static entry_point_info_t bl32_ep_info;
@@ -146,6 +147,7 @@ void bl31_platform_setup(void)
 #if SPMC_MODE == 1
 	spmc_init();
 #endif
+	spm_boot_init();
 }
 
 /*******************************************************************************

plat/mediatek/mt8183/drivers/pmic/pmic.c

@@ -7,6 +7,24 @@
 #include <pmic_wrap_init.h>
 #include <pmic.h>
 
+void bcpu_enable(uint32_t en)
+{
+	pwrap_write(PMIC_VPROC11_OP_EN, 0x1);
+	if (en)
+		pwrap_write(PMIC_VPROC11_CON0, 1);
+	else
+		pwrap_write(PMIC_VPROC11_CON0, 0);
+}
+
+void bcpu_sram_enable(uint32_t en)
+{
+	pwrap_write(PMIC_VSRAM_PROC11_OP_EN, 0x1);
+	if (en)
+		pwrap_write(PMIC_VSRAM_PROC11_CON0, 1);
+	else
+		pwrap_write(PMIC_VSRAM_PROC11_CON0, 0);
+}
+
 void wk_pmic_enable_sdn_delay(void)
 {
 	uint32_t con;

plat/mediatek/mt8183/drivers/pmic/pmic.h

@@ -10,7 +10,11 @@
 enum {
 	PMIC_TMA_KEY = 0x03a8,
 	PMIC_PWRHOLD = 0x0a08,
-	PMIC_PSEQ_ELR11 = 0x0a62
+	PMIC_PSEQ_ELR11 = 0x0a62,
+	PMIC_VPROC11_CON0 = 0x1388,
+	PMIC_VPROC11_OP_EN = 0x1390,
+	PMIC_VSRAM_PROC11_CON0 = 0x1b46,
+	PMIC_VSRAM_PROC11_OP_EN = 0x1b4e
 };
 
 enum {
@@ -18,6 +22,8 @@ enum {
 };
 
 /* external API */
+void bcpu_enable(uint32_t en);
+void bcpu_sram_enable(uint32_t en);
 void wk_pmic_enable_sdn_delay(void);
 void pmic_power_off(void);
 

plat/mediatek/mt8183/drivers/spm/spm.c

+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <lib/bakery_lock.h>
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <lib/mmio.h>
+#include <spm.h>
+#include <spm_pmic_wrap.h>
+
+DEFINE_BAKERY_LOCK(spm_lock);
+
+const char *wakeup_src_str[32] = {
+	[0] = "R12_PCM_TIMER",
+	[1] = "R12_SSPM_WDT_EVENT_B",
+	[2] = "R12_KP_IRQ_B",
+	[3] = "R12_APWDT_EVENT_B",
+	[4] = "R12_APXGPT1_EVENT_B",
+	[5] = "R12_CONN2AP_SPM_WAKEUP_B",
+	[6] = "R12_EINT_EVENT_B",
+	[7] = "R12_CONN_WDT_IRQ_B",
+	[8] = "R12_CCIF0_EVENT_B",
+	[9] = "R12_LOWBATTERY_IRQ_B",
+	[10] = "R12_SSPM_SPM_IRQ_B",
+	[11] = "R12_SCP_SPM_IRQ_B",
+	[12] = "R12_SCP_WDT_EVENT_B",
+	[13] = "R12_PCM_WDT_WAKEUP_B",
+	[14] = "R12_USB_CDSC_B ",
+	[15] = "R12_USB_POWERDWN_B",
+	[16] = "R12_SYS_TIMER_EVENT_B",
+	[17] = "R12_EINT_EVENT_SECURE_B",
+	[18] = "R12_CCIF1_EVENT_B",
+	[19] = "R12_UART0_IRQ_B",
+	[20] = "R12_AFE_IRQ_MCU_B",
+	[21] = "R12_THERM_CTRL_EVENT_B",
+	[22] = "R12_SYS_CIRQ_IRQ_B",
+	[23] = "R12_MD2AP_PEER_EVENT_B",
+	[24] = "R12_CSYSPWREQ_B",
+	[25] = "R12_MD1_WDT_B ",
+	[26] = "R12_CLDMA_EVENT_B",
+	[27] = "R12_SEJ_WDT_GPT_B",
+	[28] = "R12_ALL_SSPM_WAKEUP_B",
+	[29] = "R12_CPU_IRQ_B",
+	[30] = "R12_CPU_WFI_AND_B"
+};
+
+const char *spm_get_firmware_version(void)
+{
+	return "DYNAMIC_SPM_FW_VERSION";
+}
+
+void spm_lock_init(void)
+{
+	bakery_lock_init(&spm_lock);
+}
+
+void spm_lock_get(void)
+{
+	bakery_lock_get(&spm_lock);
+}
+
+void spm_lock_release(void)
+{
+	bakery_lock_release(&spm_lock);
+}
+
+void spm_set_bootaddr(unsigned long bootaddr)
+{
+	/* initialize core4~7 boot entry address */
+	mmio_write_32(SW2SPM_MAILBOX_3, bootaddr);
+}
+
+void spm_set_cpu_status(int cpu)
+{
+	if (cpu >= 0 && cpu < 4) {
+		mmio_write_32(ROOT_CPUTOP_ADDR, 0x10006204);
+		mmio_write_32(ROOT_CORE_ADDR, 0x10006208 + (cpu * 0x4));
+	} else if (cpu >= 4 && cpu < 8) {
+		mmio_write_32(ROOT_CPUTOP_ADDR, 0x10006218);
+		mmio_write_32(ROOT_CORE_ADDR, 0x1000621c + ((cpu - 4) * 0x4));
+	} else {
+		ERROR("%s: error cpu number %d\n", __func__, cpu);
+	}
+}
+
+void spm_set_power_control(const struct pwr_ctrl *pwrctrl)
+{
+	mmio_write_32(SPM_AP_STANDBY_CON,
+		      ((pwrctrl->wfi_op & 0x1) << 0) |
+		      ((pwrctrl->mp0_cputop_idle_mask & 0x1) << 1) |
+		      ((pwrctrl->mp1_cputop_idle_mask & 0x1) << 2) |
+		      ((pwrctrl->mcusys_idle_mask & 0x1) << 4) |
+		      ((pwrctrl->mm_mask_b & 0x3) << 16) |
+		      ((pwrctrl->md_ddr_en_0_dbc_en & 0x1) << 18) |
+		      ((pwrctrl->md_ddr_en_1_dbc_en & 0x1) << 19) |
+		      ((pwrctrl->md_mask_b & 0x3) << 20) |
+		      ((pwrctrl->sspm_mask_b & 0x1) << 22) |
+		      ((pwrctrl->scp_mask_b & 0x1) << 23) |
+		      ((pwrctrl->srcclkeni_mask_b & 0x1) << 24) |
+		      ((pwrctrl->md_apsrc_1_sel & 0x1) << 25) |
+		      ((pwrctrl->md_apsrc_0_sel & 0x1) << 26) |
+		      ((pwrctrl->conn_ddr_en_dbc_en & 0x1) << 27) |
+		      ((pwrctrl->conn_mask_b & 0x1) << 28) |
+		      ((pwrctrl->conn_apsrc_sel & 0x1) << 29));
+
+	mmio_write_32(SPM_SRC_REQ,
+		      ((pwrctrl->spm_apsrc_req & 0x1) << 0) |
+		      ((pwrctrl->spm_f26m_req & 0x1) << 1) |
+		      ((pwrctrl->spm_infra_req & 0x1) << 3) |
+		      ((pwrctrl->spm_vrf18_req & 0x1) << 4) |
+		      ((pwrctrl->spm_ddren_req & 0x1) << 7) |
+		      ((pwrctrl->spm_rsv_src_req & 0x7) << 8) |
+		      ((pwrctrl->spm_ddren_2_req & 0x1) << 11) |
+		      ((pwrctrl->cpu_md_dvfs_sop_force_on & 0x1) << 16));
+
+	mmio_write_32(SPM_SRC_MASK,
+		      ((pwrctrl->csyspwreq_mask & 0x1) << 0) |
+		      ((pwrctrl->ccif0_md_event_mask_b & 0x1) << 1) |
+		      ((pwrctrl->ccif0_ap_event_mask_b & 0x1) << 2) |
+		      ((pwrctrl->ccif1_md_event_mask_b & 0x1) << 3) |
+		      ((pwrctrl->ccif1_ap_event_mask_b & 0x1) << 4) |
+		      ((pwrctrl->ccif2_md_event_mask_b & 0x1) << 5) |
+		      ((pwrctrl->ccif2_ap_event_mask_b & 0x1) << 6) |
+		      ((pwrctrl->ccif3_md_event_mask_b & 0x1) << 7) |
+		      ((pwrctrl->ccif3_ap_event_mask_b & 0x1) << 8) |
+		      ((pwrctrl->md_srcclkena_0_infra_mask_b & 0x1) << 9) |
+		      ((pwrctrl->md_srcclkena_1_infra_mask_b & 0x1) << 10) |
+		      ((pwrctrl->conn_srcclkena_infra_mask_b & 0x1) << 11) |
+		      ((pwrctrl->ufs_infra_req_mask_b & 0x1) << 12) |
+		      ((pwrctrl->srcclkeni_infra_mask_b & 0x1) << 13) |
+		      ((pwrctrl->md_apsrc_req_0_infra_mask_b & 0x1) << 14) |
+		      ((pwrctrl->md_apsrc_req_1_infra_mask_b & 0x1) << 15) |
+		      ((pwrctrl->conn_apsrcreq_infra_mask_b & 0x1) << 16) |
+		      ((pwrctrl->ufs_srcclkena_mask_b & 0x1) << 17) |
+		      ((pwrctrl->md_vrf18_req_0_mask_b & 0x1) << 18) |
+		      ((pwrctrl->md_vrf18_req_1_mask_b & 0x1) << 19) |
+		      ((pwrctrl->ufs_vrf18_req_mask_b & 0x1) << 20) |
+		      ((pwrctrl->gce_vrf18_req_mask_b & 0x1) << 21) |
+		      ((pwrctrl->conn_infra_req_mask_b & 0x1) << 22) |
+		      ((pwrctrl->gce_apsrc_req_mask_b & 0x1) << 23) |
+		      ((pwrctrl->disp0_apsrc_req_mask_b & 0x1) << 24) |
+		      ((pwrctrl->disp1_apsrc_req_mask_b & 0x1) << 25) |
+		      ((pwrctrl->mfg_req_mask_b & 0x1) << 26) |
+		      ((pwrctrl->vdec_req_mask_b & 0x1) << 27));
+
+	mmio_write_32(SPM_SRC2_MASK,
+		      ((pwrctrl->md_ddr_en_0_mask_b & 0x1) << 0) |
+		      ((pwrctrl->md_ddr_en_1_mask_b & 0x1) << 1) |
+		      ((pwrctrl->conn_ddr_en_mask_b & 0x1) << 2) |
+		      ((pwrctrl->ddren_sspm_apsrc_req_mask_b & 0x1) << 3) |
+		      ((pwrctrl->ddren_scp_apsrc_req_mask_b & 0x1) << 4) |
+		      ((pwrctrl->disp0_ddren_mask_b & 0x1) << 5) |
+		      ((pwrctrl->disp1_ddren_mask_b & 0x1) << 6) |
+		      ((pwrctrl->gce_ddren_mask_b & 0x1) << 7) |
+		      ((pwrctrl->ddren_emi_self_refresh_ch0_mask_b & 0x1)
+		       << 8) |
+		      ((pwrctrl->ddren_emi_self_refresh_ch1_mask_b & 0x1)
+		       << 9));
+
+	mmio_write_32(SPM_WAKEUP_EVENT_MASK,
+		      ((pwrctrl->spm_wakeup_event_mask & 0xffffffff) << 0));
+
+	mmio_write_32(SPM_WAKEUP_EVENT_EXT_MASK,
+		      ((pwrctrl->spm_wakeup_event_ext_mask & 0xffffffff)
+		       << 0));
+
+	mmio_write_32(SPM_SRC3_MASK,
+		      ((pwrctrl->md_ddr_en_2_0_mask_b & 0x1) << 0) |
+		      ((pwrctrl->md_ddr_en_2_1_mask_b & 0x1) << 1) |
+		      ((pwrctrl->conn_ddr_en_2_mask_b & 0x1) << 2) |
+		      ((pwrctrl->ddren2_sspm_apsrc_req_mask_b & 0x1) << 3) |
+		      ((pwrctrl->ddren2_scp_apsrc_req_mask_b & 0x1) << 4) |
+		      ((pwrctrl->disp0_ddren2_mask_b & 0x1) << 5) |
+		      ((pwrctrl->disp1_ddren2_mask_b & 0x1) << 6) |
+		      ((pwrctrl->gce_ddren2_mask_b & 0x1) << 7) |
+		      ((pwrctrl->ddren2_emi_self_refresh_ch0_mask_b & 0x1)
+		       << 8) |
+		      ((pwrctrl->ddren2_emi_self_refresh_ch1_mask_b & 0x1)
+		       << 9));
+
+	mmio_write_32(MP0_CPU0_WFI_EN,
+		      ((pwrctrl->mp0_cpu0_wfi_en & 0x1) << 0));
+	mmio_write_32(MP0_CPU1_WFI_EN,
+		      ((pwrctrl->mp0_cpu1_wfi_en & 0x1) << 0));
+	mmio_write_32(MP0_CPU2_WFI_EN,
+		      ((pwrctrl->mp0_cpu2_wfi_en & 0x1) << 0));
+	mmio_write_32(MP0_CPU3_WFI_EN,
+		      ((pwrctrl->mp0_cpu3_wfi_en & 0x1) << 0));
+
+	mmio_write_32(MP1_CPU0_WFI_EN,
+		      ((pwrctrl->mp1_cpu0_wfi_en & 0x1) << 0));
+	mmio_write_32(MP1_CPU1_WFI_EN,
+		      ((pwrctrl->mp1_cpu1_wfi_en & 0x1) << 0));
+	mmio_write_32(MP1_CPU2_WFI_EN,
+		      ((pwrctrl->mp1_cpu2_wfi_en & 0x1) << 0));
+	mmio_write_32(MP1_CPU3_WFI_EN,
+		      ((pwrctrl->mp1_cpu3_wfi_en & 0x1) << 0));
+}
+
+void spm_disable_pcm_timer(void)
+{
+	mmio_clrsetbits_32(PCM_CON1, PCM_TIMER_EN_LSB, SPM_REGWR_CFG_KEY);
+}
+
+void spm_set_wakeup_event(const struct pwr_ctrl *pwrctrl)
+{
+	uint32_t val, mask, isr;
+
+	val = pwrctrl->timer_val ? pwrctrl->timer_val : PCM_TIMER_MAX;
+	mmio_write_32(PCM_TIMER_VAL, val);
+	mmio_setbits_32(PCM_CON1, SPM_REGWR_CFG_KEY | PCM_TIMER_EN_LSB);
+
+	mask = pwrctrl->wake_src;
+
+	if (pwrctrl->csyspwreq_mask)
+		mask &= ~WAKE_SRC_R12_CSYSPWREQ_B;
+
+	mmio_write_32(SPM_WAKEUP_EVENT_MASK, ~mask);
+
+	isr = mmio_read_32(SPM_IRQ_MASK) & SPM_TWAM_IRQ_MASK_LSB;
+	mmio_write_32(SPM_IRQ_MASK, isr | ISRM_RET_IRQ_AUX);
+}
+
+void spm_set_pcm_flags(const struct pwr_ctrl *pwrctrl)
+{
+	mmio_write_32(SPM_SW_FLAG, pwrctrl->pcm_flags);
+	mmio_write_32(SPM_SW_RSV_2, pwrctrl->pcm_flags1);
+}
+
+void spm_set_pcm_wdt(int en)
+{
+	if (en) {
+		mmio_clrsetbits_32(PCM_CON1, PCM_WDT_WAKE_MODE_LSB,
+				   SPM_REGWR_CFG_KEY);
+
+		if (mmio_read_32(PCM_TIMER_VAL) > PCM_TIMER_MAX)
+			mmio_write_32(PCM_TIMER_VAL, PCM_TIMER_MAX);
+		mmio_write_32(PCM_WDT_VAL,
+			      mmio_read_32(PCM_TIMER_VAL) + PCM_WDT_TIMEOUT);
+		mmio_setbits_32(PCM_CON1, SPM_REGWR_CFG_KEY | PCM_WDT_EN_LSB);
+	} else {
+		mmio_clrsetbits_32(PCM_CON1, PCM_WDT_EN_LSB,
+				   SPM_REGWR_CFG_KEY);
+	}
+}
+
+void spm_send_cpu_wakeup_event(void)
+{
+	mmio_write_32(PCM_REG_DATA_INI, 0);
+	mmio_write_32(SPM_CPU_WAKEUP_EVENT, 1);
+}
+
+void spm_get_wakeup_status(struct wake_status *wakesta)
+{
+	wakesta->assert_pc = mmio_read_32(PCM_REG_DATA_INI);
+	wakesta->r12 = mmio_read_32(SPM_SW_RSV_0);
+	wakesta->r12_ext = mmio_read_32(PCM_REG12_EXT_DATA);
+	wakesta->raw_sta = mmio_read_32(SPM_WAKEUP_STA);
+	wakesta->raw_ext_sta = mmio_read_32(SPM_WAKEUP_EXT_STA);
+	wakesta->wake_misc = mmio_read_32(SPM_BSI_D0_SR);
+	wakesta->timer_out = mmio_read_32(SPM_BSI_D1_SR);
+	wakesta->r13 = mmio_read_32(PCM_REG13_DATA);
+	wakesta->idle_sta = mmio_read_32(SUBSYS_IDLE_STA);
+	wakesta->req_sta = mmio_read_32(SRC_REQ_STA);
+	wakesta->sw_flag = mmio_read_32(SPM_SW_FLAG);
+	wakesta->sw_flag1 = mmio_read_32(SPM_SW_RSV_2);
+	wakesta->r15 = mmio_read_32(PCM_REG15_DATA);
+	wakesta->debug_flag = mmio_read_32(SPM_SW_DEBUG);
+	wakesta->debug_flag1 = mmio_read_32(WDT_LATCH_SPARE0_FIX);
+	wakesta->event_reg = mmio_read_32(SPM_BSI_D2_SR);
+	wakesta->isr = mmio_read_32(SPM_IRQ_STA);
+}
+
+void spm_clean_after_wakeup(void)
+{
+	mmio_write_32(SPM_SW_RSV_0,
+		      mmio_read_32(SPM_WAKEUP_STA) |
+		      mmio_read_32(SPM_SW_RSV_0));
+	mmio_write_32(SPM_CPU_WAKEUP_EVENT, 0);
+	mmio_write_32(SPM_WAKEUP_EVENT_MASK, ~0);
+	mmio_setbits_32(SPM_IRQ_MASK, ISRM_ALL_EXC_TWAM);
+	mmio_write_32(SPM_IRQ_STA, ISRC_ALL_EXC_TWAM);
+	mmio_write_32(SPM_SWINT_CLR, PCM_SW_INT_ALL);
+}
+
+void spm_output_wake_reason(struct wake_status *wakesta, const char *scenario)
+{
+	uint32_t i;
+
+	if (wakesta->assert_pc != 0) {
+		INFO("%s: PCM ASSERT AT %u, ULPOSC_CON = 0x%x\n",
+		     scenario, wakesta->assert_pc, mmio_read_32(ULPOSC_CON));
+		goto spm_debug_flags;
+	}
+
+	for (i = 0; i <= 31; i++) {
+		if (wakesta->r12 & (1U << i)) {
+			INFO("%s: wake up by %s, timer_out = %u\n",
+			     scenario, wakeup_src_str[i], wakesta->timer_out);
+			break;
+		}
+	}
+
+spm_debug_flags:
+	INFO("r15 = 0x%x, r13 = 0x%x, debug_flag = 0x%x 0x%x\n",
+	     wakesta->r15, wakesta->r13, wakesta->debug_flag,
+	     wakesta->debug_flag1);
+	INFO("sw_flag = 0x%x 0x%x, r12 = 0x%x, r12_ext = 0x%x\n",
+	     wakesta->sw_flag, wakesta->sw_flag1, wakesta->r12,
+	     wakesta->r12_ext);
+	INFO("idle_sta = 0x%x, req_sta =  0x%x, event_reg = 0x%x\n",
+	     wakesta->idle_sta, wakesta->req_sta, wakesta->event_reg);
+	INFO("isr = 0x%x, raw_sta = 0x%x, raw_ext_sta = 0x%x\n",
+	     wakesta->isr, wakesta->raw_sta, wakesta->raw_ext_sta);
+	INFO("wake_misc = 0x%x\n", wakesta->wake_misc);
+}
+
+void spm_boot_init(void)
+{
+	NOTICE("%s() start\n", __func__);
+
+	spm_lock_init();
+	mt_spm_pmic_wrap_set_phase(PMIC_WRAP_PHASE_ALLINONE);
+
+	NOTICE("%s() end\n", __func__);
+}

plat/mediatek/mt8183/drivers/spm/spm_pmic_wrap.c

+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+#include <platform_def.h>
+#include <spm.h>
+#include <spm_pmic_wrap.h>
+#include <lib/libc/string.h>
+
+#define SLEEP_REG_MD_SPM_DVFS_CMD20	(SLEEP_REG_MD_BASE + 0x010)
+#define SLEEP_REG_MD_SPM_DVFS_CMD21	(SLEEP_REG_MD_BASE + 0x014)
+#define SLEEP_REG_MD_SPM_DVFS_CMD22	(SLEEP_REG_MD_BASE + 0x018)
+#define SLEEP_REG_MD_SPM_DVFS_CMD23	(SLEEP_REG_MD_BASE + 0x01C)
+
+/* PMIC_WRAP -> PMIC MT6358 */
+#define VCORE_BASE_UV 50000
+#define VOLT_TO_PMIC_VAL(volt)  (((volt) - VCORE_BASE_UV + 625 - 1) / 625)
+#define PMIC_VAL_TO_VOLT(pmic)  (((pmic) * 625) + VCORE_BASE_UV)
+
+#define DEFAULT_VOLT_VSRAM      (100000)
+#define DEFAULT_VOLT_VCORE      (100000)
+#define NR_PMIC_WRAP_CMD	(NR_IDX_ALL)
+#define MAX_RETRY_COUNT		(100)
+#define SPM_DATA_SHIFT		(16)
+
+#define BUCK_VCORE_ELR0		0x14AA
+#define BUCK_VPROC12_CON0	0x1408
+#define BUCK_VPROC11_CON0	0x1388
+#define TOP_SPI_CON0		0x044C
+#define LDO_VSRAM_PROC12_CON0	0x1B88
+#define LDO_VSRAM_PROC11_CON0	0x1B46
+#define BUCK_VMODEM_ELR0	0x15A6
+
+struct pmic_wrap_cmd {
+	unsigned long cmd_addr;
+	unsigned long cmd_wdata;
+};
+
+struct pmic_wrap_setting {
+	enum pmic_wrap_phase_id phase;
+	struct pmic_wrap_cmd addr[NR_PMIC_WRAP_CMD];
+	struct {
+		struct {
+			unsigned long cmd_addr;
+			unsigned long cmd_wdata;
+		} _[NR_PMIC_WRAP_CMD];
+		const int nr_idx;
+	} set[NR_PMIC_WRAP_PHASE];
+};
+
+static struct pmic_wrap_setting pw = {
+	.phase = NR_PMIC_WRAP_PHASE,
+	.addr = {{0, 0} },
+	.set[PMIC_WRAP_PHASE_ALLINONE] = {
+		._[CMD_0]    = {BUCK_VCORE_ELR0, VOLT_TO_PMIC_VAL(70000),},
+		._[CMD_1]    = {BUCK_VCORE_ELR0, VOLT_TO_PMIC_VAL(80000),},
+		._[CMD_2]    = {BUCK_VPROC12_CON0, 0x3,},
+		._[CMD_3]    = {BUCK_VPROC12_CON0, 0x1,},
+		._[CMD_4]    = {BUCK_VPROC11_CON0, 0x3,},
+		._[CMD_5]    = {BUCK_VPROC11_CON0, 0x1,},
+		._[CMD_6]    = {TOP_SPI_CON0, 0x1,},
+		._[CMD_7]    = {TOP_SPI_CON0, 0x0,},
+		._[CMD_8]    = {BUCK_VPROC12_CON0, 0x0,},
+		._[CMD_9]    = {BUCK_VPROC12_CON0, 0x1,},
+		._[CMD_10]   = {BUCK_VPROC11_CON0, 0x0,},
+		._[CMD_11]   = {BUCK_VPROC11_CON0, 0x1,},
+		._[CMD_12]   = {LDO_VSRAM_PROC12_CON0, 0x0,},
+		._[CMD_13]   = {LDO_VSRAM_PROC12_CON0, 0x1,},
+		._[CMD_14]   = {LDO_VSRAM_PROC11_CON0, 0x0,},
+		._[CMD_15]   = {LDO_VSRAM_PROC11_CON0, 0x1,},
+		._[CMD_20]   = {BUCK_VMODEM_ELR0, VOLT_TO_PMIC_VAL(55000),},
+		._[CMD_21]   = {BUCK_VCORE_ELR0, VOLT_TO_PMIC_VAL(60000),},
+		._[CMD_22]   = {LDO_VSRAM_PROC11_CON0, 0x3,},
+		._[CMD_23]   = {LDO_VSRAM_PROC11_CON0, 0x1,},
+		.nr_idx = NR_IDX_ALL
+	}
+};
+
+void _mt_spm_pmic_table_init(void)
+{
+	struct pmic_wrap_cmd pwrap_cmd_default[NR_PMIC_WRAP_CMD] = {
+		{(uint32_t)SPM_DVFS_CMD0, (uint32_t)SPM_DVFS_CMD0,},
+		{(uint32_t)SPM_DVFS_CMD1, (uint32_t)SPM_DVFS_CMD1,},
+		{(uint32_t)SPM_DVFS_CMD2, (uint32_t)SPM_DVFS_CMD2,},
+		{(uint32_t)SPM_DVFS_CMD3, (uint32_t)SPM_DVFS_CMD3,},
+		{(uint32_t)SPM_DVFS_CMD4, (uint32_t)SPM_DVFS_CMD4,},
+		{(uint32_t)SPM_DVFS_CMD5, (uint32_t)SPM_DVFS_CMD5,},
+		{(uint32_t)SPM_DVFS_CMD6, (uint32_t)SPM_DVFS_CMD6,},
+		{(uint32_t)SPM_DVFS_CMD7, (uint32_t)SPM_DVFS_CMD7,},
+		{(uint32_t)SPM_DVFS_CMD8, (uint32_t)SPM_DVFS_CMD8,},
+		{(uint32_t)SPM_DVFS_CMD9, (uint32_t)SPM_DVFS_CMD9,},
+		{(uint32_t)SPM_DVFS_CMD10, (uint32_t)SPM_DVFS_CMD10,},
+		{(uint32_t)SPM_DVFS_CMD11, (uint32_t)SPM_DVFS_CMD11,},
+		{(uint32_t)SPM_DVFS_CMD12, (uint32_t)SPM_DVFS_CMD12,},
+		{(uint32_t)SPM_DVFS_CMD13, (uint32_t)SPM_DVFS_CMD13,},
+		{(uint32_t)SPM_DVFS_CMD14, (uint32_t)SPM_DVFS_CMD14,},
+		{(uint32_t)SPM_DVFS_CMD15, (uint32_t)SPM_DVFS_CMD15,},
+		{(uint32_t)SLEEP_REG_MD_SPM_DVFS_CMD20,
+		 (uint32_t)SLEEP_REG_MD_SPM_DVFS_CMD20,},
+		{(uint32_t)SLEEP_REG_MD_SPM_DVFS_CMD21,
+		 (uint32_t)SLEEP_REG_MD_SPM_DVFS_CMD21,},
+		{(uint32_t)SLEEP_REG_MD_SPM_DVFS_CMD22,
+		 (uint32_t)SLEEP_REG_MD_SPM_DVFS_CMD22,},
+		{(uint32_t)SLEEP_REG_MD_SPM_DVFS_CMD23,
+		 (uint32_t)SLEEP_REG_MD_SPM_DVFS_CMD23,}
+	};
+
+	memcpy(pw.addr, pwrap_cmd_default, sizeof(pwrap_cmd_default));
+}
+
+void mt_spm_pmic_wrap_set_phase(enum pmic_wrap_phase_id phase)
+{
+	uint32_t idx, addr, data;
+
+	if (phase >= NR_PMIC_WRAP_PHASE)
+		return;
+
+	if (pw.phase == phase)
+		return;
+
+	if (pw.addr[0].cmd_addr == 0)
+		_mt_spm_pmic_table_init();
+
+	pw.phase = phase;
+
+	mmio_write_32(POWERON_CONFIG_EN, SPM_REGWR_CFG_KEY |
+		      BCLK_CG_EN_LSB | MD_BCLK_CG_EN_LSB);
+	for (idx = 0; idx < pw.set[phase].nr_idx; idx++) {
+		addr = pw.set[phase]._[idx].cmd_addr << SPM_DATA_SHIFT;
+		data = pw.set[phase]._[idx].cmd_wdata;
+		mmio_write_32(pw.addr[idx].cmd_addr, addr | data);
+	}
+}
+
+void mt_spm_pmic_wrap_set_cmd(enum pmic_wrap_phase_id phase, uint32_t idx,
+			      uint32_t cmd_wdata)
+{
+	uint32_t addr;
+
+	if (phase >= NR_PMIC_WRAP_PHASE)
+		return;
+
+	if (idx >= pw.set[phase].nr_idx)
+		return;
+
+	pw.set[phase]._[idx].cmd_wdata = cmd_wdata;
+
+	mmio_write_32(POWERON_CONFIG_EN, SPM_REGWR_CFG_KEY |
+		      BCLK_CG_EN_LSB | MD_BCLK_CG_EN_LSB);
+	if (pw.phase == phase) {
+		addr = pw.set[phase]._[idx].cmd_addr << SPM_DATA_SHIFT;
+		mmio_write_32(pw.addr[idx].cmd_addr, addr | cmd_wdata);
+	}
+}
+
+uint64_t mt_spm_pmic_wrap_get_cmd(enum pmic_wrap_phase_id phase, uint32_t idx)
+{
+	if (phase >= NR_PMIC_WRAP_PHASE)
+		return 0;
+
+	if (idx >= pw.set[phase].nr_idx)
+		return 0;
+
+	return pw.set[phase]._[idx].cmd_wdata;
+}
+

plat/mediatek/mt8183/drivers/spm/spm_pmic_wrap.h

+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/****************************************************************
+ * Auto generated by DE, please DO NOT modify this file directly.
+ *****************************************************************/
+
+#ifndef SPM_PMIC_WRAP__H
+#define SPM_PMIC_WRAP__H
+
+enum pmic_wrap_phase_id {
+	PMIC_WRAP_PHASE_ALLINONE,
+	NR_PMIC_WRAP_PHASE
+};
+
+/* IDX mapping */
+enum {
+	CMD_0,        /* 0x0 *//* PMIC_WRAP_PHASE_ALLINONE */
+	CMD_1,        /* 0x1 */
+	CMD_2,        /* 0x2 */
+	CMD_3,        /* 0x3 */
+	CMD_4,        /* 0x4 */
+	CMD_5,        /* 0x5 */
+	CMD_6,        /* 0x6 */
+	CMD_7,        /* 0x7 */
+	CMD_8,        /* 0x8 */
+	CMD_9,        /* 0x9 */
+	CMD_10,       /* 0xA */
+	CMD_11,       /* 0xB */
+	CMD_12,       /* 0xC */
+	CMD_13,       /* 0xD */
+	CMD_14,       /* 0xE */
+	CMD_15,       /* 0xF */
+	CMD_20,       /* 0x14 */
+	CMD_21,       /* 0x15 */
+	CMD_22,       /* 0x16 */
+	CMD_23,       /* 0x17 */
+	NR_IDX_ALL
+};
+
+/* APIs */
+void mt_spm_pmic_wrap_set_phase(enum pmic_wrap_phase_id phase);
+void mt_spm_pmic_wrap_set_cmd(enum pmic_wrap_phase_id phase,
+			      uint32_t idx, uint32_t cmd_wdata);
+uint64_t mt_spm_pmic_wrap_get_cmd(enum pmic_wrap_phase_id phase, uint32_t idx);
+#endif /* SPM_PMIC_WRAP__H */
+

plat/mediatek/mt8183/drivers/spm/spm_suspend.c

+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <mt_gic_v3.h>
+#include <lib/mmio.h>
+#include <platform_def.h>
+#include <pmic.h>
+#include <spm.h>
+#include <uart.h>
+
+#define SPM_SYSCLK_SETTLE       99
+
+#define WAKE_SRC_FOR_SUSPEND \
+	(WAKE_SRC_R12_PCM_TIMER | \
+	 WAKE_SRC_R12_SSPM_WDT_EVENT_B | \
+	 WAKE_SRC_R12_KP_IRQ_B | \
+	 WAKE_SRC_R12_CONN2AP_SPM_WAKEUP_B | \
+	 WAKE_SRC_R12_EINT_EVENT_B | \
+	 WAKE_SRC_R12_CONN_WDT_IRQ_B | \
+	 WAKE_SRC_R12_CCIF0_EVENT_B | \
+	 WAKE_SRC_R12_SSPM_SPM_IRQ_B | \
+	 WAKE_SRC_R12_SCP_SPM_IRQ_B | \
+	 WAKE_SRC_R12_SCP_WDT_EVENT_B | \
+	 WAKE_SRC_R12_USB_CDSC_B | \
+	 WAKE_SRC_R12_USB_POWERDWN_B | \
+	 WAKE_SRC_R12_SYS_TIMER_EVENT_B | \
+	 WAKE_SRC_R12_EINT_EVENT_SECURE_B | \
+	 WAKE_SRC_R12_CCIF1_EVENT_B | \
+	 WAKE_SRC_R12_MD2AP_PEER_EVENT_B | \
+	 WAKE_SRC_R12_MD1_WDT_B | \
+	 WAKE_SRC_R12_CLDMA_EVENT_B | \
+	 WAKE_SRC_R12_SEJ_WDT_GPT_B)
+
+#define SLP_PCM_FLAGS \
+	(SPM_FLAG_DIS_VCORE_DVS	| SPM_FLAG_DIS_VCORE_DFS | \
+	 SPM_FLAG_DIS_ATF_ABORT | SPM_FLAG_DISABLE_MMSYS_DVFS | \
+	 SPM_FLAG_DIS_INFRA_PDN | SPM_FLAG_SUSPEND_OPTION)
+
+#define SLP_PCM_FLAGS1 \
+	(SPM_FLAG1_DISABLE_MCDSR)
+
+static const struct pwr_ctrl suspend_ctrl = {
+	.wake_src = WAKE_SRC_FOR_SUSPEND,
+	.pcm_flags = SLP_PCM_FLAGS,
+	.pcm_flags1 = SLP_PCM_FLAGS1,
+
+	/* SPM_AP_STANDBY_CON */
+	.wfi_op = 0x1,
+	.mp0_cputop_idle_mask = 0,
+	.mp1_cputop_idle_mask = 0,
+	.mcusys_idle_mask = 0,
+	.mm_mask_b = 0,
+	.md_ddr_en_0_dbc_en = 0x1,
+	.md_ddr_en_1_dbc_en = 0,
+	.md_mask_b = 0x1,
+	.sspm_mask_b = 0x1,
+	.scp_mask_b = 0x1,
+	.srcclkeni_mask_b = 0x1,
+	.md_apsrc_1_sel = 0,
+	.md_apsrc_0_sel = 0,
+	.conn_ddr_en_dbc_en = 0x1,
+	.conn_mask_b = 0x1,
+	.conn_apsrc_sel = 0,
+
+	/* SPM_SRC_REQ */
+	.spm_apsrc_req = 0,
+	.spm_f26m_req = 0,
+	.spm_infra_req = 0,
+	.spm_vrf18_req = 0,
+	.spm_ddren_req = 0,
+	.spm_rsv_src_req = 0,
+	.spm_ddren_2_req = 0,
+	.cpu_md_dvfs_sop_force_on = 0,
+
+	/* SPM_SRC_MASK */
+	.csyspwreq_mask = 0x1,
+	.ccif0_md_event_mask_b = 0x1,
+	.ccif0_ap_event_mask_b = 0x1,
+	.ccif1_md_event_mask_b = 0x1,
+	.ccif1_ap_event_mask_b = 0x1,
+	.ccif2_md_event_mask_b = 0x1,
+	.ccif2_ap_event_mask_b = 0x1,
+	.ccif3_md_event_mask_b = 0x1,
+	.ccif3_ap_event_mask_b = 0x1,
+	.md_srcclkena_0_infra_mask_b = 0x1,
+	.md_srcclkena_1_infra_mask_b = 0,
+	.conn_srcclkena_infra_mask_b = 0,
+	.ufs_infra_req_mask_b = 0,
+	.srcclkeni_infra_mask_b = 0,
+	.md_apsrc_req_0_infra_mask_b = 0x1,
+	.md_apsrc_req_1_infra_mask_b = 0x1,
+	.conn_apsrcreq_infra_mask_b = 0x1,
+	.ufs_srcclkena_mask_b = 0,
+	.md_vrf18_req_0_mask_b = 0,
+	.md_vrf18_req_1_mask_b = 0,
+	.ufs_vrf18_req_mask_b = 0,
+	.gce_vrf18_req_mask_b = 0,
+	.conn_infra_req_mask_b = 0x1,
+	.gce_apsrc_req_mask_b = 0,
+	.disp0_apsrc_req_mask_b = 0,
+	.disp1_apsrc_req_mask_b = 0,
+	.mfg_req_mask_b = 0,
+	.vdec_req_mask_b = 0,
+
+	/* SPM_SRC2_MASK */
+	.md_ddr_en_0_mask_b = 0x1,
+	.md_ddr_en_1_mask_b = 0,
+	.conn_ddr_en_mask_b = 0x1,
+	.ddren_sspm_apsrc_req_mask_b = 0x1,
+	.ddren_scp_apsrc_req_mask_b = 0x1,
+	.disp0_ddren_mask_b = 0x1,
+	.disp1_ddren_mask_b = 0x1,
+	.gce_ddren_mask_b = 0x1,
+	.ddren_emi_self_refresh_ch0_mask_b = 0,
+	.ddren_emi_self_refresh_ch1_mask_b = 0,
+
+	/* SPM_WAKEUP_EVENT_MASK */
+	.spm_wakeup_event_mask = 0xF1782218,
+
+	/* SPM_WAKEUP_EVENT_EXT_MASK */
+	.spm_wakeup_event_ext_mask = 0xFFFFFFFF,
+
+	/* SPM_SRC3_MASK */
+	.md_ddr_en_2_0_mask_b = 0x1,
+	.md_ddr_en_2_1_mask_b = 0,
+	.conn_ddr_en_2_mask_b = 0x1,
+	.ddren2_sspm_apsrc_req_mask_b = 0x1,
+	.ddren2_scp_apsrc_req_mask_b = 0x1,
+	.disp0_ddren2_mask_b = 0,
+	.disp1_ddren2_mask_b = 0,
+	.gce_ddren2_mask_b = 0,
+	.ddren2_emi_self_refresh_ch0_mask_b = 0,
+	.ddren2_emi_self_refresh_ch1_mask_b = 0,
+
+	.mp0_cpu0_wfi_en = 0x1,
+	.mp0_cpu1_wfi_en = 0x1,
+	.mp0_cpu2_wfi_en = 0x1,
+	.mp0_cpu3_wfi_en = 0x1,
+
+	.mp1_cpu0_wfi_en = 0x1,
+	.mp1_cpu1_wfi_en = 0x1,
+	.mp1_cpu2_wfi_en = 0x1,
+	.mp1_cpu3_wfi_en = 0x1
+};
+
+static uint32_t spm_set_sysclk_settle(void)
+{
+	mmio_write_32(SPM_CLK_SETTLE, SPM_SYSCLK_SETTLE);
+	return mmio_read_32(SPM_CLK_SETTLE);
+}
+
+void go_to_sleep_before_wfi(void)
+{
+	int cpu = MPIDR_AFFLVL0_VAL(read_mpidr());
+	uint32_t settle;
+
+	settle = spm_set_sysclk_settle();
+	spm_set_cpu_status(cpu);
+	spm_set_power_control(&suspend_ctrl);
+	spm_set_wakeup_event(&suspend_ctrl);
+	spm_set_pcm_flags(&suspend_ctrl);
+	spm_send_cpu_wakeup_event();
+	spm_set_pcm_wdt(0);
+	spm_disable_pcm_timer();
+
+	if (is_infra_pdn(suspend_ctrl.pcm_flags))
+		mt_uart_save();
+
+	if (!mt_console_uart_cg_status())
+		console_switch_state(CONSOLE_FLAG_BOOT);
+
+	INFO("cpu%d: \"%s\", wakesrc = 0x%x, pcm_con1 = 0x%x\n",
+	     cpu, spm_get_firmware_version(), suspend_ctrl.wake_src,
+	     mmio_read_32(PCM_CON1));
+	INFO("settle = %u, sec = %u, sw_flag = 0x%x 0x%x, src_req = 0x%x\n",
+	     settle, mmio_read_32(PCM_TIMER_VAL) / 32768,
+	     suspend_ctrl.pcm_flags, suspend_ctrl.pcm_flags1,
+	     mmio_read_32(SPM_SRC_REQ));
+
+	if (!mt_console_uart_cg_status())
+		console_switch_state(CONSOLE_FLAG_RUNTIME);
+}
+
+static void go_to_sleep_after_wfi(void)
+{
+	struct wake_status spm_wakesta;
+
+	if (is_infra_pdn(suspend_ctrl.pcm_flags))
+		mt_uart_restore();
+
+	spm_set_pcm_wdt(0);
+	spm_get_wakeup_status(&spm_wakesta);
+	spm_clean_after_wakeup();
+
+	if (!mt_console_uart_cg_status())
+		console_switch_state(CONSOLE_FLAG_BOOT);
+
+	spm_output_wake_reason(&spm_wakesta, "suspend");
+
+	if (!mt_console_uart_cg_status())
+		console_switch_state(CONSOLE_FLAG_RUNTIME);
+}
+
+static void spm_enable_armpll_l(void)
+{
+	/* power on */
+	mmio_setbits_32(ARMPLL_L_PWR_CON0, 0x1);
+
+	/* clear isolation */
+	mmio_clrbits_32(ARMPLL_L_PWR_CON0, 0x2);
+
+	/* enable pll */
+	mmio_setbits_32(ARMPLL_L_CON0, 0x1);
+
+	/* Add 20us delay for turning on PLL */
+	udelay(20);
+}
+
+static void spm_disable_armpll_l(void)
+{
+	/* disable pll */
+	mmio_clrbits_32(ARMPLL_L_CON0, 0x1);
+
+	/* isolation */
+	mmio_setbits_32(ARMPLL_L_PWR_CON0, 0x2);
+
+	/* power off */
+	mmio_clrbits_32(ARMPLL_L_PWR_CON0, 0x1);
+}
+
+void spm_system_suspend(void)
+{
+	spm_disable_armpll_l();
+	bcpu_enable(0);
+	bcpu_sram_enable(0);
+	spm_lock_get();
+	go_to_sleep_before_wfi();
+	spm_lock_release();
+}
+
+void spm_system_suspend_finish(void)
+{
+	spm_lock_get();
+	go_to_sleep_after_wfi();
+	spm_lock_release();
+	spm_enable_armpll_l();
+	bcpu_sram_enable(1);
+	bcpu_enable(1);
+}

plat/mediatek/mt8183/drivers/spm/spm_suspend.h

+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __SPM_SUSPEND_H__
+#define __SPM_SUSPEND_H__
+
+void spm_system_suspend(void);
+void spm_system_suspend_finish(void);
+
+#endif /* __SPM_SUSPEND_H__*/

plat/mediatek/mt8183/include/plat_debug.h

@@ -24,8 +24,6 @@
 #define BIT_CA15M_L2PARITY_EN		(1 << 1)
 #define BIT_CA15M_LASTPC_DIS		(1 << 8)
 
-#define MP1_CPUTOP_PWR_CON		0x10006218
-
 #define MCU_ALL_PWR_ON_CTRL		0x0c530b58
 #define PLAT_MTK_CIRCULAR_BUFFER_UNLOCK	0xefab4133
 #define PLAT_MTK_CIRCULAR_BUFFER_LOCK	0xefab4134

plat/mediatek/mt8183/include/platform_def.h

@@ -41,6 +41,7 @@
 #define APMIXEDSYS         (IO_PHYS + 0xC000)
 #define ARMPLL_LL_CON0     (APMIXEDSYS + 0x200)
 #define ARMPLL_L_CON0      (APMIXEDSYS + 0x210)
+#define ARMPLL_L_PWR_CON0  (APMIXEDSYS + 0x21c)
 #define MAINPLL_CON0       (APMIXEDSYS + 0x220)
 #define CCIPLL_CON0        (APMIXEDSYS + 0x290)
 
@@ -74,6 +75,7 @@
 #define MT_L2_WRITE_ACCESS_RATE  (MCUCFG_BASE + 0x604)
 #define MP0_CA7L_CACHE_CONFIG    (MCUCFG_BASE + 0x7f0)
 #define MP1_CA7L_CACHE_CONFIG    (MCUCFG_BASE + 0x7f4)
+#define EMI_WFIFO                (MCUCFG_BASE + 0x0b5c)
 
 /*******************************************************************************
  * GIC related constants

plat/mediatek/mt8183/plat_debug.c

@@ -9,6 +9,7 @@
 #include <lib/mmio.h>
 #include <plat_debug.h>
 #include <platform_def.h>
+#include <spm.h>
 
 void circular_buffer_setup(void)
 {

plat/mediatek/mt8183/plat_pm.c

@@ -25,6 +25,8 @@
 #include <plat_private.h>
 #include <power_tracer.h>
 #include <pmic.h>
+#include <spm.h>
+#include <spm_suspend.h>
 #include <rtc.h>
 
 #define MTK_LOCAL_STATE_OFF     2
@@ -147,6 +149,54 @@ static void __dead2 plat_mtk_system_reset(void)
 	panic();
 }
 
+static void plat_mtk_power_domain_suspend(const psci_power_state_t *state)
+{
+	uint64_t mpidr = read_mpidr();
+	int cpu = MPIDR_AFFLVL0_VAL(mpidr);
+	int cluster = MPIDR_AFFLVL1_VAL(mpidr);
+
+	spm_system_suspend();
+
+	/* init cpu reset arch as AARCH64 */
+	mcucfg_init_archstate(cluster, cpu, 1);
+	mcucfg_set_bootaddr(cluster, cpu, secure_entrypoint);
+	spm_set_bootaddr(secure_entrypoint);
+
+	/* Prevent interrupts from spuriously waking up this cpu */
+	mt_gic_cpuif_disable();
+	mt_gic_irq_save();
+
+	if (state->pwr_domain_state[MPIDR_AFFLVL2] == MTK_LOCAL_STATE_OFF) {
+		plat_mtk_cci_disable();
+		disable_scu(mpidr);
+	}
+}
+
+static void plat_mtk_power_domain_suspend_finish(const psci_power_state_t *state)
+{
+	uint64_t mpidr = read_mpidr();
+
+	mt_gic_init();
+	mt_gic_irq_restore();
+
+	if (state->pwr_domain_state[MPIDR_AFFLVL2] == MTK_LOCAL_STATE_OFF) {
+		enable_scu(mpidr);
+		plat_mtk_cci_enable();
+		plat_dcm_restore_cluster_on(mpidr);
+	}
+
+	mmio_write_32(EMI_WFIFO, 0xf);
+	spm_system_suspend_finish();
+}
+
+static void plat_mtk_get_sys_suspend_power_state(psci_power_state_t *req_state)
+{
+	assert(PLAT_MAX_PWR_LVL >= 2);
+
+	for (int i = MPIDR_AFFLVL0; i <= PLAT_MAX_PWR_LVL; i++)
+		req_state->pwr_domain_state[i] = MTK_LOCAL_STATE_OFF;
+}
+
 /*******************************************************************************
  * MTK_platform handler called when an affinity instance is about to be turned
  * on. The level and mpidr determine the affinity instance.
@@ -156,12 +206,12 @@ static const plat_psci_ops_t plat_plat_pm_ops = {
 	.pwr_domain_on			= plat_mtk_power_domain_on,
 	.pwr_domain_on_finish		= plat_mtk_power_domain_on_finish,
 	.pwr_domain_off			= plat_mtk_power_domain_off,
-	.pwr_domain_suspend		= NULL,
-	.pwr_domain_suspend_finish	= NULL,
+	.pwr_domain_suspend		= plat_mtk_power_domain_suspend,
+	.pwr_domain_suspend_finish	= plat_mtk_power_domain_suspend_finish,
 	.system_off			= plat_mtk_system_off,
 	.system_reset			= plat_mtk_system_reset,
 	.validate_power_state		= NULL,
-	.get_sys_suspend_power_state	= NULL,
+	.get_sys_suspend_power_state	= plat_mtk_get_sys_suspend_power_state,
 };
 
 int plat_setup_psci_ops(uintptr_t sec_entrypoint,

plat/mediatek/mt8183/platform.mk

@@ -12,6 +12,7 @@ PLAT_INCLUDES := -I${MTK_PLAT}/common/                            \
                  -I${MTK_PLAT_SOC}/drivers/spmc/                  \
                  -I${MTK_PLAT_SOC}/drivers/gpio/                  \
                  -I${MTK_PLAT_SOC}/drivers/pmic/                  \
+                 -I${MTK_PLAT_SOC}/drivers/spm/                   \
                  -I${MTK_PLAT_SOC}/drivers/rtc/                   \
                  -I${MTK_PLAT_SOC}/drivers/uart/                  \
                  -I${MTK_PLAT_SOC}/include/
@@ -47,6 +48,9 @@ BL31_SOURCES    += common/desc_image_load.c                              \
                    ${MTK_PLAT_SOC}/drivers/pmic/pmic.c                   \
                    ${MTK_PLAT_SOC}/drivers/rtc/rtc.c                     \
                    ${MTK_PLAT_SOC}/drivers/spmc/mtspmc.c                 \
+                   ${MTK_PLAT_SOC}/drivers/spm/spm.c                     \
+                   ${MTK_PLAT_SOC}/drivers/spm/spm_pmic_wrap.c           \
+                   ${MTK_PLAT_SOC}/drivers/spm/spm_suspend.c             \
                    ${MTK_PLAT_SOC}/drivers/gpio/mtgpio.c                 \
                    ${MTK_PLAT_SOC}/drivers/uart/uart.c                   \
                    ${MTK_PLAT_SOC}/plat_pm.c                             \