mediatek: mt8192: Add SPM suspend driver

Supports dram/mainpll/26m off when system suspend
Signed-off-by: Roger Lu <roger.lu@mediatek.com>
Change-Id: Id13a06d4132f00fb60066de75920ecac18306e32

plat/mediatek/mt8192/bl31_plat_setup.c

@@ -19,6 +19,7 @@
 #include <emi_mpu/emi_mpu.h>
 #include <gpio/mtgpio.h>
 #include <mt_gic_v3.h>
+#include <mt_spm.h>
 #include <mt_timer.h>
 #include <mtk_dcm.h>
 #include <plat_params.h>
@@ -100,6 +101,7 @@ void bl31_platform_setup(void)
 	plat_mt8192_gpio_init();
 	mt_systimer_init();
 	generic_delay_timer_init();
+	spm_boot_init();
 }
 
 /*******************************************************************************

plat/mediatek/mt8192/drivers/spm/build.mk

+#
+# Copyright (c) 2020, MediaTek Inc. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# Enable or disable spm feature
+MT_SPM_FEATURE_SUPPORT = yes
+
+# Enable or disable cirq restore
+MT_SPM_CIRQ_FEATURE_SUPPORT = yes
+
+# sspm notifier support
+MT_SPM_SSPM_NOTIFIER_SUPPORT = yes
+
+CUR_SPM_FOLDER = ${MTK_PLAT_SOC}/drivers/spm
+
+# spm common files
+PLAT_SPM_SOURCE_FILES_COMMON +=			\
+	${CUR_SPM_FOLDER}/mt_spm.c		\
+	${CUR_SPM_FOLDER}/mt_spm_conservation.c	\
+	${CUR_SPM_FOLDER}/mt_spm_internal.c	\
+	${CUR_SPM_FOLDER}/mt_spm_pmic_wrap.c
+
+# spm platform dependcy files
+PLAT_SPM_SOURCE_FILES +=					\
+	${CUR_SPM_FOLDER}/constraints/mt_spm_rc_bus26m.c	\
+	${CUR_SPM_FOLDER}/constraints/mt_spm_rc_cpu_buck_ldo.c	\
+	${CUR_SPM_FOLDER}/constraints/mt_spm_rc_dram.c		\
+	${CUR_SPM_FOLDER}/constraints/mt_spm_rc_syspll.c	\
+	${CUR_SPM_FOLDER}/mt_spm_cond.c				\
+	${CUR_SPM_FOLDER}/mt_spm_suspend.c			\
+	${CUR_SPM_FOLDER}/mt_spm_idle.c
+
+ifeq (${MT_SPM_FEATURE_SUPPORT}, no)
+PLAT_SPM_DEBUG_CFLAGS += -DATF_PLAT_SPM_UNSUPPORT
+BL31_MT_LPM_PLAT_SPM_SOURCE_FILES += ${PLAT_SPM_SOURCE_FILES_COMMON}
+else
+BL31_MT_LPM_PLAT_SPM_SOURCE_FILES +=	\
+	${PLAT_SPM_SOURCE_FILES_COMMON} \
+	${PLAT_SPM_SOURCE_FILES}
+endif
+
+ifeq (${MT_SPM_CIRQ_FEATURE_SUPPORT}, no)
+PLAT_SPM_DEBUG_CFLAGS += -DATF_PLAT_CIRQ_UNSUPPORT
+endif
+
+ifeq (${MT_SPM_SSPM_NOTIFIER_SUPPORT}, no)
+PLAT_SPM_DEBUG_CFLAGS += -DATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+else
+BL31_MT_LPM_PLAT_SPM_SOURCE_FILES +=	\
+	${CUR_SPM_FOLDER}/notifier/mt_spm_sspm_notifier.c
+endif
+
+$(info --------------------------------------)
+$(info SPM build flags: ${PLAT_SPM_DEBUG_CFLAGS})
+$(info SPM build files: ${BL31_MT_LPM_PLAT_SPM_SOURCE_FILES})
+$(info --------------------------------------)
+
+# Common makefile for platform.mk
+PLAT_INCLUDES +=				\
+	${PLAT_SPM_DEBUG_CFLAGS}		\
+	-I${CUR_SPM_FOLDER}/			\
+	-I${CUR_SPM_FOLDER}/constraints/	\
+	-I${CUR_SPM_FOLDER}/notifier/
+
+PLAT_BL_COMMON_SOURCES += ${BL31_MT_LPM_PLAT_SPM_SOURCE_FILES}

plat/mediatek/mt8192/drivers/spm/constraints/mt_spm_rc_bus26m.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <common/debug.h>
+
+#include <mt_lp_rm.h>
+#include <mt_spm.h>
+#include <mt_spm_cond.h>
+#include <mt_spm_constraint.h>
+#include <mt_spm_conservation.h>
+#include <mt_spm_idle.h>
+#include <mt_spm_internal.h>
+#include <mt_spm_notifier.h>
+#include <mt_spm_rc_internal.h>
+#include <mt_spm_resource_req.h>
+#include <mt_spm_reg.h>
+#include <mt_spm_suspend.h>
+#include <plat_pm.h>
+#include <plat_mtk_lpm.h>
+
+#ifndef ATF_PLAT_CIRQ_UNSUPPORT
+#include <mt_gic_v3.h>
+#include <plat_mt_cirq.h>
+#endif
+
+#define CONSTRAINT_BUS26M_ALLOW			\
+	(MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF |	\
+	 MT_RM_CONSTRAINT_ALLOW_DRAM_S0 |	\
+	 MT_RM_CONSTRAINT_ALLOW_DRAM_S1 |	\
+	 MT_RM_CONSTRAINT_ALLOW_VCORE_LP |	\
+	 MT_RM_CONSTRAINT_ALLOW_LVTS_STATE |	\
+	 MT_RM_CONSTRAINT_ALLOW_BUS26M_OFF)
+
+#define CONSTRAINT_BUS26M_PCM_FLAG		\
+	(SPM_FLAG_DISABLE_INFRA_PDN |		\
+	 SPM_FLAG_DISABLE_VCORE_DVS |		\
+	 SPM_FLAG_DISABLE_VCORE_DFS |		\
+	 SPM_FLAG_SRAM_SLEEP_CTRL |		\
+	 SPM_FLAG_ENABLE_TIA_WORKAROUND |	\
+	 SPM_FLAG_ENABLE_LVTS_WORKAROUND |	\
+	 SPM_FLAG_KEEP_CSYSPWRACK_HIGH)
+
+#define CONSTRAINT_BUS26M_PCM_FLAG1		\
+	(SPM_FLAG1_DISABLE_MD26M_CK_OFF)
+
+#define CONSTRAINT_BUS26M_RESOURCE_REQ		0U
+
+static unsigned int bus26m_ext_opand;
+static struct mt_irqremain *refer2remain_irq;
+static struct mt_spm_cond_tables cond_bus26m = {
+	.name = "bus26m",
+	.table_cg = {
+		0x07CBF1FC,	/* MTCMOS1 */
+		0x0A0D8856,	/* INFRA0  */
+		0x03AF9A00,	/* INFRA1  */
+		0x86000650,	/* INFRA2  */
+		0xC800C000,	/* INFRA3  */
+		0x00000000,     /* INFRA4  */
+		0x4000007C,     /* INFRA5  */
+		0x280E0800,	/* MMSYS0  */
+		0x00000001,     /* MMSYS1  */
+		0x00000000,	/* MMSYS2  */
+	},
+	.table_pll = (PLL_BIT_UNIVPLL | PLL_BIT_MFGPLL |
+		      PLL_BIT_MSDCPLL | PLL_BIT_TVDPLL |
+		      PLL_BIT_MMPLL),
+};
+
+static struct mt_spm_cond_tables cond_bus26m_res = {
+	.table_cg = { 0U },
+	.table_pll = 0U,
+};
+
+static struct constraint_status status = {
+	.id = MT_RM_CONSTRAINT_ID_BUS26M,
+	.valid = (MT_SPM_RC_VALID_SW |
+		  MT_SPM_RC_VALID_COND_LATCH),
+	.cond_block = 0U,
+	.enter_cnt = 0U,
+	.cond_res = &cond_bus26m_res,
+};
+
+/*
+ * Cirq will take the place of gic when gic is off.
+ * However, cirq cannot work if 26m clk is turned off when system idle/suspend.
+ * Therefore, we need to set irq pending for specific wakeup source.
+ */
+#ifdef ATF_PLAT_CIRQ_UNSUPPORT
+#define do_irqs_delivery()
+#else
+static void mt_spm_irq_remain_dump(struct mt_irqremain *irqs,
+				   unsigned int irq_index,
+				   struct wake_status *wakeup)
+{
+	INFO("[SPM] r12 = 0x%08x(0x%08x), flag = 0x%08x 0x%08x 0x%08x\n",
+	     wakeup->tr.comm.r12, wakeup->md32pcm_wakeup_sta,
+	     wakeup->tr.comm.debug_flag, wakeup->tr.comm.b_sw_flag0,
+	     wakeup->tr.comm.b_sw_flag1);
+
+	INFO("irq:%u(0x%08x) set pending\n",
+	     irqs->wakeupsrc[irq_index], irqs->irqs[irq_index]);
+}
+
+static void do_irqs_delivery(void)
+{
+	unsigned int idx;
+	int res = 0;
+	struct wake_status *wakeup = NULL;
+	struct mt_irqremain *irqs = refer2remain_irq;
+
+	res = spm_conservation_get_result(&wakeup);
+
+	if ((res != 0) && (irqs == NULL)) {
+		return;
+	}
+
+	for (idx = 0U; idx < irqs->count; ++idx) {
+		if (((wakeup->tr.comm.r12 & irqs->wakeupsrc[idx]) != 0U) ||
+		    ((wakeup->raw_sta & irqs->wakeupsrc[idx]) != 0U)) {
+			if ((irqs->wakeupsrc_cat[idx] &
+			     MT_IRQ_REMAIN_CAT_LOG) != 0U) {
+				mt_spm_irq_remain_dump(irqs, idx, wakeup);
+			}
+
+			mt_irq_set_pending(irqs->irqs[idx]);
+		}
+	}
+}
+#endif
+
+static void spm_bus26m_conduct(struct spm_lp_scen *spm_lp,
+			       unsigned int *resource_req)
+{
+	spm_lp->pwrctrl->pcm_flags = (uint32_t)CONSTRAINT_BUS26M_PCM_FLAG;
+	spm_lp->pwrctrl->pcm_flags1 = (uint32_t)CONSTRAINT_BUS26M_PCM_FLAG1;
+	*resource_req |= CONSTRAINT_BUS26M_RESOURCE_REQ;
+}
+
+bool spm_is_valid_rc_bus26m(unsigned int cpu, int state_id)
+{
+	(void)cpu;
+	(void)state_id;
+
+	return (status.cond_block == 0U) && IS_MT_RM_RC_READY(status.valid);
+}
+
+int spm_update_rc_bus26m(int state_id, int type, const void *val)
+{
+	const struct mt_spm_cond_tables *tlb;
+	const struct mt_spm_cond_tables *tlb_check;
+	int res = MT_RM_STATUS_OK;
+
+	if (val == NULL) {
+		return MT_RM_STATUS_BAD;
+	}
+
+	if (type == PLAT_RC_UPDATE_CONDITION) {
+		tlb = (const struct mt_spm_cond_tables *)val;
+		tlb_check = (const struct mt_spm_cond_tables *)&cond_bus26m;
+
+		status.cond_block =
+			mt_spm_cond_check(state_id, tlb, tlb_check,
+					  ((status.valid &
+					    MT_SPM_RC_VALID_COND_LATCH) != 0U) ?
+					  &cond_bus26m_res : NULL);
+	} else if (type == PLAT_RC_UPDATE_REMAIN_IRQS) {
+		refer2remain_irq = (struct mt_irqremain *)val;
+	} else {
+		res = MT_RM_STATUS_BAD;
+	}
+
+	return res;
+}
+
+unsigned int spm_allow_rc_bus26m(int state_id)
+{
+	(void)state_id;
+
+	return CONSTRAINT_BUS26M_ALLOW;
+}
+
+int spm_run_rc_bus26m(unsigned int cpu, int state_id)
+{
+	(void)cpu;
+
+#ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+	mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_ENTER, CONSTRAINT_BUS26M_ALLOW |
+			       (IS_PLAT_SUSPEND_ID(state_id) ?
+				MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND : 0U));
+#endif
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		mt_spm_suspend_enter(state_id,
+				     (MT_SPM_EX_OP_SET_WDT |
+				      MT_SPM_EX_OP_HW_S1_DETECT |
+				      bus26m_ext_opand),
+				     CONSTRAINT_BUS26M_RESOURCE_REQ);
+	} else {
+		mt_spm_idle_generic_enter(state_id, MT_SPM_EX_OP_HW_S1_DETECT,
+					  spm_bus26m_conduct);
+	}
+
+	return 0;
+}
+
+int spm_reset_rc_bus26m(unsigned int cpu, int state_id)
+{
+	unsigned int ext_op = MT_SPM_EX_OP_HW_S1_DETECT;
+
+	(void)cpu;
+
+#ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+	mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_LEAVE, 0U);
+#endif
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		ext_op |= (bus26m_ext_opand | MT_SPM_EX_OP_SET_WDT);
+		mt_spm_suspend_resume(state_id, ext_op, NULL);
+		bus26m_ext_opand = 0U;
+	} else {
+		mt_spm_idle_generic_resume(state_id, ext_op, NULL);
+		status.enter_cnt++;
+	}
+
+	do_irqs_delivery();
+
+	return 0;
+}

plat/mediatek/mt8192/drivers/spm/constraints/mt_spm_rc_cpu_buck_ldo.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <common/debug.h>
+
+#include <mt_spm.h>
+#include <mt_spm_cond.h>
+#include <mt_spm_constraint.h>
+#include <mt_spm_conservation.h>
+#include <mt_spm_idle.h>
+#include <mt_spm_internal.h>
+#include <mt_spm_notifier.h>
+#include <mt_spm_rc_internal.h>
+#include <mt_spm_resource_req.h>
+#include <mt_spm_reg.h>
+#include <mt_spm_suspend.h>
+#include <plat_pm.h>
+
+#define CONSTRAINT_CPU_BUCK_PCM_FLAG		\
+	(SPM_FLAG_DISABLE_INFRA_PDN |		\
+	 SPM_FLAG_DISABLE_VCORE_DVS |		\
+	 SPM_FLAG_DISABLE_VCORE_DFS |		\
+	 SPM_FLAG_SRAM_SLEEP_CTRL |		\
+	 SPM_FLAG_KEEP_CSYSPWRACK_HIGH)
+
+#define CONSTRAINT_CPU_BUCK_PCM_FLAG1		0U
+
+#define CONSTRAINT_CPU_BUCK_RESOURCE_REQ	\
+	(MT_SPM_DRAM_S1 |			\
+	 MT_SPM_DRAM_S0 |			\
+	 MT_SPM_SYSPLL |			\
+	 MT_SPM_INFRA |				\
+	 MT_SPM_26M |				\
+	 MT_SPM_XO_FPM)
+
+
+static unsigned int cpubuckldo_status = MT_SPM_RC_VALID_SW;
+static unsigned int cpubuckldo_enter_cnt;
+
+static void spm_cpu_bcuk_ldo_conduct(struct spm_lp_scen *spm_lp,
+				     unsigned int *resource_req)
+{
+	spm_lp->pwrctrl->pcm_flags = (uint32_t)CONSTRAINT_CPU_BUCK_PCM_FLAG;
+	spm_lp->pwrctrl->pcm_flags1 = (uint32_t)CONSTRAINT_CPU_BUCK_PCM_FLAG1;
+	*resource_req |= CONSTRAINT_CPU_BUCK_RESOURCE_REQ;
+}
+
+bool spm_is_valid_rc_cpu_buck_ldo(unsigned int cpu, int state_id)
+{
+	(void)cpu;
+	(void)state_id;
+
+	return IS_MT_RM_RC_READY(cpubuckldo_status);
+}
+
+unsigned int spm_allow_rc_cpu_buck_ldo(int state_id)
+{
+	(void)state_id;
+
+	return MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF;
+}
+
+int spm_run_rc_cpu_buck_ldo(unsigned int cpu, int state_id)
+{
+	(void)cpu;
+
+#ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+	mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_ENTER,
+			       (IS_PLAT_SUSPEND_ID(state_id) ?
+				MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND : 0U));
+#endif
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		mt_spm_suspend_enter(state_id,
+				     MT_SPM_EX_OP_SET_WDT,
+				     CONSTRAINT_CPU_BUCK_RESOURCE_REQ);
+	} else {
+		mt_spm_idle_generic_enter(state_id, 0U,
+					  spm_cpu_bcuk_ldo_conduct);
+	}
+
+	cpubuckldo_enter_cnt++;
+
+	return 0;
+}
+
+int spm_reset_rc_cpu_buck_ldo(unsigned int cpu, int state_id)
+{
+	(void)cpu;
+
+#ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+	mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_LEAVE, 0U);
+#endif
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		mt_spm_suspend_resume(state_id, MT_SPM_EX_OP_SET_WDT, NULL);
+	} else {
+		mt_spm_idle_generic_resume(state_id, 0U, NULL);
+	}
+
+	return 0;
+}

plat/mediatek/mt8192/drivers/spm/constraints/mt_spm_rc_dram.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <common/debug.h>
+
+#include <mt_lp_rm.h>
+#include <mt_spm.h>
+#include <mt_spm_cond.h>
+#include <mt_spm_constraint.h>
+#include <mt_spm_conservation.h>
+#include <mt_spm_idle.h>
+#include <mt_spm_internal.h>
+#include <mt_spm_notifier.h>
+#include <mt_spm_resource_req.h>
+#include <mt_spm_reg.h>
+#include <mt_spm_rc_internal.h>
+#include <mt_spm_suspend.h>
+#include <plat_pm.h>
+#include <plat_mtk_lpm.h>
+
+#define CONSTRAINT_DRAM_ALLOW			\
+	(MT_RM_CONSTRAINT_ALLOW_DRAM_S0	|	\
+	 MT_RM_CONSTRAINT_ALLOW_DRAM_S1 |	\
+	 MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF)
+
+#define CONSTRAINT_DRAM_PCM_FLAG		\
+	(SPM_FLAG_DISABLE_INFRA_PDN |		\
+	 SPM_FLAG_DISABLE_VCORE_DVS |		\
+	 SPM_FLAG_DISABLE_VCORE_DFS |		\
+	 SPM_FLAG_SRAM_SLEEP_CTRL |		\
+	 SPM_FLAG_KEEP_CSYSPWRACK_HIGH)
+
+#define CONSTRAINT_DRAM_PCM_FLAG1		0U
+
+#define CONSTRAINT_DRAM_RESOURCE_REQ		\
+	(MT_SPM_SYSPLL |			\
+	 MT_SPM_INFRA |				\
+	 MT_SPM_26M)
+
+static struct mt_spm_cond_tables cond_dram = {
+	.name = "dram",
+	.table_cg = {
+		0x078BF1FC,	/* MTCMOS1 */
+		0x080D8856,	/* INFRA0  */
+		0x03AF9A00,	/* INFRA1  */
+		0x86000640,	/* INFRA2  */
+		0xC800C000,	/* INFRA3  */
+		0x00000000,     /* INFRA4  */
+		0x00000000,     /* INFRA5  */
+		0x200C0000,	/* MMSYS0  */
+		0x00000000,     /* MMSYS1  */
+		0x00000000,	/* MMSYS2  */
+	},
+	.table_pll = 0U,
+};
+
+static struct mt_spm_cond_tables cond_dram_res = {
+	.table_cg = { 0U },
+	.table_pll = 0U,
+};
+
+static struct constraint_status status = {
+	.id = MT_RM_CONSTRAINT_ID_DRAM,
+	.valid = (MT_SPM_RC_VALID_SW |
+		  MT_SPM_RC_VALID_COND_LATCH |
+		  MT_SPM_RC_VALID_XSOC_BBLPM),
+	.cond_block = 0U,
+	.enter_cnt = 0U,
+	.cond_res = &cond_dram_res,
+};
+
+static void spm_dram_conduct(struct spm_lp_scen *spm_lp,
+			     unsigned int *resource_req)
+{
+	spm_lp->pwrctrl->pcm_flags = (uint32_t)CONSTRAINT_DRAM_PCM_FLAG;
+	spm_lp->pwrctrl->pcm_flags1 = (uint32_t)CONSTRAINT_DRAM_PCM_FLAG1;
+	*resource_req |= CONSTRAINT_DRAM_RESOURCE_REQ;
+}
+
+bool spm_is_valid_rc_dram(unsigned int cpu, int state_id)
+{
+	(void)cpu;
+	(void)state_id;
+
+	return (status.cond_block == 0U) && IS_MT_RM_RC_READY(status.valid);
+}
+
+int spm_update_rc_dram(int state_id, int type, const void *val)
+{
+	const struct mt_spm_cond_tables *tlb;
+	const struct mt_spm_cond_tables *tlb_check;
+	int res = MT_RM_STATUS_OK;
+
+	if (val == NULL) {
+		return MT_RM_STATUS_BAD;
+	}
+
+	if (type == PLAT_RC_UPDATE_CONDITION) {
+		tlb = (const struct mt_spm_cond_tables *)val;
+		tlb_check = (const struct mt_spm_cond_tables *)&cond_dram;
+		status.cond_block =
+			mt_spm_cond_check(state_id, tlb, tlb_check,
+					  ((status.valid &
+					    MT_SPM_RC_VALID_COND_LATCH) != 0U) ?
+					  &cond_dram_res : NULL);
+	} else {
+		res = MT_RM_STATUS_BAD;
+	}
+
+	return res;
+}
+
+unsigned int spm_allow_rc_dram(int state_id)
+{
+	(void)state_id;
+
+	return CONSTRAINT_DRAM_ALLOW;
+}
+
+int spm_run_rc_dram(unsigned int cpu, int state_id)
+{
+	unsigned int ext_op = MT_SPM_EX_OP_HW_S1_DETECT;
+	unsigned int allows = CONSTRAINT_DRAM_ALLOW;
+
+	(void)cpu;
+
+	if (IS_MT_SPM_RC_BBLPM_MODE(status.valid)) {
+#ifdef MT_SPM_USING_SRCLKEN_RC
+		ext_op |= MT_SPM_EX_OP_SRCLKEN_RC_BBLPM;
+#else
+		allows |= MT_RM_CONSTRAINT_ALLOW_BBLPM;
+#endif
+	}
+
+#ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+	mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_ENTER, allows |
+			       (IS_PLAT_SUSPEND_ID(state_id) ?
+				MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND : 0U));
+#else
+	(void)allows;
+#endif
+
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		mt_spm_suspend_enter(state_id,
+				     (MT_SPM_EX_OP_SET_WDT |
+				      MT_SPM_EX_OP_HW_S1_DETECT),
+				     CONSTRAINT_DRAM_RESOURCE_REQ);
+	} else {
+		mt_spm_idle_generic_enter(state_id, ext_op, spm_dram_conduct);
+	}
+
+	return 0;
+}
+
+int spm_reset_rc_dram(unsigned int cpu, int state_id)
+{
+	unsigned int ext_op = MT_SPM_EX_OP_HW_S1_DETECT;
+	unsigned int allows = CONSTRAINT_DRAM_ALLOW;
+
+	(void)cpu;
+
+	if (IS_MT_SPM_RC_BBLPM_MODE(status.valid)) {
+#ifdef MT_SPM_USING_SRCLKEN_RC
+		ext_op |= MT_SPM_EX_OP_SRCLKEN_RC_BBLPM;
+#else
+		allows |= MT_RM_CONSTRAINT_ALLOW_BBLPM;
+#endif
+	}
+
+#ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+	mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_LEAVE, allows);
+#else
+	(void)allows;
+#endif
+
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		mt_spm_suspend_resume(state_id,
+				      (MT_SPM_EX_OP_SET_WDT |
+				       MT_SPM_EX_OP_HW_S1_DETECT),
+				      NULL);
+	} else {
+		mt_spm_idle_generic_resume(state_id, ext_op, NULL);
+		status.enter_cnt++;
+	}
+
+	return 0;
+}

plat/mediatek/mt8192/drivers/spm/constraints/mt_spm_rc_internal.h

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_SPM_RC_INTERNAL_H
+#define MT_SPM_RC_INTERNAL_H
+
+#include <stdbool.h>
+
+#define SPM_FLAG_SRAM_SLEEP_CTRL			\
+	(SPM_FLAG_DISABLE_SSPM_SRAM_SLEEP |		\
+	 SPM_FLAG_DISABLE_DRAMC_MCU_SRAM_SLEEP |	\
+	 SPM_FLAG_DISABLE_SYSRAM_SLEEP |		\
+	 SPM_FLAG_DISABLE_MCUPM_SRAM_SLEEP |		\
+	 SPM_FLAG_DISABLE_SRAM_EVENT)
+
+/* cpu buck/ldo constraint function */
+bool spm_is_valid_rc_cpu_buck_ldo(unsigned int cpu, int state_id);
+unsigned int spm_allow_rc_cpu_buck_ldo(int state_id);
+int spm_run_rc_cpu_buck_ldo(unsigned int cpu, int state_id);
+int spm_reset_rc_cpu_buck_ldo(unsigned int cpu, int state_id);
+
+/* spm resource dram constraint function */
+bool spm_is_valid_rc_dram(unsigned int cpu, int state_id);
+int spm_update_rc_dram(int state_id, int type, const void *val);
+unsigned int spm_allow_rc_dram(int state_id);
+int spm_run_rc_dram(unsigned int cpu, int state_id);
+int spm_reset_rc_dram(unsigned int cpu, int state_id);
+
+/* spm resource syspll constraint function */
+bool spm_is_valid_rc_syspll(unsigned int cpu, int state_id);
+int spm_update_rc_syspll(int state_id, int type, const void *val);
+unsigned int spm_allow_rc_syspll(int state_id);
+int spm_run_rc_syspll(unsigned int cpu, int state_id);
+int spm_reset_rc_syspll(unsigned int cpu, int state_id);
+
+/* spm resource bus26m constraint function */
+bool spm_is_valid_rc_bus26m(unsigned int cpu, int state_id);
+int spm_update_rc_bus26m(int state_id, int type, const void *val);
+unsigned int spm_allow_rc_bus26m(int state_id);
+int spm_run_rc_bus26m(unsigned int cpu, int state_id);
+int spm_reset_rc_bus26m(unsigned int cpu, int state_id);
+#endif /* MT_SPM_RC_INTERNAL_H */

plat/mediatek/mt8192/drivers/spm/constraints/mt_spm_rc_syspll.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+
+#include <mt_lp_rm.h>
+#include <mt_spm.h>
+#include <mt_spm_cond.h>
+#include <mt_spm_constraint.h>
+#include <mt_spm_conservation.h>
+#include <mt_spm_idle.h>
+#include <mt_spm_internal.h>
+#include <mt_spm_notifier.h>
+#include <mt_spm_rc_internal.h>
+#include <mt_spm_reg.h>
+#include <mt_spm_resource_req.h>
+#include <mt_spm_suspend.h>
+#include <plat_pm.h>
+#include <plat_mtk_lpm.h>
+
+#define CONSTRAINT_SYSPLL_ALLOW			\
+	(MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF |	\
+	 MT_RM_CONSTRAINT_ALLOW_DRAM_S0 |	\
+	 MT_RM_CONSTRAINT_ALLOW_DRAM_S1 |	\
+	 MT_RM_CONSTRAINT_ALLOW_VCORE_LP)
+
+#define CONSTRAINT_SYSPLL_PCM_FLAG		\
+	(SPM_FLAG_DISABLE_INFRA_PDN |		\
+	 SPM_FLAG_DISABLE_VCORE_DVS |		\
+	 SPM_FLAG_DISABLE_VCORE_DFS |		\
+	 SPM_FLAG_SRAM_SLEEP_CTRL |		\
+	 SPM_FLAG_KEEP_CSYSPWRACK_HIGH |	\
+	 SPM_FLAG_ENABLE_6315_CTRL |		\
+	 SPM_FLAG_USE_SRCCLKENO2)
+
+#define CONSTRAINT_SYSPLL_PCM_FLAG1		0U
+#define CONSTRAINT_SYSPLL_RESOURCE_REQ		\
+	(MT_SPM_26M)
+
+static struct mt_spm_cond_tables cond_syspll = {
+	.name = "syspll",
+	.table_cg = {
+		0x078BF1FC,	/* MTCMOS1 */
+		0x080D8856,	/* INFRA0  */
+		0x03AF9A00,	/* INFRA1  */
+		0x86000640,	/* INFRA2  */
+		0xC800C000,	/* INFRA3  */
+		0x00000000,     /* INFRA4  */
+		0x0000007C,     /* INFRA5  */
+		0x280E0800,	/* MMSYS0  */
+		0x00000001,     /* MMSYS1  */
+		0x00000000,	/* MMSYS2  */
+	},
+	.table_pll = 0U,
+};
+
+static struct mt_spm_cond_tables cond_syspll_res = {
+	.table_cg = { 0U },
+	.table_pll = 0U,
+};
+
+static struct constraint_status status = {
+	.id = MT_RM_CONSTRAINT_ID_SYSPLL,
+	.valid = (MT_SPM_RC_VALID_SW |
+		  MT_SPM_RC_VALID_COND_LATCH |
+		  MT_SPM_RC_VALID_XSOC_BBLPM),
+	.cond_block = 0U,
+	.enter_cnt = 0U,
+	.cond_res = &cond_syspll_res,
+};
+
+static void spm_syspll_conduct(struct spm_lp_scen *spm_lp,
+			       unsigned int *resource_req)
+{
+	spm_lp->pwrctrl->pcm_flags = (uint32_t)CONSTRAINT_SYSPLL_PCM_FLAG;
+	spm_lp->pwrctrl->pcm_flags1 = (uint32_t)CONSTRAINT_SYSPLL_PCM_FLAG1;
+	*resource_req |= CONSTRAINT_SYSPLL_RESOURCE_REQ;
+}
+
+bool spm_is_valid_rc_syspll(unsigned int cpu, int state_id)
+{
+	(void)cpu;
+	(void)state_id;
+
+	return (status.cond_block == 0U) && IS_MT_RM_RC_READY(status.valid);
+}
+
+int spm_update_rc_syspll(int state_id, int type, const void *val)
+{
+	const struct mt_spm_cond_tables *tlb;
+	const struct mt_spm_cond_tables *tlb_check;
+	int res = MT_RM_STATUS_OK;
+
+	if (val == NULL) {
+		return MT_RM_STATUS_BAD;
+	}
+
+	if (type == PLAT_RC_UPDATE_CONDITION) {
+		tlb = (const struct mt_spm_cond_tables *)val;
+		tlb_check = (const struct mt_spm_cond_tables *)&cond_syspll;
+
+		status.cond_block =
+			mt_spm_cond_check(state_id, tlb, tlb_check,
+					  ((status.valid &
+					    MT_SPM_RC_VALID_COND_LATCH) != 0U) ?
+					  &cond_syspll_res : NULL);
+	} else {
+		res = MT_RM_STATUS_BAD;
+	}
+
+	return res;
+}
+
+unsigned int spm_allow_rc_syspll(int state_id)
+{
+	(void)state_id;
+
+	return CONSTRAINT_SYSPLL_ALLOW;
+}
+
+int spm_run_rc_syspll(unsigned int cpu, int state_id)
+{
+	unsigned int ext_op = MT_SPM_EX_OP_HW_S1_DETECT;
+	unsigned int allows = CONSTRAINT_SYSPLL_ALLOW;
+
+	(void)cpu;
+
+	if (IS_MT_SPM_RC_BBLPM_MODE(status.valid)) {
+#ifdef MT_SPM_USING_SRCLKEN_RC
+		ext_op |= MT_SPM_EX_OP_SRCLKEN_RC_BBLPM;
+#else
+		allows |= MT_RM_CONSTRAINT_ALLOW_BBLPM;
+#endif
+	}
+
+#ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+	mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_ENTER, allows |
+			       (IS_PLAT_SUSPEND_ID(state_id) ?
+				MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND : 0U));
+#else
+	(void)allows;
+#endif
+
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		mt_spm_suspend_enter(state_id,
+				     (MT_SPM_EX_OP_SET_WDT |
+				      MT_SPM_EX_OP_HW_S1_DETECT |
+				      MT_SPM_EX_OP_SET_SUSPEND_MODE),
+				     CONSTRAINT_SYSPLL_RESOURCE_REQ);
+	} else {
+		mt_spm_idle_generic_enter(state_id, ext_op, spm_syspll_conduct);
+	}
+
+	return 0;
+}
+
+int spm_reset_rc_syspll(unsigned int cpu, int state_id)
+{
+	unsigned int ext_op = MT_SPM_EX_OP_HW_S1_DETECT;
+	unsigned int allows = CONSTRAINT_SYSPLL_ALLOW;
+
+	(void)cpu;
+
+	if (IS_MT_SPM_RC_BBLPM_MODE(status.valid)) {
+#ifdef MT_SPM_USING_SRCLKEN_RC
+		ext_op |= MT_SPM_EX_OP_SRCLKEN_RC_BBLPM;
+#else
+		allows |= MT_RM_CONSTRAINT_ALLOW_BBLPM;
+#endif
+	}
+
+#ifndef ATF_PLAT_SPM_SSPM_NOTIFIER_UNSUPPORT
+	mt_spm_sspm_notify_u32(MT_SPM_NOTIFY_LP_LEAVE, allows);
+#else
+	(void)allows;
+#endif
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		mt_spm_suspend_resume(state_id,
+				      (MT_SPM_EX_OP_SET_SUSPEND_MODE |
+				       MT_SPM_EX_OP_SET_WDT |
+				       MT_SPM_EX_OP_HW_S1_DETECT),
+				      NULL);
+	} else {
+		mt_spm_idle_generic_resume(state_id, ext_op, NULL);
+		status.enter_cnt++;
+	}
+
+	return 0;
+}

plat/mediatek/mt8192/drivers/spm/mt_spm.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stddef.h>
+#include <string.h>
+#include <common/debug.h>
+#include <lib/bakery_lock.h>
+#include <lib/mmio.h>
+#include <mt_lp_rm.h>
+#include <mt_spm.h>
+#include <mt_spm_cond.h>
+#include <mt_spm_conservation.h>
+#include <mt_spm_constraint.h>
+#include <mt_spm_idle.h>
+#include <mt_spm_internal.h>
+#include <mt_spm_pmic_wrap.h>
+#include <mt_spm_rc_internal.h>
+#include <mt_spm_reg.h>
+#include <mt_spm_resource_req.h>
+#include <mt_spm_suspend.h>
+#include <mtk_plat_common.h>
+#include <plat_mtk_lpm.h>
+#include <plat_pm.h>
+#include <platform_def.h>
+#include <sleep_def.h>
+
+#ifdef MT_SPM_USING_BAKERY_LOCK
+DEFINE_BAKERY_LOCK(spm_lock);
+#define plat_spm_lock_init() bakery_lock_init(&spm_lock)
+#else
+spinlock_t spm_lock;
+#define plat_spm_lock_init()
+#endif
+
+/* CLK_SCP_CFG_0 */
+#define CLK_SCP_CFG_0		(TOPCKGEN_BASE + 0x200)
+#define SPM_CK_CONTROL_EN	0x3FF
+
+/* CLK_SCP_CFG_1 */
+#define CLK_SCP_CFG_1		(TOPCKGEN_BASE + 0x210)
+#define CLK_SCP_CFG_1_MASK	0x100C
+#define CLK_SCP_CFG_1_SPM	0x3
+
+struct mt_resource_constraint plat_constraint_bus26m = {
+	.is_valid = spm_is_valid_rc_bus26m,
+	.update = spm_update_rc_bus26m,
+	.allow = spm_allow_rc_bus26m,
+	.run = spm_run_rc_bus26m,
+	.reset = spm_reset_rc_bus26m,
+};
+
+struct mt_resource_constraint plat_constraint_syspll = {
+	.is_valid = spm_is_valid_rc_syspll,
+	.update = spm_update_rc_syspll,
+	.allow = spm_allow_rc_syspll,
+	.run = spm_run_rc_syspll,
+	.reset = spm_reset_rc_syspll,
+};
+
+struct mt_resource_constraint plat_constraint_dram = {
+	.is_valid = spm_is_valid_rc_dram,
+	.update = spm_update_rc_dram,
+	.allow = spm_allow_rc_dram,
+	.run = spm_run_rc_dram,
+	.reset = spm_reset_rc_dram,
+};
+
+struct mt_resource_constraint plat_constraint_cpu = {
+	.is_valid = spm_is_valid_rc_cpu_buck_ldo,
+	.update = NULL,
+	.allow = spm_allow_rc_cpu_buck_ldo,
+	.run = spm_run_rc_cpu_buck_ldo,
+	.reset = spm_reset_rc_cpu_buck_ldo,
+};
+
+struct mt_resource_constraint *plat_constraints[] = {
+	&plat_constraint_bus26m,
+	&plat_constraint_syspll,
+	&plat_constraint_dram,
+	&plat_constraint_cpu,
+	NULL,
+};
+
+struct mt_resource_manager plat_mt8192_rm = {
+	.update = mt_spm_cond_update,
+	.consts = plat_constraints,
+};
+
+void spm_boot_init(void)
+{
+	/* switch ck_off/axi_26m control to SPM */
+	mmio_setbits_32(CLK_SCP_CFG_0, SPM_CK_CONTROL_EN);
+	mmio_clrsetbits_32(CLK_SCP_CFG_1, CLK_SCP_CFG_1_MASK,
+			   CLK_SCP_CFG_1_SPM);
+
+	plat_spm_lock_init();
+	mt_spm_pmic_wrap_set_phase(PMIC_WRAP_PHASE_ALLINONE);
+	mt_lp_rm_register(&plat_mt8192_rm);
+	mt_spm_idle_generic_init();
+	mt_spm_suspend_init();
+}

plat/mediatek/mt8192/drivers/spm/mt_spm.h

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_SPM_H
+#define MT_SPM_H
+
+#include <lib/bakery_lock.h>
+#include <lib/spinlock.h>
+
+#include <plat_mtk_lpm.h>
+
+/*
+ * ARM v8.2, the cache will turn off automatically when cpu
+ * power down. So, there is no doubt to use the spin_lock here
+ */
+#if !HW_ASSISTED_COHERENCY
+#define MT_SPM_USING_BAKERY_LOCK
+#endif
+
+#ifdef MT_SPM_USING_BAKERY_LOCK
+DECLARE_BAKERY_LOCK(spm_lock);
+#define plat_spm_lock() bakery_lock_get(&spm_lock)
+#define plat_spm_unlock() bakery_lock_release(&spm_lock)
+#else
+extern spinlock_t spm_lock;
+#define plat_spm_lock() spin_lock(&spm_lock)
+#define plat_spm_unlock() spin_unlock(&spm_lock)
+#endif
+
+#define MT_SPM_USING_SRCLKEN_RC
+
+/* spm extern operand definition */
+#define MT_SPM_EX_OP_CLR_26M_RECORD			(1U << 0)
+#define MT_SPM_EX_OP_SET_WDT				(1U << 1)
+#define MT_SPM_EX_OP_NON_GENERIC_RESOURCE_REQ		(1U << 2)
+#define MT_SPM_EX_OP_SET_SUSPEND_MODE			(1U << 3)
+#define MT_SPM_EX_OP_SET_IS_ADSP			(1U << 4)
+#define MT_SPM_EX_OP_SRCLKEN_RC_BBLPM			(1U << 5)
+#define MT_SPM_EX_OP_HW_S1_DETECT			(1U << 6)
+
+typedef enum {
+	WR_NONE = 0,
+	WR_UART_BUSY = 1,
+	WR_ABORT = 2,
+	WR_PCM_TIMER = 3,
+	WR_WAKE_SRC = 4,
+	WR_DVFSRC = 5,
+	WR_TWAM = 6,
+	WR_PMSR = 7,
+	WR_SPM_ACK_CHK = 8,
+	WR_UNKNOWN = 9,
+} wake_reason_t;
+
+static inline void spm_lock_get(void)
+{
+	plat_spm_lock();
+}
+
+static inline void spm_lock_release(void)
+{
+	plat_spm_unlock();
+}
+
+extern void spm_boot_init(void);
+#endif /* MT_SPM_H */

plat/mediatek/mt8192/drivers/spm/mt_spm_cond.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdbool.h>
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+
+#include <mt_spm_cond.h>
+#include <mt_spm_conservation.h>
+#include <mt_spm_constraint.h>
+#include <plat_mtk_lpm.h>
+#include <plat_pm.h>
+#include <platform_def.h>
+
+#define MT_LP_TZ_INFRA_REG(ofs)		(INFRACFG_AO_BASE + ofs)
+#define MT_LP_TZ_MM_REG(ofs)		(MMSYS_BASE + ofs)
+#define MT_LP_TZ_SPM_REG(ofs)		(SPM_BASE + ofs)
+#define MT_LP_TZ_TOPCK_REG(ofs)		(TOPCKGEN_BASE + ofs)
+#define MT_LP_TZ_APMIXEDSYS(ofs)	(APMIXEDSYS + ofs)
+
+#define SPM_PWR_STATUS			MT_LP_TZ_SPM_REG(0x016C)
+#define SPM_PWR_STATUS_2ND		MT_LP_TZ_SPM_REG(0x0170)
+#define	INFRA_SW_CG0			MT_LP_TZ_INFRA_REG(0x0094)
+#define	INFRA_SW_CG1			MT_LP_TZ_INFRA_REG(0x0090)
+#define	INFRA_SW_CG2			MT_LP_TZ_INFRA_REG(0x00AC)
+#define	INFRA_SW_CG3			MT_LP_TZ_INFRA_REG(0x00C8)
+#define INFRA_SW_CG4                    MT_LP_TZ_INFRA_REG(0x00D8)
+#define INFRA_SW_CG5                    MT_LP_TZ_INFRA_REG(0x00E8)
+#define MMSYS_CG_CON0			MT_LP_TZ_MM_REG(0x100)
+#define MMSYS_CG_CON1			MT_LP_TZ_MM_REG(0x110)
+#define MMSYS_CG_CON2                   MT_LP_TZ_MM_REG(0x1A0)
+
+/***********************************************************
+ * Check clkmux registers
+ ***********************************************************/
+#define CLK_CFG(id)	MT_LP_TZ_TOPCK_REG(0x20 + id * 0x10)
+#define PDN_CHECK	BIT(7)
+#define CLK_CHECK	BIT(31)
+
+enum {
+	CLKMUX_DISP = 0,
+	CLKMUX_MDP  = 1,
+	CLKMUX_IMG1 = 2,
+	CLKMUX_IMG2 = 3,
+	NF_CLKMUX,
+};
+
+static bool is_clkmux_pdn(unsigned int clkmux_id)
+{
+	unsigned int reg, val, idx;
+
+	if ((clkmux_id & CLK_CHECK) != 0U) {
+		clkmux_id = (clkmux_id & ~CLK_CHECK);
+		reg = clkmux_id / 4U;
+		val = mmio_read_32(CLK_CFG(reg));
+		idx = clkmux_id % 4U;
+		val = (val >> (idx * 8U)) & PDN_CHECK;
+		return (val != 0U);
+	}
+
+	return false;
+}
+
+static struct mt_spm_cond_tables spm_cond_t;
+
+struct idle_cond_info {
+	unsigned int subsys_mask;
+	uintptr_t addr;
+	bool bBitflip;
+	unsigned int clkmux_id;
+};
+
+#define IDLE_CG(mask, addr, bitflip, clkmux)	\
+	{mask, (uintptr_t)addr, bitflip, clkmux}
+
+static struct idle_cond_info idle_cg_info[PLAT_SPM_COND_MAX] = {
+	IDLE_CG(0xffffffff, SPM_PWR_STATUS, false, 0U),
+	IDLE_CG(0x00000200, INFRA_SW_CG0, true, 0U),
+	IDLE_CG(0x00000200, INFRA_SW_CG1, true, 0U),
+	IDLE_CG(0x00000200, INFRA_SW_CG2, true, 0U),
+	IDLE_CG(0x00000200, INFRA_SW_CG3, true, 0U),
+	IDLE_CG(0x00000200, INFRA_SW_CG4, true, 0U),
+	IDLE_CG(0x00000200, INFRA_SW_CG5, true, 0U),
+	IDLE_CG(0x00100000, MMSYS_CG_CON0, true, (CLK_CHECK | CLKMUX_DISP)),
+	IDLE_CG(0x00100000, MMSYS_CG_CON1, true, (CLK_CHECK | CLKMUX_DISP)),
+	IDLE_CG(0x00100000, MMSYS_CG_CON2, true, (CLK_CHECK | CLKMUX_DISP)),
+};
+
+/***********************************************************
+ * Check pll idle condition
+ ***********************************************************/
+#define PLL_MFGPLL	MT_LP_TZ_APMIXEDSYS(0x268)
+#define PLL_MMPLL	MT_LP_TZ_APMIXEDSYS(0x360)
+#define PLL_UNIVPLL	MT_LP_TZ_APMIXEDSYS(0x308)
+#define PLL_MSDCPLL	MT_LP_TZ_APMIXEDSYS(0x350)
+#define PLL_TVDPLL	MT_LP_TZ_APMIXEDSYS(0x380)
+
+unsigned int mt_spm_cond_check(int state_id,
+			       const struct mt_spm_cond_tables *src,
+			       const struct mt_spm_cond_tables *dest,
+			       struct mt_spm_cond_tables *res)
+{
+	unsigned int blocked = 0U, i;
+	bool is_system_suspend = IS_PLAT_SUSPEND_ID(state_id);
+
+	if ((src == NULL) || (dest == NULL)) {
+		return SPM_COND_CHECK_FAIL;
+	}
+
+	for (i = 0U; i < PLAT_SPM_COND_MAX; i++) {
+		if (res != NULL) {
+			res->table_cg[i] =
+				(src->table_cg[i] & dest->table_cg[i]);
+
+			if (is_system_suspend && (res->table_cg[i] != 0U)) {
+				INFO("suspend: %s block[%u](0x%lx) = 0x%08x\n",
+				     dest->name, i, idle_cg_info[i].addr,
+				     res->table_cg[i]);
+			}
+
+			if (res->table_cg[i] != 0U) {
+				blocked |= (1U << i);
+			}
+		} else if ((src->table_cg[i] & dest->table_cg[i]) != 0U) {
+			blocked |= (1U << i);
+			break;
+		}
+	}
+
+	if (res != NULL) {
+		res->table_pll = (src->table_pll & dest->table_pll);
+
+		if (res->table_pll != 0U) {
+			blocked |=
+				(res->table_pll << SPM_COND_BLOCKED_PLL_IDX) |
+				 SPM_COND_CHECK_BLOCKED_PLL;
+		}
+	} else if ((src->table_pll & dest->table_pll) != 0U) {
+		blocked |= SPM_COND_CHECK_BLOCKED_PLL;
+	}
+
+	return blocked;
+}
+
+#define IS_MT_SPM_PWR_OFF(mask)					\
+	(((mmio_read_32(SPM_PWR_STATUS) & mask) == 0U) &&	\
+	 ((mmio_read_32(SPM_PWR_STATUS_2ND) & mask) == 0U))
+
+int mt_spm_cond_update(struct mt_resource_constraint **con,
+		       int stateid, void *priv)
+{
+	int res;
+	uint32_t i;
+	struct mt_resource_constraint *const *rc;
+
+	/* read all cg state */
+	for (i = 0U; i < PLAT_SPM_COND_MAX; i++) {
+		spm_cond_t.table_cg[i] = 0U;
+
+		/* check mtcmos, if off set idle_value and clk to 0 disable */
+		if (IS_MT_SPM_PWR_OFF(idle_cg_info[i].subsys_mask)) {
+			continue;
+		}
+
+		/* check clkmux */
+		if (is_clkmux_pdn(idle_cg_info[i].clkmux_id)) {
+			continue;
+		}
+
+		spm_cond_t.table_cg[i] = idle_cg_info[i].bBitflip ?
+					 ~mmio_read_32(idle_cg_info[i].addr) :
+					 mmio_read_32(idle_cg_info[i].addr);
+	}
+
+	spm_cond_t.table_pll = 0U;
+	if ((mmio_read_32(PLL_MFGPLL) & 0x1) != 0U) {
+		spm_cond_t.table_pll |= PLL_BIT_MFGPLL;
+	}
+
+	if ((mmio_read_32(PLL_MMPLL) & 0x1) != 0U) {
+		spm_cond_t.table_pll |= PLL_BIT_MMPLL;
+	}
+
+	if ((mmio_read_32(PLL_UNIVPLL) & 0x1) != 0U) {
+		spm_cond_t.table_pll |= PLL_BIT_UNIVPLL;
+	}
+
+	if ((mmio_read_32(PLL_MSDCPLL) & 0x1) != 0U) {
+		spm_cond_t.table_pll |= PLL_BIT_MSDCPLL;
+	}
+
+	if ((mmio_read_32(PLL_TVDPLL) & 0x1) != 0U) {
+		spm_cond_t.table_pll |= PLL_BIT_TVDPLL;
+	}
+
+	spm_cond_t.priv = priv;
+	for (rc = con; *rc != NULL; rc++) {
+		if (((*rc)->update) == NULL) {
+			continue;
+		}
+
+		res = (*rc)->update(stateid, PLAT_RC_UPDATE_CONDITION,
+				    (void const *)&spm_cond_t);
+		if (res != MT_RM_STATUS_OK) {
+			break;
+		}
+	}
+
+	return 0;
+}

plat/mediatek/mt8192/drivers/spm/mt_spm_cond.h

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_SPM_CONDIT_H
+#define MT_SPM_CONDIT_H
+
+#include <mt_lp_rm.h>
+
+enum PLAT_SPM_COND {
+	PLAT_SPM_COND_MTCMOS1 = 0,
+	PLAT_SPM_COND_CG_INFRA_0,
+	PLAT_SPM_COND_CG_INFRA_1,
+	PLAT_SPM_COND_CG_INFRA_2,
+	PLAT_SPM_COND_CG_INFRA_3,
+	PLAT_SPM_COND_CG_INFRA_4,
+	PLAT_SPM_COND_CG_INFRA_5,
+	PLAT_SPM_COND_CG_MMSYS_0,
+	PLAT_SPM_COND_CG_MMSYS_1,
+	PLAT_SPM_COND_CG_MMSYS_2,
+	PLAT_SPM_COND_MAX,
+};
+
+enum PLAT_SPM_COND_PLL {
+	PLAT_SPM_COND_PLL_UNIVPLL = 0,
+	PLAT_SPM_COND_PLL_MFGPLL,
+	PLAT_SPM_COND_PLL_MSDCPLL,
+	PLAT_SPM_COND_PLL_TVDPLL,
+	PLAT_SPM_COND_PLL_MMPLL,
+	PLAT_SPM_COND_PLL_MAX,
+};
+
+#define PLL_BIT_MFGPLL	(PLAT_SPM_COND_PLL_MFGPLL)
+#define PLL_BIT_MMPLL	(PLAT_SPM_COND_PLL_MMPLL)
+#define PLL_BIT_UNIVPLL	(PLAT_SPM_COND_PLL_UNIVPLL)
+#define PLL_BIT_MSDCPLL	(PLAT_SPM_COND_PLL_MSDCPLL)
+#define PLL_BIT_TVDPLL	(PLAT_SPM_COND_PLL_TVDPLL)
+
+/* Definition about SPM_COND_CHECK_BLOCKED
+ * bit [00 ~ 15]: cg blocking index
+ * bit [16 ~ 29]: pll blocking index
+ * bit [30]     : pll blocking information
+ * bit [31]	: idle condition check fail
+ */
+#define SPM_COND_BLOCKED_CG_IDX		U(0)
+#define SPM_COND_BLOCKED_PLL_IDX	U(16)
+#define SPM_COND_CHECK_BLOCKED_PLL	BIT(30)
+#define SPM_COND_CHECK_FAIL		BIT(31)
+
+struct mt_spm_cond_tables {
+	char *name;
+	unsigned int table_cg[PLAT_SPM_COND_MAX];
+	unsigned int table_pll;
+	void *priv;
+};
+
+extern unsigned int mt_spm_cond_check(int state_id,
+				      const struct mt_spm_cond_tables *src,
+				      const struct mt_spm_cond_tables *dest,
+				      struct mt_spm_cond_tables *res);
+extern int mt_spm_cond_update(struct mt_resource_constraint **con,
+			      int stateid, void *priv);
+#endif /* MT_SPM_CONDIT_H */

plat/mediatek/mt8192/drivers/spm/mt_spm_conservation.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+
+#include <mt_spm.h>
+#include <mt_spm_conservation.h>
+#include <mt_spm_internal.h>
+#include <mt_spm_reg.h>
+#include <plat_mtk_lpm.h>
+#include <plat_pm.h>
+#include <plat/common/platform.h>
+#include <platform_def.h>
+
+struct wake_status spm_wakesta; /* record last wakesta */
+
+static int go_to_spm_before_wfi(int state_id, unsigned int ext_opand,
+				struct spm_lp_scen *spm_lp,
+				unsigned int resource_req)
+{
+	int ret = 0;
+	struct pwr_ctrl *pwrctrl;
+	uint32_t cpu = plat_my_core_pos();
+
+	pwrctrl = spm_lp->pwrctrl;
+
+	__spm_set_cpu_status(cpu);
+	__spm_set_power_control(pwrctrl);
+	__spm_set_wakeup_event(pwrctrl);
+	__spm_set_pcm_flags(pwrctrl);
+	__spm_src_req_update(pwrctrl, resource_req);
+
+	if ((ext_opand & MT_SPM_EX_OP_SET_WDT) != 0U) {
+		__spm_set_pcm_wdt(1);
+	}
+
+	if ((ext_opand & MT_SPM_EX_OP_SRCLKEN_RC_BBLPM) != 0U) {
+		__spm_xo_soc_bblpm(1);
+	}
+
+	if ((ext_opand & MT_SPM_EX_OP_HW_S1_DETECT) != 0U) {
+		spm_hw_s1_state_monitor_resume();
+	}
+
+	/* Disable auto resume by PCM in system suspend stage */
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		__spm_disable_pcm_timer();
+		__spm_set_pcm_wdt(0);
+	}
+
+	__spm_send_cpu_wakeup_event();
+
+	INFO("cpu%d: wakesrc = 0x%x, settle = 0x%x, sec = %u\n",
+	     cpu, pwrctrl->wake_src, mmio_read_32(SPM_CLK_SETTLE),
+	     mmio_read_32(PCM_TIMER_VAL) / 32768);
+	INFO("sw_flag = 0x%x 0x%x, req = 0x%x, pwr = 0x%x 0x%x\n",
+	     pwrctrl->pcm_flags, pwrctrl->pcm_flags1,
+	     mmio_read_32(SPM_SRC_REQ), mmio_read_32(PWR_STATUS),
+	     mmio_read_32(PWR_STATUS_2ND));
+
+	return ret;
+}
+
+static void go_to_spm_after_wfi(int state_id, unsigned int ext_opand,
+				struct spm_lp_scen *spm_lp,
+				struct wake_status **status)
+{
+	unsigned int ext_status = 0U;
+
+	/* system watchdog will be resumed at kernel stage */
+	if ((ext_opand & MT_SPM_EX_OP_SET_WDT) != 0U) {
+		__spm_set_pcm_wdt(0);
+	}
+
+	if ((ext_opand & MT_SPM_EX_OP_SRCLKEN_RC_BBLPM) != 0U) {
+		__spm_xo_soc_bblpm(0);
+	}
+
+	if ((ext_opand & MT_SPM_EX_OP_HW_S1_DETECT) != 0U) {
+		spm_hw_s1_state_monitor_pause(&ext_status);
+	}
+
+	__spm_ext_int_wakeup_req_clr();
+	__spm_get_wakeup_status(&spm_wakesta, ext_status);
+
+	if (status != NULL) {
+		*status = &spm_wakesta;
+	}
+
+	__spm_clean_after_wakeup();
+
+	if (IS_PLAT_SUSPEND_ID(state_id)) {
+		__spm_output_wake_reason(state_id, &spm_wakesta);
+	}
+}
+
+int spm_conservation(int state_id, unsigned int ext_opand,
+		     struct spm_lp_scen *spm_lp, unsigned int resource_req)
+{
+	if (spm_lp == NULL) {
+		return -1;
+	}
+
+	spm_lock_get();
+	go_to_spm_before_wfi(state_id, ext_opand, spm_lp, resource_req);
+	spm_lock_release();
+
+	return 0;
+}
+
+void spm_conservation_finish(int state_id, unsigned int ext_opand,
+			     struct spm_lp_scen *spm_lp,
+			     struct wake_status **status)
+{
+	spm_lock_get();
+	go_to_spm_after_wfi(state_id, ext_opand, spm_lp, status);
+	spm_lock_release();
+}
+
+int spm_conservation_get_result(struct wake_status **res)
+{
+	if (res == NULL) {
+		return -1;
+	}
+
+	*res = &spm_wakesta;
+
+	return 0;
+}
+
+#define GPIO_BANK	(GPIO_BASE + 0x6F0)
+#define TRAP_UFS_FIRST	BIT(11) /* bit 11, 0: UFS, 1: eMMC */
+
+void spm_conservation_pwrctrl_init(struct pwr_ctrl *pwrctrl)
+{
+	if (pwrctrl == NULL) {
+		return;
+	}
+
+	/* For ufs, emmc storage type */
+	if ((mmio_read_32(GPIO_BANK) & TRAP_UFS_FIRST) != 0U) {
+		/* If eMMC is used, mask UFS req */
+		pwrctrl->reg_ufs_srcclkena_mask_b = 0;
+		pwrctrl->reg_ufs_infra_req_mask_b = 0;
+		pwrctrl->reg_ufs_apsrc_req_mask_b = 0;
+		pwrctrl->reg_ufs_vrf18_req_mask_b = 0;
+		pwrctrl->reg_ufs_ddr_en_mask_b = 0;
+	}
+}

plat/mediatek/mt8192/drivers/spm/mt_spm_conservation.h

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_SPM_CONSERVATION_H
+#define MT_SPM_CONSERVATION_H
+
+#include <mt_spm_internal.h>
+
+extern int spm_conservation(int state_id, unsigned int ext_opand,
+			    struct spm_lp_scen *spm_lp,
+			    unsigned int resource_req);
+extern void spm_conservation_finish(int state_id, unsigned int ext_opand,
+				    struct spm_lp_scen *spm_lp,
+				    struct wake_status **status);
+extern int spm_conservation_get_result(struct wake_status **res);
+extern void spm_conservation_pwrctrl_init(struct pwr_ctrl *pwrctrl);
+#endif /* MT_SPM_CONSERVATION_H */

plat/mediatek/mt8192/drivers/spm/mt_spm_constraint.h

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_SPM_CONSTRAINT_H
+#define MT_SPM_CONSTRAINT_H
+
+#include <mt_lp_rm.h>
+
+#define MT_RM_CONSTRAINT_ALLOW_CPU_BUCK_OFF	(1U << 0)
+#define MT_RM_CONSTRAINT_ALLOW_DRAM_S0		(1U << 1)
+#define MT_RM_CONSTRAINT_ALLOW_DRAM_S1		(1U << 2)
+#define MT_RM_CONSTRAINT_ALLOW_VCORE_LP		(1U << 3)
+#define MT_RM_CONSTRAINT_ALLOW_INFRA_PDN	(1U << 4)
+#define MT_RM_CONSTRAINT_ALLOW_BUS26M_OFF	(1U << 5)
+#define MT_RM_CONSTRAINT_ALLOW_AP_SUSPEND	(1U << 6)
+#define MT_RM_CONSTRAINT_ALLOW_BBLPM		(1U << 7)
+#define MT_RM_CONSTRAINT_ALLOW_XO_UFS		(1U << 8)
+#define MT_RM_CONSTRAINT_ALLOW_GPS_STATE	(1U << 9)
+#define MT_RM_CONSTRAINT_ALLOW_LVTS_STATE	(1U << 10)
+
+#define MT_SPM_RC_INVALID		0x0
+#define MT_SPM_RC_VALID_SW		(1U << 0)
+#define MT_SPM_RC_VALID_FW		(1U << 1)
+#define MT_SPM_RC_VALID_RESIDNECY	(1U << 2)
+#define MT_SPM_RC_VALID_COND_CHECK	(1U << 3)
+#define MT_SPM_RC_VALID_COND_LATCH	(1U << 4)
+#define MT_SPM_RC_VALID_UFS_H8		(1U << 5)
+#define MT_SPM_RC_VALID_FLIGHTMODE	(1U << 6)
+#define MT_SPM_RC_VALID_XSOC_BBLPM	(1U << 7)
+#define MT_SPM_RC_VALID_TRACE_EVENT	(1U << 8)
+
+#define MT_SPM_RC_VALID	(MT_SPM_RC_VALID_SW)
+
+#define IS_MT_RM_RC_READY(status)	\
+	((status & MT_SPM_RC_VALID) == MT_SPM_RC_VALID)
+
+#define MT_SPM_RC_BBLPM_MODE		\
+	(MT_SPM_RC_VALID_UFS_H8 |	\
+	 MT_SPM_RC_VALID_FLIGHTMODE |	\
+	 MT_SPM_RC_VALID_XSOC_BBLPM)
+
+#define IS_MT_SPM_RC_BBLPM_MODE(st)	\
+	((st & (MT_SPM_RC_BBLPM_MODE)) == MT_SPM_RC_BBLPM_MODE)
+
+struct constraint_status {
+	uint16_t id;
+	uint16_t valid;
+	uint32_t cond_block;
+	uint32_t enter_cnt;
+	struct mt_spm_cond_tables *cond_res;
+};
+
+enum MT_SPM_RM_RC_TYPE {
+	MT_RM_CONSTRAINT_ID_BUS26M,
+	MT_RM_CONSTRAINT_ID_SYSPLL,
+	MT_RM_CONSTRAINT_ID_DRAM,
+	MT_RM_CONSTRAINT_ID_CPU_BUCK_LDO,
+	MT_RM_CONSTRAINT_ID_ALL,
+};
+#endif /* MT_SPM_CONSTRAINT_H */

plat/mediatek/mt8192/drivers/spm/mt_spm_idle.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+
+#include <mt_spm.h>
+#include <mt_spm_conservation.h>
+#include <mt_spm_idle.h>
+#include <mt_spm_internal.h>
+#include <mt_spm_reg.h>
+#include <mt_spm_resource_req.h>
+#include <plat_pm.h>
+
+#define __WAKE_SRC_FOR_IDLE_COMMON__	\
+	(R12_PCM_TIMER |		\
+	 R12_KP_IRQ_B |			\
+	 R12_APWDT_EVENT_B |		\
+	 R12_APXGPT1_EVENT_B |		\
+	 R12_CONN2AP_SPM_WAKEUP_B |	\
+	 R12_EINT_EVENT_B |		\
+	 R12_CONN_WDT_IRQ_B |		\
+	 R12_CCIF0_EVENT_B |		\
+	 R12_SSPM2SPM_WAKEUP_B |	\
+	 R12_SCP2SPM_WAKEUP_B |		\
+	 R12_ADSP2SPM_WAKEUP_B |	\
+	 R12_USBX_CDSC_B |		\
+	 R12_USBX_POWERDWN_B |		\
+	 R12_SYS_TIMER_EVENT_B |	\
+	 R12_EINT_EVENT_SECURE_B |	\
+	 R12_CCIF1_EVENT_B |		\
+	 R12_AFE_IRQ_MCU_B |		\
+	 R12_SYS_CIRQ_IRQ_B |		\
+	 R12_MD2AP_PEER_EVENT_B |	\
+	 R12_MD1_WDT_B |		\
+	 R12_CLDMA_EVENT_B |		\
+	 R12_REG_CPU_WAKEUP |		\
+	 R12_APUSYS_WAKE_HOST_B |	\
+	 R12_PCIE_BRIDGE_IRQ |		\
+	 R12_PCIE_IRQ)
+
+#if defined(CFG_MICROTRUST_TEE_SUPPORT)
+#define WAKE_SRC_FOR_IDLE (__WAKE_SRC_FOR_IDLE_COMMON__)
+#else
+#define WAKE_SRC_FOR_IDLE		\
+	(__WAKE_SRC_FOR_IDLE_COMMON__ |	\
+	  R12_SEJ_EVENT_B)
+#endif
+
+static struct pwr_ctrl idle_spm_pwr = {
+	.timer_val = 0x28000,
+	.wake_src = WAKE_SRC_FOR_IDLE,
+
+	/* Auto-gen Start */
+
+	/* SPM_AP_STANDBY_CON */
+	.reg_wfi_op = 0,
+	.reg_wfi_type = 0,
+	.reg_mp0_cputop_idle_mask = 0,
+	.reg_mp1_cputop_idle_mask = 0,
+	.reg_mcusys_idle_mask = 0,
+	.reg_md_apsrc_1_sel = 0,
+	.reg_md_apsrc_0_sel = 0,
+	.reg_conn_apsrc_sel = 0,
+
+	/* SPM_SRC6_MASK */
+	.reg_dpmaif_srcclkena_mask_b = 1,
+	.reg_dpmaif_infra_req_mask_b = 1,
+	.reg_dpmaif_apsrc_req_mask_b = 1,
+	.reg_dpmaif_vrf18_req_mask_b = 1,
+	.reg_dpmaif_ddr_en_mask_b    = 1,
+
+	/* SPM_SRC_REQ */
+	.reg_spm_apsrc_req = 1,
+	.reg_spm_f26m_req = 1,
+	.reg_spm_infra_req = 1,
+	.reg_spm_vrf18_req = 1,
+	.reg_spm_ddr_en_req = 1,
+	.reg_spm_dvfs_req = 0,
+	.reg_spm_sw_mailbox_req = 0,
+	.reg_spm_sspm_mailbox_req = 0,
+	.reg_spm_adsp_mailbox_req = 0,
+	.reg_spm_scp_mailbox_req = 0,
+
+	/* SPM_SRC_MASK */
+	.reg_md_srcclkena_0_mask_b = 1,
+	.reg_md_srcclkena2infra_req_0_mask_b = 0,
+	.reg_md_apsrc2infra_req_0_mask_b = 1,
+	.reg_md_apsrc_req_0_mask_b = 1,
+	.reg_md_vrf18_req_0_mask_b = 1,
+	.reg_md_ddr_en_0_mask_b = 1,
+	.reg_md_srcclkena_1_mask_b = 0,
+	.reg_md_srcclkena2infra_req_1_mask_b = 0,
+	.reg_md_apsrc2infra_req_1_mask_b = 0,
+	.reg_md_apsrc_req_1_mask_b = 0,
+	.reg_md_vrf18_req_1_mask_b = 0,
+	.reg_md_ddr_en_1_mask_b = 0,
+	.reg_conn_srcclkena_mask_b = 1,
+	.reg_conn_srcclkenb_mask_b = 0,
+	.reg_conn_infra_req_mask_b = 1,
+	.reg_conn_apsrc_req_mask_b = 1,
+	.reg_conn_vrf18_req_mask_b = 1,
+	.reg_conn_ddr_en_mask_b = 1,
+	.reg_conn_vfe28_mask_b = 0,
+	.reg_srcclkeni0_srcclkena_mask_b = 1,
+	.reg_srcclkeni0_infra_req_mask_b = 1,
+	.reg_srcclkeni1_srcclkena_mask_b = 0,
+	.reg_srcclkeni1_infra_req_mask_b = 0,
+	.reg_srcclkeni2_srcclkena_mask_b = 0,
+	.reg_srcclkeni2_infra_req_mask_b = 0,
+	.reg_infrasys_apsrc_req_mask_b = 0,
+	.reg_infrasys_ddr_en_mask_b = 1,
+	.reg_md32_srcclkena_mask_b = 1,
+	.reg_md32_infra_req_mask_b = 1,
+	.reg_md32_apsrc_req_mask_b = 1,
+	.reg_md32_vrf18_req_mask_b = 1,
+	.reg_md32_ddr_en_mask_b = 1,
+
+	/* SPM_SRC2_MASK */
+	.reg_scp_srcclkena_mask_b = 1,
+	.reg_scp_infra_req_mask_b = 1,
+	.reg_scp_apsrc_req_mask_b = 1,
+	.reg_scp_vrf18_req_mask_b = 1,
+	.reg_scp_ddr_en_mask_b = 1,
+	.reg_audio_dsp_srcclkena_mask_b = 1,
+	.reg_audio_dsp_infra_req_mask_b = 1,
+	.reg_audio_dsp_apsrc_req_mask_b = 1,
+	.reg_audio_dsp_vrf18_req_mask_b = 1,
+	.reg_audio_dsp_ddr_en_mask_b = 1,
+	.reg_ufs_srcclkena_mask_b = 1,
+	.reg_ufs_infra_req_mask_b = 1,
+	.reg_ufs_apsrc_req_mask_b = 1,
+	.reg_ufs_vrf18_req_mask_b = 1,
+	.reg_ufs_ddr_en_mask_b = 1,
+	.reg_disp0_apsrc_req_mask_b = 1,
+	.reg_disp0_ddr_en_mask_b = 1,
+	.reg_disp1_apsrc_req_mask_b = 1,
+	.reg_disp1_ddr_en_mask_b = 1,
+	.reg_gce_infra_req_mask_b = 1,
+	.reg_gce_apsrc_req_mask_b = 1,
+	.reg_gce_vrf18_req_mask_b = 1,
+	.reg_gce_ddr_en_mask_b = 1,
+	.reg_apu_srcclkena_mask_b = 1,
+	.reg_apu_infra_req_mask_b = 1,
+	.reg_apu_apsrc_req_mask_b = 1,
+	.reg_apu_vrf18_req_mask_b = 1,
+	.reg_apu_ddr_en_mask_b = 1,
+	.reg_cg_check_srcclkena_mask_b = 0,
+	.reg_cg_check_apsrc_req_mask_b = 0,
+	.reg_cg_check_vrf18_req_mask_b = 0,
+	.reg_cg_check_ddr_en_mask_b = 0,
+
+	/* SPM_SRC3_MASK */
+	.reg_dvfsrc_event_trigger_mask_b = 1,
+	.reg_sw2spm_int0_mask_b = 0,
+	.reg_sw2spm_int1_mask_b = 0,
+	.reg_sw2spm_int2_mask_b = 0,
+	.reg_sw2spm_int3_mask_b = 0,
+	.reg_sc_adsp2spm_wakeup_mask_b = 0,
+	.reg_sc_sspm2spm_wakeup_mask_b = 0,
+	.reg_sc_scp2spm_wakeup_mask_b = 0,
+	.reg_csyspwrreq_mask = 1,
+	.reg_spm_srcclkena_reserved_mask_b = 0,
+	.reg_spm_infra_req_reserved_mask_b = 0,
+	.reg_spm_apsrc_req_reserved_mask_b = 0,
+	.reg_spm_vrf18_req_reserved_mask_b = 0,
+	.reg_spm_ddr_en_reserved_mask_b = 0,
+	.reg_mcupm_srcclkena_mask_b = 1,
+	.reg_mcupm_infra_req_mask_b = 1,
+	.reg_mcupm_apsrc_req_mask_b = 1,
+	.reg_mcupm_vrf18_req_mask_b = 1,
+	.reg_mcupm_ddr_en_mask_b = 1,
+	.reg_msdc0_srcclkena_mask_b = 1,
+	.reg_msdc0_infra_req_mask_b = 1,
+	.reg_msdc0_apsrc_req_mask_b = 1,
+	.reg_msdc0_vrf18_req_mask_b = 1,
+	.reg_msdc0_ddr_en_mask_b = 1,
+	.reg_msdc1_srcclkena_mask_b = 1,
+	.reg_msdc1_infra_req_mask_b = 1,
+	.reg_msdc1_apsrc_req_mask_b = 1,
+	.reg_msdc1_vrf18_req_mask_b = 1,
+	.reg_msdc1_ddr_en_mask_b = 1,
+
+	/* SPM_SRC4_MASK */
+	.ccif_event_mask_b = 0xFFF,
+	.reg_bak_psri_srcclkena_mask_b = 0,
+	.reg_bak_psri_infra_req_mask_b = 0,
+	.reg_bak_psri_apsrc_req_mask_b = 0,
+	.reg_bak_psri_vrf18_req_mask_b = 0,
+	.reg_bak_psri_ddr_en_mask_b = 0,
+	.reg_dramc0_md32_infra_req_mask_b = 1,
+	.reg_dramc0_md32_vrf18_req_mask_b = 0,
+	.reg_dramc1_md32_infra_req_mask_b = 1,
+	.reg_dramc1_md32_vrf18_req_mask_b = 0,
+	.reg_conn_srcclkenb2pwrap_mask_b = 0,
+	.reg_dramc0_md32_wakeup_mask = 1,
+	.reg_dramc1_md32_wakeup_mask = 1,
+
+	/* SPM_SRC5_MASK */
+	.reg_mcusys_merge_apsrc_req_mask_b = 0x11,
+	.reg_mcusys_merge_ddr_en_mask_b = 0x11,
+	.reg_msdc2_srcclkena_mask_b = 1,
+	.reg_msdc2_infra_req_mask_b = 1,
+	.reg_msdc2_apsrc_req_mask_b = 1,
+	.reg_msdc2_vrf18_req_mask_b = 1,
+	.reg_msdc2_ddr_en_mask_b = 1,
+	.reg_pcie_srcclkena_mask_b = 1,
+	.reg_pcie_infra_req_mask_b = 1,
+	.reg_pcie_apsrc_req_mask_b = 1,
+	.reg_pcie_vrf18_req_mask_b = 1,
+	.reg_pcie_ddr_en_mask_b = 1,
+
+	/* SPM_WAKEUP_EVENT_MASK */
+	.reg_wakeup_event_mask = 0x01282202,
+
+	/* SPM_WAKEUP_EVENT_EXT_MASK */
+	.reg_ext_wakeup_event_mask = 0xFFFFFFFF,
+
+	/* Auto-gen End */
+};
+
+struct spm_lp_scen idle_spm_lp = {
+	.pwrctrl = &idle_spm_pwr,
+};
+
+int mt_spm_idle_generic_enter(int state_id, unsigned int ext_opand,
+			      spm_idle_conduct fn)
+{
+	unsigned int src_req = 0;
+
+	if (fn != NULL) {
+		fn(&idle_spm_lp, &src_req);
+	}
+
+	return spm_conservation(state_id, ext_opand, &idle_spm_lp, src_req);
+}
+void mt_spm_idle_generic_resume(int state_id, unsigned int ext_opand,
+				struct wake_status **status)
+{
+	spm_conservation_finish(state_id, ext_opand, &idle_spm_lp, status);
+}
+
+void mt_spm_idle_generic_init(void)
+{
+	spm_conservation_pwrctrl_init(idle_spm_lp.pwrctrl);
+}

plat/mediatek/mt8192/drivers/spm/mt_spm_idle.h

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MT_SPM_IDLE_H
+#define MT_SPM_IDLE_H
+
+typedef void (*spm_idle_conduct)(struct spm_lp_scen *spm_lp,
+				 unsigned int *resource_req);
+int mt_spm_idle_generic_enter(int state_id, unsigned int ext_opand,
+			      spm_idle_conduct fn);
+void mt_spm_idle_generic_resume(int state_id, unsigned int ext_opand,
+				struct wake_status **status);
+void mt_spm_idle_generic_init(void);
+#endif /* MT_SPM_IDLE_H */

plat/mediatek/mt8192/drivers/spm/mt_spm_pmic_wrap.c

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <string.h>
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+
+#include <mt_spm.h>
+#include <mt_spm_internal.h>
+#include <mt_spm_pmic_wrap.h>
+#include <mt_spm_reg.h>
+#include <plat_pm.h>
+#include <platform_def.h>
+
+/* PMIC_WRAP MT6359 */
+#define VCORE_BASE_UV		40000
+#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 NR_PMIC_WRAP_CMD	(NR_IDX_ALL)
+#define SPM_DATA_SHIFT		16
+
+#define BUCK_VGPU11_ELR0	0x15B4
+#define TOP_SPI_CON0		0x0456
+#define BUCK_TOP_CON1		0x1443
+#define TOP_CON			0x0013
+#define TOP_DIG_WPK		0x03a9
+#define TOP_CON_LOCK		0x03a8
+#define TOP_CLK_CON0		0x0134
+
+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,    /* invalid setting for init */
+	.addr = { {0UL, 0UL} },
+	.set[PMIC_WRAP_PHASE_ALLINONE] = {
+		._[CMD_0]	= {BUCK_VGPU11_ELR0, VOLT_TO_PMIC_VAL(72500),},
+		._[CMD_1]	= {BUCK_VGPU11_ELR0, VOLT_TO_PMIC_VAL(65000),},
+		._[CMD_2]	= {BUCK_VGPU11_ELR0, VOLT_TO_PMIC_VAL(60000),},
+		._[CMD_3]	= {BUCK_VGPU11_ELR0, VOLT_TO_PMIC_VAL(57500),},
+		._[CMD_4]	= {TOP_SPI_CON0, 0x1,},
+		._[CMD_5]	= {TOP_SPI_CON0, 0x0,},
+		._[CMD_6]	= {BUCK_TOP_CON1, 0x0,},
+		._[CMD_7]	= {BUCK_TOP_CON1, 0xf,},
+		._[CMD_8]	= {TOP_CON, 0x3,},
+		._[CMD_9]	= {TOP_CON, 0x0,},
+		._[CMD_10]	= {TOP_DIG_WPK, 0x63,},
+		._[CMD_11]	= {TOP_CON_LOCK, 0x15,},
+		._[CMD_12]	= {TOP_DIG_WPK, 0x0,},
+		._[CMD_13]	= {TOP_CON_LOCK, 0x0,},
+		._[CMD_14]	= {TOP_CLK_CON0, 0x40,},
+		._[CMD_15]	= {TOP_CLK_CON0, 0x0,},
+		.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,},
+	};
+
+	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 == 0UL) {
+		_mt_spm_pmic_table_init();
+	}
+
+	pw.phase = phase;
+	mmio_write_32(POWERON_CONFIG_EN, SPM_REGWR_CFG_KEY | BCLK_CG_EN_LSB);
+
+	for (idx = 0U; 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);
+
+	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 0UL;
+	}
+
+	if (idx >= pw.set[phase].nr_idx) {
+		return 0UL;
+	}
+
+	return pw.set[phase]._[idx].cmd_wdata;
+}

plat/mediatek/mt8192/drivers/spm/mt_spm_pmic_wrap.h

+/*
+ * Copyright (c) 2020, MediaTek Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/****************************************************************
+ * Auto generated by DE, please DO NOT modify this file directly.
+ *****************************************************************/
+#ifndef MT_SPM_PMIC_WRAP_H
+#define MT_SPM_PMIC_WRAP_H
+
+enum pmic_wrap_phase_id {
+	PMIC_WRAP_PHASE_ALLINONE,
+	NR_PMIC_WRAP_PHASE,
+};
+
+/* IDX mapping, PMIC_WRAP_PHASE_ALLINONE */
+enum {
+	CMD_0,        /* 0x0 */
+	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 */
+	NR_IDX_ALL,
+};
+
+/* APIs */
+extern void mt_spm_pmic_wrap_set_phase(enum pmic_wrap_phase_id phase);
+extern void mt_spm_pmic_wrap_set_cmd(enum pmic_wrap_phase_id phase,
+				     uint32_t idx, uint32_t cmd_wdata);
+extern uint64_t mt_spm_pmic_wrap_get_cmd(enum pmic_wrap_phase_id phase,
+					 uint32_t idx);
+#endif /* MT_SPM_PMIC_WRAP_H */