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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
commit | 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 (patch) | |
tree | bcf648efac40ca6139842707f0eba5a4496a6dd2 /plat/mediatek/drivers/cpu_pm/cpcv3_2 | |
parent | Initial commit. (diff) | |
download | arm-trusted-firmware-102b0d2daa97dae68d3eed54d8fe37a9cc38a892.tar.xz arm-trusted-firmware-102b0d2daa97dae68d3eed54d8fe37a9cc38a892.zip |
Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plat/mediatek/drivers/cpu_pm/cpcv3_2')
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm.c | 466 | ||||
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm.h | 119 | ||||
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_cpc.c | 253 | ||||
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_cpc.h | 100 | ||||
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_mbox.c | 95 | ||||
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_mbox.h | 78 | ||||
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_smp.c | 93 | ||||
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_smp.h | 27 | ||||
-rw-r--r-- | plat/mediatek/drivers/cpu_pm/cpcv3_2/rules.mk | 19 |
9 files changed, 1250 insertions, 0 deletions
diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm.c b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm.c new file mode 100644 index 0000000..313ad47 --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm.c @@ -0,0 +1,466 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <assert.h> +#include <stdint.h> + +#include <lib/spinlock.h> + +#include <lib/mtk_init/mtk_init.h> +#include <lib/pm/mtk_pm.h> +#include "mt_cpu_pm.h" +#include "mt_cpu_pm_cpc.h" +#include "mt_cpu_pm_mbox.h" +#include <mt_lp_rm.h> +#include "mt_smp.h" +#include <mtk_mmap_pool.h> +#include <platform_def.h> + +/* + * The locker must use the bakery locker when cache turns off. + * Using spin_lock will gain better performance. + */ +#ifdef MT_CPU_PM_USING_BAKERY_LOCK +DEFINE_BAKERY_LOCK(mt_cpu_pm_lock); +#define plat_cpu_pm_lock_init() bakery_lock_init(&mt_cpu_pm_lock) +#define plat_cpu_pm_lock() bakery_lock_get(&mt_cpu_pm_lock) +#define plat_cpu_pm_unlock() bakery_lock_release(&mt_cpu_pm_lock) +#else +spinlock_t mt_cpu_pm_lock; +#define plat_cpu_pm_lock_init() +#define plat_cpu_pm_lock() spin_lock(&mt_cpu_pm_lock) +#define plat_cpu_pm_unlock() spin_unlock(&mt_cpu_pm_lock) +#endif + +enum mt_pwr_node { + MT_PWR_NONMCUSYS = 0, + MT_PWR_MCUSYS_PDN, + MT_PWR_SUSPEND, + MT_PWR_SYSTEM_MEM, + MT_PWR_SYSTEM_PLL, + MT_PWR_SYSTEM_BUS, + MT_PWR_MAX, +}; + +#define CPU_PM_DEPD_INIT BIT(0) +#define CPU_PM_DEPD_READY BIT(1) +#define CPU_PM_PLAT_READY BIT(2) + +#ifdef CPU_PM_TINYSYS_SUPPORT +#define CPU_PM_INIT_READY (CPU_PM_DEPD_INIT | CPU_PM_DEPD_READY) +#define CPU_PM_LP_READY (CPU_PM_INIT_READY | CPU_PM_PLAT_READY) +#else +#define CPU_PM_LP_READY (CPU_PM_PLAT_READY) +#endif + +#if CONFIG_MTK_PM_SUPPORT + +#if CONFIG_MTK_CPU_SUSPEND_EN || CONFIG_MTK_SMP_EN +static void cpupm_cpu_resume_common(const struct mtk_cpupm_pwrstate *state) +{ + CPU_PM_ASSERT(state != NULL); + mtk_cpc_core_on_hint_clr(state->info.cpuid); +} +#endif + +#if CONFIG_MTK_SMP_EN +static int cpupm_cpu_pwr_on_prepare(unsigned int cpu, uintptr_t entry) +{ + struct cpu_pwr_ctrl pwr_ctrl; + + PER_CPU_PWR_CTRL(pwr_ctrl, cpu); + mt_smp_core_bootup_address_set(&pwr_ctrl, entry); + mt_smp_core_init_arch(0, cpu, 1, &pwr_ctrl); + + return mt_smp_power_core_on(cpu, &pwr_ctrl); +} + +static void cpupm_cpu_resume_smp(const struct mtk_cpupm_pwrstate *state) +{ + CPU_PM_ASSERT(state != NULL); + + plat_cpu_pm_lock(); + mmio_clrbits_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, + GIC_WAKEUP_IGNORE(state->info.cpuid)); + plat_cpu_pm_unlock(); + cpupm_cpu_resume_common(state); +} + +static void cpupm_cpu_suspend_smp(const struct mtk_cpupm_pwrstate *state) +{ + struct cpu_pwr_ctrl pwr_ctrl; + + CPU_PM_ASSERT(state != NULL); + + PER_CPU_PWR_CTRL(pwr_ctrl, state->info.cpuid); + mt_smp_power_core_off(&pwr_ctrl); + mmio_setbits_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, + GIC_WAKEUP_IGNORE(state->info.cpuid)); +} + +static void cpupm_smp_init(unsigned int cpu, uintptr_t sec_entrypoint) +{ + unsigned int reg; + struct mtk_cpupm_pwrstate state = { + .info = { + .cpuid = cpu, + .mode = MTK_CPU_PM_SMP, + }, + .pwr = { + .afflv = 0, + .state_id = 0, + }, + }; + + reg = mmio_read_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG); + if ((reg & CPC_MCUSYS_CPC_RESET_PWR_ON_EN) != 0) { + INFO("[%s:%d][CPU_PM] reset pwr on is enabled then clear it!\n", + __func__, __LINE__); + mmio_clrbits_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, CPC_MCUSYS_CPC_RESET_PWR_ON_EN); + } + + cpupm_cpu_pwr_on_prepare(cpu, sec_entrypoint); + cpupm_cpu_resume_smp(&state); +} + +static struct mtk_cpu_smp_ops cpcv3_2_cpu_smp = { + .init = cpupm_smp_init, + .cpu_pwr_on_prepare = cpupm_cpu_pwr_on_prepare, + .cpu_on = cpupm_cpu_resume_smp, + .cpu_off = cpupm_cpu_suspend_smp, +}; + +#endif /* CONFIG_MTK_SMP_EN */ + +#if CONFIG_MTK_CPU_SUSPEND_EN +#define CPUPM_READY_MS (40000) +#define CPUPM_ARCH_TIME_MS(ms) (ms * 1000 * SYS_COUNTER_FREQ_IN_MHZ) +#define CPUPM_BOOTUP_TIME_THR CPUPM_ARCH_TIME_MS(CPUPM_READY_MS) + +static int mt_pwr_nodes[MT_PWR_MAX]; +static int plat_mt_lp_cpu_rc; +static unsigned int cpu_pm_status; +static unsigned int plat_prev_stateid; + +static int mcusys_prepare_suspend(const struct mtk_cpupm_pwrstate *state) +{ + unsigned int stateid = state->pwr.state_id; + + if (mtk_cpc_mcusys_off_prepare() != CPC_SUCCESS) { + goto mt_pwr_mcusysoff_break; + } + + if (!IS_PLAT_SUSPEND_ID(stateid)) { + if (mt_pwr_nodes[MT_PWR_SYSTEM_MEM] != 0) { + stateid = MT_PLAT_PWR_STATE_SYSTEM_MEM; + } else if (mt_pwr_nodes[MT_PWR_SYSTEM_PLL] != 0) { + stateid = MT_PLAT_PWR_STATE_SYSTEM_PLL; + } else if (mt_pwr_nodes[MT_PWR_SYSTEM_BUS] != 0) { + stateid = MT_PLAT_PWR_STATE_SYSTEM_BUS; + } else if (mt_pwr_nodes[MT_PWR_SUSPEND] != 0) { + stateid = MT_PLAT_PWR_STATE_SUSPEND; + } else { + stateid = MT_PLAT_PWR_STATE_MCUSYS; + } + } + + plat_prev_stateid = stateid; + plat_mt_lp_cpu_rc = mt_lp_rm_find_and_run_constraint(0, state->info.cpuid, stateid, NULL); + + if (plat_mt_lp_cpu_rc < 0) { + goto mt_pwr_mcusysoff_reflect; + } + +#ifdef CPU_PM_TINYSYS_SUPPORT + mtk_set_cpu_pm_preffered_cpu(state->info.cpuid); +#endif + return MTK_CPUPM_E_OK; + +mt_pwr_mcusysoff_reflect: + mtk_cpc_mcusys_off_reflect(); +mt_pwr_mcusysoff_break: + plat_mt_lp_cpu_rc = -1; + + return MTK_CPUPM_E_FAIL; +} + +static int mcusys_prepare_resume(const struct mtk_cpupm_pwrstate *state) +{ + if (plat_mt_lp_cpu_rc < 0) { + return MTK_CPUPM_E_FAIL; + } + + mt_lp_rm_reset_constraint(plat_mt_lp_cpu_rc, state->info.cpuid, plat_prev_stateid); + mtk_cpc_mcusys_off_reflect(); + return MTK_CPUPM_E_OK; +} + +static unsigned int cpupm_do_pstate_off(const mtk_pstate_type psci_state, + const struct mtk_cpupm_pwrstate *state) +{ + unsigned int pstate = MT_CPUPM_PWR_DOMAIN_CORE; + + if (!state || (state->pwr.afflv > PLAT_MAX_PWR_LVL)) { + CPU_PM_ASSERT(0); + } + + switch (state->pwr.state_id) { + case MT_PLAT_PWR_STATE_SYSTEM_MEM: + mt_pwr_nodes[MT_PWR_SYSTEM_MEM] += 1; + break; + case MT_PLAT_PWR_STATE_SYSTEM_PLL: + mt_pwr_nodes[MT_PWR_SYSTEM_PLL] += 1; + break; + case MT_PLAT_PWR_STATE_SYSTEM_BUS: + mt_pwr_nodes[MT_PWR_SYSTEM_BUS] += 1; + break; + case MT_PLAT_PWR_STATE_SUSPEND: + mt_pwr_nodes[MT_PWR_SUSPEND] += 1; + break; + default: + if (!IS_MT_PLAT_PWR_STATE_MCUSYS(state->pwr.state_id) && + !IS_PLAT_SYSTEM_SUSPEND(state->pwr.afflv)) { + plat_cpu_pm_lock(); + mt_pwr_nodes[MT_PWR_NONMCUSYS] += 1; + flush_dcache_range((uintptr_t)&mt_pwr_nodes[MT_PWR_NONMCUSYS], + sizeof(mt_pwr_nodes[MT_PWR_NONMCUSYS])); + plat_cpu_pm_unlock(); + } + break; + } + + if ((mt_pwr_nodes[MT_PWR_NONMCUSYS] == 0) && IS_PLAT_MCUSYSOFF_AFFLV(state->pwr.afflv)) { + /* Prepare to power down mcusys */ + if (mcusys_prepare_suspend(state) == MTK_CPUPM_E_OK) { + mt_pwr_nodes[MT_PWR_MCUSYS_PDN] += 1; + flush_dcache_range((uintptr_t)&mt_pwr_nodes[MT_PWR_MCUSYS_PDN], + sizeof(mt_pwr_nodes[MT_PWR_MCUSYS_PDN])); + pstate |= (MT_CPUPM_PWR_DOMAIN_MCUSYS | MT_CPUPM_PWR_DOMAIN_CLUSTER); + } + } + + if (state->pwr.afflv >= PLAT_MT_CPU_SUSPEND_CLUSTER) { + pstate |= MT_CPUPM_PWR_DOMAIN_CLUSTER; + } + + if (psci_get_pstate_pwrlvl(psci_state) >= PLAT_MT_CPU_SUSPEND_CLUSTER) { + pstate |= MT_CPUPM_PWR_DOMAIN_PERCORE_DSU; + } + + return pstate; +} + +static unsigned int cpupm_do_pstate_on(const mtk_pstate_type psci_state, + const struct mtk_cpupm_pwrstate *state) +{ + unsigned int pstate = MT_CPUPM_PWR_DOMAIN_CORE; + + CPU_PM_ASSERT(state != NULL); + + if (state->pwr.afflv > PLAT_MAX_PWR_LVL) { + CPU_PM_ASSERT(0); + } + + if (mt_pwr_nodes[MT_PWR_MCUSYS_PDN] != 0) { + mt_pwr_nodes[MT_PWR_MCUSYS_PDN] = 0; + flush_dcache_range((uintptr_t)&mt_pwr_nodes[MT_PWR_MCUSYS_PDN], + sizeof(mt_pwr_nodes[MT_PWR_MCUSYS_PDN])); + pstate |= (MT_CPUPM_PWR_DOMAIN_MCUSYS | MT_CPUPM_PWR_DOMAIN_CLUSTER); + mcusys_prepare_resume(state); + } + + if (state->pwr.afflv >= PLAT_MT_CPU_SUSPEND_CLUSTER) { + pstate |= MT_CPUPM_PWR_DOMAIN_CLUSTER; + } + + switch (state->pwr.state_id) { + case MT_PLAT_PWR_STATE_SYSTEM_MEM: + mt_pwr_nodes[MT_PWR_SYSTEM_MEM] -= 1; + CPU_PM_ASSERT(mt_pwr_nodes[MT_PWR_SYSTEM_MEM] >= 0); + break; + case MT_PLAT_PWR_STATE_SYSTEM_PLL: + mt_pwr_nodes[MT_PWR_SYSTEM_PLL] -= 1; + CPU_PM_ASSERT(mt_pwr_nodes[MT_PWR_SYSTEM_PLL] >= 0); + break; + case MT_PLAT_PWR_STATE_SYSTEM_BUS: + mt_pwr_nodes[MT_PWR_SYSTEM_BUS] -= 1; + CPU_PM_ASSERT(mt_pwr_nodes[MT_PWR_SYSTEM_BUS] >= 0); + break; + case MT_PLAT_PWR_STATE_SUSPEND: + mt_pwr_nodes[MT_PWR_SUSPEND] -= 1; + CPU_PM_ASSERT(mt_pwr_nodes[MT_PWR_SUSPEND] >= 0); + break; + default: + if (!IS_MT_PLAT_PWR_STATE_MCUSYS(state->pwr.state_id) && + !IS_PLAT_SYSTEM_SUSPEND(state->pwr.afflv)) { + plat_cpu_pm_lock(); + mt_pwr_nodes[MT_PWR_NONMCUSYS] -= 1; + flush_dcache_range((uintptr_t)&mt_pwr_nodes[MT_PWR_NONMCUSYS], + sizeof(mt_pwr_nodes[MT_PWR_NONMCUSYS])); + plat_cpu_pm_unlock(); + } + break; + } + + if (IS_PLAT_SYSTEM_SUSPEND(state->pwr.afflv) || + (IS_PLAT_SYSTEM_RETENTION(state->pwr.afflv) && (mt_pwr_nodes[MT_PWR_SUSPEND] > 0))) { + mtk_cpc_time_sync(); + } + + if (mt_pwr_nodes[MT_PWR_NONMCUSYS] < 0) { + CPU_PM_ASSERT(0); + } + + pstate |= MT_CPUPM_PWR_DOMAIN_PERCORE_DSU; + + return pstate; +} + +static void cpupm_cpu_resume(const struct mtk_cpupm_pwrstate *state) +{ + cpupm_cpu_resume_common(state); +} + +static void cpupm_mcusys_resume(const struct mtk_cpupm_pwrstate *state) +{ + assert(state != NULL); +} + +static void cpupm_mcusys_suspend(const struct mtk_cpupm_pwrstate *state) +{ + assert(state != NULL); +} + +static unsigned int cpupm_get_pstate(enum mt_cpupm_pwr_domain domain, + const mtk_pstate_type psci_state, + const struct mtk_cpupm_pwrstate *state) +{ + unsigned int pstate = 0; + + if (state == NULL) { + return 0; + } + + if (state->info.mode == MTK_CPU_PM_SMP) { + pstate = MT_CPUPM_PWR_DOMAIN_CORE; + } else { + if (domain == CPUPM_PWR_OFF) { + pstate = cpupm_do_pstate_off(psci_state, state); + } else if (domain == CPUPM_PWR_ON) { + pstate = cpupm_do_pstate_on(psci_state, state); + } else { + INFO("[%s:%d][CPU_PM] unknown pwr domain :%d\n", + __func__, __LINE__, domain); + assert(0); + } + } + return pstate; +} + +static int cpupm_init(void) +{ + int ret = MTK_CPUPM_E_OK; + +#ifdef CPU_PM_TINYSYS_SUPPORT + int status; + + if ((cpu_pm_status & CPU_PM_INIT_READY) == CPU_PM_INIT_READY) { + return MTK_CPUPM_E_OK; + } + + if (!(cpu_pm_status & CPU_PM_DEPD_INIT)) { + status = mtk_lp_depd_condition(CPUPM_MBOX_WAIT_DEV_INIT); + if (status == 0) { + plat_cpu_pm_lock(); + cpu_pm_status |= CPU_PM_DEPD_INIT; + plat_cpu_pm_unlock(); + } + } + + if ((cpu_pm_status & CPU_PM_DEPD_INIT) && !(cpu_pm_status & CPU_PM_DEPD_READY)) { + status = mtk_lp_depd_condition(CPUPM_MBOX_WAIT_TASK_READY); + if (status == 0) { + plat_cpu_pm_lock(); + cpu_pm_status |= CPU_PM_DEPD_READY; + plat_cpu_pm_unlock(); + } + } + + ret = ((cpu_pm_status & CPU_PM_INIT_READY) == CPU_PM_INIT_READY) ? + MTK_CPUPM_E_OK : MTK_CPUPM_E_FAIL; +#endif + return ret; +} + +static int cpupm_pwr_state_valid(unsigned int afflv, unsigned int state) +{ + if (cpu_pm_status == CPU_PM_LP_READY) { + return MTK_CPUPM_E_OK; + } + + if (cpupm_init() != MTK_CPUPM_E_OK) { + return MTK_CPUPM_E_FAIL; + } + + if (read_cntpct_el0() >= (uint64_t)CPUPM_BOOTUP_TIME_THR) { + plat_cpu_pm_lock(); + cpu_pm_status |= CPU_PM_PLAT_READY; + plat_cpu_pm_unlock(); + } + + if (!IS_PLAT_SYSTEM_SUSPEND(afflv) && (cpu_pm_status & CPU_PM_PLAT_READY) == 0) { + return MTK_CPUPM_E_FAIL; + } + + return MTK_CPUPM_E_OK; +} + +static struct mtk_cpu_pm_ops cpcv3_2_mcdi = { + .get_pstate = cpupm_get_pstate, + .pwr_state_valid = cpupm_pwr_state_valid, + .cpu_resume = cpupm_cpu_resume, + .mcusys_suspend = cpupm_mcusys_suspend, + .mcusys_resume = cpupm_mcusys_resume, +}; +#endif /* CONFIG_MTK_CPU_SUSPEND_EN */ + +#endif /* CONFIG_MTK_PM_SUPPORT */ + +/* + * Depend on mtk pm methodology, the psci op init must + * be invoked after cpu pm to avoid initialization fail. + */ +int mt_plat_cpu_pm_init(void) +{ + plat_cpu_pm_lock_init(); + + mtk_cpc_init(); +#if CONFIG_MTK_PM_SUPPORT + +#if CONFIG_MTK_CPU_SUSPEND_EN + register_cpu_pm_ops(CPU_PM_FN, &cpcv3_2_mcdi); +#endif /* CONFIG_MTK_CPU_SUSPEND_EN */ + +#if CONFIG_MTK_SMP_EN + register_cpu_smp_ops(CPU_PM_FN, &cpcv3_2_cpu_smp); +#endif /* CONFIG_MTK_SMP_EN */ + +#endif /* CONFIG_MTK_PM_SUPPORT */ + + INFO("[%s:%d] - CPU PM INIT finished\n", __func__, __LINE__); + return 0; +} +MTK_ARCH_INIT(mt_plat_cpu_pm_init); + +static const mmap_region_t cpu_pm_mmap[] MTK_MMAP_SECTION = { +#ifdef CPU_PM_TINYSYS_SUPPORT +#if CONFIG_MTK_PM_SUPPORT && CONFIG_MTK_CPU_SUSPEND_EN + MAP_REGION_FLAT(CPU_EB_TCM_BASE, CPU_EB_TCM_SIZE, MT_DEVICE | MT_RW | MT_SECURE), +#endif +#endif + {0} +}; +DECLARE_MTK_MMAP_REGIONS(cpu_pm_mmap); diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm.h b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm.h new file mode 100644 index 0000000..4d99df1 --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm.h @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MT_CPU_PM_H +#define MT_CPU_PM_H + +#include <assert.h> +#include <mcucfg.h> +#include <platform_def.h> + +/* + * After ARM v8.2, the cache will turn off automatically when powering down CPU. Therefore, there + * is no doubt to use the spin_lock here. + */ +#if !HW_ASSISTED_COHERENCY +#define MT_CPU_PM_USING_BAKERY_LOCK +#endif + +#define CPU_PM_FN (MTK_CPUPM_FN_CPUPM_GET_PWR_STATE | \ + MTK_CPUPM_FN_PWR_STATE_VALID | \ + MTK_CPUPM_FN_PWR_ON_CORE_PREPARE | \ + MTK_CPUPM_FN_RESUME_CORE | \ + MTK_CPUPM_FN_SUSPEND_MCUSYS | \ + MTK_CPUPM_FN_RESUME_MCUSYS | \ + MTK_CPUPM_FN_SMP_INIT | \ + MTK_CPUPM_FN_SMP_CORE_ON | \ + MTK_CPUPM_FN_SMP_CORE_OFF) + +#define CPU_PM_ASSERT(_cond) ({ \ + if (!(_cond)) { \ + INFO("[%s:%d] - %s\n", __func__, __LINE__, #_cond); \ + panic(); \ + } }) + +#define CPC_PWR_MASK_MCUSYS_MP0 (0xC001) + +#define PER_CPU_PWR_DATA(ctrl, cluster, core) \ + do { \ + ctrl.rvbaraddr_l = CORE_RVBRADDR_##cluster##_##core##_L; \ + ctrl.arch_addr = MCUCFG_MP0_CLUSTER_CFG5; \ + ctrl.pwpr = SPM_MP##cluster##_CPU##core##_PWR_CON; \ + } while (0) + +#define PER_CPU_PWR_CTRL(ctrl, cpu) ({ \ + switch (cpu) { \ + case 0: \ + PER_CPU_PWR_DATA(ctrl, 0, 0); \ + break; \ + case 1: \ + PER_CPU_PWR_DATA(ctrl, 0, 1); \ + break; \ + case 2: \ + PER_CPU_PWR_DATA(ctrl, 0, 2); \ + break; \ + case 3: \ + PER_CPU_PWR_DATA(ctrl, 0, 3); \ + break; \ + case 4: \ + PER_CPU_PWR_DATA(ctrl, 0, 4); \ + break; \ + case 5: \ + PER_CPU_PWR_DATA(ctrl, 0, 5); \ + break; \ + case 6: \ + PER_CPU_PWR_DATA(ctrl, 0, 6); \ + break; \ + case 7: \ + PER_CPU_PWR_DATA(ctrl, 0, 7); \ + break; \ + default: \ + assert(0); \ + break; \ + } }) + + +/* MCUSYS DREQ BIG VPROC ISO control */ +#define DREQ20_BIG_VPROC_ISO (MCUCFG_BASE + 0xad8c) + +/* Definition about bootup address for each core CORE_RVBRADDR_clusterid_cpuid */ +#define CORE_RVBRADDR_0_0_L (MCUCFG_BASE + 0xc900) +#define CORE_RVBRADDR_0_1_L (MCUCFG_BASE + 0xc908) +#define CORE_RVBRADDR_0_2_L (MCUCFG_BASE + 0xc910) +#define CORE_RVBRADDR_0_3_L (MCUCFG_BASE + 0xc918) +#define CORE_RVBRADDR_0_4_L (MCUCFG_BASE + 0xc920) +#define CORE_RVBRADDR_0_5_L (MCUCFG_BASE + 0xc928) +#define CORE_RVBRADDR_0_6_L (MCUCFG_BASE + 0xc930) +#define CORE_RVBRADDR_0_7_L (MCUCFG_BASE + 0xc938) +#define MCUCFG_MP0_CLUSTER_CFG5 (MCUCFG_BASE + 0xc8e4) + +struct cpu_pwr_ctrl { + unsigned int rvbaraddr_l; + unsigned int arch_addr; + unsigned int pwpr; +}; + +#define MCUSYS_STATUS_PDN BIT(0) +#define MCUSYS_STATUS_CPUSYS_PROTECT BIT(8) +#define MCUSYS_STATUS_MCUSYS_PROTECT BIT(9) + +/* cpu_pm function ID */ +enum mt_cpu_pm_user_id { + MCUSYS_STATUS, + CPC_COMMAND, +}; + +/* cpu_pm lp function ID */ +enum mt_cpu_pm_lp_smc_id { + LP_CPC_COMMAND, + IRQS_REMAIN_ALLOC, + IRQS_REMAIN_CTRL, + IRQS_REMAIN_IRQ, + IRQS_REMAIN_WAKEUP_CAT, + IRQS_REMAIN_WAKEUP_SRC, +}; + +#endif /* MT_CPU_PM_H */ diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_cpc.c b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_cpc.c new file mode 100644 index 0000000..4cc2203 --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_cpc.c @@ -0,0 +1,253 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <string.h> + +#include <drivers/delay_timer.h> + +#include "mt_cpu_pm.h" +#include "mt_cpu_pm_cpc.h" +#include "mt_smp.h" +#include <mt_timer.h> + +struct mtk_cpc_dev { + int auto_off; + unsigned int auto_thres_tick; +}; + +static struct mtk_cpc_dev cpc; + +static int mtk_cpc_last_core_prot(int prot_req, int resp_reg, int resp_ofs) +{ + unsigned int staus; + unsigned int retry = 0; + + while (retry < RETRY_CNT_MAX) { + retry++; + + mmio_write_32(CPC_MCUSYS_LAST_CORE_REQ, prot_req); + + udelay(1); + + staus = (mmio_read_32(resp_reg) >> resp_ofs) & CPC_PROT_RESP_MASK; + + if (staus == PROT_SUCCESS) { + return CPC_SUCCESS; + } else if (staus == PROT_GIVEUP) { + return CPC_ERR_FAIL; + } + } + + return CPC_ERR_TIMEOUT; +} + +static int mtk_cpu_pm_mcusys_prot_aquire(void) +{ + return mtk_cpc_last_core_prot(MCUSYS_PROT_SET, CPC_MCUSYS_LAST_CORE_RESP, MCUSYS_RESP_OFS); +} + +static void mtk_cpu_pm_mcusys_prot_release(void) +{ + mmio_write_32(CPC_MCUSYS_PWR_ON_MASK, MCUSYS_PROT_CLR); +} + +int mtk_cpu_pm_cluster_prot_aquire(void) +{ + return mtk_cpc_last_core_prot(CPUSYS_PROT_SET, CPC_MCUSYS_MP_LAST_CORE_RESP, + CPUSYS_RESP_OFS); +} + +void mtk_cpu_pm_cluster_prot_release(void) +{ + mmio_write_32(CPC_MCUSYS_PWR_ON_MASK, CPUSYS_PROT_CLR); +} + +static void mtk_cpc_cluster_cnt_backup(void) +{ + /* single cluster */ + uint32_t backup_cnt = mmio_read_32(CPC_CLUSTER_CNT_BACKUP); + uint32_t curr_cnt = mmio_read_32(CPC_MCUSYS_CLUSTER_COUNTER); + + if ((curr_cnt & 0x7fff) == 0) { + curr_cnt = (curr_cnt >> 16) & 0x7fff; + } else { + curr_cnt = curr_cnt & 0x7fff; + } + + mmio_write_32(CPC_CLUSTER_CNT_BACKUP, backup_cnt + curr_cnt); + mmio_write_32(CPC_MCUSYS_CLUSTER_COUNTER_CLR, 0x3); +} + +static inline void mtk_cpc_mcusys_off_enable(bool enable) +{ + mmio_write_32(CPC_MCUSYS_PWR_CTRL, enable ? 1 : 0); +} + +void mtk_cpc_mcusys_off_reflect(void) +{ + mtk_cpc_mcusys_off_enable(false); + mtk_cpu_pm_mcusys_prot_release(); +} + +int mtk_cpc_mcusys_off_prepare(void) +{ + if (mtk_cpu_pm_mcusys_prot_aquire() != CPC_SUCCESS) { + return CPC_ERR_FAIL; + } + + mtk_cpc_cluster_cnt_backup(); + mtk_cpc_mcusys_off_enable(true); + + return CPC_SUCCESS; +} + +void mtk_cpc_core_on_hint_set(int cpu) +{ + mmio_write_32(CPC_MCUSYS_CPU_ON_SW_HINT_SET, BIT(cpu)); +} + +void mtk_cpc_core_on_hint_clr(int cpu) +{ + mmio_write_32(CPC_MCUSYS_CPU_ON_SW_HINT_CLR, BIT(cpu)); +} + +static void mtk_cpc_dump_timestamp(void) +{ + unsigned int id; + + for (id = 0; id < CPC_TRACE_ID_NUM; id++) { + mmio_write_32(CPC_MCUSYS_TRACE_SEL, id); + + memcpy((void *)(uintptr_t)CPC_TRACE_SRAM(id), + (const void *)(uintptr_t)CPC_MCUSYS_TRACE_DATA, + CPC_TRACE_SIZE); + } +} + +void mtk_cpc_time_sync(void) +{ + uint64_t kt; + uint32_t systime_l, systime_h; + + kt = sched_clock(); + systime_l = mmio_read_32(CNTSYS_L_REG); + systime_h = mmio_read_32(CNTSYS_H_REG); + + /* sync kernel timer to cpc */ + mmio_write_32(CPC_MCUSYS_CPC_KERNEL_TIME_L_BASE, (uint32_t)kt); + mmio_write_32(CPC_MCUSYS_CPC_KERNEL_TIME_H_BASE, (uint32_t)(kt >> 32)); + + /* sync system timer to cpc */ + mmio_write_32(CPC_MCUSYS_CPC_SYSTEM_TIME_L_BASE, systime_l); + mmio_write_32(CPC_MCUSYS_CPC_SYSTEM_TIME_H_BASE, systime_h); +} + +static void mtk_cpc_config(unsigned int cfg, unsigned int data) +{ + switch (cfg) { + case CPC_SMC_CONFIG_PROF: + if (data) { + mmio_setbits_32(CPC_MCUSYS_CPC_DBG_SETTING, CPC_PROF_EN); + } else { + mmio_clrbits_32(CPC_MCUSYS_CPC_DBG_SETTING, CPC_PROF_EN); + } + break; + case CPC_SMC_CONFIG_AUTO_OFF: + if (data) { + mmio_setbits_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, CPC_AUTO_OFF_EN); + cpc.auto_off = 1; + } else { + mmio_setbits_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, CPC_AUTO_OFF_EN); + cpc.auto_off = 0; + } + break; + case CPC_SMC_CONFIG_AUTO_OFF_THRES: + cpc.auto_thres_tick = US_TO_TICKS(data); + mmio_write_32(CPC_MCUSYS_CPC_OFF_THRES, cpc.auto_thres_tick); + break; + case CPC_SMC_CONFIG_CNT_CLR: + mmio_write_32(CPC_MCUSYS_CLUSTER_COUNTER_CLR, 0x3); + break; + case CPC_SMC_CONFIG_TIME_SYNC: + mtk_cpc_time_sync(); + break; + default: + break; + } +} + +static unsigned int mtk_cpc_read_config(unsigned int cfg) +{ + unsigned int res = 0; + + switch (cfg) { + case CPC_SMC_CONFIG_PROF: + res = (mmio_read_32(CPC_MCUSYS_CPC_DBG_SETTING) & CPC_PROF_EN) ? 1 : 0; + break; + case CPC_SMC_CONFIG_AUTO_OFF: + res = cpc.auto_off; + break; + case CPC_SMC_CONFIG_AUTO_OFF_THRES: + res = TICKS_TO_US(cpc.auto_thres_tick); + break; + case CPC_SMC_CONFIG_CNT_CLR: + default: + break; + } + + return res; +} + +uint64_t mtk_cpc_handler(uint64_t act, uint64_t arg1, uint64_t arg2) +{ + uint64_t res = 0; + + switch (act) { + case CPC_SMC_EVENT_CPC_CONFIG: + mtk_cpc_config((unsigned int)arg1, (unsigned int)arg2); + break; + case CPC_SMC_EVENT_READ_CONFIG: + res = mtk_cpc_read_config((unsigned int)arg1); + break; + case CPC_SMC_EVENT_GIC_DPG_SET: + /* isolated_status = x2; */ + default: + break; + } + + return res; +} + +uint64_t mtk_cpc_trace_dump(uint64_t act, uint64_t arg1, uint64_t arg2) +{ + switch (act) { + case CPC_SMC_EVENT_DUMP_TRACE_DATA: + mtk_cpc_dump_timestamp(); + break; + default: + break; + } + + return 0; +} + +void mtk_cpc_init(void) +{ +#if CONFIG_MTK_SMP_EN + mt_smp_init(); +#endif + mmio_setbits_32(CPC_MCUSYS_CPC_DBG_SETTING, (CPC_DBG_EN | CPC_CALC_EN)); + + cpc.auto_off = 1; + mmio_setbits_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, (CPC_OFF_PRE_EN | + ((cpc.auto_off > 0) ? CPC_AUTO_OFF_EN : 0))); + + mtk_cpc_config(CPC_SMC_CONFIG_AUTO_OFF_THRES, 8000); + + /* enable CPC */ + mmio_setbits_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, CPC_CTRL_ENABLE); + mmio_setbits_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, SSPM_CORE_PWR_ON_EN); +} diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_cpc.h b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_cpc.h new file mode 100644 index 0000000..3004f41 --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_cpc.h @@ -0,0 +1,100 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MT_CPU_PM_CPC_H +#define MT_CPU_PM_CPC_H + +#include <lib/mmio.h> + +#include <mcucfg.h> +#include <platform_def.h> + +#define NEED_CPUSYS_PROT_WORKAROUND (1) + +/* system sram registers */ +#define CPUIDLE_SRAM_REG(r) (CPU_IDLE_SRAM_BASE + (r)) + +/* db dump */ +#define CPC_TRACE_SIZE (0x20) +#define CPC_TRACE_ID_NUM (10) +#define CPC_TRACE_SRAM(id) (CPUIDLE_SRAM_REG(0x10) + (id) * CPC_TRACE_SIZE) + +/* buckup off count */ +#define CPC_CLUSTER_CNT_BACKUP CPUIDLE_SRAM_REG(0x1f0) +#define CPC_MCUSYS_CNT CPUIDLE_SRAM_REG(0x1f4) + +/* CPC_MCUSYS_CPC_FLOW_CTRL_CFG (0xA814): debug setting */ +#define CPC_PWR_ON_SEQ_DIS BIT(1) +#define CPC_PWR_ON_PRIORITY BIT(2) +#define CPC_AUTO_OFF_EN BIT(5) +#define CPC_DORMANT_WAIT_EN BIT(14) +#define CPC_CTRL_EN BIT(16) +#define CPC_OFF_PRE_EN BIT(29) + +/* CPC_MCUSYS_LAST_CORE_REQ (0xA818) : last core protection */ +#define CPUSYS_PROT_SET BIT(0) +#define MCUSYS_PROT_SET BIT(8) +#define CPUSYS_PROT_CLR BIT(8) +#define MCUSYS_PROT_CLR BIT(9) + +#define CPC_PROT_RESP_MASK (0x3) +#define CPUSYS_RESP_OFS (16) +#define MCUSYS_RESP_OFS (30) + +#define RETRY_CNT_MAX (1000) + +#define PROT_RETRY (0) +#define PROT_SUCCESS (1) +#define PROT_GIVEUP (2) + +/* CPC_MCUSYS_CPC_DBG_SETTING (0xAB00): debug setting */ +#define CPC_PROF_EN BIT(0) +#define CPC_DBG_EN BIT(1) +#define CPC_FREEZE BIT(2) +#define CPC_CALC_EN BIT(3) + +enum mcusys_cpc_lastcore_prot_status { + CPC_SUCCESS = 0, + CPC_ERR_FAIL, + CPC_ERR_TIMEOUT, + NF_CPC_ERR, +}; + +enum mcusys_cpc_smc_events { + CPC_SMC_EVENT_DUMP_TRACE_DATA, + CPC_SMC_EVENT_GIC_DPG_SET, + CPC_SMC_EVENT_CPC_CONFIG, + CPC_SMC_EVENT_READ_CONFIG, + NF_CPC_SMC_EVENT, +}; + +enum mcusys_cpc_smc_config { + CPC_SMC_CONFIG_PROF, + CPC_SMC_CONFIG_AUTO_OFF, + CPC_SMC_CONFIG_AUTO_OFF_THRES, + CPC_SMC_CONFIG_CNT_CLR, + CPC_SMC_CONFIG_TIME_SYNC, + NF_CPC_SMC_CONFIG, +}; + +#define US_TO_TICKS(us) ((us) * 13) +#define TICKS_TO_US(tick) ((tick) / 13) + +int mtk_cpu_pm_cluster_prot_aquire(void); +void mtk_cpu_pm_cluster_prot_release(void); + +void mtk_cpc_mcusys_off_reflect(void); +int mtk_cpc_mcusys_off_prepare(void); + +void mtk_cpc_core_on_hint_set(int cpu); +void mtk_cpc_core_on_hint_clr(int cpu); +void mtk_cpc_time_sync(void); + +uint64_t mtk_cpc_handler(uint64_t act, uint64_t arg1, uint64_t arg2); +uint64_t mtk_cpc_trace_dump(uint64_t act, uint64_t arg1, uint64_t arg2); +void mtk_cpc_init(void); + +#endif /* MT_CPU_PM_CPC_H */ diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_mbox.c b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_mbox.c new file mode 100644 index 0000000..4d67e7b --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_mbox.c @@ -0,0 +1,95 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <errno.h> + +#include <lib/mmio.h> + +#include "mt_cpu_pm_mbox.h" +#include <platform_def.h> + +#ifdef __GNUC__ +#define MCDI_LIKELY(x) __builtin_expect(!!(x), 1) +#define MCDI_UNLIKELY(x) __builtin_expect(!!(x), 0) +#else +#define MCDI_LIKELY(x) (x) +#define MCDI_UNLIKELY(x) (x) +#endif + +#define MCUPM_MBOX_3_BASE (CPU_EB_TCM_BASE + CPU_EB_MBOX3_OFFSET) +#define MCUPM_MBOX_WRITE(id, val) mmio_write_32(MCUPM_MBOX_3_BASE + 4 * (id), val) +#define MCUPM_MBOX_READ(id) mmio_read_32(MCUPM_MBOX_3_BASE + 4 * (id)) + +void mtk_set_mcupm_pll_mode(unsigned int mode) +{ + if (mode < NF_MCUPM_ARMPLL_MODE) { + MCUPM_MBOX_WRITE(MCUPM_MBOX_ARMPLL_MODE, mode); + } +} + +int mtk_get_mcupm_pll_mode(void) +{ + return MCUPM_MBOX_READ(MCUPM_MBOX_ARMPLL_MODE); +} + +void mtk_set_mcupm_buck_mode(unsigned int mode) +{ + if (mode < NF_MCUPM_BUCK_MODE) { + MCUPM_MBOX_WRITE(MCUPM_MBOX_BUCK_MODE, mode); + } +} + +int mtk_get_mcupm_buck_mode(void) +{ + return MCUPM_MBOX_READ(MCUPM_MBOX_BUCK_MODE); +} + +void mtk_set_cpu_pm_preffered_cpu(unsigned int cpuid) +{ + return MCUPM_MBOX_WRITE(MCUPM_MBOX_WAKEUP_CPU, cpuid); +} + +unsigned int mtk_get_cpu_pm_preffered_cpu(void) +{ + return MCUPM_MBOX_READ(MCUPM_MBOX_WAKEUP_CPU); +} + +static int mtk_wait_mbox_init_done(void) +{ + int status = MCUPM_MBOX_READ(MCUPM_MBOX_TASK_STA); + + if (status != MCUPM_TASK_INIT) { + return status; + } + + mtk_set_mcupm_pll_mode(MCUPM_ARMPLL_OFF); + mtk_set_mcupm_buck_mode(MCUPM_BUCK_OFF_MODE); + + MCUPM_MBOX_WRITE(MCUPM_MBOX_PWR_CTRL_EN, (MCUPM_MCUSYS_CTRL | MCUPM_CM_CTRL | + MCUPM_BUCK_CTRL | MCUPM_ARMPLL_CTRL)); + + return status; +} + +int mtk_lp_depd_condition(enum cpupm_mbox_depd_type type) +{ + int status; + + if (type == CPUPM_MBOX_WAIT_DEV_INIT) { + status = mtk_wait_mbox_init_done(); + if (MCDI_UNLIKELY(status != MCUPM_TASK_INIT)) { + return -ENXIO; + } + MCUPM_MBOX_WRITE(MCUPM_MBOX_AP_READY, 1); + } else if (type == CPUPM_MBOX_WAIT_TASK_READY) { + status = MCUPM_MBOX_READ(MCUPM_MBOX_TASK_STA); + if (MCDI_UNLIKELY((status != MCUPM_TASK_WAIT) && + (status != MCUPM_TASK_INIT_FINISH))) { + return -ENXIO; + } + } + return 0; +} diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_mbox.h b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_mbox.h new file mode 100644 index 0000000..72be6bd --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_cpu_pm_mbox.h @@ -0,0 +1,78 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MT_CPU_PM_MBOX_H +#define MT_CPU_PM_MBOX_H + +#include <lib/utils_def.h> + +/* MCUPM Mbox */ +/* AP Write */ +#define MCUPM_MBOX_AP_READY (0) +#define MCUPM_MBOX_RESERVED_1 (1) +#define MCUPM_MBOX_RESERVED_2 (2) +#define MCUPM_MBOX_RESERVED_3 (3) +#define MCUPM_MBOX_PWR_CTRL_EN (4) +#define MCUPM_MBOX_L3_CACHE_MODE (5) +#define MCUPM_MBOX_BUCK_MODE (6) +#define MCUPM_MBOX_ARMPLL_MODE (7) +/* AP Read */ +#define MCUPM_MBOX_TASK_STA (8) +#define MCUPM_MBOX_RESERVED_9 (9) +#define MCUPM_MBOX_RESERVED_10 (10) +#define MCUPM_MBOX_RESERVED_11 (11) +#define MCUPM_MBOX_WAKEUP_CPU (12) + +/* Mbox Slot: APMCU_MCUPM_MBOX_PWR_CTRL_EN (4) */ +#define MCUPM_MCUSYS_CTRL BIT(0) +#define MCUPM_BUCK_CTRL BIT(1) +#define MCUPM_ARMPLL_CTRL BIT(2) +#define MCUPM_CM_CTRL BIT(3) +#define MCUPM_PWR_CTRL_MASK (BIT(3) - 1) + +/* Mbox Slot: APMCU_MCUPM_MBOX_L3_CACHE_MODE (5) */ +#define MCUPM_L3_OFF_MODE (0) /* default */ +#define MCUPM_L3_DORMANT_MODE (1) +#define NF_MCUPM_L3_MODE (2) + +/* Mbox Slot: APMCU_MCUPM_MBOX_BUCK_MODE (6) */ +#define MCUPM_BUCK_NORMAL_MODE (0) /* default */ +#define MCUPM_BUCK_LP_MODE (1) +#define MCUPM_BUCK_OFF_MODE (2) +#define NF_MCUPM_BUCK_MODE (3) + +/* Mbox Slot: APMCU_MCUPM_MBOX_ARMPLL_MODE (7) */ +#define MCUPM_ARMPLL_ON (0) /* default */ +#define MCUPM_ARMPLL_GATING (1) +#define MCUPM_ARMPLL_OFF (2) +#define NF_MCUPM_ARMPLL_MODE (3) + +/* Mbox Slot: APMCU_MCUPM_MBOX_TASK_STA (9) */ +#define MCUPM_TASK_UNINIT (0) +#define MCUPM_TASK_INIT (1) +#define MCUPM_TASK_INIT_FINISH (2) +#define MCUPM_TASK_WAIT (3) +#define MCUPM_TASK_RUN (4) +#define MCUPM_TASK_PAUSE (5) + + +void mtk_set_mcupm_pll_mode(unsigned int mode); +int mtk_get_mcupm_pll_mode(void); + +void mtk_set_mcupm_buck_mode(unsigned int mode); +int mtk_get_mcupm_buck_mode(void); + +void mtk_set_cpu_pm_preffered_cpu(unsigned int cpuid); +unsigned int mtk_get_cpu_pm_preffered_cpu(void); + +enum cpupm_mbox_depd_type { + CPUPM_MBOX_WAIT_DEV_INIT, + CPUPM_MBOX_WAIT_TASK_READY, +}; + +int mtk_lp_depd_condition(enum cpupm_mbox_depd_type type); + +#endif /* MT_CPU_PM_MBOX_H */ diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_smp.c b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_smp.c new file mode 100644 index 0000000..a1d9c31 --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_smp.c @@ -0,0 +1,93 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <assert.h> + +#include <arch_helpers.h> +#include <common/debug.h> +#include <drivers/delay_timer.h> +#include <plat/common/platform.h> + +#include <lib/pm/mtk_pm.h> +#include <mcucfg.h> +#include "mt_cpu_pm.h" +#include "mt_smp.h" + +static inline int is_core_power_status_on(unsigned int cpuid) +{ + return !!(mmio_read_32(CPU_PWR_STATUS) & BIT(cpuid)); +} + +void mt_smp_core_init_arch(unsigned int cluster, unsigned int cpu, int arm64, + struct cpu_pwr_ctrl *pwr_ctrl) +{ + CPU_PM_ASSERT(cluster == 0); + CPU_PM_ASSERT(pwr_ctrl != NULL); + + /* aa64naa32 in bits[16:23] */ + if (arm64 != 0) { + mmio_setbits_32(pwr_ctrl->arch_addr, 1 << (16 + cpu)); + } else { + mmio_clrbits_32(pwr_ctrl->arch_addr, 1 << (16 + cpu)); + } +} + +void mt_smp_core_bootup_address_set(struct cpu_pwr_ctrl *pwr_ctrl, uintptr_t entry) +{ + CPU_PM_ASSERT(pwr_ctrl != NULL); + + /* Set bootup address */ + mmio_write_32(pwr_ctrl->rvbaraddr_l, entry); +} + +int mt_smp_power_core_on(unsigned int cpu_id, struct cpu_pwr_ctrl *pwr_ctrl) +{ + unsigned int val = is_core_power_status_on(cpu_id); + + CPU_PM_ASSERT(pwr_ctrl); + + mmio_clrbits_32(pwr_ctrl->pwpr, RESETPWRON_CONFIG); + if (val == 0) { + /* + * Set to 0 after BIG VPROC bulk powered on (configure in MCUPM) and + * before big core power-on sequence. + */ + if (cpu_id >= PLAT_CPU_PM_B_BUCK_ISO_ID) { + mmio_write_32(DREQ20_BIG_VPROC_ISO, 0); + } + + mmio_setbits_32(pwr_ctrl->pwpr, PWR_RST_B); + dsbsy(); + + /* set mp0_spmc_pwr_on_cpuX = 1 */ + mmio_setbits_32(pwr_ctrl->pwpr, PWR_ON); + + val = 0; + while (is_core_power_status_on(cpu_id) == 0) { + DO_SMP_CORE_ON_WAIT_TIMEOUT(val); + mmio_clrbits_32(pwr_ctrl->pwpr, PWR_ON); + mmio_setbits_32(pwr_ctrl->pwpr, PWR_ON); + } + } else { + INFO("[%s:%d] - core_%u haven been power on\n", __func__, __LINE__, cpu_id); + } + + return MTK_CPUPM_E_OK; +} + +int mt_smp_power_core_off(struct cpu_pwr_ctrl *pwr_ctrl) +{ + /* set mp0_spmc_pwr_on_cpuX = 1 */ + mmio_clrbits_32(pwr_ctrl->pwpr, PWR_ON); + return MTK_CPUPM_E_OK; +} + +void mt_smp_init(void) +{ + /* clear RESETPWRON_CONFIG of mcusys/cluster/core0 */ + mmio_clrbits_32(SPM_MCUSYS_PWR_CON, RESETPWRON_CONFIG); + mmio_clrbits_32(SPM_MP0_CPUTOP_PWR_CON, RESETPWRON_CONFIG); +} diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_smp.h b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_smp.h new file mode 100644 index 0000000..4c2f8d2 --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/mt_smp.h @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MT_SMP_H +#define MT_SMP_H + +#include <lib/mmio.h> +#include <platform_def.h> + +#define CPU_PWR_STATUS (MCUCFG_BASE + 0xA840) + +#define SMP_CORE_TIMEOUT_MAX (50000) +#define DO_SMP_CORE_ON_WAIT_TIMEOUT(k_cnt) ({ \ + CPU_PM_ASSERT(k_cnt < SMP_CORE_TIMEOUT_MAX); \ + k_cnt++; udelay(1); }) + +void mt_smp_core_init_arch(unsigned int cluster, unsigned int cpu, int arm64, + struct cpu_pwr_ctrl *pwr_ctrl); +void mt_smp_core_bootup_address_set(struct cpu_pwr_ctrl *pwr_ctrl, uintptr_t entry); +int mt_smp_power_core_on(unsigned int cpu_id, struct cpu_pwr_ctrl *pwr_ctrl); +int mt_smp_power_core_off(struct cpu_pwr_ctrl *pwr_ctrl); +void mt_smp_init(void); + +#endif /* MT_SMP_H */ diff --git a/plat/mediatek/drivers/cpu_pm/cpcv3_2/rules.mk b/plat/mediatek/drivers/cpu_pm/cpcv3_2/rules.mk new file mode 100644 index 0000000..858cf38 --- /dev/null +++ b/plat/mediatek/drivers/cpu_pm/cpcv3_2/rules.mk @@ -0,0 +1,19 @@ +# +# Copyright (c) 2022, MediaTek Inc. All rights reserved. +# +# SPDX-License-Identifier: BSD-3-Clause +# + +LOCAL_DIR := $(call GET_LOCAL_DIR) + +MODULE := cpcv${CONFIG_MTK_CPU_PM_ARCH} + +LOCAL_SRCS-y := ${LOCAL_DIR}/mt_cpu_pm.c ${LOCAL_DIR}/mt_cpu_pm_cpc.c + +LOCAL_SRCS-$(CPU_PM_TINYSYS_SUPPORT) += ${LOCAL_DIR}/mt_cpu_pm_mbox.c +LOCAL_SRCS-$(CONFIG_MTK_SMP_EN) += ${LOCAL_DIR}/mt_smp.c + +$(eval $(call add_defined_option,CPU_PM_TINYSYS_SUPPORT)) + +$(eval $(call MAKE_MODULE,$(MODULE),$(LOCAL_SRCS-y),$(MTK_BL))) + |