diff options
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/mt8186/drivers/mcdi | |
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/mt8186/drivers/mcdi')
-rw-r--r-- | plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm.c | 149 | ||||
-rw-r--r-- | plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm.h | 34 | ||||
-rw-r--r-- | plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm_cpc.c | 269 | ||||
-rw-r--r-- | plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm_cpc.h | 102 | ||||
-rw-r--r-- | plat/mediatek/mt8186/drivers/mcdi/mt_lp_irqremain.c | 74 | ||||
-rw-r--r-- | plat/mediatek/mt8186/drivers/mcdi/mt_lp_irqremain.h | 15 | ||||
-rw-r--r-- | plat/mediatek/mt8186/drivers/mcdi/mt_mcdi.c | 150 | ||||
-rw-r--r-- | plat/mediatek/mt8186/drivers/mcdi/mt_mcdi.h | 12 |
8 files changed, 805 insertions, 0 deletions
diff --git a/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm.c b/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm.c new file mode 100644 index 0000000..8c012e7 --- /dev/null +++ b/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm.c @@ -0,0 +1,149 @@ +/* + * Copyright (c) 2021, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <assert.h> +#include <stdint.h> + +#include <arch_helpers.h> +#include <lib/psci/psci.h> +#include <lib/spinlock.h> + +#include <mt_cpu_pm_cpc.h> +#include <mt_lp_irqremain.h> +#include <mt_lp_rm.h> +#include <mt_mcdi.h> +#include <plat_mtk_lpm.h> +#include <plat_pm.h> + +DEFINE_SYSREG_RW_FUNCS(dbgprcr_el1); + +static int plat_mt_lp_cpu_rc; + +static int pwr_state_prompt(unsigned int cpu, const psci_power_state_t *state) +{ + return 0; +} + +static int pwr_state_reflect(unsigned int cpu, const psci_power_state_t *state) +{ + mtk_cpc_core_on_hint_clr(cpu); + + if (IS_SYSTEM_SUSPEND_STATE(state)) { + mtk_cpc_time_sync(); + } + + return 0; +} + +static int pwr_cpu_pwron(unsigned int cpu, const psci_power_state_t *state) +{ + return 0; +} + +static int pwr_cpu_pwrdwn(unsigned int cpu, const psci_power_state_t *state) +{ + /* clear DBGPRCR.CORENPDRQ to allow CPU power down */ + write_dbgprcr_el1(0ULL); + + return 0; +} + +static int pwr_cluster_pwron(unsigned int cpu, const psci_power_state_t *state) +{ + return 0; +} + +static int pwr_cluster_pwrdwn(unsigned int cpu, const psci_power_state_t *state) +{ + return 0; +} + +static int pwr_mcusys_pwron(unsigned int cpu, const psci_power_state_t *state) +{ + if (!IS_MCUSYS_OFF_STATE(state) || (plat_mt_lp_cpu_rc < 0)) { + return -1; + } + + mtk_cpc_mcusys_off_reflect(); + + return 0; +} + +static int pwr_mcusys_pwron_finished(unsigned int cpu, + const psci_power_state_t *state) +{ + int state_id = state->pwr_domain_state[MTK_AFFLVL_MCUSYS]; + + if (!IS_MCUSYS_OFF_STATE(state) || (plat_mt_lp_cpu_rc < 0)) { + return -1; + } + + mt_lp_rm_reset_constraint(plat_mt_lp_cpu_rc, cpu, state_id); + mt_lp_irqremain_release(); + + return 0; +} + +static int pwr_mcusys_pwrdwn(unsigned int cpu, const psci_power_state_t *state) +{ + int state_id = state->pwr_domain_state[MTK_AFFLVL_MCUSYS]; + + if (!IS_MCUSYS_OFF_STATE(state)) { + goto mt_pwr_mcusysoff_break; + } + + if (mcdi_try_init() != 0) { /* not ready to process mcusys-off */ + goto mt_pwr_mcusysoff_break; + } + + if (mtk_cpc_mcusys_off_prepare() != CPC_SUCCESS) { + goto mt_pwr_mcusysoff_break; + } + + plat_mt_lp_cpu_rc = + mt_lp_rm_find_and_run_constraint(0, cpu, state_id, NULL); + + if (plat_mt_lp_cpu_rc < 0) { + goto mt_pwr_mcusysoff_reflect; + } + + mt_lp_irqremain_aquire(); + + return 0; + +mt_pwr_mcusysoff_reflect: + mtk_cpc_mcusys_off_reflect(); + +mt_pwr_mcusysoff_break: + plat_mt_lp_cpu_rc = -1; + + return -1; +} + +static const struct mt_lpm_tz plat_pm = { + .pwr_prompt = pwr_state_prompt, + .pwr_reflect = pwr_state_reflect, + .pwr_cpu_on = pwr_cpu_pwron, + .pwr_cpu_dwn = pwr_cpu_pwrdwn, + .pwr_cluster_on = pwr_cluster_pwron, + .pwr_cluster_dwn = pwr_cluster_pwrdwn, + .pwr_mcusys_dwn = pwr_mcusys_pwrdwn, + .pwr_mcusys_on = pwr_mcusys_pwron, + .pwr_mcusys_on_finished = pwr_mcusys_pwron_finished +}; + +const struct mt_lpm_tz *mt_plat_cpu_pm_init(void) +{ + mtk_cpc_init(); + + if (mcdi_try_init() == 0) { + INFO("MCDI init done.\n"); + } + + mt_lp_irqremain_init(); + + return &plat_pm; +} diff --git a/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm.h b/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm.h new file mode 100644 index 0000000..83a7a53 --- /dev/null +++ b/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm.h @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2021, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef __MT_CPU_PM_H__ +#define __MT_CPU_PM_H__ + +#define MCUSYS_STATUS_PDN (1 << 0UL) +#define MCUSYS_STATUS_CPUSYS_PROTECT (1 << 8UL) +#define MCUSYS_STATUS_MCUSYS_PROTECT (1 << 9UL) + +/* cpu_pm function ID*/ +enum mt_cpu_pm_user_id { + MCUSYS_STATUS, + CPC_COMMAND, + IRQ_REMAIN_LIST_ALLOC, + IRQ_REMAIN_IRQ_ADD, + IRQ_REMAIN_IRQ_SUBMIT, + MBOX_INFO, +}; + +/* 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 diff --git a/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm_cpc.c b/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm_cpc.c new file mode 100644 index 0000000..2b0f071 --- /dev/null +++ b/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm_cpc.c @@ -0,0 +1,269 @@ +/* + * Copyright (c) 2021, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <string.h> + +#include <drivers/delay_timer.h> + +#include <mt_cpu_pm_cpc.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(uint32_t prot_req, + uint32_t resp_reg, uint32_t resp_ofs) +{ + uint32_t sta, retry; + + retry = 0U; + + while (retry++ < RETRY_CNT_MAX) { + + mmio_write_32(CPC_MCUSYS_LAST_CORE_REQ, prot_req); + + udelay(1U); + + sta = (mmio_read_32(resp_reg) >> resp_ofs) & CPC_PROT_RESP_MASK; + + if (sta == PROT_SUCCESS) { + return CPC_SUCCESS; + } else if (sta == PROT_GIVEUP) { + return CPC_ERR_FAIL; + } + } + + return CPC_ERR_TIMEOUT; +} + +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); +} + +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(unsigned int cluster) +{ + 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(unsigned int cluster) +{ + mmio_write_32(CPC_MCUSYS_PWR_ON_MASK, CPUSYS_PROT_CLR); +} + +static void mtk_cpc_cluster_cnt_backup(void) +{ + uint32_t backup_cnt; + uint32_t curr_cnt; + uint32_t cnt_mask = GENMASK(14, 0); + uint32_t clr_mask = GENMASK(1, 0); + + /* Single Cluster */ + backup_cnt = mmio_read_32(CPC_CLUSTER_CNT_BACKUP); + curr_cnt = mmio_read_32(CPC_MCUSYS_CLUSTER_COUNTER); + + /* Get off count if dormant count is 0 */ + if ((curr_cnt & cnt_mask) == 0U) { + curr_cnt = (curr_cnt >> 16) & cnt_mask; + } else { + curr_cnt = curr_cnt & cnt_mask; + } + + mmio_write_32(CPC_CLUSTER_CNT_BACKUP, backup_cnt + curr_cnt); + mmio_write_32(CPC_MCUSYS_CLUSTER_COUNTER_CLR, clr_mask); +} + +static inline void mtk_cpc_mcusys_off_en(void) +{ + mmio_write_32(CPC_MCUSYS_PWR_CTRL, 1U); +} + +static inline void mtk_cpc_mcusys_off_dis(void) +{ + mmio_write_32(CPC_MCUSYS_PWR_CTRL, 0U); +} + +void mtk_cpc_mcusys_off_reflect(void) +{ + mtk_cpc_mcusys_off_dis(); + 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_en(); + + return CPC_SUCCESS; +} + +void mtk_cpc_core_on_hint_set(unsigned int cpu) +{ + mmio_write_32(CPC_MCUSYS_CPU_ON_SW_HINT_SET, BIT(cpu)); +} + +void mtk_cpc_core_on_hint_clr(unsigned int cpu) +{ + mmio_write_32(CPC_MCUSYS_CPU_ON_SW_HINT_CLR, BIT(cpu)); +} + +static void mtk_cpc_dump_timestamp(void) +{ + uint32_t id; + + for (id = 0U; 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(uint32_t cfg, uint32_t data) +{ + uint32_t val; + uint32_t reg = 0U; + + switch (cfg) { + case CPC_SMC_CONFIG_PROF: + reg = CPC_MCUSYS_CPC_DBG_SETTING; + val = mmio_read_32(reg); + val = (data != 0U) ? (val | CPC_PROF_EN) : (val & ~CPC_PROF_EN); + break; + case CPC_SMC_CONFIG_AUTO_OFF: + reg = CPC_MCUSYS_CPC_FLOW_CTRL_CFG; + val = mmio_read_32(reg); + if (data != 0U) { + val |= CPC_AUTO_OFF_EN; + cpc.auto_off = 1; + } else { + val &= ~CPC_AUTO_OFF_EN; + cpc.auto_off = 0; + } + break; + case CPC_SMC_CONFIG_AUTO_OFF_THRES: + reg = CPC_MCUSYS_CPC_OFF_THRES; + cpc.auto_thres_tick = us_to_ticks(data); + val = cpc.auto_thres_tick; + break; + case CPC_SMC_CONFIG_CNT_CLR: + reg = CPC_MCUSYS_CLUSTER_COUNTER_CLR; + val = GENMASK(1, 0); /* clr_mask */ + break; + case CPC_SMC_CONFIG_TIME_SYNC: + mtk_cpc_time_sync(); + break; + default: + break; + } + + if (reg != 0U) { + mmio_write_32(reg, val); + } +} + +static uint32_t mtk_cpc_read_config(uint32_t cfg) +{ + uint32_t res = 0U; + + switch (cfg) { + case CPC_SMC_CONFIG_PROF: + res = (mmio_read_32(CPC_MCUSYS_CPC_DBG_SETTING) & CPC_PROF_EN) ? + 1U : 0U; + 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: + break; + default: + break; + } + + return res; +} + +uint64_t mtk_cpc_handler(uint64_t act, uint64_t arg1, uint64_t arg2) +{ + uint64_t res = 0ULL; + + switch (act) { + case CPC_SMC_EVENT_DUMP_TRACE_DATA: + mtk_cpc_dump_timestamp(); + break; + case CPC_SMC_EVENT_GIC_DPG_SET: + /* isolated_status = x2; */ + break; + case CPC_SMC_EVENT_CPC_CONFIG: + mtk_cpc_config((uint32_t)arg1, (uint32_t)arg2); + break; + case CPC_SMC_EVENT_READ_CONFIG: + res = mtk_cpc_read_config((uint32_t)arg1); + break; + default: + break; + } + + return res; +} + +void mtk_cpc_init(void) +{ + mmio_write_32(CPC_MCUSYS_CPC_DBG_SETTING, + mmio_read_32(CPC_MCUSYS_CPC_DBG_SETTING) + | CPC_DBG_EN + | CPC_CALC_EN); + + cpc.auto_off = 1; + cpc.auto_thres_tick = us_to_ticks(8000); + + mmio_write_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG, + mmio_read_32(CPC_MCUSYS_CPC_FLOW_CTRL_CFG) + | CPC_OFF_PRE_EN + | (cpc.auto_off ? CPC_AUTO_OFF_EN : 0U)); + + mmio_write_32(CPC_MCUSYS_CPC_OFF_THRES, cpc.auto_thres_tick); +} diff --git a/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm_cpc.h b/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm_cpc.h new file mode 100644 index 0000000..488b1d1 --- /dev/null +++ b/plat/mediatek/mt8186/drivers/mcdi/mt_cpu_pm_cpc.h @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2021, 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 <lib/utils_def.h> +#include <mcucfg.h> +#include <platform_def.h> + +#define NEED_CPUSYS_PROT_WORKAROUND 1 + +/* system sram registers */ +#define CPUIDLE_SRAM_REG(r) (0x11B000 + (r)) + +/* db dump */ +#define CPC_TRACE_SIZE U(0x20) +#define CPC_TRACE_ID_NUM U(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 U(0x3) +#define CPUSYS_RESP_OFS U(16) +#define MCUSYS_RESP_OFS U(30) + +#define cpusys_resp(r) (((r) >> CPUSYS_RESP_OFS) & CPC_PROT_RESP_MASK) +#define mcusys_resp(r) (((r) >> MCUSYS_RESP_OFS) & CPC_PROT_RESP_MASK) + +#define RETRY_CNT_MAX U(1000) + +#define PROT_RETRY U(0) +#define PROT_SUCCESS U(1) +#define PROT_GIVEUP U(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 { + CPC_SUCCESS = 0U, + CPC_ERR_FAIL = 1U, + CPC_ERR_TIMEOUT = 2U, + NF_CPC_ERR = 3U, +}; + +enum { + CPC_SMC_EVENT_DUMP_TRACE_DATA = 0U, + CPC_SMC_EVENT_GIC_DPG_SET = 1U, + CPC_SMC_EVENT_CPC_CONFIG = 2U, + CPC_SMC_EVENT_READ_CONFIG = 3U, + NF_CPC_SMC_EVENT = 4U, +}; + +enum { + CPC_SMC_CONFIG_PROF = 0U, + CPC_SMC_CONFIG_AUTO_OFF = 1U, + CPC_SMC_CONFIG_AUTO_OFF_THRES = 2U, + CPC_SMC_CONFIG_CNT_CLR = 3U, + CPC_SMC_CONFIG_TIME_SYNC = 4U, + NF_CPC_SMC_CONFIG = 5U, +}; + +#define us_to_ticks(us) ((us) * 13) +#define ticks_to_us(tick) ((tick) / 13) + +int mtk_cpu_pm_cluster_prot_aquire(unsigned int cluster); +void mtk_cpu_pm_cluster_prot_release(unsigned int cluster); + +void mtk_cpc_mcusys_off_reflect(void); +int mtk_cpc_mcusys_off_prepare(void); + +void mtk_cpc_core_on_hint_set(unsigned int cpu); +void mtk_cpc_core_on_hint_clr(unsigned int cpu); +void mtk_cpc_time_sync(void); + +uint64_t mtk_cpc_handler(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/mt8186/drivers/mcdi/mt_lp_irqremain.c b/plat/mediatek/mt8186/drivers/mcdi/mt_lp_irqremain.c new file mode 100644 index 0000000..b5a0284 --- /dev/null +++ b/plat/mediatek/mt8186/drivers/mcdi/mt_lp_irqremain.c @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <mt_cirq.h> +#include <mt_lp_irqremain.h> +#include <mt_lp_rm.h> +#include <plat_mtk_lpm.h> + +#define KEYPAD_IRQ_ID U(138) +#define KEYPAD_WAKESRC (0x4U) + +static struct mt_irqremain remain_irqs; + +int mt_lp_irqremain_submit(void) +{ + int ret = 0; + + if (remain_irqs.count == 0) { + ret = -1; + } else { + set_wakeup_sources(remain_irqs.irqs, remain_irqs.count); + mt_lp_rm_do_update(-1, PLAT_RC_UPDATE_REMAIN_IRQS, &remain_irqs); + } + + return ret; +} + +int mt_lp_irqremain_aquire(void) +{ + int ret = 0; + + if (remain_irqs.count == 0) { + ret = -1; + } else { + mt_cirq_sw_reset(); + mt_cirq_clone_gic(); + mt_cirq_enable(); + } + + return ret; +} + +int mt_lp_irqremain_release(void) +{ + int ret = 0; + + if (remain_irqs.count == 0) { + ret = -1; + } else { + mt_cirq_flush(); + mt_cirq_disable(); + } + + return ret; +} + +void mt_lp_irqremain_init(void) +{ + uint32_t idx; + + remain_irqs.count = 0U; + + /*edge keypad*/ + idx = remain_irqs.count; + remain_irqs.irqs[idx] = KEYPAD_IRQ_ID; + remain_irqs.wakeupsrc_cat[idx] = 0U; + remain_irqs.wakeupsrc[idx] = KEYPAD_WAKESRC; + remain_irqs.count++; + + mt_lp_irqremain_submit(); +} diff --git a/plat/mediatek/mt8186/drivers/mcdi/mt_lp_irqremain.h b/plat/mediatek/mt8186/drivers/mcdi/mt_lp_irqremain.h new file mode 100644 index 0000000..c313438 --- /dev/null +++ b/plat/mediatek/mt8186/drivers/mcdi/mt_lp_irqremain.h @@ -0,0 +1,15 @@ +/* + * Copyright (c) 2022, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MT_LP_IRQREMAIN_H +#define MT_LP_IRQREMAIN_H + +extern int mt_lp_irqremain_submit(void); +extern int mt_lp_irqremain_aquire(void); +extern int mt_lp_irqremain_release(void); +extern void mt_lp_irqremain_init(void); + +#endif /* MT_LP_IRQREMAIN_H */ diff --git a/plat/mediatek/mt8186/drivers/mcdi/mt_mcdi.c b/plat/mediatek/mt8186/drivers/mcdi/mt_mcdi.c new file mode 100644 index 0000000..0103612 --- /dev/null +++ b/plat/mediatek/mt8186/drivers/mcdi/mt_mcdi.c @@ -0,0 +1,150 @@ +/* + * Copyright (c) 2021, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <cdefs.h> +#include <common/debug.h> +#include <lib/mmio.h> +#include <lib/utils_def.h> +#include <mt_mcdi.h> + +/* Read/Write */ +#define APMCU_MCUPM_MBOX_AP_READY U(0) +#define APMCU_MCUPM_MBOX_RESERVED_1 U(1) +#define APMCU_MCUPM_MBOX_RESERVED_2 U(2) +#define APMCU_MCUPM_MBOX_RESERVED_3 U(3) +#define APMCU_MCUPM_MBOX_PWR_CTRL_EN U(4) +#define APMCU_MCUPM_MBOX_L3_CACHE_MODE U(5) +#define APMCU_MCUPM_MBOX_BUCK_MODE U(6) +#define APMCU_MCUPM_MBOX_ARMPLL_MODE U(7) +/* Read only */ +#define APMCU_MCUPM_MBOX_TASK_STA U(8) +#define APMCU_MCUPM_MBOX_RESERVED_9 U(9) +#define APMCU_MCUPM_MBOX_RESERVED_10 U(10) +#define APMCU_MCUPM_MBOX_RESERVED_11 U(11) + +/* CPC mode - Read/Write */ +#define APMCU_MCUPM_MBOX_WAKEUP_CPU U(12) + +/* Mbox Slot: APMCU_MCUPM_MBOX_PWR_CTRL_EN */ +#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 GENMASK(3, 0) + +/* Mbox Slot: APMCU_MCUPM_MBOX_BUCK_MODE */ +#define MCUPM_BUCK_NORMAL_MODE U(0) /* default */ +#define MCUPM_BUCK_LP_MODE U(1) +#define MCUPM_BUCK_OFF_MODE U(2) +#define NF_MCUPM_BUCK_MODE U(3) + +/* Mbox Slot: APMCU_MCUPM_MBOX_ARMPLL_MODE */ +#define MCUPM_ARMPLL_ON U(0) /* default */ +#define MCUPM_ARMPLL_GATING U(1) +#define MCUPM_ARMPLL_OFF U(2) +#define NF_MCUPM_ARMPLL_MODE U(3) + +/* Mbox Slot: APMCU_MCUPM_MBOX_TASK_STA */ +#define MCUPM_TASK_UNINIT U(0) +#define MCUPM_TASK_INIT U(1) +#define MCUPM_TASK_INIT_FINISH U(2) +#define MCUPM_TASK_WAIT U(3) +#define MCUPM_TASK_RUN U(4) +#define MCUPM_TASK_PAUSE U(5) + +#define SSPM_MBOX_3_BASE U(0x10420000) + +#define MCDI_NOT_INIT U(0) +#define MCDI_INIT_1 U(1) +#define MCDI_INIT_2 U(2) +#define MCDI_INIT_DONE U(3) + +static int mcdi_init_status __section("tzfw_coherent_mem"); + +static inline uint32_t mcdi_mbox_read(uint32_t id) +{ + return mmio_read_32(SSPM_MBOX_3_BASE + (id << 2)); +} + +static inline void mcdi_mbox_write(uint32_t id, uint32_t val) +{ + mmio_write_32(SSPM_MBOX_3_BASE + (id << 2), val); +} + +static void mtk_mcupm_pwr_ctrl_setting(uint32_t dev) +{ + mcdi_mbox_write(APMCU_MCUPM_MBOX_PWR_CTRL_EN, dev); +} + +static void mtk_set_mcupm_pll_mode(uint32_t mode) +{ + if (mode < NF_MCUPM_ARMPLL_MODE) { + mcdi_mbox_write(APMCU_MCUPM_MBOX_ARMPLL_MODE, mode); + } +} + +static void mtk_set_mcupm_buck_mode(uint32_t mode) +{ + if (mode < NF_MCUPM_BUCK_MODE) { + mcdi_mbox_write(APMCU_MCUPM_MBOX_BUCK_MODE, mode); + } +} + +static int mtk_mcupm_is_ready(void) +{ + unsigned int sta = mcdi_mbox_read(APMCU_MCUPM_MBOX_TASK_STA); + + return ((sta == MCUPM_TASK_WAIT) || (sta == MCUPM_TASK_INIT_FINISH)); +} + +static int mcdi_init_1(void) +{ + unsigned int sta = mcdi_mbox_read(APMCU_MCUPM_MBOX_TASK_STA); + + if (sta != MCUPM_TASK_INIT) { + return -1; + } + + mtk_set_mcupm_pll_mode(MCUPM_ARMPLL_OFF); + mtk_set_mcupm_buck_mode(MCUPM_BUCK_OFF_MODE); + + mtk_mcupm_pwr_ctrl_setting( + MCUPM_MCUSYS_CTRL | + MCUPM_BUCK_CTRL | + MCUPM_ARMPLL_CTRL); + + mcdi_mbox_write(APMCU_MCUPM_MBOX_AP_READY, 1); + + return 0; +} + +static int mcdi_init_2(void) +{ + return mtk_mcupm_is_ready() ? 0 : -1; +} + +int mcdi_try_init(void) +{ + if (mcdi_init_status == MCDI_INIT_DONE) { + return 0; + } + + if (mcdi_init_status == MCDI_NOT_INIT) { + mcdi_init_status = MCDI_INIT_1; + } + + if (mcdi_init_status == MCDI_INIT_1 && mcdi_init_1() == 0) { + mcdi_init_status = MCDI_INIT_2; + } + + if (mcdi_init_status == MCDI_INIT_2 && mcdi_init_2() == 0) { + mcdi_init_status = MCDI_INIT_DONE; + } + + INFO("mcdi ready for mcusys-off-idle and system suspend\n"); + + return (mcdi_init_status == MCDI_INIT_DONE) ? 0 : mcdi_init_status; +} diff --git a/plat/mediatek/mt8186/drivers/mcdi/mt_mcdi.h b/plat/mediatek/mt8186/drivers/mcdi/mt_mcdi.h new file mode 100644 index 0000000..0e6444a --- /dev/null +++ b/plat/mediatek/mt8186/drivers/mcdi/mt_mcdi.h @@ -0,0 +1,12 @@ +/* + * Copyright (c) 2021, MediaTek Inc. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef MT_MCDI_H +#define MT_MCDI_H + +int mcdi_try_init(void); + +#endif /* MT_MCDI_H */ |