diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 09:13:47 +0000 |
commit | 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 (patch) | |
tree | bcf648efac40ca6139842707f0eba5a4496a6dd2 /plat/mediatek/mt8195/drivers/spm/constraints/mt_spm_rc_cpu_buck_ldo.c | |
parent | Initial commit. (diff) | |
download | arm-trusted-firmware-upstream.tar.xz arm-trusted-firmware-upstream.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 '')
-rw-r--r-- | plat/mediatek/mt8195/drivers/spm/constraints/mt_spm_rc_cpu_buck_ldo.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/plat/mediatek/mt8195/drivers/spm/constraints/mt_spm_rc_cpu_buck_ldo.c b/plat/mediatek/mt8195/drivers/spm/constraints/mt_spm_rc_cpu_buck_ldo.c new file mode 100644 index 0000000..cf71350 --- /dev/null +++ b/plat/mediatek/mt8195/drivers/spm/constraints/mt_spm_rc_cpu_buck_ldo.c @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2021, 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_DISABLE_DRAMC_MCU_SRAM_SLEEP |\ + 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_SUSPEND_MODE | + 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; +} |