1837 lines
50 KiB
C
1837 lines
50 KiB
C
/*
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* Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/*
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* ZynqMP system level PM-API functions and communication with PMU via
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* IPI interrupts
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*/
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#include <arch_helpers.h>
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#include <plat/common/platform.h>
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#include "pm_api_clock.h"
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#include "pm_api_ioctl.h"
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#include "pm_api_pinctrl.h"
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#include "pm_api_sys.h"
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#include "pm_client.h"
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#include "pm_common.h"
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#include "pm_ipi.h"
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#define PM_QUERY_FEATURE_BITMASK ( \
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(1ULL << (uint64_t)PM_QID_CLOCK_GET_NAME) | \
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(1ULL << (uint64_t)PM_QID_CLOCK_GET_TOPOLOGY) | \
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(1ULL << (uint64_t)PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS) | \
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(1ULL << (uint64_t)PM_QID_CLOCK_GET_PARENTS) | \
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(1ULL << (uint64_t)PM_QID_CLOCK_GET_ATTRIBUTES) | \
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(1ULL << (uint64_t)PM_QID_PINCTRL_GET_NUM_PINS) | \
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(1ULL << (uint64_t)PM_QID_PINCTRL_GET_NUM_FUNCTIONS) | \
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(1ULL << (uint64_t)PM_QID_PINCTRL_GET_NUM_FUNCTION_GROUPS) | \
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(1ULL << (uint64_t)PM_QID_PINCTRL_GET_FUNCTION_NAME) | \
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(1ULL << (uint64_t)PM_QID_PINCTRL_GET_FUNCTION_GROUPS) | \
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(1ULL << (uint64_t)PM_QID_PINCTRL_GET_PIN_GROUPS) | \
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(1ULL << (uint64_t)PM_QID_CLOCK_GET_NUM_CLOCKS) | \
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(1ULL << (uint64_t)PM_QID_CLOCK_GET_MAX_DIVISOR))
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/**
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* struct eemi_api_dependency - Dependent EEMI APIs which are implemented
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* on both the ATF and firmware
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*
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* @id: EEMI API id or IOCTL id to be checked
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* @api_id: Dependent EEMI API
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*/
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typedef struct __attribute__((packed)) {
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uint8_t id;
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uint8_t api_id;
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} eemi_api_dependency;
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/* Dependent APIs for ATF to check their version from firmware */
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static const eemi_api_dependency api_dep_table[] = {
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{
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.id = PM_SELF_SUSPEND,
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.api_id = PM_SELF_SUSPEND,
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},
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{
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.id = PM_REQ_WAKEUP,
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.api_id = PM_REQ_WAKEUP,
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},
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{
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.id = PM_ABORT_SUSPEND,
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.api_id = PM_ABORT_SUSPEND,
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},
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{
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.id = PM_SET_WAKEUP_SOURCE,
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.api_id = PM_SET_WAKEUP_SOURCE,
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},
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{
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.id = PM_SYSTEM_SHUTDOWN,
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.api_id = PM_SYSTEM_SHUTDOWN,
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},
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{
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.id = PM_GET_API_VERSION,
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.api_id = PM_GET_API_VERSION,
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},
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{
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.id = PM_CLOCK_ENABLE,
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.api_id = PM_PLL_SET_MODE,
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},
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{
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.id = PM_CLOCK_ENABLE,
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.api_id = PM_CLOCK_ENABLE,
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},
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{
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.id = PM_CLOCK_DISABLE,
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.api_id = PM_PLL_SET_MODE,
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},
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{
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.id = PM_CLOCK_DISABLE,
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.api_id = PM_CLOCK_DISABLE,
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},
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{
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.id = PM_CLOCK_GETSTATE,
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.api_id = PM_PLL_GET_MODE,
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},
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{
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.id = PM_CLOCK_GETSTATE,
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.api_id = PM_CLOCK_GETSTATE,
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},
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{
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.id = PM_CLOCK_SETDIVIDER,
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.api_id = PM_PLL_SET_PARAMETER,
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},
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{
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.id = PM_CLOCK_SETDIVIDER,
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.api_id = PM_CLOCK_SETDIVIDER,
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},
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{
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.id = PM_CLOCK_GETDIVIDER,
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.api_id = PM_PLL_GET_PARAMETER,
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},
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{
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.id = PM_CLOCK_GETDIVIDER,
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.api_id = PM_CLOCK_GETDIVIDER,
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},
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{
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.id = PM_CLOCK_SETPARENT,
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.api_id = PM_PLL_SET_PARAMETER,
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},
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{
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.id = PM_CLOCK_SETPARENT,
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.api_id = PM_CLOCK_SETPARENT,
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},
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{
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.id = PM_CLOCK_GETPARENT,
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.api_id = PM_PLL_GET_PARAMETER,
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},
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{
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.id = PM_CLOCK_GETPARENT,
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.api_id = PM_CLOCK_GETPARENT,
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},
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{
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.id = PM_PLL_SET_PARAMETER,
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.api_id = PM_PLL_SET_PARAMETER,
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},
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{
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.id = PM_PLL_GET_PARAMETER,
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.api_id = PM_PLL_GET_PARAMETER,
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},
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{
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.id = PM_PLL_SET_MODE,
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.api_id = PM_PLL_SET_MODE,
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},
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{
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.id = PM_PLL_GET_MODE,
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.api_id = PM_PLL_GET_MODE,
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},
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{
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.id = PM_REGISTER_ACCESS,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = PM_REGISTER_ACCESS,
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.api_id = PM_MMIO_READ,
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},
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{
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.id = PM_FEATURE_CHECK,
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.api_id = PM_FEATURE_CHECK,
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},
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{
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.id = IOCTL_SET_TAPDELAY_BYPASS,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = IOCTL_SET_SGMII_MODE,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = IOCTL_SD_DLL_RESET,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = IOCTL_SET_SD_TAPDELAY,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = IOCTL_SET_SD_TAPDELAY,
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.api_id = PM_MMIO_READ,
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},
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{
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.id = IOCTL_SET_PLL_FRAC_DATA,
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.api_id = PM_PLL_SET_PARAMETER,
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},
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{
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.id = IOCTL_GET_PLL_FRAC_DATA,
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.api_id = PM_PLL_GET_PARAMETER,
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},
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{
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.id = IOCTL_WRITE_GGS,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = IOCTL_READ_GGS,
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.api_id = PM_MMIO_READ,
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},
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{
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.id = IOCTL_WRITE_PGGS,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = IOCTL_READ_PGGS,
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.api_id = PM_MMIO_READ,
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},
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{
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.id = IOCTL_ULPI_RESET,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = IOCTL_SET_BOOT_HEALTH_STATUS,
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.api_id = PM_MMIO_WRITE,
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},
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{
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.id = IOCTL_AFI,
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.api_id = PM_MMIO_WRITE,
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},
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};
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/* Expected firmware API version to ATF */
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static const uint8_t atf_expected_ver_id[] = {
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[PM_SELF_SUSPEND] = FW_API_BASE_VERSION,
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[PM_REQ_WAKEUP] = FW_API_BASE_VERSION,
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[PM_ABORT_SUSPEND] = FW_API_BASE_VERSION,
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[PM_SET_WAKEUP_SOURCE] = FW_API_BASE_VERSION,
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[PM_SYSTEM_SHUTDOWN] = FW_API_BASE_VERSION,
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[PM_GET_API_VERSION] = FW_API_BASE_VERSION,
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[PM_PLL_SET_MODE] = FW_API_BASE_VERSION,
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[PM_PLL_GET_MODE] = FW_API_BASE_VERSION,
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[PM_CLOCK_ENABLE] = FW_API_BASE_VERSION,
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[PM_CLOCK_DISABLE] = FW_API_BASE_VERSION,
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[PM_CLOCK_GETSTATE] = FW_API_BASE_VERSION,
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[PM_PLL_SET_PARAMETER] = FW_API_BASE_VERSION,
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[PM_PLL_GET_PARAMETER] = FW_API_BASE_VERSION,
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[PM_CLOCK_SETDIVIDER] = FW_API_BASE_VERSION,
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[PM_CLOCK_GETDIVIDER] = FW_API_BASE_VERSION,
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[PM_CLOCK_SETPARENT] = FW_API_BASE_VERSION,
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[PM_CLOCK_GETPARENT] = FW_API_BASE_VERSION,
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[PM_MMIO_WRITE] = FW_API_BASE_VERSION,
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[PM_MMIO_READ] = FW_API_BASE_VERSION,
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[PM_FEATURE_CHECK] = FW_API_VERSION_2,
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};
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/* default shutdown/reboot scope is system(2) */
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static unsigned int pm_shutdown_scope = PMF_SHUTDOWN_SUBTYPE_SYSTEM;
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/**
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* pm_get_shutdown_scope() - Get the currently set shutdown scope
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*
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* @return Shutdown scope value
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*/
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unsigned int pm_get_shutdown_scope(void)
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{
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return pm_shutdown_scope;
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}
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#define EM_PACK_PAYLOAD1(pl, arg0) { \
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pl[0] = (uint16_t)(0xE) << 16 | (uint16_t)arg0; \
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}
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/**
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* pm_self_suspend() - PM call for processor to suspend itself
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* @nid Node id of the processor or subsystem
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* @latency Requested maximum wakeup latency (not supported)
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* @state Requested state
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* @address Resume address
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*
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* This is a blocking call, it will return only once PMU has responded.
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* On a wakeup, resume address will be automatically set by PMU.
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_self_suspend(enum pm_node_id nid,
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unsigned int latency,
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unsigned int state,
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uintptr_t address)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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unsigned int cpuid = plat_my_core_pos();
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const struct pm_proc *proc = pm_get_proc(cpuid);
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/*
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* Do client specific suspend operations
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* (e.g. set powerdown request bit)
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*/
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pm_client_suspend(proc, state);
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/* Send request to the PMU */
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PM_PACK_PAYLOAD6(payload, PM_SELF_SUSPEND, proc->node_id, latency,
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state, address, (address >> 32));
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return pm_ipi_send_sync(proc, payload, NULL, 0);
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}
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/**
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* pm_req_suspend() - PM call to request for another PU or subsystem to
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* be suspended gracefully.
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* @target Node id of the targeted PU or subsystem
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* @ack Flag to specify whether acknowledge is requested
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* @latency Requested wakeup latency (not supported)
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* @state Requested state (not supported)
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_req_suspend(enum pm_node_id target,
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enum pm_request_ack ack,
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unsigned int latency, unsigned int state)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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/* Send request to the PMU */
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PM_PACK_PAYLOAD5(payload, PM_REQ_SUSPEND, target, ack, latency, state);
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if (ack == REQ_ACK_BLOCKING) {
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return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
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} else {
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return pm_ipi_send(primary_proc, payload);
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}
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}
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/**
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* pm_req_wakeup() - PM call for processor to wake up selected processor
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* or subsystem
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* @target Node id of the processor or subsystem to wake up
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* @ack Flag to specify whether acknowledge requested
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* @set_address Resume address presence indicator
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* 1 resume address specified, 0 otherwise
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* @address Resume address
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*
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* This API function is either used to power up another APU core for SMP
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* (by PSCI) or to power up an entirely different PU or subsystem, such
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* as RPU0, RPU, or PL_CORE_xx. Resume address for the target PU will be
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* automatically set by PMU.
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_req_wakeup(enum pm_node_id target,
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unsigned int set_address,
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uintptr_t address,
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enum pm_request_ack ack)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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uint64_t encoded_address;
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/* encode set Address into 1st bit of address */
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encoded_address = address;
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encoded_address |= !!set_address;
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/* Send request to the PMU to perform the wake of the PU */
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PM_PACK_PAYLOAD5(payload, PM_REQ_WAKEUP, target, encoded_address,
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encoded_address >> 32, ack);
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if (ack == REQ_ACK_BLOCKING) {
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return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
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} else {
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return pm_ipi_send(primary_proc, payload);
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}
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}
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/**
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* pm_force_powerdown() - PM call to request for another PU or subsystem to
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* be powered down forcefully
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* @target Node id of the targeted PU or subsystem
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* @ack Flag to specify whether acknowledge is requested
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_force_powerdown(enum pm_node_id target,
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enum pm_request_ack ack)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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/* Send request to the PMU */
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PM_PACK_PAYLOAD3(payload, PM_FORCE_POWERDOWN, target, ack);
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if (ack == REQ_ACK_BLOCKING) {
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return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
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} else {
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return pm_ipi_send(primary_proc, payload);
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}
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}
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/**
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* pm_abort_suspend() - PM call to announce that a prior suspend request
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* is to be aborted.
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* @reason Reason for the abort
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*
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* Calling PU expects the PMU to abort the initiated suspend procedure.
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* This is a non-blocking call without any acknowledge.
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_abort_suspend(enum pm_abort_reason reason)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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/*
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* Do client specific abort suspend operations
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* (e.g. enable interrupts and clear powerdown request bit)
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*/
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pm_client_abort_suspend();
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/* Send request to the PMU */
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/* TODO: allow passing the node ID of the affected CPU */
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PM_PACK_PAYLOAD3(payload, PM_ABORT_SUSPEND, reason,
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primary_proc->node_id);
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return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
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}
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/**
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* pm_set_wakeup_source() - PM call to specify the wakeup source while suspended
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* @target Node id of the targeted PU or subsystem
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* @wkup_node Node id of the wakeup peripheral
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* @enable Enable or disable the specified peripheral as wake source
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_set_wakeup_source(enum pm_node_id target,
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enum pm_node_id wkup_node,
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unsigned int enable)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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PM_PACK_PAYLOAD4(payload, PM_SET_WAKEUP_SOURCE, target, wkup_node,
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enable);
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return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
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}
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/**
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* pm_system_shutdown() - PM call to request a system shutdown or restart
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* @type Shutdown or restart? 0=shutdown, 1=restart, 2=setscope
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* @subtype Scope: 0=APU-subsystem, 1=PS, 2=system
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_system_shutdown(unsigned int type, unsigned int subtype)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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if (type == PMF_SHUTDOWN_TYPE_SETSCOPE_ONLY) {
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/* Setting scope for subsequent PSCI reboot or shutdown */
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pm_shutdown_scope = subtype;
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return PM_RET_SUCCESS;
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}
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PM_PACK_PAYLOAD3(payload, PM_SYSTEM_SHUTDOWN, type, subtype);
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return pm_ipi_send_non_blocking(primary_proc, payload);
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}
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/* APIs for managing PM slaves: */
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/**
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* pm_req_node() - PM call to request a node with specific capabilities
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* @nid Node id of the slave
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* @capabilities Requested capabilities of the slave
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* @qos Quality of service (not supported)
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* @ack Flag to specify whether acknowledge is requested
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_req_node(enum pm_node_id nid,
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unsigned int capabilities,
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unsigned int qos,
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enum pm_request_ack ack)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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PM_PACK_PAYLOAD5(payload, PM_REQ_NODE, nid, capabilities, qos, ack);
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if (ack == REQ_ACK_BLOCKING) {
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return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
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} else {
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return pm_ipi_send(primary_proc, payload);
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}
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}
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/**
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* pm_set_requirement() - PM call to set requirement for PM slaves
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* @nid Node id of the slave
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* @capabilities Requested capabilities of the slave
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* @qos Quality of service (not supported)
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* @ack Flag to specify whether acknowledge is requested
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*
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* This API function is to be used for slaves a PU already has requested
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*
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* @return Returns status, either success or error+reason
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*/
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enum pm_ret_status pm_set_requirement(enum pm_node_id nid,
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unsigned int capabilities,
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unsigned int qos,
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enum pm_request_ack ack)
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{
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uint32_t payload[PAYLOAD_ARG_CNT];
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PM_PACK_PAYLOAD5(payload, PM_SET_REQUIREMENT, nid, capabilities, qos,
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ack);
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|
|
|
if (ack == REQ_ACK_BLOCKING) {
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
} else {
|
|
return pm_ipi_send(primary_proc, payload);
|
|
}
|
|
}
|
|
|
|
/* Miscellaneous API functions */
|
|
|
|
/**
|
|
* pm_get_api_version() - Get version number of PMU PM firmware
|
|
* @version Returns 32-bit version number of PMU Power Management Firmware
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_get_api_version(unsigned int *version)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD1(payload, PM_GET_API_VERSION);
|
|
return pm_ipi_send_sync(primary_proc, payload, version, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_get_node_status() - PM call to request a node's current status
|
|
* @nid Node id
|
|
* @ret_buff Buffer for the return values:
|
|
* [0] - Current power state of the node
|
|
* [1] - Current requirements for the node (slave nodes only)
|
|
* [2] - Current usage status for the node (slave nodes only)
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_get_node_status(enum pm_node_id nid,
|
|
uint32_t *ret_buff)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
PM_PACK_PAYLOAD2(payload, PM_GET_NODE_STATUS, nid);
|
|
return pm_ipi_send_sync(primary_proc, payload, ret_buff, 3);
|
|
}
|
|
|
|
/**
|
|
* pm_mmio_write() - Perform write to protected mmio
|
|
* @address Address to write to
|
|
* @mask Mask to apply
|
|
* @value Value to write
|
|
*
|
|
* This function provides access to PM-related control registers
|
|
* that may not be directly accessible by a particular PU.
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_mmio_write(uintptr_t address,
|
|
unsigned int mask,
|
|
unsigned int value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD4(payload, PM_MMIO_WRITE, address, mask, value);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_mmio_read() - Read value from protected mmio
|
|
* @address Address to write to
|
|
* @value Value to write
|
|
*
|
|
* This function provides access to PM-related control registers
|
|
* that may not be directly accessible by a particular PU.
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_mmio_read(uintptr_t address, unsigned int *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD2(payload, PM_MMIO_READ, address);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_fpga_load() - Load the bitstream into the PL.
|
|
*
|
|
* This function provides access to the xilfpga library to load
|
|
* the Bit-stream into PL.
|
|
*
|
|
* address_low: lower 32-bit Linear memory space address
|
|
*
|
|
* address_high: higher 32-bit Linear memory space address
|
|
*
|
|
* size: Number of 32bit words
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_fpga_load(uint32_t address_low,
|
|
uint32_t address_high,
|
|
uint32_t size,
|
|
uint32_t flags)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD5(payload, PM_FPGA_LOAD, address_high, address_low,
|
|
size, flags);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_fpga_get_status() - Read value from fpga status register
|
|
* @value Value to read
|
|
*
|
|
* This function provides access to the xilfpga library to get
|
|
* the fpga status
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_fpga_get_status(unsigned int *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD1(payload, PM_FPGA_GET_STATUS);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_get_chipid() - Read silicon ID registers
|
|
* @value Buffer for return values. Must be large enough
|
|
* to hold 8 bytes.
|
|
*
|
|
* @return Returns silicon ID registers
|
|
*/
|
|
enum pm_ret_status pm_get_chipid(uint32_t *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD1(payload, PM_GET_CHIPID);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 2);
|
|
}
|
|
|
|
/**
|
|
* pm_secure_rsaaes() - Load the secure images.
|
|
*
|
|
* This function provides access to the xilsecure library to load
|
|
* the authenticated, encrypted, and authenicated/encrypted images.
|
|
*
|
|
* address_low: lower 32-bit Linear memory space address
|
|
*
|
|
* address_high: higher 32-bit Linear memory space address
|
|
*
|
|
* size: Number of 32bit words
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_secure_rsaaes(uint32_t address_low,
|
|
uint32_t address_high,
|
|
uint32_t size,
|
|
uint32_t flags)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD5(payload, PM_SECURE_RSA_AES, address_high, address_low,
|
|
size, flags);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_aes_engine() - Aes data blob encryption/decryption
|
|
* This function provides access to the xilsecure library to
|
|
* encrypt/decrypt data blobs.
|
|
*
|
|
* address_low: lower 32-bit address of the AesParams structure
|
|
*
|
|
* address_high: higher 32-bit address of the AesParams structure
|
|
*
|
|
* value: Returned output value
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_aes_engine(uint32_t address_high,
|
|
uint32_t address_low,
|
|
uint32_t *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD3(payload, PM_SECURE_AES, address_high, address_low);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_get_callbackdata() - Read from IPI response buffer
|
|
* @data - array of PAYLOAD_ARG_CNT elements
|
|
*
|
|
* Read value from ipi buffer response buffer.
|
|
*/
|
|
void pm_get_callbackdata(uint32_t *data, size_t count)
|
|
{
|
|
/* Return if interrupt is not from PMU */
|
|
if (!pm_ipi_irq_status(primary_proc)) {
|
|
return;
|
|
}
|
|
|
|
pm_ipi_buff_read_callb(data, count);
|
|
pm_ipi_irq_clear(primary_proc);
|
|
}
|
|
|
|
/**
|
|
* pm_ioctl() - PM IOCTL API for device control and configs
|
|
* @node_id Node ID of the device
|
|
* @ioctl_id ID of the requested IOCTL
|
|
* @arg1 Argument 1 to requested IOCTL call
|
|
* @arg2 Argument 2 to requested IOCTL call
|
|
* @out Returned output value
|
|
*
|
|
* This function calls IOCTL to firmware for device control and configuration.
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_ioctl(enum pm_node_id nid,
|
|
unsigned int ioctl_id,
|
|
unsigned int arg1,
|
|
unsigned int arg2,
|
|
unsigned int *value)
|
|
{
|
|
return pm_api_ioctl(nid, ioctl_id, arg1, arg2, value);
|
|
}
|
|
|
|
/**
|
|
* fw_api_version() - Returns API version implemented in firmware
|
|
* @api_id API ID to check
|
|
* @version Returned supported API version
|
|
* @len Number of words to be returned
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
static enum pm_ret_status fw_api_version(uint32_t id, uint32_t *version,
|
|
uint32_t len)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
PM_PACK_PAYLOAD2(payload, PM_FEATURE_CHECK, id);
|
|
return pm_ipi_send_sync(primary_proc, payload, version, len);
|
|
}
|
|
|
|
/**
|
|
* check_api_dependency() - API to check dependent EEMI API version
|
|
* @id EEMI API ID to check
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status check_api_dependency(uint8_t id)
|
|
{
|
|
uint8_t i;
|
|
uint32_t version;
|
|
int ret;
|
|
|
|
for (i = 0U; i < ARRAY_SIZE(api_dep_table); i++) {
|
|
if (api_dep_table[i].id == id) {
|
|
if (api_dep_table[i].api_id == 0U) {
|
|
break;
|
|
}
|
|
|
|
ret = fw_api_version(api_dep_table[i].api_id,
|
|
&version, 1);
|
|
if (ret != PM_RET_SUCCESS) {
|
|
return ret;
|
|
}
|
|
|
|
/* Check if fw version matches ATF expected version */
|
|
if (version != atf_expected_ver_id[api_dep_table[i].api_id]) {
|
|
return PM_RET_ERROR_NOTSUPPORTED;
|
|
}
|
|
}
|
|
}
|
|
|
|
return PM_RET_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* feature_check_atf() - These are API's completely implemented in ATF
|
|
* @api_id API ID to check
|
|
* @version Returned supported API version
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
static enum pm_ret_status feature_check_atf(uint32_t api_id, uint32_t *version,
|
|
uint32_t *bit_mask)
|
|
{
|
|
switch (api_id) {
|
|
case PM_QUERY_DATA:
|
|
*version = ATF_API_BASE_VERSION;
|
|
bit_mask[0] = (uint32_t)(PM_QUERY_FEATURE_BITMASK);
|
|
bit_mask[1] = (uint32_t)(PM_QUERY_FEATURE_BITMASK >> 32);
|
|
return PM_RET_SUCCESS;
|
|
case PM_GET_CALLBACK_DATA:
|
|
case PM_GET_TRUSTZONE_VERSION:
|
|
case PM_SET_SUSPEND_MODE:
|
|
*version = ATF_API_BASE_VERSION;
|
|
return PM_RET_SUCCESS;
|
|
default:
|
|
return PM_RET_ERROR_NO_FEATURE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get_atf_version_for_partial_apis() - Return ATF version for partially
|
|
* implemented APIs
|
|
* @api_id API ID to check
|
|
* @version Returned supported API version
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
static enum pm_ret_status get_atf_version_for_partial_apis(uint32_t api_id,
|
|
uint32_t *version)
|
|
{
|
|
switch (api_id) {
|
|
case PM_SELF_SUSPEND:
|
|
case PM_REQ_WAKEUP:
|
|
case PM_ABORT_SUSPEND:
|
|
case PM_SET_WAKEUP_SOURCE:
|
|
case PM_SYSTEM_SHUTDOWN:
|
|
case PM_GET_API_VERSION:
|
|
case PM_CLOCK_ENABLE:
|
|
case PM_CLOCK_DISABLE:
|
|
case PM_CLOCK_GETSTATE:
|
|
case PM_CLOCK_SETDIVIDER:
|
|
case PM_CLOCK_GETDIVIDER:
|
|
case PM_CLOCK_SETPARENT:
|
|
case PM_CLOCK_GETPARENT:
|
|
case PM_PLL_SET_PARAMETER:
|
|
case PM_PLL_GET_PARAMETER:
|
|
case PM_PLL_SET_MODE:
|
|
case PM_PLL_GET_MODE:
|
|
case PM_REGISTER_ACCESS:
|
|
*version = ATF_API_BASE_VERSION;
|
|
return PM_RET_SUCCESS;
|
|
case PM_FEATURE_CHECK:
|
|
*version = FW_API_VERSION_2;
|
|
return PM_RET_SUCCESS;
|
|
default:
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* feature_check_partial() - These are API's partially implemented in
|
|
* ATF and firmware both
|
|
* @api_id API ID to check
|
|
* @version Returned supported API version
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
static enum pm_ret_status feature_check_partial(uint32_t api_id,
|
|
uint32_t *version)
|
|
{
|
|
uint32_t status;
|
|
|
|
switch (api_id) {
|
|
case PM_SELF_SUSPEND:
|
|
case PM_REQ_WAKEUP:
|
|
case PM_ABORT_SUSPEND:
|
|
case PM_SET_WAKEUP_SOURCE:
|
|
case PM_SYSTEM_SHUTDOWN:
|
|
case PM_GET_API_VERSION:
|
|
case PM_CLOCK_ENABLE:
|
|
case PM_CLOCK_DISABLE:
|
|
case PM_CLOCK_GETSTATE:
|
|
case PM_CLOCK_SETDIVIDER:
|
|
case PM_CLOCK_GETDIVIDER:
|
|
case PM_CLOCK_SETPARENT:
|
|
case PM_CLOCK_GETPARENT:
|
|
case PM_PLL_SET_PARAMETER:
|
|
case PM_PLL_GET_PARAMETER:
|
|
case PM_PLL_SET_MODE:
|
|
case PM_PLL_GET_MODE:
|
|
case PM_REGISTER_ACCESS:
|
|
case PM_FEATURE_CHECK:
|
|
status = check_api_dependency(api_id);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
return get_atf_version_for_partial_apis(api_id, version);
|
|
default:
|
|
return PM_RET_ERROR_NO_FEATURE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* pm_feature_check() - Returns the supported API version if supported
|
|
* @api_id API ID to check
|
|
* @version Returned supported API version
|
|
* @bit_mask Returned supported IOCTL id version
|
|
* @len Number of bytes to be returned in bit_mask variable
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_feature_check(uint32_t api_id, uint32_t *version,
|
|
uint32_t *bit_mask, uint8_t len)
|
|
{
|
|
uint32_t ret_payload[PAYLOAD_ARG_CNT] = {0U};
|
|
uint32_t status;
|
|
|
|
/* Get API version implemented in ATF */
|
|
status = feature_check_atf(api_id, version, bit_mask);
|
|
if (status != PM_RET_ERROR_NO_FEATURE) {
|
|
return status;
|
|
}
|
|
|
|
/* Get API version implemented by firmware and ATF both */
|
|
status = feature_check_partial(api_id, version);
|
|
if (status != PM_RET_ERROR_NO_FEATURE) {
|
|
return status;
|
|
}
|
|
|
|
/* Get API version implemented by firmware */
|
|
status = fw_api_version(api_id, ret_payload, 3);
|
|
/* IOCTL call may return failure whose ID is not implemented in
|
|
* firmware but implemented in ATF
|
|
*/
|
|
if ((api_id != PM_IOCTL) && (status != PM_RET_SUCCESS)) {
|
|
return status;
|
|
}
|
|
|
|
*version = ret_payload[0];
|
|
|
|
/* Update IOCTL bit mask which are implemented in ATF */
|
|
if (api_id == PM_IOCTL) {
|
|
if (len < 2) {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
bit_mask[0] = ret_payload[1];
|
|
bit_mask[1] = ret_payload[2];
|
|
/* Get IOCTL's implemented by ATF */
|
|
status = atf_ioctl_bitmask(bit_mask);
|
|
} else {
|
|
/* Requires for MISRA */
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* pm_clock_get_max_divisor - PM call to get max divisor
|
|
* @clock_id Clock ID
|
|
* @div_type Divisor ID (TYPE_DIV1 or TYPE_DIV2)
|
|
* @max_div Maximum supported divisor
|
|
*
|
|
* This function is used by master to get maximum supported value.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
static enum pm_ret_status pm_clock_get_max_divisor(unsigned int clock_id,
|
|
uint8_t div_type,
|
|
uint32_t *max_div)
|
|
{
|
|
return pm_api_clock_get_max_divisor(clock_id, div_type, max_div);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_get_num_clocks - PM call to request number of clocks
|
|
* @nclockss: Number of clocks
|
|
*
|
|
* This function is used by master to get number of clocks.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
static enum pm_ret_status pm_clock_get_num_clocks(uint32_t *nclocks)
|
|
{
|
|
return pm_api_clock_get_num_clocks(nclocks);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_get_name() - PM call to request a clock's name
|
|
* @clock_id Clock ID
|
|
* @name Name of clock (max 16 bytes)
|
|
*
|
|
* This function is used by master to get nmae of clock specified
|
|
* by given clock ID.
|
|
*/
|
|
static void pm_clock_get_name(unsigned int clock_id, char *name)
|
|
{
|
|
pm_api_clock_get_name(clock_id, name);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_get_topology() - PM call to request a clock's topology
|
|
* @clock_id Clock ID
|
|
* @index Topology index for next toplogy node
|
|
* @topology Buffer to store nodes in topology and flags
|
|
*
|
|
* This function is used by master to get topology information for the
|
|
* clock specified by given clock ID. Each response would return 3
|
|
* topology nodes. To get next nodes, caller needs to call this API with
|
|
* index of next node. Index starts from 0.
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
static enum pm_ret_status pm_clock_get_topology(unsigned int clock_id,
|
|
unsigned int index,
|
|
uint32_t *topology)
|
|
{
|
|
return pm_api_clock_get_topology(clock_id, index, topology);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_get_fixedfactor_params() - PM call to request a clock's fixed factor
|
|
* parameters for fixed clock
|
|
* @clock_id Clock ID
|
|
* @mul Multiplication value
|
|
* @div Divisor value
|
|
*
|
|
* This function is used by master to get fixed factor parameers for the
|
|
* fixed clock. This API is application only for the fixed clock.
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
static enum pm_ret_status pm_clock_get_fixedfactor_params(unsigned int clock_id,
|
|
uint32_t *mul,
|
|
uint32_t *div)
|
|
{
|
|
return pm_api_clock_get_fixedfactor_params(clock_id, mul, div);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_get_parents() - PM call to request a clock's first 3 parents
|
|
* @clock_id Clock ID
|
|
* @index Index of next parent
|
|
* @parents Parents of the given clock
|
|
*
|
|
* This function is used by master to get clock's parents information.
|
|
* This API will return 3 parents with a single response. To get other
|
|
* parents, master should call same API in loop with new parent index
|
|
* till error is returned.
|
|
*
|
|
* E.g First call should have index 0 which will return parents 0, 1 and
|
|
* 2. Next call, index should be 3 which will return parent 3,4 and 5 and
|
|
* so on.
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
static enum pm_ret_status pm_clock_get_parents(unsigned int clock_id,
|
|
unsigned int index,
|
|
uint32_t *parents)
|
|
{
|
|
return pm_api_clock_get_parents(clock_id, index, parents);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_get_attributes() - PM call to request a clock's attributes
|
|
* @clock_id Clock ID
|
|
* @attr Clock attributes
|
|
*
|
|
* This function is used by master to get clock's attributes
|
|
* (e.g. valid, clock type, etc).
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
static enum pm_ret_status pm_clock_get_attributes(unsigned int clock_id,
|
|
uint32_t *attr)
|
|
{
|
|
return pm_api_clock_get_attributes(clock_id, attr);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_gate() - Configure clock gate
|
|
* @clock_id Id of the clock to be configured
|
|
* @enable Flag 0=disable (gate the clock), !0=enable (activate the clock)
|
|
*
|
|
* @return Error if an argument is not valid or status as returned by the
|
|
* PM controller (PMU)
|
|
*/
|
|
static enum pm_ret_status pm_clock_gate(unsigned int clock_id,
|
|
unsigned char enable)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
enum pm_ret_status status;
|
|
enum pm_api_id api_id;
|
|
|
|
/* Check if clock ID is valid and return an error if it is not */
|
|
status = pm_clock_id_is_valid(clock_id);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
|
|
if (enable) {
|
|
api_id = PM_CLOCK_ENABLE;
|
|
} else {
|
|
api_id = PM_CLOCK_DISABLE;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD2(payload, api_id, clock_id);
|
|
status = pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
|
|
/* If action fails due to the lack of permissions filter the error */
|
|
if (status == PM_RET_ERROR_ACCESS) {
|
|
status = PM_RET_SUCCESS;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* pm_clock_enable() - Enable the clock for given id
|
|
* @clock_id: Id of the clock to be enabled
|
|
*
|
|
* This function is used by master to enable the clock
|
|
* including peripherals and PLL clocks.
|
|
*
|
|
* @return: Error if an argument is not valid or status as returned by the
|
|
* pm_clock_gate
|
|
*/
|
|
enum pm_ret_status pm_clock_enable(unsigned int clock_id)
|
|
{
|
|
struct pm_pll *pll;
|
|
|
|
/* First try to handle it as a PLL */
|
|
pll = pm_clock_get_pll(clock_id);
|
|
if (pll) {
|
|
return pm_clock_pll_enable(pll);
|
|
}
|
|
|
|
/* It's an on-chip clock, PMU should configure clock's gate */
|
|
return pm_clock_gate(clock_id, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_disable - Disable the clock for given id
|
|
* @clock_id: Id of the clock to be disable
|
|
*
|
|
* This function is used by master to disable the clock
|
|
* including peripherals and PLL clocks.
|
|
*
|
|
* @return: Error if an argument is not valid or status as returned by the
|
|
* pm_clock_gate
|
|
*/
|
|
enum pm_ret_status pm_clock_disable(unsigned int clock_id)
|
|
{
|
|
struct pm_pll *pll;
|
|
|
|
/* First try to handle it as a PLL */
|
|
pll = pm_clock_get_pll(clock_id);
|
|
if (pll) {
|
|
return pm_clock_pll_disable(pll);
|
|
}
|
|
|
|
/* It's an on-chip clock, PMU should configure clock's gate */
|
|
return pm_clock_gate(clock_id, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_getstate - Get the clock state for given id
|
|
* @clock_id: Id of the clock to be queried
|
|
* @state: 1/0 (Enabled/Disabled)
|
|
*
|
|
* This function is used by master to get the state of clock
|
|
* including peripherals and PLL clocks.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
enum pm_ret_status pm_clock_getstate(unsigned int clock_id,
|
|
unsigned int *state)
|
|
{
|
|
struct pm_pll *pll;
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
enum pm_ret_status status;
|
|
|
|
/* First try to handle it as a PLL */
|
|
pll = pm_clock_get_pll(clock_id);
|
|
if (pll)
|
|
return pm_clock_pll_get_state(pll, state);
|
|
|
|
/* Check if clock ID is a valid on-chip clock */
|
|
status = pm_clock_id_is_valid(clock_id);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD2(payload, PM_CLOCK_GETSTATE, clock_id);
|
|
return pm_ipi_send_sync(primary_proc, payload, state, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_setdivider - Set the clock divider for given id
|
|
* @clock_id: Id of the clock
|
|
* @divider: divider value
|
|
*
|
|
* This function is used by master to set divider for any clock
|
|
* to achieve desired rate.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
enum pm_ret_status pm_clock_setdivider(unsigned int clock_id,
|
|
unsigned int divider)
|
|
{
|
|
enum pm_ret_status status;
|
|
enum pm_node_id nid;
|
|
enum pm_clock_div_id div_id;
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
const uint32_t div0 = 0xFFFF0000;
|
|
const uint32_t div1 = 0x0000FFFF;
|
|
uint32_t val;
|
|
|
|
/* Get PLL node ID using PLL clock ID */
|
|
status = pm_clock_get_pll_node_id(clock_id, &nid);
|
|
if (status == PM_RET_SUCCESS) {
|
|
return pm_pll_set_parameter(nid, PM_PLL_PARAM_FBDIV, divider);
|
|
}
|
|
|
|
/* Check if clock ID is a valid on-chip clock */
|
|
status = pm_clock_id_is_valid(clock_id);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
|
|
if (div0 == (divider & div0)) {
|
|
div_id = PM_CLOCK_DIV0_ID;
|
|
val = divider & ~div0;
|
|
} else if (div1 == (divider & div1)) {
|
|
div_id = PM_CLOCK_DIV1_ID;
|
|
val = (divider & ~div1) >> 16;
|
|
} else {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD4(payload, PM_CLOCK_SETDIVIDER, clock_id, div_id, val);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_getdivider - Get the clock divider for given id
|
|
* @clock_id: Id of the clock
|
|
* @divider: divider value
|
|
*
|
|
* This function is used by master to get divider values
|
|
* for any clock.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
enum pm_ret_status pm_clock_getdivider(unsigned int clock_id,
|
|
unsigned int *divider)
|
|
{
|
|
enum pm_ret_status status;
|
|
enum pm_node_id nid;
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
uint32_t val;
|
|
|
|
/* Get PLL node ID using PLL clock ID */
|
|
status = pm_clock_get_pll_node_id(clock_id, &nid);
|
|
if (status == PM_RET_SUCCESS) {
|
|
return pm_pll_get_parameter(nid, PM_PLL_PARAM_FBDIV, divider);
|
|
}
|
|
|
|
/* Check if clock ID is a valid on-chip clock */
|
|
status = pm_clock_id_is_valid(clock_id);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
|
|
if (pm_clock_has_div(clock_id, PM_CLOCK_DIV0_ID)) {
|
|
/* Send request to the PMU to get div0 */
|
|
PM_PACK_PAYLOAD3(payload, PM_CLOCK_GETDIVIDER, clock_id,
|
|
PM_CLOCK_DIV0_ID);
|
|
status = pm_ipi_send_sync(primary_proc, payload, &val, 1);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
*divider = val;
|
|
}
|
|
|
|
if (pm_clock_has_div(clock_id, PM_CLOCK_DIV1_ID)) {
|
|
/* Send request to the PMU to get div1 */
|
|
PM_PACK_PAYLOAD3(payload, PM_CLOCK_GETDIVIDER, clock_id,
|
|
PM_CLOCK_DIV1_ID);
|
|
status = pm_ipi_send_sync(primary_proc, payload, &val, 1);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
*divider |= val << 16;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* pm_clock_setrate - Set the clock rate for given id
|
|
* @clock_id: Id of the clock
|
|
* @rate: rate value in hz
|
|
*
|
|
* This function is used by master to set rate for any clock.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
enum pm_ret_status pm_clock_setrate(unsigned int clock_id,
|
|
uint64_t rate)
|
|
{
|
|
return PM_RET_ERROR_NOTSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
* pm_clock_getrate - Get the clock rate for given id
|
|
* @clock_id: Id of the clock
|
|
* @rate: rate value in hz
|
|
*
|
|
* This function is used by master to get rate
|
|
* for any clock.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
enum pm_ret_status pm_clock_getrate(unsigned int clock_id,
|
|
uint64_t *rate)
|
|
{
|
|
return PM_RET_ERROR_NOTSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
* pm_clock_setparent - Set the clock parent for given id
|
|
* @clock_id: Id of the clock
|
|
* @parent_index: Index of the parent clock into clock's parents array
|
|
*
|
|
* This function is used by master to set parent for any clock.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
enum pm_ret_status pm_clock_setparent(unsigned int clock_id,
|
|
unsigned int parent_index)
|
|
{
|
|
struct pm_pll *pll;
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
enum pm_ret_status status;
|
|
|
|
/* First try to handle it as a PLL */
|
|
pll = pm_clock_get_pll_by_related_clk(clock_id);
|
|
if (pll) {
|
|
return pm_clock_pll_set_parent(pll, clock_id, parent_index);
|
|
}
|
|
|
|
/* Check if clock ID is a valid on-chip clock */
|
|
status = pm_clock_id_is_valid(clock_id);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD3(payload, PM_CLOCK_SETPARENT, clock_id, parent_index);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_clock_getparent - Get the clock parent for given id
|
|
* @clock_id: Id of the clock
|
|
* @parent_index: parent index
|
|
*
|
|
* This function is used by master to get parent index
|
|
* for any clock.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
enum pm_ret_status pm_clock_getparent(unsigned int clock_id,
|
|
unsigned int *parent_index)
|
|
{
|
|
struct pm_pll *pll;
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
enum pm_ret_status status;
|
|
|
|
/* First try to handle it as a PLL */
|
|
pll = pm_clock_get_pll_by_related_clk(clock_id);
|
|
if (pll) {
|
|
return pm_clock_pll_get_parent(pll, clock_id, parent_index);
|
|
}
|
|
|
|
/* Check if clock ID is a valid on-chip clock */
|
|
status = pm_clock_id_is_valid(clock_id);
|
|
if (status != PM_RET_SUCCESS) {
|
|
return status;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD2(payload, PM_CLOCK_GETPARENT, clock_id);
|
|
return pm_ipi_send_sync(primary_proc, payload, parent_index, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_pinctrl_get_num_pins - PM call to request number of pins
|
|
* @npins: Number of pins
|
|
*
|
|
* This function is used by master to get number of pins
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
static enum pm_ret_status pm_pinctrl_get_num_pins(uint32_t *npins)
|
|
{
|
|
return pm_api_pinctrl_get_num_pins(npins);
|
|
}
|
|
|
|
/**
|
|
* pm_pinctrl_get_num_functions - PM call to request number of functions
|
|
* @nfuncs: Number of functions
|
|
*
|
|
* This function is used by master to get number of functions
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
static enum pm_ret_status pm_pinctrl_get_num_functions(uint32_t *nfuncs)
|
|
{
|
|
return pm_api_pinctrl_get_num_functions(nfuncs);
|
|
}
|
|
|
|
/**
|
|
* pm_pinctrl_get_num_function_groups - PM call to request number of
|
|
* function groups
|
|
* @fid: Id of function
|
|
* @ngroups: Number of function groups
|
|
*
|
|
* This function is used by master to get number of function groups specified
|
|
* by given function Id
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
static enum pm_ret_status pm_pinctrl_get_num_function_groups(unsigned int fid,
|
|
uint32_t *ngroups)
|
|
{
|
|
return pm_api_pinctrl_get_num_func_groups(fid, ngroups);
|
|
}
|
|
|
|
/**
|
|
* pm_pinctrl_get_function_name - PM call to request function name
|
|
* @fid: Id of function
|
|
* @name: Name of function
|
|
*
|
|
* This function is used by master to get name of function specified
|
|
* by given function Id
|
|
*/
|
|
static void pm_pinctrl_get_function_name(unsigned int fid, char *name)
|
|
{
|
|
pm_api_pinctrl_get_function_name(fid, name);
|
|
}
|
|
|
|
/**
|
|
* pm_pinctrl_get_function_groups - PM call to request function groups
|
|
* @fid: Id of function
|
|
* @index: Index of next function groups
|
|
* @groups: Function groups
|
|
*
|
|
* This function is used by master to get function groups specified
|
|
* by given function Id. This API will return 6 function groups with
|
|
* a single response. To get other function groups, master should call
|
|
* same API in loop with new function groups index till error is returned.
|
|
*
|
|
* E.g First call should have index 0 which will return function groups
|
|
* 0, 1, 2, 3, 4 and 5. Next call, index should be 6 which will return
|
|
* function groups 6, 7, 8, 9, 10 and 11 and so on.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
static enum pm_ret_status pm_pinctrl_get_function_groups(unsigned int fid,
|
|
unsigned int index,
|
|
uint16_t *groups)
|
|
{
|
|
return pm_api_pinctrl_get_function_groups(fid, index, groups);
|
|
}
|
|
|
|
/**
|
|
* pm_pinctrl_get_pin_groups - PM call to request pin groups
|
|
* @pin_id: Id of pin
|
|
* @index: Index of next pin groups
|
|
* @groups: pin groups
|
|
*
|
|
* This function is used by master to get pin groups specified
|
|
* by given pin Id. This API will return 6 pin groups with
|
|
* a single response. To get other pin groups, master should call
|
|
* same API in loop with new pin groups index till error is returned.
|
|
*
|
|
* E.g First call should have index 0 which will return pin groups
|
|
* 0, 1, 2, 3, 4 and 5. Next call, index should be 6 which will return
|
|
* pin groups 6, 7, 8, 9, 10 and 11 and so on.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
static enum pm_ret_status pm_pinctrl_get_pin_groups(unsigned int pin_id,
|
|
unsigned int index,
|
|
uint16_t *groups)
|
|
{
|
|
return pm_api_pinctrl_get_pin_groups(pin_id, index, groups);
|
|
}
|
|
|
|
/**
|
|
* pm_query_data() - PM API for querying firmware data
|
|
* @arg1 Argument 1 to requested IOCTL call
|
|
* @arg2 Argument 2 to requested IOCTL call
|
|
* @arg3 Argument 3 to requested IOCTL call
|
|
* @arg4 Argument 4 to requested IOCTL call
|
|
* @data Returned output data
|
|
*
|
|
* This function returns requested data.
|
|
*/
|
|
void pm_query_data(enum pm_query_id qid, unsigned int arg1, unsigned int arg2,
|
|
unsigned int arg3, unsigned int *data)
|
|
{
|
|
switch (qid) {
|
|
case PM_QID_CLOCK_GET_NAME:
|
|
pm_clock_get_name(arg1, (char *)data);
|
|
break;
|
|
case PM_QID_CLOCK_GET_TOPOLOGY:
|
|
data[0] = pm_clock_get_topology(arg1, arg2, &data[1]);
|
|
break;
|
|
case PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS:
|
|
data[0] = pm_clock_get_fixedfactor_params(arg1, &data[1],
|
|
&data[2]);
|
|
break;
|
|
case PM_QID_CLOCK_GET_PARENTS:
|
|
data[0] = pm_clock_get_parents(arg1, arg2, &data[1]);
|
|
break;
|
|
case PM_QID_CLOCK_GET_ATTRIBUTES:
|
|
data[0] = pm_clock_get_attributes(arg1, &data[1]);
|
|
break;
|
|
case PM_QID_PINCTRL_GET_NUM_PINS:
|
|
data[0] = pm_pinctrl_get_num_pins(&data[1]);
|
|
break;
|
|
case PM_QID_PINCTRL_GET_NUM_FUNCTIONS:
|
|
data[0] = pm_pinctrl_get_num_functions(&data[1]);
|
|
break;
|
|
case PM_QID_PINCTRL_GET_NUM_FUNCTION_GROUPS:
|
|
data[0] = pm_pinctrl_get_num_function_groups(arg1, &data[1]);
|
|
break;
|
|
case PM_QID_PINCTRL_GET_FUNCTION_NAME:
|
|
pm_pinctrl_get_function_name(arg1, (char *)data);
|
|
break;
|
|
case PM_QID_PINCTRL_GET_FUNCTION_GROUPS:
|
|
data[0] = pm_pinctrl_get_function_groups(arg1, arg2,
|
|
(uint16_t *)&data[1]);
|
|
break;
|
|
case PM_QID_PINCTRL_GET_PIN_GROUPS:
|
|
data[0] = pm_pinctrl_get_pin_groups(arg1, arg2,
|
|
(uint16_t *)&data[1]);
|
|
break;
|
|
case PM_QID_CLOCK_GET_NUM_CLOCKS:
|
|
data[0] = pm_clock_get_num_clocks(&data[1]);
|
|
break;
|
|
|
|
case PM_QID_CLOCK_GET_MAX_DIVISOR:
|
|
data[0] = pm_clock_get_max_divisor(arg1, arg2, &data[1]);
|
|
break;
|
|
default:
|
|
data[0] = PM_RET_ERROR_ARGS;
|
|
WARN("Unimplemented query service call: 0x%x\n", qid);
|
|
break;
|
|
}
|
|
}
|
|
|
|
enum pm_ret_status pm_sha_hash(uint32_t address_high,
|
|
uint32_t address_low,
|
|
uint32_t size,
|
|
uint32_t flags)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD5(payload, PM_SECURE_SHA, address_high, address_low,
|
|
size, flags);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
enum pm_ret_status pm_rsa_core(uint32_t address_high,
|
|
uint32_t address_low,
|
|
uint32_t size,
|
|
uint32_t flags)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD5(payload, PM_SECURE_RSA, address_high, address_low,
|
|
size, flags);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
enum pm_ret_status pm_secure_image(uint32_t address_low,
|
|
uint32_t address_high,
|
|
uint32_t key_lo,
|
|
uint32_t key_hi,
|
|
uint32_t *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD5(payload, PM_SECURE_IMAGE, address_high, address_low,
|
|
key_hi, key_lo);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 2);
|
|
}
|
|
|
|
/**
|
|
* pm_fpga_read - Perform the fpga configuration readback
|
|
*
|
|
* @reg_numframes: Configuration register offset (or) Number of frames to read
|
|
* @address_low: lower 32-bit Linear memory space address
|
|
* @address_high: higher 32-bit Linear memory space address
|
|
* @readback_type: Type of fpga readback operation
|
|
* 0 -- Configuration Register readback
|
|
* 1 -- Configuration Data readback
|
|
* @value: Value to read
|
|
*
|
|
* This function provides access to the xilfpga library to read
|
|
* the PL configuration.
|
|
*
|
|
* Return: Returns status, either success or error+reason.
|
|
*/
|
|
enum pm_ret_status pm_fpga_read(uint32_t reg_numframes,
|
|
uint32_t address_low,
|
|
uint32_t address_high,
|
|
uint32_t readback_type,
|
|
uint32_t *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD5(payload, PM_FPGA_READ, reg_numframes, address_low,
|
|
address_high, readback_type);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|
|
|
|
/*
|
|
* pm_pll_set_parameter() - Set the PLL parameter value
|
|
* @nid Node id of the target PLL
|
|
* @param_id ID of the PLL parameter
|
|
* @value Parameter value to be set
|
|
*
|
|
* Setting the parameter will have physical effect once the PLL mode is set to
|
|
* integer or fractional.
|
|
*
|
|
* @return Error if an argument is not valid or status as returned by the
|
|
* PM controller (PMU)
|
|
*/
|
|
enum pm_ret_status pm_pll_set_parameter(enum pm_node_id nid,
|
|
enum pm_pll_param param_id,
|
|
unsigned int value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Check if given node ID is a PLL node */
|
|
if (nid < NODE_APLL || nid > NODE_IOPLL) {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
|
|
/* Check if parameter ID is valid and return an error if it's not */
|
|
if (param_id >= PM_PLL_PARAM_MAX) {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD4(payload, PM_PLL_SET_PARAMETER, nid, param_id, value);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_pll_get_parameter() - Get the PLL parameter value
|
|
* @nid Node id of the target PLL
|
|
* @param_id ID of the PLL parameter
|
|
* @value Location to store the parameter value
|
|
*
|
|
* @return Error if an argument is not valid or status as returned by the
|
|
* PM controller (PMU)
|
|
*/
|
|
enum pm_ret_status pm_pll_get_parameter(enum pm_node_id nid,
|
|
enum pm_pll_param param_id,
|
|
unsigned int *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Check if given node ID is a PLL node */
|
|
if (nid < NODE_APLL || nid > NODE_IOPLL) {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
|
|
/* Check if parameter ID is valid and return an error if it's not */
|
|
if (param_id >= PM_PLL_PARAM_MAX) {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD3(payload, PM_PLL_GET_PARAMETER, nid, param_id);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_pll_set_mode() - Set the PLL mode
|
|
* @nid Node id of the target PLL
|
|
* @mode PLL mode to be set
|
|
*
|
|
* If reset mode is set the PM controller will first bypass the PLL and then
|
|
* assert the reset. If integer or fractional mode is set the PM controller will
|
|
* ensure that the complete PLL programming sequence is satisfied. After this
|
|
* function returns success the PLL is locked and its bypass is deasserted.
|
|
*
|
|
* @return Error if an argument is not valid or status as returned by the
|
|
* PM controller (PMU)
|
|
*/
|
|
enum pm_ret_status pm_pll_set_mode(enum pm_node_id nid, enum pm_pll_mode mode)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Check if given node ID is a PLL node */
|
|
if (nid < NODE_APLL || nid > NODE_IOPLL) {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
|
|
/* Check if PLL mode is valid */
|
|
if (mode >= PM_PLL_MODE_MAX) {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD3(payload, PM_PLL_SET_MODE, nid, mode);
|
|
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
|
|
}
|
|
|
|
/**
|
|
* pm_pll_get_mode() - Get the PLL mode
|
|
* @nid Node id of the target PLL
|
|
* @mode Location to store the mode of the PLL
|
|
*
|
|
* @return Error if an argument is not valid or status as returned by the
|
|
* PM controller (PMU)
|
|
*/
|
|
enum pm_ret_status pm_pll_get_mode(enum pm_node_id nid, enum pm_pll_mode *mode)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Check if given node ID is a PLL node */
|
|
if (nid < NODE_APLL || nid > NODE_IOPLL) {
|
|
return PM_RET_ERROR_ARGS;
|
|
}
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD2(payload, PM_PLL_GET_MODE, nid);
|
|
return pm_ipi_send_sync(primary_proc, payload, mode, 1);
|
|
}
|
|
|
|
/**
|
|
* pm_register_access() - PM API for register read/write access data
|
|
*
|
|
* @register_access_id Register_access_id which says register read/write
|
|
*
|
|
* @address Address of the register to be accessed
|
|
*
|
|
* @mask Mask value to be used while writing value
|
|
*
|
|
* @value Value to be written to register
|
|
*
|
|
* @out Returned output data
|
|
*
|
|
* This function returns requested data.
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*/
|
|
enum pm_ret_status pm_register_access(unsigned int register_access_id,
|
|
unsigned int address,
|
|
unsigned int mask,
|
|
unsigned int value,
|
|
unsigned int *out)
|
|
{
|
|
enum pm_ret_status ret;
|
|
|
|
if (((ZYNQMP_CSU_BASEADDR & address) != ZYNQMP_CSU_BASEADDR) &&
|
|
((CSUDMA_BASE & address) != CSUDMA_BASE) &&
|
|
((RSA_CORE_BASE & address) != RSA_CORE_BASE) &&
|
|
((PMU_GLOBAL_BASE & address) != PMU_GLOBAL_BASE)) {
|
|
return PM_RET_ERROR_ACCESS;
|
|
}
|
|
|
|
switch (register_access_id) {
|
|
case CONFIG_REG_WRITE:
|
|
ret = pm_mmio_write(address, mask, value);
|
|
break;
|
|
case CONFIG_REG_READ:
|
|
ret = pm_mmio_read(address, out);
|
|
break;
|
|
default:
|
|
ret = PM_RET_ERROR_ARGS;
|
|
WARN("Unimplemented register_access call\n\r");
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* pm_efuse_access() - To program or read efuse bits.
|
|
*
|
|
* This function provides access to the xilskey library to program/read
|
|
* efuse bits.
|
|
*
|
|
* address_low: lower 32-bit Linear memory space address
|
|
* address_high: higher 32-bit Linear memory space address
|
|
*
|
|
* value: Returned output value
|
|
*
|
|
* @return Returns status, either success or error+reason
|
|
*
|
|
*/
|
|
enum pm_ret_status pm_efuse_access(uint32_t address_high,
|
|
uint32_t address_low,
|
|
uint32_t *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
PM_PACK_PAYLOAD3(payload, PM_EFUSE_ACCESS, address_high, address_low);
|
|
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|
|
|
|
enum pm_ret_status em_set_action(unsigned int *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
EM_PACK_PAYLOAD1(payload, EM_SET_ACTION);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|
|
|
|
enum pm_ret_status em_remove_action(unsigned int *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
EM_PACK_PAYLOAD1(payload, EM_REMOVE_ACTION);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|
|
|
|
enum pm_ret_status em_send_errors(unsigned int *value)
|
|
{
|
|
uint32_t payload[PAYLOAD_ARG_CNT];
|
|
|
|
/* Send request to the PMU */
|
|
EM_PACK_PAYLOAD1(payload, EM_SEND_ERRORS);
|
|
return pm_ipi_send_sync(primary_proc, payload, value, 1);
|
|
}
|