5ad6dc1280
-Added PLL nodes (PLLs are PM slaves) -Implemented PLL's FSM in pm_pll.h/c -Added PmRequirement structures for APU and RPU_0, both can request any PLL for usage -Implemented saving of FPD PLLs' context and powering down FPD PLLs before FPD gets powered down (this is PLL suspend) -Implemented restoring of PLL states when PLL is needed for usage if FPD has been powered down (this is PLL resume) Signed-off-by: Mirela Simonovic <mirela.simonovic@aggios.com> Acked-by: Jyotheeswar Reddy Mutthareddyvari <jyothee@xilinx.com>
119 lines
4.3 KiB
C
119 lines
4.3 KiB
C
/*
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* Copyright (C) 2014 - 2015 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Use of the Software is limited solely to applications:
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* (a) running on a Xilinx device, or
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* (b) that interact with a Xilinx device through a bus or interconnect.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* in advertising or otherwise to promote the sale, use or other dealings in
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* this Software without prior written authorization from Xilinx.
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*/
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/*********************************************************************
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* Pm Node related structures and definitions
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*********************************************************************/
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#ifndef PM_NODE_H_
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#define PM_NODE_H_
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#include "pm_defs.h"
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#include "pm_common.h"
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#include "xil_types.h"
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#include "xstatus.h"
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typedef u8 PmNodeId;
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typedef u8 PmStateId;
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typedef u8 PmTransitionId;
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typedef u8 PmNodeTypeId;
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/* Forward declaration */
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typedef struct PmPower PmPower;
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typedef struct PmNode PmNode;
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/* Function pointer for wake/sleep transition functions */
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typedef int (*const PmNodeTranHandler)(PmNode* const nodePtr);
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/*********************************************************************
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* Macros
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********************************************************************/
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/* Node types */
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#define PM_TYPE_PROC 1U
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#define PM_TYPE_PWR_ISLAND 2U
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#define PM_TYPE_PWR_DOMAIN 3U
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#define PM_TYPE_SLAVE 4U
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#define PM_TYPE_SRAM (PM_TYPE_SLAVE + 0U)
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#define PM_TYPE_USB (PM_TYPE_SLAVE + 1U)
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#define PM_TYPE_GPU_PP (PM_TYPE_SLAVE + 2U)
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#define PM_TYPE_TTC (PM_TYPE_SLAVE + 3U)
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#define PM_TYPE_SATA (PM_TYPE_SLAVE + 4U)
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#define PM_TYPE_PLL (PM_TYPE_SLAVE + 5U)
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#define IS_PROC(type) (PM_TYPE_PROC == type)
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#define IS_POWER(type) ((PM_TYPE_PWR_ISLAND == type) || \
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(PM_TYPE_PWR_DOMAIN == type))
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#define IS_SLAVE(type) (type >= PM_TYPE_SLAVE)
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#define IS_OFF(nodePtr) (0U == BIT0((nodePtr)->currState))
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#define HAS_SLEEP(opsPtr) ((NULL != opsPtr) && (NULL != (opsPtr)->sleep))
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/*********************************************************************
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* Structure definitions
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********************************************************************/
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/**
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* PmNodeOps - Node operations
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* @sleep Put node into sleep (what the sleep is depends on node's type)
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* @wake Wake up this node (procedure depends on node type)
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*/
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typedef struct PmNodeOps {
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PmNodeTranHandler sleep;
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PmNodeTranHandler wake;
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} PmNodeOps;
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/**
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* PmNode - Structure common for all entities that have node id
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* @derived Pointer to a derived node type structure
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* @nodeId Node id defined in pm_defs.h
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* @typeId Type id, used to distinguish the nodes
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* @parent Pointer to power parent node
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* @currState Id of the node's current state. Interpretation depends on type
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* of the node, bit 0 value is reserved for off states
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* @ops Pointer to the operations structure
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*/
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typedef struct PmNode {
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void* const derived;
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const PmNodeId nodeId;
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const PmNodeTypeId typeId;
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PmPower* const parent;
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PmStateId currState;
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const PmNodeOps* const ops;
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} PmNode;
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/*********************************************************************
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* Function declarations
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********************************************************************/
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PmNode* PmGetNodeById(const u32 nodeId);
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#endif /* PM_NODE_H_ */
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