LXR qemu/include/hw/misc/sifive_e

   1/*
   2 * QEMU SiFive E PRCI (Power, Reset, Clock, Interrupt) interface
   3 *
   4 * Copyright (c) 2017 SiFive, Inc.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2 or later, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 *
  15 * You should have received a copy of the GNU General Public License along with
  16 * this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19#ifndef HW_SIFIVE_E_PRCI_H
  20#define HW_SIFIVE_E_PRCI_H
  21#include "qom/object.h"
  22
  23enum {
  24    SIFIVE_E_PRCI_HFROSCCFG = 0x0,
  25    SIFIVE_E_PRCI_HFXOSCCFG = 0x4,
  26    SIFIVE_E_PRCI_PLLCFG    = 0x8,
  27    SIFIVE_E_PRCI_PLLOUTDIV = 0xC
  28};
  29
  30enum {
  31    SIFIVE_E_PRCI_HFROSCCFG_RDY = (1 << 31),
  32    SIFIVE_E_PRCI_HFROSCCFG_EN  = (1 << 30)
  33};
  34
  35enum {
  36    SIFIVE_E_PRCI_HFXOSCCFG_RDY = (1 << 31),
  37    SIFIVE_E_PRCI_HFXOSCCFG_EN  = (1 << 30)
  38};
  39
  40enum {
  41    SIFIVE_E_PRCI_PLLCFG_PLLSEL = (1 << 16),
  42    SIFIVE_E_PRCI_PLLCFG_REFSEL = (1 << 17),
  43    SIFIVE_E_PRCI_PLLCFG_BYPASS = (1 << 18),
  44    SIFIVE_E_PRCI_PLLCFG_LOCK   = (1 << 31)
  45};
  46
  47enum {
  48    SIFIVE_E_PRCI_PLLOUTDIV_DIV1 = (1 << 8)
  49};
  50
  51#define SIFIVE_E_PRCI_REG_SIZE  0x1000
  52
  53#define TYPE_SIFIVE_E_PRCI      "riscv.sifive.e.prci"
  54
  55typedef struct SiFiveEPRCIState SiFiveEPRCIState;
  56DECLARE_INSTANCE_CHECKER(SiFiveEPRCIState, SIFIVE_E_PRCI,
  57                         TYPE_SIFIVE_E_PRCI)
  58
  59struct SiFiveEPRCIState {
  60    /*< private >*/
  61    SysBusDevice parent_obj;
  62
  63    /*< public >*/
  64    MemoryRegion mmio;
  65    uint32_t hfrosccfg;
  66    uint32_t hfxosccfg;
  67    uint32_t pllcfg;
  68    uint32_t plloutdiv;
  69};
  70
  71DeviceState *sifive_e_prci_create(hwaddr addr);
  72
  73#endif
  74