include/hw/misc/iotkit-sysctl.h

   1 /*
   2  * ARM IoTKit system control element
   3  *
   4  * Copyright (c) 2018 Linaro Limited
   5  * Written by Peter Maydell
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 or
   9  *  (at your option) any later version.
  10  */
  11
  12 /*
  13  * This is a model of the "system control element" which is part of the
  14  * Arm IoTKit and documented in
  15  * http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ecm0601256/index.html
  16  * Specifically, it implements the "system information block" and
  17  * "system control register" blocks.
  18  *
  19  * QEMU interface:
  20  *  + QOM property "SYS_VERSION": value of the SYS_VERSION register of the
  21  *    system information block of the SSE
  22  *    (used to identify whether to provide SSE-200-only registers)
  23  *  + sysbus MMIO region 0: the system information register bank
  24  *  + sysbus MMIO region 1: the system control register bank
  25  */
  26
  27 #ifndef HW_MISC_IOTKIT_SYSCTL_H
  28 #define HW_MISC_IOTKIT_SYSCTL_H
  29
  30 #include "hw/sysbus.h"
  31
  32 #define TYPE_IOTKIT_SYSCTL "iotkit-sysctl"
  33 #define IOTKIT_SYSCTL(obj) OBJECT_CHECK(IoTKitSysCtl, (obj), \
  34                                         TYPE_IOTKIT_SYSCTL)
  35
  36 typedef struct IoTKitSysCtl {
  37     /*< private >*/
  38     SysBusDevice parent_obj;
  39
  40     /*< public >*/
  41     MemoryRegion iomem;
  42
  43     uint32_t secure_debug;
  44     uint32_t reset_syndrome;
  45     uint32_t reset_mask;
  46     uint32_t gretreg;
  47     uint32_t initsvtor0;
  48     uint32_t cpuwait;
  49     uint32_t wicctrl;
  50     uint32_t scsecctrl;
  51     uint32_t fclk_div;
  52     uint32_t sysclk_div;
  53     uint32_t clock_force;
  54     uint32_t initsvtor1;
  55     uint32_t nmi_enable;
  56     uint32_t ewctrl;
  57     uint32_t pdcm_pd_sys_sense;
  58     uint32_t pdcm_pd_sram0_sense;
  59     uint32_t pdcm_pd_sram1_sense;
  60     uint32_t pdcm_pd_sram2_sense;
  61     uint32_t pdcm_pd_sram3_sense;
  62
  63     /* Properties */
  64     uint32_t sys_version;
  65     uint32_t cpuwait_rst;
  66     uint32_t initsvtor0_rst;
  67     uint32_t initsvtor1_rst;
  68
  69     bool is_sse200;
  70 } IoTKitSysCtl;
  71
  72 #endif