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/*
* ARM SSE (Subsystems for Embedded): IoTKit
*
* Copyright (c) 2018 Linaro Limited
* Written by Peter Maydell
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or
* (at your option) any later version.
*/
/*
* This is a model of the Arm "Subsystems for Embedded" family of
* hardware, which include the IoT Kit and the SSE-050, SSE-100 and
* SSE-200. Currently we model only the Arm IoT Kit which is documented in
* http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ecm0601256/index.html
* It contains:
* a Cortex-M33
* the IDAU
* some timers and watchdogs
* two peripheral protection controllers
* a memory protection controller
* a security controller
* a bus fabric which arranges that some parts of the address
* space are secure and non-secure aliases of each other
*
* QEMU interface:
* + QOM property "memory" is a MemoryRegion containing the devices provided
* by the board model.
* + QOM property "MAINCLK" is the frequency of the main system clock
* + QOM property "EXP_NUMIRQ" sets the number of expansion interrupts
* + Named GPIO inputs "EXP_IRQ" 0..n are the expansion interrupts, which
* are wired to the NVIC lines 32 .. n+32
* + sysbus MMIO region 0 is the "AHB Slave Expansion" which allows
* bus master devices in the board model to make transactions into
* all the devices and memory areas in the IoTKit
* Controlling up to 4 AHB expansion PPBs which a system using the IoTKit
* might provide:
* + named GPIO outputs apb_ppcexp{0,1,2,3}_nonsec[0..15]
* + named GPIO outputs apb_ppcexp{0,1,2,3}_ap[0..15]
* + named GPIO outputs apb_ppcexp{0,1,2,3}_irq_enable
* + named GPIO outputs apb_ppcexp{0,1,2,3}_irq_clear
* + named GPIO inputs apb_ppcexp{0,1,2,3}_irq_status
* Controlling each of the 4 expansion AHB PPCs which a system using the IoTKit
* might provide:
* + named GPIO outputs ahb_ppcexp{0,1,2,3}_nonsec[0..15]
* + named GPIO outputs ahb_ppcexp{0,1,2,3}_ap[0..15]
* + named GPIO outputs ahb_ppcexp{0,1,2,3}_irq_enable
* + named GPIO outputs ahb_ppcexp{0,1,2,3}_irq_clear
* + named GPIO inputs ahb_ppcexp{0,1,2,3}_irq_status
* Controlling each of the 16 expansion MPCs which a system using the IoTKit
* might provide:
* + named GPIO inputs mpcexp_status[0..15]
* Controlling each of the 16 expansion MSCs which a system using the IoTKit
* might provide:
* + named GPIO inputs mscexp_status[0..15]
* + named GPIO outputs mscexp_clear[0..15]
* + named GPIO outputs mscexp_ns[0..15]
*/
#ifndef IOTKIT_H
#define IOTKIT_H
#include "hw/sysbus.h"
#include "hw/arm/armv7m.h"
#include "hw/misc/iotkit-secctl.h"
#include "hw/misc/tz-ppc.h"
#include "hw/misc/tz-mpc.h"
#include "hw/timer/cmsdk-apb-timer.h"
#include "hw/timer/cmsdk-apb-dualtimer.h"
#include "hw/watchdog/cmsdk-apb-watchdog.h"
#include "hw/misc/iotkit-sysctl.h"
#include "hw/misc/iotkit-sysinfo.h"
#include "hw/or-irq.h"
#include "hw/core/split-irq.h"
#define TYPE_ARMSSE "arm-sse"
#define ARMSSE(obj) OBJECT_CHECK(ARMSSE, (obj), TYPE_ARMSSE)
/*
* These type names are for specific IoTKit subsystems; other than
* instantiating them, code using these devices should always handle
* them via the ARMSSE base class, so they have no IOTKIT() etc macros.
*/
#define TYPE_IOTKIT "iotkit"
/* We have an IRQ splitter and an OR gate input for each external PPC
* and the 2 internal PPCs
*/
#define NUM_EXTERNAL_PPCS (IOTS_NUM_AHB_EXP_PPC + IOTS_NUM_APB_EXP_PPC)
#define NUM_PPCS (NUM_EXTERNAL_PPCS + 2)
typedef struct ARMSSE {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
ARMv7MState armv7m;
IoTKitSecCtl secctl;
TZPPC apb_ppc0;
TZPPC apb_ppc1;
TZMPC mpc;
CMSDKAPBTIMER timer0;
CMSDKAPBTIMER timer1;
CMSDKAPBTIMER s32ktimer;
qemu_or_irq ppc_irq_orgate;
SplitIRQ sec_resp_splitter;
SplitIRQ ppc_irq_splitter[NUM_PPCS];
SplitIRQ mpc_irq_splitter[IOTS_NUM_EXP_MPC + IOTS_NUM_MPC];
qemu_or_irq mpc_irq_orgate;
qemu_or_irq nmi_orgate;
CMSDKAPBDualTimer dualtimer;
CMSDKAPBWatchdog s32kwatchdog;
CMSDKAPBWatchdog nswatchdog;
CMSDKAPBWatchdog swatchdog;
IoTKitSysCtl sysctl;
IoTKitSysCtl sysinfo;
MemoryRegion container;
MemoryRegion alias1;
MemoryRegion alias2;
MemoryRegion alias3;
MemoryRegion sram0;
qemu_irq *exp_irqs;
qemu_irq ppc0_irq;
qemu_irq ppc1_irq;
qemu_irq sec_resp_cfg;
qemu_irq sec_resp_cfg_in;
qemu_irq nsc_cfg_in;
qemu_irq irq_status_in[NUM_EXTERNAL_PPCS];
qemu_irq mpcexp_status_in[IOTS_NUM_EXP_MPC];
uint32_t nsccfg;
/* Properties */
MemoryRegion *board_memory;
uint32_t exp_numirq;
uint32_t mainclk_frq;
} ARMSSE;
typedef struct ARMSSEInfo ARMSSEInfo;
typedef struct ARMSSEClass {
DeviceClass parent_class;
const ARMSSEInfo *info;
} ARMSSEClass;
#define ARMSSE_CLASS(klass) \
OBJECT_CLASS_CHECK(ARMSSEClass, (klass), TYPE_ARMSSE)
#define ARMSSE_GET_CLASS(obj) \
OBJECT_GET_CLASS(ARMSSEClass, (obj), TYPE_ARMSSE)
#endif
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