mirror of https://gitee.com/openkylin/qemu.git
144 lines
4.0 KiB
C
144 lines
4.0 KiB
C
/*
|
|
* QEMU PowerPC MPC8544 global util pseudo-device
|
|
*
|
|
* Copyright (C) 2011 Freescale Semiconductor, Inc. All rights reserved.
|
|
*
|
|
* Author: Alexander Graf, <alex@csgraf.de>
|
|
*
|
|
* This is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* *****************************************************************
|
|
*
|
|
* The documentation for this device is noted in the MPC8544 documentation,
|
|
* file name "MPC8544ERM.pdf". You can easily find it on the web.
|
|
*
|
|
*/
|
|
|
|
#include "hw.h"
|
|
#include "sysemu.h"
|
|
#include "sysbus.h"
|
|
|
|
#define MPC8544_GUTS_MMIO_SIZE 0x1000
|
|
#define MPC8544_GUTS_RSTCR_RESET 0x02
|
|
|
|
#define MPC8544_GUTS_ADDR_PORPLLSR 0x00
|
|
#define MPC8544_GUTS_ADDR_PORBMSR 0x04
|
|
#define MPC8544_GUTS_ADDR_PORIMPSCR 0x08
|
|
#define MPC8544_GUTS_ADDR_PORDEVSR 0x0C
|
|
#define MPC8544_GUTS_ADDR_PORDBGMSR 0x10
|
|
#define MPC8544_GUTS_ADDR_PORDEVSR2 0x14
|
|
#define MPC8544_GUTS_ADDR_GPPORCR 0x20
|
|
#define MPC8544_GUTS_ADDR_GPIOCR 0x30
|
|
#define MPC8544_GUTS_ADDR_GPOUTDR 0x40
|
|
#define MPC8544_GUTS_ADDR_GPINDR 0x50
|
|
#define MPC8544_GUTS_ADDR_PMUXCR 0x60
|
|
#define MPC8544_GUTS_ADDR_DEVDISR 0x70
|
|
#define MPC8544_GUTS_ADDR_POWMGTCSR 0x80
|
|
#define MPC8544_GUTS_ADDR_MCPSUMR 0x90
|
|
#define MPC8544_GUTS_ADDR_RSTRSCR 0x94
|
|
#define MPC8544_GUTS_ADDR_PVR 0xA0
|
|
#define MPC8544_GUTS_ADDR_SVR 0xA4
|
|
#define MPC8544_GUTS_ADDR_RSTCR 0xB0
|
|
#define MPC8544_GUTS_ADDR_IOVSELSR 0xC0
|
|
#define MPC8544_GUTS_ADDR_DDRCSR 0xB20
|
|
#define MPC8544_GUTS_ADDR_DDRCDR 0xB24
|
|
#define MPC8544_GUTS_ADDR_DDRCLKDR 0xB28
|
|
#define MPC8544_GUTS_ADDR_CLKOCR 0xE00
|
|
#define MPC8544_GUTS_ADDR_SRDS1CR1 0xF04
|
|
#define MPC8544_GUTS_ADDR_SRDS2CR1 0xF10
|
|
#define MPC8544_GUTS_ADDR_SRDS2CR3 0xF18
|
|
|
|
struct GutsState {
|
|
SysBusDevice busdev;
|
|
MemoryRegion iomem;
|
|
};
|
|
|
|
typedef struct GutsState GutsState;
|
|
|
|
static uint64_t mpc8544_guts_read(void *opaque, target_phys_addr_t addr,
|
|
unsigned size)
|
|
{
|
|
uint32_t value = 0;
|
|
CPUState *env = cpu_single_env;
|
|
|
|
addr &= MPC8544_GUTS_MMIO_SIZE - 1;
|
|
switch (addr) {
|
|
case MPC8544_GUTS_ADDR_PVR:
|
|
value = env->spr[SPR_PVR];
|
|
break;
|
|
case MPC8544_GUTS_ADDR_SVR:
|
|
value = env->spr[SPR_E500_SVR];
|
|
break;
|
|
default:
|
|
fprintf(stderr, "guts: Unknown register read: %x\n", (int)addr);
|
|
break;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
static void mpc8544_guts_write(void *opaque, target_phys_addr_t addr,
|
|
uint64_t value, unsigned size)
|
|
{
|
|
addr &= MPC8544_GUTS_MMIO_SIZE - 1;
|
|
|
|
switch (addr) {
|
|
case MPC8544_GUTS_ADDR_RSTCR:
|
|
if (value & MPC8544_GUTS_RSTCR_RESET) {
|
|
qemu_system_reset_request();
|
|
}
|
|
break;
|
|
default:
|
|
fprintf(stderr, "guts: Unknown register write: %x = %x\n",
|
|
(int)addr, (unsigned)value);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static const MemoryRegionOps mpc8544_guts_ops = {
|
|
.read = mpc8544_guts_read,
|
|
.write = mpc8544_guts_write,
|
|
.endianness = DEVICE_BIG_ENDIAN,
|
|
.valid = {
|
|
.min_access_size = 4,
|
|
.max_access_size = 4,
|
|
},
|
|
};
|
|
|
|
static int mpc8544_guts_initfn(SysBusDevice *dev)
|
|
{
|
|
GutsState *s;
|
|
|
|
s = FROM_SYSBUS(GutsState, sysbus_from_qdev(dev));
|
|
|
|
memory_region_init_io(&s->iomem, &mpc8544_guts_ops, s,
|
|
"mpc6544.guts", MPC8544_GUTS_MMIO_SIZE);
|
|
sysbus_init_mmio(dev, &s->iomem);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mpc8544_guts_class_init(ObjectClass *klass, void *data)
|
|
{
|
|
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
|
|
|
|
k->init = mpc8544_guts_initfn;
|
|
}
|
|
|
|
static TypeInfo mpc8544_guts_info = {
|
|
.name = "mpc8544-guts",
|
|
.parent = TYPE_SYS_BUS_DEVICE,
|
|
.instance_size = sizeof(GutsState),
|
|
.class_init = mpc8544_guts_class_init,
|
|
};
|
|
|
|
static void mpc8544_guts_register_types(void)
|
|
{
|
|
type_register_static(&mpc8544_guts_info);
|
|
}
|
|
|
|
type_init(mpc8544_guts_register_types)
|