| /* |
| * 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/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, hwaddr addr, |
| unsigned size) |
| { |
| uint32_t value = 0; |
| CPUPPCState *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, hwaddr 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) |