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broadway.c
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#include "qemu/osdep.h"
#include "cpu.h"
#include "qapi/error.h"
#include "qemu-common.h"
#include "hw/hw.h"
#include "hw/loader.h"
#include "hw/boards.h"
#include "exec/address-spaces.h"
#include "hw/ppc/ppc.h"
#define MAX_CPUS 1
#define MEM1PH_ADDR 0 // Physical
#define MEM1PH_SIZE 0x017FFFFF
#define MEM2PH_ADDR 0x10000000 // Physical
#define MEM2PH_SIZE 0x03FFFFFF
#define MEM1C_ADDR 0x80000000 // Physical Address = 0x00000000
#define MEM1C_SIZE 0x017FFFFF // (Cached)
#define MEM1U_ADDR 0xC0000000 // Physical Address = 0x00000000
#define MEM1U_SIZE 0x017FFFFF // (Uncached)
#define MEM2C_ADDR 0x90000000 // Physical Address = 0x10000000
#define MEM2C_SIZE 0x03FFFFFF // (Cached)
#define MEM2U_ADDR 0xD0000000 // Physical Address = 0x10000000
#define MEM2U_SIZE 0x03FFFFFF // (Uncached)
#define REGS_ADDR 0xCD000000 // Physical Address = 0x0D000000
#define REGS_SIZE 0x00008000 // Hollywood Registers
#define LOCKED_CACHE_ADDR 0xF0000000
#define LOCKED_CACHE_SIZE 0x8000
typedef struct
{
PowerPCCPU *cpu;
MemoryRegion *system_mem;
MemoryRegion *mem1ph;
MemoryRegion *mem1c;
MemoryRegion *mem1u;
MemoryRegion *mem2ph;
MemoryRegion *mem2c;
MemoryRegion *mem2u;
MemoryRegion *regs;
MemoryRegion *locked_cache;
} BroadwayState;
static void broadway_load_image(BroadwayState *s, const char* file, uint32_t addr)
{
unsigned int size = get_image_size(file);
if (load_image_targphys(file, addr, size) != size)
{
fprintf(stderr, "%s: error loading '%s'\n", __FUNCTION__, file);
abort();
}
}
static void main_cpu_reset(void *opaque)
{
PowerPCCPU *cpu = opaque;
cpu_reset(CPU(cpu));
cpu->env.nip = 0x80004000;
}
static void broadway_init_cpu(MachineState *machine)
{
Error *err = NULL;
BroadwayState *s = g_new(BroadwayState, 1);
fprintf(stdout, "Get Memory\n");
s->system_mem = get_system_memory();
s->mem1ph = g_new(MemoryRegion, 1);
s->mem1c = g_new(MemoryRegion, 1);
s->mem1u = g_new(MemoryRegion, 1);
s->mem2ph = g_new(MemoryRegion, 1);
s->mem2c = g_new(MemoryRegion, 1);
s->mem2u = g_new(MemoryRegion, 1);
s->regs = g_new(MemoryRegion, 1);
s->locked_cache = g_new(MemoryRegion, 1);
memory_region_init_ram(s->mem1c, NULL, "broadway.mem1c", MEM1C_SIZE, &err);
memory_region_init_alias(s->mem1u, NULL, "broadway.mem1u", s->mem1c, 0, MEM1U_SIZE);
memory_region_init_alias(s->mem1ph, NULL, "broadway.mem1ph", s->mem1c, 0, MEM1PH_SIZE);
memory_region_add_subregion(s->system_mem, MEM1C_ADDR, s->mem1c);
memory_region_add_subregion(s->system_mem, MEM1U_ADDR, s->mem1u);
memory_region_add_subregion(s->system_mem, MEM1PH_ADDR, s->mem1ph);
memory_region_init_ram(s->mem2c, NULL, "broadway.mem2c", MEM2C_SIZE, &err);
memory_region_init_alias(s->mem2u, NULL, "broadway.mem2u", s->mem2c, 0, MEM2U_SIZE);
memory_region_init_alias(s->mem2ph, NULL, "broadway.mem2ph", s->mem2c, 0, MEM2PH_SIZE);
memory_region_add_subregion(s->system_mem, MEM2C_ADDR, s->mem2c);
memory_region_add_subregion(s->system_mem, MEM2U_ADDR, s->mem2u);
memory_region_add_subregion(s->system_mem, MEM2PH_ADDR, s->mem2ph);
memory_region_init_ram(s->locked_cache, NULL, "broadway.locked_cache", LOCKED_CACHE_SIZE, &err);
memory_region_add_subregion(s->system_mem, LOCKED_CACHE_ADDR, s->locked_cache);
fprintf(stdout, "Load Image\n");
broadway_load_image(s, "payload.bin", 0x80004000);
fprintf(stdout, "Create CPU\n");
s->cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
cpu_ppc_tb_init(&s->cpu->env, 100UL * 1000UL * 1000UL);
qemu_register_reset(main_cpu_reset, s->cpu);
fprintf(stdout, "Done\n");
}
static void broadway_init(MachineClass *mc)
{
mc->desc = "broadway";
mc->init = broadway_init_cpu;
mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("750cl_v2.0");
}
DEFINE_MACHINE("broadway", broadway_init)