return 0;
}
+static void pic_irq_request(void *opaque, int level)
+{
+ if (level)
+ cpu_interrupt(first_cpu, CPU_INTERRUPT_HARD);
+ else
+ cpu_reset_interrupt(first_cpu, CPU_INTERRUPT_HARD);
+}
+
/* PCI intack register */
/* Read-only register (?) */
static void _PPC_intack_write (void *opaque, target_phys_addr_t addr, uint32_t value)
uint32_t retval = 0;
if (addr == 0xBFFFFFF0)
- retval = pic_intack_read(NULL);
+ retval = pic_intack_read(isa_pic);
// printf("%s: 0x%08x <= %d\n", __func__, addr, retval);
return retval;
uint8_t state;
uint8_t syscontrol;
uint8_t fake_io[2];
+ int contiguous_map;
+ int endian;
} sysctrl_t;
enum {
/* Special port 92 */
/* Check soft reset asked */
if (val & 0x01) {
- // cpu_interrupt(cpu_single_env, CPU_INTERRUPT_RESET);
+ // cpu_interrupt(first_cpu, CPU_INTERRUPT_RESET);
}
/* Check LE mode */
if (val & 0x02) {
- printf("Little Endian mode isn't supported (yet ?)\n");
- abort();
+ sysctrl->endian = 1;
+ } else {
+ sysctrl->endian = 0;
}
break;
case 0x0800:
break;
case 0x0814:
/* L2 invalidate register */
- // tlb_flush(cpu_single_env, 1);
+ // tlb_flush(first_cpu, 1);
break;
case 0x081C:
/* system control register */
break;
case 0x0850:
/* I/O map type register */
- if (!(val & 0x01)) {
- printf("No support for non-continuous I/O map mode\n");
- abort();
- }
+ sysctrl->contiguous_map = val & 0x01;
break;
default:
printf("ERROR: unaffected IO port write: %04lx => %02x\n",
/* Motorola base module extended feature register */
retval = 0x39; /* No USB, CF and PCI bridge. NVRAM present */
break;
+ case 0x0814:
+ /* L2 invalidate: don't care */
+ break;
case 0x0818:
/* Keylock */
retval = 0x00;
break;
case 0x0850:
/* I/O map type register */
- retval = 0x01;
+ retval = sysctrl->contiguous_map;
break;
default:
printf("ERROR: unaffected IO port: %04lx read\n", (long)addr);
return retval;
}
-extern CPUPPCState *global_env;
+static inline target_phys_addr_t prep_IO_address (sysctrl_t *sysctrl,
+ target_phys_addr_t addr)
+{
+ if (sysctrl->contiguous_map == 0) {
+ /* 64 KB contiguous space for IOs */
+ addr &= 0xFFFF;
+ } else {
+ /* 8 MB non-contiguous space for IOs */
+ addr = (addr & 0x1F) | ((addr & 0x007FFF000) >> 7);
+ }
+
+ return addr;
+}
+
+static void PPC_prep_io_writeb (void *opaque, target_phys_addr_t addr,
+ uint32_t value)
+{
+ sysctrl_t *sysctrl = opaque;
+
+ addr = prep_IO_address(sysctrl, addr);
+ cpu_outb(NULL, addr, value);
+}
+
+static uint32_t PPC_prep_io_readb (void *opaque, target_phys_addr_t addr)
+{
+ sysctrl_t *sysctrl = opaque;
+ uint32_t ret;
+
+ addr = prep_IO_address(sysctrl, addr);
+ ret = cpu_inb(NULL, addr);
+
+ return ret;
+}
+
+static void PPC_prep_io_writew (void *opaque, target_phys_addr_t addr,
+ uint32_t value)
+{
+ sysctrl_t *sysctrl = opaque;
+
+ addr = prep_IO_address(sysctrl, addr);
+#ifdef TARGET_WORDS_BIGENDIAN
+ value = bswap16(value);
+#endif
+ PPC_IO_DPRINTF("0x%08lx => 0x%08x\n", (long)addr, value);
+ cpu_outw(NULL, addr, value);
+}
+
+static uint32_t PPC_prep_io_readw (void *opaque, target_phys_addr_t addr)
+{
+ sysctrl_t *sysctrl = opaque;
+ uint32_t ret;
+
+ addr = prep_IO_address(sysctrl, addr);
+ ret = cpu_inw(NULL, addr);
+#ifdef TARGET_WORDS_BIGENDIAN
+ ret = bswap16(ret);
+#endif
+ PPC_IO_DPRINTF("0x%08lx <= 0x%08x\n", (long)addr, ret);
+
+ return ret;
+}
+
+static void PPC_prep_io_writel (void *opaque, target_phys_addr_t addr,
+ uint32_t value)
+{
+ sysctrl_t *sysctrl = opaque;
+
+ addr = prep_IO_address(sysctrl, addr);
+#ifdef TARGET_WORDS_BIGENDIAN
+ value = bswap32(value);
+#endif
+ PPC_IO_DPRINTF("0x%08lx => 0x%08x\n", (long)addr, value);
+ cpu_outl(NULL, addr, value);
+}
+
+static uint32_t PPC_prep_io_readl (void *opaque, target_phys_addr_t addr)
+{
+ sysctrl_t *sysctrl = opaque;
+ uint32_t ret;
+
+ addr = prep_IO_address(sysctrl, addr);
+ ret = cpu_inl(NULL, addr);
+#ifdef TARGET_WORDS_BIGENDIAN
+ ret = bswap32(ret);
+#endif
+ PPC_IO_DPRINTF("0x%08lx <= 0x%08x\n", (long)addr, ret);
+
+ return ret;
+}
+
+CPUWriteMemoryFunc *PPC_prep_io_write[] = {
+ &PPC_prep_io_writeb,
+ &PPC_prep_io_writew,
+ &PPC_prep_io_writel,
+};
+
+CPUReadMemoryFunc *PPC_prep_io_read[] = {
+ &PPC_prep_io_readb,
+ &PPC_prep_io_readw,
+ &PPC_prep_io_readl,
+};
#define NVRAM_SIZE 0x2000
/* PowerPC PREP hardware initialisation */
-void ppc_prep_init(int ram_size, int vga_ram_size, int boot_device,
- DisplayState *ds, const char **fd_filename, int snapshot,
- const char *kernel_filename, const char *kernel_cmdline,
- const char *initrd_filename)
+static void ppc_prep_init(int ram_size, int vga_ram_size, int boot_device,
+ DisplayState *ds, const char **fd_filename, int snapshot,
+ const char *kernel_filename, const char *kernel_cmdline,
+ const char *initrd_filename)
{
+ CPUState *env;
char buf[1024];
+ SetIRQFunc *set_irq;
m48t59_t *nvram;
int PPC_io_memory;
- int ret, linux_boot, i, nb_nics1, fd;
+ int linux_boot, i, nb_nics1, bios_size;
unsigned long bios_offset;
uint32_t kernel_base, kernel_size, initrd_base, initrd_size;
+ ppc_def_t *def;
PCIBus *pci_bus;
sysctrl = qemu_mallocz(sizeof(sysctrl_t));
return;
linux_boot = (kernel_filename != NULL);
+
+ /* init CPUs */
+
+ env = cpu_init();
+ register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
+
+ /* Register CPU as a 604 */
+ /* XXX: CPU model (or PVR) should be provided on command line */
+ // ppc_find_by_name("604r", &def);
+ // ppc_find_by_name("604e", &def);
+ ppc_find_by_name("604", &def);
+ if (def == NULL) {
+ cpu_abort(env, "Unable to find PowerPC CPU definition\n");
+ }
+ cpu_ppc_register(env, def);
+ /* Set time-base frequency to 100 Mhz */
+ cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
/* allocate RAM */
cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
/* allocate and load BIOS */
bios_offset = ram_size + vga_ram_size;
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
- ret = load_image(buf, phys_ram_base + bios_offset);
- if (ret != BIOS_SIZE) {
+ bios_size = load_image(buf, phys_ram_base + bios_offset);
+ if (bios_size < 0 || bios_size > BIOS_SIZE) {
fprintf(stderr, "qemu: could not load PPC PREP bios '%s'\n", buf);
exit(1);
}
- cpu_register_physical_memory((uint32_t)(-BIOS_SIZE),
- BIOS_SIZE, bios_offset | IO_MEM_ROM);
- cpu_single_env->nip = 0xfffffffc;
+ bios_size = (bios_size + 0xfff) & ~0xfff;
+ cpu_register_physical_memory((uint32_t)(-bios_size),
+ bios_size, bios_offset | IO_MEM_ROM);
if (linux_boot) {
kernel_base = KERNEL_LOAD_ADDR;
initrd_size = 0;
}
- /* Register CPU as a 74x/75x */
- cpu_ppc_register(cpu_single_env, 0x00080000);
- /* Set time-base frequency to 100 Mhz */
- cpu_ppc_tb_init(cpu_single_env, 100UL * 1000UL * 1000UL);
-
isa_mem_base = 0xc0000000;
pci_bus = pci_prep_init();
- /* Register 64 KB of ISA IO space */
- PPC_io_memory = cpu_register_io_memory(0, PPC_io_read, PPC_io_write, NULL);
- cpu_register_physical_memory(0x80000000, 0x00010000, PPC_io_memory);
+ // pci_bus = i440fx_init();
+ /* Register 8 MB of ISA IO space (needed for non-contiguous map) */
+ PPC_io_memory = cpu_register_io_memory(0, PPC_prep_io_read,
+ PPC_prep_io_write, sysctrl);
+ cpu_register_physical_memory(0x80000000, 0x00800000, PPC_io_memory);
/* init basic PC hardware */
vga_initialize(pci_bus, ds, phys_ram_base + ram_size, ram_size,
- vga_ram_size);
+ vga_ram_size, 0, 0);
rtc_init(0x70, 8);
// openpic = openpic_init(0x00000000, 0xF0000000, 1);
- // pic_init(openpic);
- pic_init();
+ isa_pic = pic_init(pic_irq_request, first_cpu);
// pit = pit_init(0x40, 0);
- fd = serial_open_device();
- serial_init(0x3f8, 4, fd);
+ serial_init(&pic_set_irq_new, isa_pic, 0x3f8, 4, serial_hds[0]);
nb_nics1 = nb_nics;
if (nb_nics1 > NE2000_NB_MAX)
nb_nics1 = NE2000_NB_MAX;
for(i = 0; i < nb_nics1; i++) {
- isa_ne2000_init(ne2000_io[i], ne2000_irq[i], &nd_table[i]);
+ if (nd_table[0].model == NULL
+ || strcmp(nd_table[0].model, "ne2k_isa") == 0) {
+ isa_ne2000_init(ne2000_io[i], ne2000_irq[i], &nd_table[i]);
+ } else {
+ fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model);
+ exit (1);
+ }
}
for(i = 0; i < 2; i++) {
cpu_register_physical_memory(0xFEFF0000, 0x1000, PPC_io_memory);
#endif
- nvram = m48t59_init(8, 0, 0x0074, NVRAM_SIZE);
+ nvram = m48t59_init(8, 0, 0x0074, NVRAM_SIZE, 59);
if (nvram == NULL)
return;
sysctrl->nvram = nvram;
/* XXX: need an option to load a NVRAM image */
0,
graphic_width, graphic_height, graphic_depth);
+
+ /* Special port to get debug messages from Open-Firmware */
+ register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL);
}
+
+QEMUMachine prep_machine = {
+ "prep",
+ "PowerPC PREP platform",
+ ppc_prep_init,
+};
projects / qemu / blobdiff