diff options
Diffstat (limited to 'hw/m68k/q800.c')
| -rw-r--r-- | hw/m68k/q800.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/hw/m68k/q800.c b/hw/m68k/q800.c index 2b4842f..4ca8678 100644 --- a/hw/m68k/q800.c +++ b/hw/m68k/q800.c @@ -60,14 +60,19 @@ #define MACH_MAC 3 #define Q800_MAC_CPU_ID 2 -#define VIA_BASE 0x50f00000 -#define SONIC_PROM_BASE 0x50f08000 -#define SONIC_BASE 0x50f0a000 -#define SCC_BASE 0x50f0c020 -#define ESP_BASE 0x50f10000 -#define ESP_PDMA 0x50f10100 -#define ASC_BASE 0x50F14000 -#define SWIM_BASE 0x50F1E000 +#define IO_BASE 0x50000000 +#define IO_SLICE 0x00040000 +#define IO_SIZE 0x04000000 + +#define VIA_BASE (IO_BASE + 0x00000) +#define SONIC_PROM_BASE (IO_BASE + 0x08000) +#define SONIC_BASE (IO_BASE + 0x0a000) +#define SCC_BASE (IO_BASE + 0x0c020) +#define ESP_BASE (IO_BASE + 0x10000) +#define ESP_PDMA (IO_BASE + 0x10100) +#define ASC_BASE (IO_BASE + 0x14000) +#define SWIM_BASE (IO_BASE + 0x1E000) + #define NUBUS_SUPER_SLOT_BASE 0x60000000 #define NUBUS_SLOT_BASE 0xf0000000 @@ -135,6 +140,9 @@ static void q800_init(MachineState *machine) int32_t initrd_size; MemoryRegion *rom; MemoryRegion *ram; + MemoryRegion *io; + const int io_slice_nb = (IO_SIZE / IO_SLICE) - 1; + int i; ram_addr_t ram_size = machine->ram_size; const char *kernel_filename = machine->kernel_filename; const char *initrd_filename = machine->initrd_filename; @@ -163,10 +171,26 @@ static void q800_init(MachineState *machine) cpu = M68K_CPU(cpu_create(machine->cpu_type)); qemu_register_reset(main_cpu_reset, cpu); + /* RAM */ ram = g_malloc(sizeof(*ram)); memory_region_init_ram(ram, NULL, "m68k_mac.ram", ram_size, &error_abort); memory_region_add_subregion(get_system_memory(), 0, ram); + /* + * Memory from IO_BASE to IO_BASE + IO_SLICE is repeated + * from IO_BASE + IO_SLICE to IO_BASE + IO_SIZE + */ + io = g_new(MemoryRegion, io_slice_nb); + for (i = 0; i < io_slice_nb; i++) { + char *name = g_strdup_printf("mac_m68k.io[%d]", i + 1); + + memory_region_init_alias(&io[i], NULL, name, get_system_memory(), + IO_BASE, IO_SLICE); + memory_region_add_subregion(get_system_memory(), + IO_BASE + (i + 1) * IO_SLICE, &io[i]); + g_free(name); + } + /* IRQ Glue */ irq = g_new0(GLUEState, 1); |