2 * QEMU MIPS Jazz support
4 * Copyright (c) 2007-2008 Hervé Poussineau
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 #include "hw/mips/mips.h"
27 #include "hw/mips/cpudevs.h"
28 #include "hw/i386/pc.h"
29 #include "hw/char/serial.h"
30 #include "hw/isa/isa.h"
31 #include "hw/block/fdc.h"
32 #include "sysemu/sysemu.h"
33 #include "sysemu/arch_init.h"
34 #include "hw/boards.h"
36 #include "hw/scsi/esp.h"
37 #include "hw/mips/bios.h"
38 #include "hw/loader.h"
39 #include "hw/timer/mc146818rtc.h"
40 #include "hw/timer/i8254.h"
41 #include "hw/audio/pcspk.h"
42 #include "sysemu/block-backend.h"
43 #include "hw/sysbus.h"
44 #include "exec/address-spaces.h"
45 #include "sysemu/qtest.h"
46 #include "qemu/error-report.h"
54 static void main_cpu_reset(void *opaque
)
56 MIPSCPU
*cpu
= opaque
;
61 static uint64_t rtc_read(void *opaque
, hwaddr addr
, unsigned size
)
64 address_space_read(&address_space_memory
, 0x90000071,
65 MEMTXATTRS_UNSPECIFIED
, &val
, 1);
69 static void rtc_write(void *opaque
, hwaddr addr
,
70 uint64_t val
, unsigned size
)
72 uint8_t buf
= val
& 0xff;
73 address_space_write(&address_space_memory
, 0x90000071,
74 MEMTXATTRS_UNSPECIFIED
, &buf
, 1);
77 static const MemoryRegionOps rtc_ops
= {
80 .endianness
= DEVICE_NATIVE_ENDIAN
,
83 static uint64_t dma_dummy_read(void *opaque
, hwaddr addr
,
86 /* Nothing to do. That is only to ensure that
87 * the current DMA acknowledge cycle is completed. */
91 static void dma_dummy_write(void *opaque
, hwaddr addr
,
92 uint64_t val
, unsigned size
)
94 /* Nothing to do. That is only to ensure that
95 * the current DMA acknowledge cycle is completed. */
98 static const MemoryRegionOps dma_dummy_ops
= {
99 .read
= dma_dummy_read
,
100 .write
= dma_dummy_write
,
101 .endianness
= DEVICE_NATIVE_ENDIAN
,
104 #define MAGNUM_BIOS_SIZE_MAX 0x7e000
105 #define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)
107 static void cpu_request_exit(void *opaque
, int irq
, int level
)
109 CPUState
*cpu
= current_cpu
;
116 static CPUUnassignedAccess real_do_unassigned_access
;
117 static void mips_jazz_do_unassigned_access(CPUState
*cpu
, hwaddr addr
,
118 bool is_write
, bool is_exec
,
119 int opaque
, unsigned size
)
122 /* ignore invalid access (ie do not raise exception) */
125 (*real_do_unassigned_access
)(cpu
, addr
, is_write
, is_exec
, opaque
, size
);
128 static void mips_jazz_init(MachineState
*machine
,
129 enum jazz_model_e jazz_model
)
131 MemoryRegion
*address_space
= get_system_memory();
132 const char *cpu_model
= machine
->cpu_model
;
138 qemu_irq
*rc4030
, *i8259
;
141 MemoryRegion
*isa_mem
= g_new(MemoryRegion
, 1);
142 MemoryRegion
*isa_io
= g_new(MemoryRegion
, 1);
143 MemoryRegion
*rtc
= g_new(MemoryRegion
, 1);
144 MemoryRegion
*i8042
= g_new(MemoryRegion
, 1);
145 MemoryRegion
*dma_dummy
= g_new(MemoryRegion
, 1);
148 SysBusDevice
*sysbus
;
151 DriveInfo
*fds
[MAX_FD
];
152 qemu_irq esp_reset
, dma_enable
;
153 qemu_irq
*cpu_exit_irq
;
154 MemoryRegion
*ram
= g_new(MemoryRegion
, 1);
155 MemoryRegion
*bios
= g_new(MemoryRegion
, 1);
156 MemoryRegion
*bios2
= g_new(MemoryRegion
, 1);
159 if (cpu_model
== NULL
) {
163 /* FIXME: All wrong, this maybe should be R3000 for the older JAZZs. */
167 cpu
= cpu_mips_init(cpu_model
);
169 fprintf(stderr
, "Unable to find CPU definition\n");
173 qemu_register_reset(main_cpu_reset
, cpu
);
175 /* Chipset returns 0 in invalid reads and do not raise data exceptions.
176 * However, we can't simply add a global memory region to catch
177 * everything, as memory core directly call unassigned_mem_read/write
178 * on some invalid accesses, which call do_unassigned_access on the
179 * CPU, which raise an exception.
180 * Handle that case by hijacking the do_unassigned_access method on
181 * the CPU, and do not raise exceptions for data access. */
182 cc
= CPU_GET_CLASS(cpu
);
183 real_do_unassigned_access
= cc
->do_unassigned_access
;
184 cc
->do_unassigned_access
= mips_jazz_do_unassigned_access
;
187 memory_region_allocate_system_memory(ram
, NULL
, "mips_jazz.ram",
189 memory_region_add_subregion(address_space
, 0, ram
);
191 memory_region_init_ram(bios
, NULL
, "mips_jazz.bios", MAGNUM_BIOS_SIZE
,
193 vmstate_register_ram_global(bios
);
194 memory_region_set_readonly(bios
, true);
195 memory_region_init_alias(bios2
, NULL
, "mips_jazz.bios", bios
,
196 0, MAGNUM_BIOS_SIZE
);
197 memory_region_add_subregion(address_space
, 0x1fc00000LL
, bios
);
198 memory_region_add_subregion(address_space
, 0xfff00000LL
, bios2
);
200 /* load the BIOS image. */
201 if (bios_name
== NULL
)
202 bios_name
= BIOS_FILENAME
;
203 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
205 bios_size
= load_image_targphys(filename
, 0xfff00000LL
,
211 if ((bios_size
< 0 || bios_size
> MAGNUM_BIOS_SIZE
) && !qtest_enabled()) {
212 error_report("Could not load MIPS bios '%s'", bios_name
);
216 /* Init CPU internal devices */
217 cpu_mips_irq_init_cpu(env
);
218 cpu_mips_clock_init(env
);
221 rc4030_opaque
= rc4030_init(env
->irq
[6], env
->irq
[3], &rc4030
, &dmas
,
223 memory_region_init_io(dma_dummy
, NULL
, &dma_dummy_ops
, NULL
, "dummy_dma", 0x1000);
224 memory_region_add_subregion(address_space
, 0x8000d000, dma_dummy
);
226 /* ISA bus: IO space at 0x90000000, mem space at 0x91000000 */
227 memory_region_init(isa_io
, NULL
, "isa-io", 0x00010000);
228 memory_region_init(isa_mem
, NULL
, "isa-mem", 0x01000000);
229 memory_region_add_subregion(address_space
, 0x90000000, isa_io
);
230 memory_region_add_subregion(address_space
, 0x91000000, isa_mem
);
231 isa_bus
= isa_bus_new(NULL
, isa_mem
, isa_io
);
234 i8259
= i8259_init(isa_bus
, env
->irq
[4]);
235 isa_bus_irqs(isa_bus
, i8259
);
236 cpu_exit_irq
= qemu_allocate_irqs(cpu_request_exit
, NULL
, 1);
237 DMA_init(0, cpu_exit_irq
);
238 pit
= pit_init(isa_bus
, 0x40, 0, NULL
);
239 pcspk_init(isa_bus
, pit
);
242 switch (jazz_model
) {
244 dev
= qdev_create(NULL
, "sysbus-g364");
245 qdev_init_nofail(dev
);
246 sysbus
= SYS_BUS_DEVICE(dev
);
247 sysbus_mmio_map(sysbus
, 0, 0x60080000);
248 sysbus_mmio_map(sysbus
, 1, 0x40000000);
249 sysbus_connect_irq(sysbus
, 0, rc4030
[3]);
251 /* Simple ROM, so user doesn't have to provide one */
252 MemoryRegion
*rom_mr
= g_new(MemoryRegion
, 1);
253 memory_region_init_ram(rom_mr
, NULL
, "g364fb.rom", 0x80000,
255 vmstate_register_ram_global(rom_mr
);
256 memory_region_set_readonly(rom_mr
, true);
257 uint8_t *rom
= memory_region_get_ram_ptr(rom_mr
);
258 memory_region_add_subregion(address_space
, 0x60000000, rom_mr
);
259 rom
[0] = 0x10; /* Mips G364 */
263 isa_vga_mm_init(0x40000000, 0x60000000, 0, get_system_memory());
269 /* Network controller */
270 for (n
= 0; n
< nb_nics
; n
++) {
273 nd
->model
= g_strdup("dp83932");
274 if (strcmp(nd
->model
, "dp83932") == 0) {
275 dp83932_init(nd
, 0x80001000, 2, get_system_memory(), rc4030
[4],
276 rc4030_opaque
, rc4030_dma_memory_rw
);
278 } else if (is_help_option(nd
->model
)) {
279 fprintf(stderr
, "qemu: Supported NICs: dp83932\n");
282 fprintf(stderr
, "qemu: Unsupported NIC: %s\n", nd
->model
);
288 esp_init(0x80002000, 0,
289 rc4030_dma_read
, rc4030_dma_write
, dmas
[0],
290 rc4030
[5], &esp_reset
, &dma_enable
);
293 if (drive_get_max_bus(IF_FLOPPY
) >= MAX_FD
) {
294 fprintf(stderr
, "qemu: too many floppy drives\n");
297 for (n
= 0; n
< MAX_FD
; n
++) {
298 fds
[n
] = drive_get(IF_FLOPPY
, 0, n
);
300 fdctrl_init_sysbus(rc4030
[1], 0, 0x80003000, fds
);
302 /* Real time clock */
303 rtc_init(isa_bus
, 1980, NULL
);
304 memory_region_init_io(rtc
, NULL
, &rtc_ops
, NULL
, "rtc", 0x1000);
305 memory_region_add_subregion(address_space
, 0x80004000, rtc
);
307 /* Keyboard (i8042) */
308 i8042_mm_init(rc4030
[6], rc4030
[7], i8042
, 0x1000, 0x1);
309 memory_region_add_subregion(address_space
, 0x80005000, i8042
);
313 serial_mm_init(address_space
, 0x80006000, 0, rc4030
[8], 8000000/16,
314 serial_hds
[0], DEVICE_NATIVE_ENDIAN
);
317 serial_mm_init(address_space
, 0x80007000, 0, rc4030
[9], 8000000/16,
318 serial_hds
[1], DEVICE_NATIVE_ENDIAN
);
323 parallel_mm_init(address_space
, 0x80008000, 0, rc4030
[0],
326 /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */
329 dev
= qdev_create(NULL
, "ds1225y");
330 qdev_init_nofail(dev
);
331 sysbus
= SYS_BUS_DEVICE(dev
);
332 sysbus_mmio_map(sysbus
, 0, 0x80009000);
335 sysbus_create_simple("jazz-led", 0x8000f000, NULL
);
339 void mips_magnum_init(MachineState
*machine
)
341 mips_jazz_init(machine
, JAZZ_MAGNUM
);
345 void mips_pica61_init(MachineState
*machine
)
347 mips_jazz_init(machine
, JAZZ_PICA61
);
350 static QEMUMachine mips_magnum_machine
= {
352 .desc
= "MIPS Magnum",
353 .init
= mips_magnum_init
,
354 .block_default_type
= IF_SCSI
,
357 static QEMUMachine mips_pica61_machine
= {
359 .desc
= "Acer Pica 61",
360 .init
= mips_pica61_init
,
361 .block_default_type
= IF_SCSI
,
364 static void mips_jazz_machine_init(void)
366 qemu_register_machine(&mips_magnum_machine
);
367 qemu_register_machine(&mips_pica61_machine
);
370 machine_init(mips_jazz_machine_init
);