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
27 #include "mips_cpudevs.h"
32 #include "arch_init.h"
36 #include "mips-bios.h"
38 #include "mc146818rtc.h"
47 static void main_cpu_reset(void *opaque)
49 CPUState *env = opaque;
53 static uint32_t rtc_readb(void *opaque, target_phys_addr_t addr)
58 static void rtc_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
60 cpu_outw(0x71, val & 0xff);
63 static CPUReadMemoryFunc * const rtc_read[3] = {
69 static CPUWriteMemoryFunc * const rtc_write[3] = {
75 static void dma_dummy_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
77 /* Nothing to do. That is only to ensure that
78 * the current DMA acknowledge cycle is completed. */
81 static CPUReadMemoryFunc * const dma_dummy_read[3] = {
87 static CPUWriteMemoryFunc * const dma_dummy_write[3] = {
93 #define MAGNUM_BIOS_SIZE_MAX 0x7e000
94 #define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)
96 static void cpu_request_exit(void *opaque, int irq, int level)
98 CPUState *env = cpu_single_env;
106 void mips_jazz_init (ram_addr_t ram_size,
107 const char *cpu_model,
108 enum jazz_model_e jazz_model)
113 qemu_irq *rc4030, *i8259;
116 int s_rtc, s_dma_dummy;
119 DriveInfo *fds[MAX_FD];
120 qemu_irq esp_reset, dma_enable;
121 qemu_irq *cpu_exit_irq;
122 ram_addr_t ram_offset;
123 ram_addr_t bios_offset;
126 if (cpu_model == NULL) {
130 /* FIXME: All wrong, this maybe should be R3000 for the older JAZZs. */
134 env = cpu_init(cpu_model);
136 fprintf(stderr, "Unable to find CPU definition\n");
139 qemu_register_reset(main_cpu_reset, env);
142 ram_offset = qemu_ram_alloc(NULL, "mips_jazz.ram", ram_size);
143 cpu_register_physical_memory(0, ram_size, ram_offset | IO_MEM_RAM);
145 bios_offset = qemu_ram_alloc(NULL, "mips_jazz.bios", MAGNUM_BIOS_SIZE);
146 cpu_register_physical_memory(0x1fc00000LL,
147 MAGNUM_BIOS_SIZE, bios_offset | IO_MEM_ROM);
148 cpu_register_physical_memory(0xfff00000LL,
149 MAGNUM_BIOS_SIZE, bios_offset | IO_MEM_ROM);
151 /* load the BIOS image. */
152 if (bios_name == NULL)
153 bios_name = BIOS_FILENAME;
154 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
156 bios_size = load_image_targphys(filename, 0xfff00000LL,
162 if (bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) {
163 fprintf(stderr, "qemu: Could not load MIPS bios '%s'\n",
168 /* Init CPU internal devices */
169 cpu_mips_irq_init_cpu(env);
170 cpu_mips_clock_init(env);
173 rc4030_opaque = rc4030_init(env->irq[6], env->irq[3], &rc4030, &dmas);
174 s_dma_dummy = cpu_register_io_memory(dma_dummy_read, dma_dummy_write, NULL,
175 DEVICE_NATIVE_ENDIAN);
176 cpu_register_physical_memory(0x8000d000, 0x00001000, s_dma_dummy);
179 i8259 = i8259_init(env->irq[4]);
182 cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
183 DMA_init(0, cpu_exit_irq);
184 pit = pit_init(0x40, 0);
187 /* ISA IO space at 0x90000000 */
188 isa_mmio_init(0x90000000, 0x01000000);
189 isa_mem_base = 0x11000000;
192 switch (jazz_model) {
194 g364fb_mm_init(0x40000000, 0x60000000, 0, rc4030[3]);
197 isa_vga_mm_init(0x40000000, 0x60000000, 0);
203 /* Network controller */
204 for (n = 0; n < nb_nics; n++) {
207 nd->model = qemu_strdup("dp83932");
208 if (strcmp(nd->model, "dp83932") == 0) {
209 dp83932_init(nd, 0x80001000, 2, rc4030[4],
210 rc4030_opaque, rc4030_dma_memory_rw);
212 } else if (strcmp(nd->model, "?") == 0) {
213 fprintf(stderr, "qemu: Supported NICs: dp83932\n");
216 fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model);
222 esp_init(0x80002000, 0,
223 rc4030_dma_read, rc4030_dma_write, dmas[0],
224 rc4030[5], &esp_reset, &dma_enable);
227 if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) {
228 fprintf(stderr, "qemu: too many floppy drives\n");
231 for (n = 0; n < MAX_FD; n++) {
232 fds[n] = drive_get(IF_FLOPPY, 0, n);
234 fdctrl_init_sysbus(rc4030[1], 0, 0x80003000, fds);
236 /* Real time clock */
237 rtc_init(1980, NULL);
238 s_rtc = cpu_register_io_memory(rtc_read, rtc_write, NULL,
239 DEVICE_NATIVE_ENDIAN);
240 cpu_register_physical_memory(0x80004000, 0x00001000, s_rtc);
242 /* Keyboard (i8042) */
243 i8042_mm_init(rc4030[6], rc4030[7], 0x80005000, 0x1000, 0x1);
247 #ifdef TARGET_WORDS_BIGENDIAN
248 serial_mm_init(0x80006000, 0, rc4030[8], 8000000/16, serial_hds[0], 1, 1);
250 serial_mm_init(0x80006000, 0, rc4030[8], 8000000/16, serial_hds[0], 1, 0);
254 #ifdef TARGET_WORDS_BIGENDIAN
255 serial_mm_init(0x80007000, 0, rc4030[9], 8000000/16, serial_hds[1], 1, 1);
257 serial_mm_init(0x80007000, 0, rc4030[9], 8000000/16, serial_hds[1], 1, 0);
263 parallel_mm_init(0x80008000, 0, rc4030[0], parallel_hds[0]);
266 /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */
267 audio_init(i8259, NULL);
269 /* NVRAM: Unprotected at 0x9000, Protected at 0xa000, Read only at 0xb000 */
270 ds1225y_init(0x80009000, "nvram");
273 jazz_led_init(0x8000f000);
277 void mips_magnum_init (ram_addr_t ram_size,
278 const char *boot_device,
279 const char *kernel_filename, const char *kernel_cmdline,
280 const char *initrd_filename, const char *cpu_model)
282 mips_jazz_init(ram_size, cpu_model, JAZZ_MAGNUM);
286 void mips_pica61_init (ram_addr_t ram_size,
287 const char *boot_device,
288 const char *kernel_filename, const char *kernel_cmdline,
289 const char *initrd_filename, const char *cpu_model)
291 mips_jazz_init(ram_size, cpu_model, JAZZ_PICA61);
294 static QEMUMachine mips_magnum_machine = {
296 .desc = "MIPS Magnum",
297 .init = mips_magnum_init,
301 static QEMUMachine mips_pica61_machine = {
303 .desc = "Acer Pica 61",
304 .init = mips_pica61_init,
308 static void mips_jazz_machine_init(void)
310 qemu_register_machine(&mips_magnum_machine);
311 qemu_register_machine(&mips_pica61_machine);
314 machine_init(mips_jazz_machine_init);