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9a64fbe4 1/*
a541f297 2 * QEMU PPC PREP hardware System Emulator
5fafdf24 3 *
47103572 4 * Copyright (c) 2003-2007 Jocelyn Mayer
5fafdf24 5 *
a541f297
FB
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:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
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
22 * THE SOFTWARE.
9a64fbe4 23 */
75610155 24#include "hw/hw.h"
0d09e41a
PB
25#include "hw/timer/m48t59.h"
26#include "hw/i386/pc.h"
27#include "hw/char/serial.h"
28#include "hw/block/fdc.h"
1422e32d 29#include "net/net.h"
9c17d615 30#include "sysemu/sysemu.h"
0d09e41a 31#include "hw/isa/isa.h"
75610155
AF
32#include "hw/pci/pci.h"
33#include "hw/pci/pci_host.h"
0d09e41a 34#include "hw/ppc/ppc.h"
75610155 35#include "hw/boards.h"
1de7afc9 36#include "qemu/log.h"
75610155
AF
37#include "hw/ide.h"
38#include "hw/loader.h"
0d09e41a
PB
39#include "hw/timer/mc146818rtc.h"
40#include "hw/isa/pc87312.h"
9c17d615
PB
41#include "sysemu/blockdev.h"
42#include "sysemu/arch_init.h"
97c42c3c 43#include "sysemu/qtest.h"
022c62cb 44#include "exec/address-spaces.h"
97c42c3c 45#include "elf.h"
9fddaa0c 46
9a64fbe4 47//#define HARD_DEBUG_PPC_IO
a541f297 48//#define DEBUG_PPC_IO
9a64fbe4 49
fe33cc71
JM
50/* SMP is not enabled, for now */
51#define MAX_CPUS 1
52
e4bcb14c
TS
53#define MAX_IDE_BUS 2
54
bba831e8 55#define BIOS_SIZE (1024 * 1024)
b6b8bd18
FB
56#define BIOS_FILENAME "ppc_rom.bin"
57#define KERNEL_LOAD_ADDR 0x01000000
58#define INITRD_LOAD_ADDR 0x01800000
64201201 59
9a64fbe4
FB
60#if defined (HARD_DEBUG_PPC_IO) && !defined (DEBUG_PPC_IO)
61#define DEBUG_PPC_IO
62#endif
63
64#if defined (HARD_DEBUG_PPC_IO)
001faf32 65#define PPC_IO_DPRINTF(fmt, ...) \
9a64fbe4 66do { \
8fec2b8c 67 if (qemu_loglevel_mask(CPU_LOG_IOPORT)) { \
001faf32 68 qemu_log("%s: " fmt, __func__ , ## __VA_ARGS__); \
9a64fbe4 69 } else { \
001faf32 70 printf("%s : " fmt, __func__ , ## __VA_ARGS__); \
9a64fbe4
FB
71 } \
72} while (0)
73#elif defined (DEBUG_PPC_IO)
0bf9e31a
BS
74#define PPC_IO_DPRINTF(fmt, ...) \
75qemu_log_mask(CPU_LOG_IOPORT, fmt, ## __VA_ARGS__)
9a64fbe4 76#else
001faf32 77#define PPC_IO_DPRINTF(fmt, ...) do { } while (0)
9a64fbe4
FB
78#endif
79
64201201 80/* Constants for devices init */
a541f297
FB
81static const int ide_iobase[2] = { 0x1f0, 0x170 };
82static const int ide_iobase2[2] = { 0x3f6, 0x376 };
83static const int ide_irq[2] = { 13, 13 };
84
85#define NE2000_NB_MAX 6
86
87static uint32_t ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
88static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
9a64fbe4 89
64201201 90/* ISA IO ports bridge */
9a64fbe4
FB
91#define PPC_IO_BASE 0x80000000
92
64201201
FB
93/* PowerPC control and status registers */
94#if 0 // Not used
95static struct {
96 /* IDs */
97 uint32_t veni_devi;
98 uint32_t revi;
99 /* Control and status */
100 uint32_t gcsr;
101 uint32_t xcfr;
102 uint32_t ct32;
103 uint32_t mcsr;
104 /* General purpose registers */
105 uint32_t gprg[6];
106 /* Exceptions */
107 uint32_t feen;
108 uint32_t fest;
109 uint32_t fema;
110 uint32_t fecl;
111 uint32_t eeen;
112 uint32_t eest;
113 uint32_t eecl;
114 uint32_t eeint;
115 uint32_t eemck0;
116 uint32_t eemck1;
117 /* Error diagnostic */
118} XCSR;
64201201 119
36081602 120static void PPC_XCSR_writeb (void *opaque,
a8170e5e 121 hwaddr addr, uint32_t value)
64201201 122{
90e189ec
BS
123 printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
124 value);
64201201
FB
125}
126
36081602 127static void PPC_XCSR_writew (void *opaque,
a8170e5e 128 hwaddr addr, uint32_t value)
9a64fbe4 129{
90e189ec
BS
130 printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
131 value);
9a64fbe4
FB
132}
133
36081602 134static void PPC_XCSR_writel (void *opaque,
a8170e5e 135 hwaddr addr, uint32_t value)
9a64fbe4 136{
90e189ec
BS
137 printf("%s: 0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", __func__, addr,
138 value);
9a64fbe4
FB
139}
140
a8170e5e 141static uint32_t PPC_XCSR_readb (void *opaque, hwaddr addr)
64201201
FB
142{
143 uint32_t retval = 0;
9a64fbe4 144
90e189ec
BS
145 printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
146 retval);
9a64fbe4 147
64201201
FB
148 return retval;
149}
150
a8170e5e 151static uint32_t PPC_XCSR_readw (void *opaque, hwaddr addr)
9a64fbe4 152{
64201201
FB
153 uint32_t retval = 0;
154
90e189ec
BS
155 printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
156 retval);
64201201
FB
157
158 return retval;
9a64fbe4
FB
159}
160
a8170e5e 161static uint32_t PPC_XCSR_readl (void *opaque, hwaddr addr)
9a64fbe4
FB
162{
163 uint32_t retval = 0;
164
90e189ec
BS
165 printf("%s: 0x" TARGET_FMT_plx " <= %08" PRIx32 "\n", __func__, addr,
166 retval);
9a64fbe4
FB
167
168 return retval;
169}
170
0c90c52f
AK
171static const MemoryRegionOps PPC_XCSR_ops = {
172 .old_mmio = {
173 .read = { PPC_XCSR_readb, PPC_XCSR_readw, PPC_XCSR_readl, },
174 .write = { PPC_XCSR_writeb, PPC_XCSR_writew, PPC_XCSR_writel, },
175 },
176 .endianness = DEVICE_LITTLE_ENDIAN,
9a64fbe4
FB
177};
178
b6b8bd18 179#endif
9a64fbe4 180
64201201 181/* Fake super-io ports for PREP platform (Intel 82378ZB) */
c227f099 182typedef struct sysctrl_t {
c4781a51 183 qemu_irq reset_irq;
43a34704 184 M48t59State *nvram;
64201201
FB
185 uint8_t state;
186 uint8_t syscontrol;
da9b266b 187 int contiguous_map;
fb3444b8 188 int endian;
c227f099 189} sysctrl_t;
9a64fbe4 190
64201201
FB
191enum {
192 STATE_HARDFILE = 0x01,
9a64fbe4 193};
9a64fbe4 194
c227f099 195static sysctrl_t *sysctrl;
9a64fbe4 196
a541f297 197static void PREP_io_800_writeb (void *opaque, uint32_t addr, uint32_t val)
9a64fbe4 198{
c227f099 199 sysctrl_t *sysctrl = opaque;
64201201 200
aae9366a
JM
201 PPC_IO_DPRINTF("0x%08" PRIx32 " => 0x%02" PRIx32 "\n",
202 addr - PPC_IO_BASE, val);
9a64fbe4
FB
203 switch (addr) {
204 case 0x0092:
205 /* Special port 92 */
206 /* Check soft reset asked */
64201201 207 if (val & 0x01) {
c4781a51
JM
208 qemu_irq_raise(sysctrl->reset_irq);
209 } else {
210 qemu_irq_lower(sysctrl->reset_irq);
9a64fbe4
FB
211 }
212 /* Check LE mode */
64201201 213 if (val & 0x02) {
fb3444b8
FB
214 sysctrl->endian = 1;
215 } else {
216 sysctrl->endian = 0;
9a64fbe4
FB
217 }
218 break;
64201201
FB
219 case 0x0800:
220 /* Motorola CPU configuration register : read-only */
221 break;
222 case 0x0802:
223 /* Motorola base module feature register : read-only */
224 break;
225 case 0x0803:
226 /* Motorola base module status register : read-only */
227 break;
9a64fbe4 228 case 0x0808:
64201201
FB
229 /* Hardfile light register */
230 if (val & 1)
231 sysctrl->state |= STATE_HARDFILE;
232 else
233 sysctrl->state &= ~STATE_HARDFILE;
9a64fbe4
FB
234 break;
235 case 0x0810:
236 /* Password protect 1 register */
64201201
FB
237 if (sysctrl->nvram != NULL)
238 m48t59_toggle_lock(sysctrl->nvram, 1);
9a64fbe4
FB
239 break;
240 case 0x0812:
241 /* Password protect 2 register */
64201201
FB
242 if (sysctrl->nvram != NULL)
243 m48t59_toggle_lock(sysctrl->nvram, 2);
9a64fbe4
FB
244 break;
245 case 0x0814:
64201201 246 /* L2 invalidate register */
c68ea704 247 // tlb_flush(first_cpu, 1);
9a64fbe4
FB
248 break;
249 case 0x081C:
250 /* system control register */
64201201 251 sysctrl->syscontrol = val & 0x0F;
9a64fbe4
FB
252 break;
253 case 0x0850:
254 /* I/O map type register */
da9b266b 255 sysctrl->contiguous_map = val & 0x01;
9a64fbe4
FB
256 break;
257 default:
aae9366a
JM
258 printf("ERROR: unaffected IO port write: %04" PRIx32
259 " => %02" PRIx32"\n", addr, val);
9a64fbe4
FB
260 break;
261 }
262}
263
a541f297 264static uint32_t PREP_io_800_readb (void *opaque, uint32_t addr)
9a64fbe4 265{
c227f099 266 sysctrl_t *sysctrl = opaque;
9a64fbe4
FB
267 uint32_t retval = 0xFF;
268
269 switch (addr) {
270 case 0x0092:
271 /* Special port 92 */
b6f54b31 272 retval = sysctrl->endian << 1;
64201201
FB
273 break;
274 case 0x0800:
275 /* Motorola CPU configuration register */
276 retval = 0xEF; /* MPC750 */
277 break;
278 case 0x0802:
279 /* Motorola Base module feature register */
280 retval = 0xAD; /* No ESCC, PMC slot neither ethernet */
281 break;
282 case 0x0803:
283 /* Motorola base module status register */
284 retval = 0xE0; /* Standard MPC750 */
9a64fbe4
FB
285 break;
286 case 0x080C:
287 /* Equipment present register:
288 * no L2 cache
289 * no upgrade processor
290 * no cards in PCI slots
291 * SCSI fuse is bad
292 */
64201201
FB
293 retval = 0x3C;
294 break;
295 case 0x0810:
296 /* Motorola base module extended feature register */
297 retval = 0x39; /* No USB, CF and PCI bridge. NVRAM present */
9a64fbe4 298 break;
da9b266b
FB
299 case 0x0814:
300 /* L2 invalidate: don't care */
301 break;
9a64fbe4
FB
302 case 0x0818:
303 /* Keylock */
304 retval = 0x00;
305 break;
306 case 0x081C:
307 /* system control register
308 * 7 - 6 / 1 - 0: L2 cache enable
309 */
64201201 310 retval = sysctrl->syscontrol;
9a64fbe4
FB
311 break;
312 case 0x0823:
313 /* */
314 retval = 0x03; /* no L2 cache */
315 break;
316 case 0x0850:
317 /* I/O map type register */
da9b266b 318 retval = sysctrl->contiguous_map;
9a64fbe4
FB
319 break;
320 default:
aae9366a 321 printf("ERROR: unaffected IO port: %04" PRIx32 " read\n", addr);
9a64fbe4
FB
322 break;
323 }
aae9366a
JM
324 PPC_IO_DPRINTF("0x%08" PRIx32 " <= 0x%02" PRIx32 "\n",
325 addr - PPC_IO_BASE, retval);
9a64fbe4
FB
326
327 return retval;
328}
329
a8170e5e
AK
330static inline hwaddr prep_IO_address(sysctrl_t *sysctrl,
331 hwaddr addr)
da9b266b
FB
332{
333 if (sysctrl->contiguous_map == 0) {
334 /* 64 KB contiguous space for IOs */
335 addr &= 0xFFFF;
336 } else {
337 /* 8 MB non-contiguous space for IOs */
338 addr = (addr & 0x1F) | ((addr & 0x007FFF000) >> 7);
339 }
340
341 return addr;
342}
343
a8170e5e 344static void PPC_prep_io_writeb (void *opaque, hwaddr addr,
da9b266b
FB
345 uint32_t value)
346{
c227f099 347 sysctrl_t *sysctrl = opaque;
da9b266b
FB
348
349 addr = prep_IO_address(sysctrl, addr);
afcea8cb 350 cpu_outb(addr, value);
da9b266b
FB
351}
352
a8170e5e 353static uint32_t PPC_prep_io_readb (void *opaque, hwaddr addr)
da9b266b 354{
c227f099 355 sysctrl_t *sysctrl = opaque;
da9b266b
FB
356 uint32_t ret;
357
358 addr = prep_IO_address(sysctrl, addr);
afcea8cb 359 ret = cpu_inb(addr);
da9b266b
FB
360
361 return ret;
362}
363
a8170e5e 364static void PPC_prep_io_writew (void *opaque, hwaddr addr,
da9b266b
FB
365 uint32_t value)
366{
c227f099 367 sysctrl_t *sysctrl = opaque;
da9b266b
FB
368
369 addr = prep_IO_address(sysctrl, addr);
90e189ec 370 PPC_IO_DPRINTF("0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", addr, value);
afcea8cb 371 cpu_outw(addr, value);
da9b266b
FB
372}
373
a8170e5e 374static uint32_t PPC_prep_io_readw (void *opaque, hwaddr addr)
da9b266b 375{
c227f099 376 sysctrl_t *sysctrl = opaque;
da9b266b
FB
377 uint32_t ret;
378
379 addr = prep_IO_address(sysctrl, addr);
afcea8cb 380 ret = cpu_inw(addr);
90e189ec 381 PPC_IO_DPRINTF("0x" TARGET_FMT_plx " <= 0x%08" PRIx32 "\n", addr, ret);
da9b266b
FB
382
383 return ret;
384}
385
a8170e5e 386static void PPC_prep_io_writel (void *opaque, hwaddr addr,
da9b266b
FB
387 uint32_t value)
388{
c227f099 389 sysctrl_t *sysctrl = opaque;
da9b266b
FB
390
391 addr = prep_IO_address(sysctrl, addr);
90e189ec 392 PPC_IO_DPRINTF("0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", addr, value);
afcea8cb 393 cpu_outl(addr, value);
da9b266b
FB
394}
395
a8170e5e 396static uint32_t PPC_prep_io_readl (void *opaque, hwaddr addr)
da9b266b 397{
c227f099 398 sysctrl_t *sysctrl = opaque;
da9b266b
FB
399 uint32_t ret;
400
401 addr = prep_IO_address(sysctrl, addr);
afcea8cb 402 ret = cpu_inl(addr);
90e189ec 403 PPC_IO_DPRINTF("0x" TARGET_FMT_plx " <= 0x%08" PRIx32 "\n", addr, ret);
da9b266b
FB
404
405 return ret;
406}
407
0c90c52f
AK
408static const MemoryRegionOps PPC_prep_io_ops = {
409 .old_mmio = {
410 .read = { PPC_prep_io_readb, PPC_prep_io_readw, PPC_prep_io_readl },
411 .write = { PPC_prep_io_writeb, PPC_prep_io_writew, PPC_prep_io_writel },
412 },
413 .endianness = DEVICE_LITTLE_ENDIAN,
da9b266b
FB
414};
415
64201201 416#define NVRAM_SIZE 0x2000
a541f297 417
4556bd8b
BS
418static void cpu_request_exit(void *opaque, int irq, int level)
419{
e2684c0b 420 CPUPPCState *env = cpu_single_env;
4556bd8b
BS
421
422 if (env && level) {
60a3e17a 423 cpu_exit(CPU(ppc_env_get_cpu(env)));
4556bd8b
BS
424 }
425}
426
1bba0dc9
AF
427static void ppc_prep_reset(void *opaque)
428{
5c3e735f 429 PowerPCCPU *cpu = opaque;
1bba0dc9 430
5c3e735f 431 cpu_reset(CPU(cpu));
88432756
FC
432
433 /* Reset address */
434 cpu->env.nip = 0xfffffffc;
1bba0dc9
AF
435}
436
26aa7d72 437/* PowerPC PREP hardware initialisation */
5f072e1f 438static void ppc_prep_init(QEMUMachineInitArgs *args)
a541f297 439{
5f072e1f
EH
440 ram_addr_t ram_size = args->ram_size;
441 const char *cpu_model = args->cpu_model;
442 const char *kernel_filename = args->kernel_filename;
443 const char *kernel_cmdline = args->kernel_cmdline;
444 const char *initrd_filename = args->initrd_filename;
445 const char *boot_device = args->boot_device;
0c90c52f 446 MemoryRegion *sysmem = get_system_memory();
a9bf3df0 447 PowerPCCPU *cpu = NULL;
e2684c0b 448 CPUPPCState *env = NULL;
5cea8590 449 char *filename;
c227f099 450 nvram_t nvram;
43a34704 451 M48t59State *m48t59;
0c90c52f 452 MemoryRegion *PPC_io_memory = g_new(MemoryRegion, 1);
0c90c52f
AK
453#if 0
454 MemoryRegion *xcsr = g_new(MemoryRegion, 1);
455#endif
4157a662 456 int linux_boot, i, nb_nics1, bios_size;
0c90c52f
AK
457 MemoryRegion *ram = g_new(MemoryRegion, 1);
458 MemoryRegion *bios = g_new(MemoryRegion, 1);
093209cd
BS
459 uint32_t kernel_base, initrd_base;
460 long kernel_size, initrd_size;
8ca8c7bc 461 DeviceState *dev;
8ca8c7bc 462 PCIHostState *pcihost;
46e50e9d 463 PCIBus *pci_bus;
506b7ddf 464 PCIDevice *pci;
48a18b3c 465 ISABus *isa_bus;
52a71bff 466 ISADevice *isa;
4556bd8b 467 qemu_irq *cpu_exit_irq;
28c5af54 468 int ppc_boot_device;
f455e98c 469 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
64201201 470
7267c094 471 sysctrl = g_malloc0(sizeof(sysctrl_t));
a541f297
FB
472
473 linux_boot = (kernel_filename != NULL);
0a032cbe 474
c68ea704 475 /* init CPUs */
94fc95cd 476 if (cpu_model == NULL)
b37fc148 477 cpu_model = "602";
fe33cc71 478 for (i = 0; i < smp_cpus; i++) {
a9bf3df0
AF
479 cpu = cpu_ppc_init(cpu_model);
480 if (cpu == NULL) {
aaed909a
FB
481 fprintf(stderr, "Unable to find PowerPC CPU definition\n");
482 exit(1);
483 }
a9bf3df0
AF
484 env = &cpu->env;
485
4018bae9
JM
486 if (env->flags & POWERPC_FLAG_RTC_CLK) {
487 /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */
488 cpu_ppc_tb_init(env, 7812500UL);
489 } else {
490 /* Set time-base frequency to 100 Mhz */
491 cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
492 }
5c3e735f 493 qemu_register_reset(ppc_prep_reset, cpu);
fe33cc71 494 }
a541f297
FB
495
496 /* allocate RAM */
c5705a77
AK
497 memory_region_init_ram(ram, "ppc_prep.ram", ram_size);
498 vmstate_register_ram_global(ram);
0c90c52f 499 memory_region_add_subregion(sysmem, 0, ram);
cf9c147c 500
64201201 501 /* allocate and load BIOS */
c5705a77 502 memory_region_init_ram(bios, "ppc_prep.bios", BIOS_SIZE);
809680c0
AF
503 memory_region_set_readonly(bios, true);
504 memory_region_add_subregion(sysmem, (uint32_t)(-BIOS_SIZE), bios);
c5705a77 505 vmstate_register_ram_global(bios);
1192dad8
JM
506 if (bios_name == NULL)
507 bios_name = BIOS_FILENAME;
5cea8590
PB
508 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
509 if (filename) {
97c42c3c
AF
510 bios_size = load_elf(filename, NULL, NULL, NULL,
511 NULL, NULL, 1, ELF_MACHINE, 0);
512 if (bios_size < 0) {
513 bios_size = get_image_size(filename);
514 if (bios_size > 0 && bios_size <= BIOS_SIZE) {
515 hwaddr bios_addr;
516 bios_size = (bios_size + 0xfff) & ~0xfff;
517 bios_addr = (uint32_t)(-bios_size);
518 bios_size = load_image_targphys(filename, bios_addr, bios_size);
519 }
520 if (bios_size > BIOS_SIZE) {
521 fprintf(stderr, "qemu: PReP bios '%s' is too large (0x%x)\n",
522 bios_name, bios_size);
523 exit(1);
524 }
525 }
5cea8590
PB
526 } else {
527 bios_size = -1;
528 }
97c42c3c
AF
529 if (bios_size < 0 && !qtest_enabled()) {
530 fprintf(stderr, "qemu: could not load PPC PReP bios '%s'\n",
531 bios_name);
532 exit(1);
5cea8590
PB
533 }
534 if (filename) {
7267c094 535 g_free(filename);
64201201 536 }
26aa7d72 537
a541f297 538 if (linux_boot) {
64201201 539 kernel_base = KERNEL_LOAD_ADDR;
a541f297 540 /* now we can load the kernel */
dcac9679
PB
541 kernel_size = load_image_targphys(kernel_filename, kernel_base,
542 ram_size - kernel_base);
64201201 543 if (kernel_size < 0) {
2ac71179 544 hw_error("qemu: could not load kernel '%s'\n", kernel_filename);
a541f297
FB
545 exit(1);
546 }
547 /* load initrd */
a541f297 548 if (initrd_filename) {
64201201 549 initrd_base = INITRD_LOAD_ADDR;
dcac9679
PB
550 initrd_size = load_image_targphys(initrd_filename, initrd_base,
551 ram_size - initrd_base);
a541f297 552 if (initrd_size < 0) {
2ac71179 553 hw_error("qemu: could not load initial ram disk '%s'\n",
4a057712 554 initrd_filename);
a541f297 555 }
64201201
FB
556 } else {
557 initrd_base = 0;
558 initrd_size = 0;
a541f297 559 }
6ac0e82d 560 ppc_boot_device = 'm';
a541f297 561 } else {
64201201
FB
562 kernel_base = 0;
563 kernel_size = 0;
564 initrd_base = 0;
565 initrd_size = 0;
28c5af54
JM
566 ppc_boot_device = '\0';
567 /* For now, OHW cannot boot from the network. */
0d913fdb
JM
568 for (i = 0; boot_device[i] != '\0'; i++) {
569 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
570 ppc_boot_device = boot_device[i];
28c5af54 571 break;
0d913fdb 572 }
28c5af54
JM
573 }
574 if (ppc_boot_device == '\0') {
575 fprintf(stderr, "No valid boot device for Mac99 machine\n");
576 exit(1);
577 }
a541f297
FB
578 }
579
dd37a5e4 580 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
2ac71179 581 hw_error("Only 6xx bus is supported on PREP machine\n");
dd37a5e4 582 }
8ca8c7bc
AF
583
584 dev = qdev_create(NULL, "raven-pcihost");
8558d942 585 pcihost = PCI_HOST_BRIDGE(dev);
f05f6b4a 586 object_property_add_child(qdev_get_machine(), "raven", OBJECT(dev), NULL);
f424d5c4 587 qdev_init_nofail(dev);
8ca8c7bc
AF
588 pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0");
589 if (pci_bus == NULL) {
590 fprintf(stderr, "Couldn't create PCI host controller.\n");
591 exit(1);
592 }
8ca8c7bc 593
506b7ddf
AF
594 /* PCI -> ISA bridge */
595 pci = pci_create_simple(pci_bus, PCI_DEVFN(1, 0), "i82378");
596 cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
597 qdev_connect_gpio_out(&pci->qdev, 0,
598 first_cpu->irq_inputs[PPC6xx_INPUT_INT]);
599 qdev_connect_gpio_out(&pci->qdev, 1, *cpu_exit_irq);
600 sysbus_connect_irq(&pcihost->busdev, 0, qdev_get_gpio_in(&pci->qdev, 9));
601 sysbus_connect_irq(&pcihost->busdev, 1, qdev_get_gpio_in(&pci->qdev, 11));
602 sysbus_connect_irq(&pcihost->busdev, 2, qdev_get_gpio_in(&pci->qdev, 9));
603 sysbus_connect_irq(&pcihost->busdev, 3, qdev_get_gpio_in(&pci->qdev, 11));
2ae0e48d 604 isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci), "isa.0"));
506b7ddf 605
52a71bff
HP
606 /* Super I/O (parallel + serial ports) */
607 isa = isa_create(isa_bus, TYPE_PC87312);
4a17cc4f
AF
608 dev = DEVICE(isa);
609 qdev_prop_set_uint8(dev, "config", 13); /* fdc, ser0, ser1, par0 */
610 qdev_init_nofail(dev);
52a71bff 611
da9b266b 612 /* Register 8 MB of ISA IO space (needed for non-contiguous map) */
0c90c52f
AK
613 memory_region_init_io(PPC_io_memory, &PPC_prep_io_ops, sysctrl,
614 "ppc-io", 0x00800000);
615 memory_region_add_subregion(sysmem, 0x80000000, PPC_io_memory);
64201201 616
a541f297 617 /* init basic PC hardware */
78895427 618 pci_vga_init(pci_bus);
a541f297 619
a541f297
FB
620 nb_nics1 = nb_nics;
621 if (nb_nics1 > NE2000_NB_MAX)
622 nb_nics1 = NE2000_NB_MAX;
623 for(i = 0; i < nb_nics1; i++) {
5652ef78 624 if (nd_table[i].model == NULL) {
7267c094 625 nd_table[i].model = g_strdup("ne2k_isa");
5652ef78
AJ
626 }
627 if (strcmp(nd_table[i].model, "ne2k_isa") == 0) {
48a18b3c
HP
628 isa_ne2000_init(isa_bus, ne2000_io[i], ne2000_irq[i],
629 &nd_table[i]);
a41b2ff2 630 } else {
07caea31 631 pci_nic_init_nofail(&nd_table[i], "ne2k_pci", NULL);
a41b2ff2 632 }
a541f297 633 }
a541f297 634
75717903 635 ide_drive_get(hd, MAX_IDE_BUS);
81aa0647 636 for(i = 0; i < MAX_IDE_BUS; i++) {
48a18b3c 637 isa_ide_init(isa_bus, ide_iobase[i], ide_iobase2[i], ide_irq[i],
e4bcb14c
TS
638 hd[2 * i],
639 hd[2 * i + 1]);
a541f297 640 }
48a18b3c 641 isa_create_simple(isa_bus, "i8042");
4556bd8b 642
c4781a51 643 sysctrl->reset_irq = first_cpu->irq_inputs[PPC6xx_INPUT_HRESET];
a541f297 644 /* System control ports */
64201201
FB
645 register_ioport_read(0x0092, 0x01, 1, &PREP_io_800_readb, sysctrl);
646 register_ioport_write(0x0092, 0x01, 1, &PREP_io_800_writeb, sysctrl);
647 register_ioport_read(0x0800, 0x52, 1, &PREP_io_800_readb, sysctrl);
648 register_ioport_write(0x0800, 0x52, 1, &PREP_io_800_writeb, sysctrl);
64201201 649 /* PowerPC control and status register group */
b6b8bd18 650#if 0
0c90c52f
AK
651 memory_region_init_io(xcsr, &PPC_XCSR_ops, NULL, "ppc-xcsr", 0x1000);
652 memory_region_add_subregion(sysmem, 0xFEFF0000, xcsr);
b6b8bd18 653#endif
a541f297 654
094b287f 655 if (usb_enabled(false)) {
afb9a60e 656 pci_create_simple(pci_bus, -1, "pci-ohci");
0d92ed30
PB
657 }
658
48e93728 659 m48t59 = m48t59_init_isa(isa_bus, 0x0074, NVRAM_SIZE, 59);
3cbee15b 660 if (m48t59 == NULL)
64201201 661 return;
3cbee15b 662 sysctrl->nvram = m48t59;
64201201
FB
663
664 /* Initialise NVRAM */
3cbee15b
JM
665 nvram.opaque = m48t59;
666 nvram.read_fn = &m48t59_read;
667 nvram.write_fn = &m48t59_write;
6ac0e82d 668 PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "PREP", ram_size, ppc_boot_device,
64201201 669 kernel_base, kernel_size,
b6b8bd18 670 kernel_cmdline,
64201201
FB
671 initrd_base, initrd_size,
672 /* XXX: need an option to load a NVRAM image */
b6b8bd18
FB
673 0,
674 graphic_width, graphic_height, graphic_depth);
c0e564d5
FB
675
676 /* Special port to get debug messages from Open-Firmware */
677 register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL);
a541f297 678}
c0e564d5 679
f80f9ec9 680static QEMUMachine prep_machine = {
4b32e168
AL
681 .name = "prep",
682 .desc = "PowerPC PREP platform",
683 .init = ppc_prep_init,
3d878caa 684 .max_cpus = MAX_CPUS,
e4ada29e 685 DEFAULT_MACHINE_OPTIONS,
c0e564d5 686};
f80f9ec9
AL
687
688static void prep_machine_init(void)
689{
690 qemu_register_machine(&prep_machine);
691}
692
693machine_init(prep_machine_init);