]>
git.proxmox.com Git - qemu.git/blob - hw/ppc_prep.c
d504b1c6d83d77d8b9dde411795c4ebf208bcb4d
2 * QEMU PPC PREP hardware System Emulator
4 * Copyright (c) 2003-2007 Jocelyn Mayer
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 //#define HARD_DEBUG_PPC_IO
27 //#define DEBUG_PPC_IO
29 #define BIOS_FILENAME "ppc_rom.bin"
30 #define KERNEL_LOAD_ADDR 0x01000000
31 #define INITRD_LOAD_ADDR 0x01800000
36 #if defined (HARD_DEBUG_PPC_IO) && !defined (DEBUG_PPC_IO)
40 #if defined (HARD_DEBUG_PPC_IO)
41 #define PPC_IO_DPRINTF(fmt, args...) \
43 if (loglevel & CPU_LOG_IOPORT) { \
44 fprintf(logfile, "%s: " fmt, __func__ , ##args); \
46 printf("%s : " fmt, __func__ , ##args); \
49 #elif defined (DEBUG_PPC_IO)
50 #define PPC_IO_DPRINTF(fmt, args...) \
52 if (loglevel & CPU_LOG_IOPORT) { \
53 fprintf(logfile, "%s: " fmt, __func__ , ##args); \
57 #define PPC_IO_DPRINTF(fmt, args...) do { } while (0)
60 /* Constants for devices init */
61 static const int ide_iobase
[2] = { 0x1f0, 0x170 };
62 static const int ide_iobase2
[2] = { 0x3f6, 0x376 };
63 static const int ide_irq
[2] = { 13, 13 };
65 #define NE2000_NB_MAX 6
67 static uint32_t ne2000_io
[NE2000_NB_MAX
] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
68 static int ne2000_irq
[NE2000_NB_MAX
] = { 9, 10, 11, 3, 4, 5 };
70 //static PITState *pit;
72 /* ISA IO ports bridge */
73 #define PPC_IO_BASE 0x80000000
75 /* Speaker port 0x61 */
77 int dummy_refresh_clock
;
79 static void speaker_ioport_write(void *opaque
, uint32_t addr
, uint32_t val
)
82 speaker_data_on
= (val
>> 1) & 1;
83 pit_set_gate(pit
, 2, val
& 1);
87 static uint32_t speaker_ioport_read (void *opaque
, uint32_t addr
)
91 out
= pit_get_out(pit
, 2, qemu_get_clock(vm_clock
));
92 dummy_refresh_clock
^= 1;
93 return (speaker_data_on
<< 1) | pit_get_gate(pit
, 2) | (out
<< 5) |
94 (dummy_refresh_clock
<< 4);
99 static void pic_irq_request (void *opaque
, int level
)
101 ppc_set_irq(opaque
, PPC_INTERRUPT_EXT
, level
);
104 /* PCI intack register */
105 /* Read-only register (?) */
106 static void _PPC_intack_write (void *opaque
,
107 target_phys_addr_t addr
, uint32_t value
)
109 // printf("%s: 0x%08x => 0x%08x\n", __func__, addr, value);
112 static inline uint32_t _PPC_intack_read (target_phys_addr_t addr
)
116 if (addr
== 0xBFFFFFF0)
117 retval
= pic_intack_read(isa_pic
);
118 // printf("%s: 0x%08x <= %d\n", __func__, addr, retval);
123 static uint32_t PPC_intack_readb (void *opaque
, target_phys_addr_t addr
)
125 return _PPC_intack_read(addr
);
128 static uint32_t PPC_intack_readw (void *opaque
, target_phys_addr_t addr
)
130 #ifdef TARGET_WORDS_BIGENDIAN
131 return bswap16(_PPC_intack_read(addr
));
133 return _PPC_intack_read(addr
);
137 static uint32_t PPC_intack_readl (void *opaque
, target_phys_addr_t addr
)
139 #ifdef TARGET_WORDS_BIGENDIAN
140 return bswap32(_PPC_intack_read(addr
));
142 return _PPC_intack_read(addr
);
146 static CPUWriteMemoryFunc
*PPC_intack_write
[] = {
152 static CPUReadMemoryFunc
*PPC_intack_read
[] = {
158 /* PowerPC control and status registers */
164 /* Control and status */
169 /* General purpose registers */
182 /* Error diagnostic */
185 static void PPC_XCSR_writeb (void *opaque
, target_phys_addr_t addr
, uint32_t value
)
187 printf("%s: 0x%08lx => 0x%08x\n", __func__
, (long)addr
, value
);
190 static void PPC_XCSR_writew (void *opaque
, target_phys_addr_t addr
, uint32_t value
)
192 #ifdef TARGET_WORDS_BIGENDIAN
193 value
= bswap16(value
);
195 printf("%s: 0x%08lx => 0x%08x\n", __func__
, (long)addr
, value
);
198 static void PPC_XCSR_writel (void *opaque
, target_phys_addr_t addr
, uint32_t value
)
200 #ifdef TARGET_WORDS_BIGENDIAN
201 value
= bswap32(value
);
203 printf("%s: 0x%08lx => 0x%08x\n", __func__
, (long)addr
, value
);
206 static uint32_t PPC_XCSR_readb (void *opaque
, target_phys_addr_t addr
)
210 printf("%s: 0x%08lx <= %d\n", __func__
, (long)addr
, retval
);
215 static uint32_t PPC_XCSR_readw (void *opaque
, target_phys_addr_t addr
)
219 printf("%s: 0x%08lx <= %d\n", __func__
, (long)addr
, retval
);
220 #ifdef TARGET_WORDS_BIGENDIAN
221 retval
= bswap16(retval
);
227 static uint32_t PPC_XCSR_readl (void *opaque
, target_phys_addr_t addr
)
231 printf("%s: 0x%08lx <= %d\n", __func__
, (long)addr
, retval
);
232 #ifdef TARGET_WORDS_BIGENDIAN
233 retval
= bswap32(retval
);
239 static CPUWriteMemoryFunc
*PPC_XCSR_write
[] = {
245 static CPUReadMemoryFunc
*PPC_XCSR_read
[] = {
252 /* Fake super-io ports for PREP platform (Intel 82378ZB) */
253 typedef struct sysctrl_t
{
263 STATE_HARDFILE
= 0x01,
266 static sysctrl_t
*sysctrl
;
268 static void PREP_io_write (void *opaque
, uint32_t addr
, uint32_t val
)
270 sysctrl_t
*sysctrl
= opaque
;
272 PPC_IO_DPRINTF("0x%08lx => 0x%08x\n", (long)addr
- PPC_IO_BASE
, val
);
273 sysctrl
->fake_io
[addr
- 0x0398] = val
;
276 static uint32_t PREP_io_read (void *opaque
, uint32_t addr
)
278 sysctrl_t
*sysctrl
= opaque
;
280 PPC_IO_DPRINTF("0x%08lx <= 0x%08x\n", (long)addr
- PPC_IO_BASE
,
281 sysctrl
->fake_io
[addr
- 0x0398]);
282 return sysctrl
->fake_io
[addr
- 0x0398];
285 static void PREP_io_800_writeb (void *opaque
, uint32_t addr
, uint32_t val
)
287 sysctrl_t
*sysctrl
= opaque
;
289 PPC_IO_DPRINTF("0x%08lx => 0x%08x\n", (long)addr
- PPC_IO_BASE
, val
);
292 /* Special port 92 */
293 /* Check soft reset asked */
295 // cpu_interrupt(first_cpu, PPC_INTERRUPT_RESET);
305 /* Motorola CPU configuration register : read-only */
308 /* Motorola base module feature register : read-only */
311 /* Motorola base module status register : read-only */
314 /* Hardfile light register */
316 sysctrl
->state
|= STATE_HARDFILE
;
318 sysctrl
->state
&= ~STATE_HARDFILE
;
321 /* Password protect 1 register */
322 if (sysctrl
->nvram
!= NULL
)
323 m48t59_toggle_lock(sysctrl
->nvram
, 1);
326 /* Password protect 2 register */
327 if (sysctrl
->nvram
!= NULL
)
328 m48t59_toggle_lock(sysctrl
->nvram
, 2);
331 /* L2 invalidate register */
332 // tlb_flush(first_cpu, 1);
335 /* system control register */
336 sysctrl
->syscontrol
= val
& 0x0F;
339 /* I/O map type register */
340 sysctrl
->contiguous_map
= val
& 0x01;
343 printf("ERROR: unaffected IO port write: %04lx => %02x\n",
349 static uint32_t PREP_io_800_readb (void *opaque
, uint32_t addr
)
351 sysctrl_t
*sysctrl
= opaque
;
352 uint32_t retval
= 0xFF;
356 /* Special port 92 */
360 /* Motorola CPU configuration register */
361 retval
= 0xEF; /* MPC750 */
364 /* Motorola Base module feature register */
365 retval
= 0xAD; /* No ESCC, PMC slot neither ethernet */
368 /* Motorola base module status register */
369 retval
= 0xE0; /* Standard MPC750 */
372 /* Equipment present register:
374 * no upgrade processor
375 * no cards in PCI slots
381 /* Motorola base module extended feature register */
382 retval
= 0x39; /* No USB, CF and PCI bridge. NVRAM present */
385 /* L2 invalidate: don't care */
392 /* system control register
393 * 7 - 6 / 1 - 0: L2 cache enable
395 retval
= sysctrl
->syscontrol
;
399 retval
= 0x03; /* no L2 cache */
402 /* I/O map type register */
403 retval
= sysctrl
->contiguous_map
;
406 printf("ERROR: unaffected IO port: %04lx read\n", (long)addr
);
409 PPC_IO_DPRINTF("0x%08lx <= 0x%08x\n", (long)addr
- PPC_IO_BASE
, retval
);
414 static inline target_phys_addr_t
prep_IO_address (sysctrl_t
*sysctrl
,
415 target_phys_addr_t addr
)
417 if (sysctrl
->contiguous_map
== 0) {
418 /* 64 KB contiguous space for IOs */
421 /* 8 MB non-contiguous space for IOs */
422 addr
= (addr
& 0x1F) | ((addr
& 0x007FFF000) >> 7);
428 static void PPC_prep_io_writeb (void *opaque
, target_phys_addr_t addr
,
431 sysctrl_t
*sysctrl
= opaque
;
433 addr
= prep_IO_address(sysctrl
, addr
);
434 cpu_outb(NULL
, addr
, value
);
437 static uint32_t PPC_prep_io_readb (void *opaque
, target_phys_addr_t addr
)
439 sysctrl_t
*sysctrl
= opaque
;
442 addr
= prep_IO_address(sysctrl
, addr
);
443 ret
= cpu_inb(NULL
, addr
);
448 static void PPC_prep_io_writew (void *opaque
, target_phys_addr_t addr
,
451 sysctrl_t
*sysctrl
= opaque
;
453 addr
= prep_IO_address(sysctrl
, addr
);
454 #ifdef TARGET_WORDS_BIGENDIAN
455 value
= bswap16(value
);
457 PPC_IO_DPRINTF("0x%08lx => 0x%08x\n", (long)addr
, value
);
458 cpu_outw(NULL
, addr
, value
);
461 static uint32_t PPC_prep_io_readw (void *opaque
, target_phys_addr_t addr
)
463 sysctrl_t
*sysctrl
= opaque
;
466 addr
= prep_IO_address(sysctrl
, addr
);
467 ret
= cpu_inw(NULL
, addr
);
468 #ifdef TARGET_WORDS_BIGENDIAN
471 PPC_IO_DPRINTF("0x%08lx <= 0x%08x\n", (long)addr
, ret
);
476 static void PPC_prep_io_writel (void *opaque
, target_phys_addr_t addr
,
479 sysctrl_t
*sysctrl
= opaque
;
481 addr
= prep_IO_address(sysctrl
, addr
);
482 #ifdef TARGET_WORDS_BIGENDIAN
483 value
= bswap32(value
);
485 PPC_IO_DPRINTF("0x%08lx => 0x%08x\n", (long)addr
, value
);
486 cpu_outl(NULL
, addr
, value
);
489 static uint32_t PPC_prep_io_readl (void *opaque
, target_phys_addr_t addr
)
491 sysctrl_t
*sysctrl
= opaque
;
494 addr
= prep_IO_address(sysctrl
, addr
);
495 ret
= cpu_inl(NULL
, addr
);
496 #ifdef TARGET_WORDS_BIGENDIAN
499 PPC_IO_DPRINTF("0x%08lx <= 0x%08x\n", (long)addr
, ret
);
504 CPUWriteMemoryFunc
*PPC_prep_io_write
[] = {
510 CPUReadMemoryFunc
*PPC_prep_io_read
[] = {
516 #define NVRAM_SIZE 0x2000
518 /* PowerPC PREP hardware initialisation */
519 static void ppc_prep_init (int ram_size
, int vga_ram_size
, int boot_device
,
520 DisplayState
*ds
, const char **fd_filename
,
521 int snapshot
, const char *kernel_filename
,
522 const char *kernel_cmdline
,
523 const char *initrd_filename
,
524 const char *cpu_model
)
530 int linux_boot
, i
, nb_nics1
, bios_size
;
531 unsigned long bios_offset
;
532 uint32_t kernel_base
, kernel_size
, initrd_base
, initrd_size
;
536 sysctrl
= qemu_mallocz(sizeof(sysctrl_t
));
540 linux_boot
= (kernel_filename
!= NULL
);
545 register_savevm("cpu", 0, 3, cpu_save
, cpu_load
, env
);
547 /* Default CPU is a 604 */
548 if (cpu_model
== NULL
)
550 ppc_find_by_name(cpu_model
, &def
);
552 cpu_abort(env
, "Unable to find PowerPC CPU definition\n");
554 cpu_ppc_register(env
, def
);
555 /* Set time-base frequency to 100 Mhz */
556 cpu_ppc_tb_init(env
, 100UL * 1000UL * 1000UL);
559 cpu_register_physical_memory(0, ram_size
, IO_MEM_RAM
);
561 /* allocate and load BIOS */
562 bios_offset
= ram_size
+ vga_ram_size
;
563 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, BIOS_FILENAME
);
564 bios_size
= load_image(buf
, phys_ram_base
+ bios_offset
);
565 if (bios_size
< 0 || bios_size
> BIOS_SIZE
) {
566 fprintf(stderr
, "qemu: could not load PPC PREP bios '%s'\n", buf
);
569 bios_size
= (bios_size
+ 0xfff) & ~0xfff;
570 cpu_register_physical_memory((uint32_t)(-bios_size
),
571 bios_size
, bios_offset
| IO_MEM_ROM
);
574 kernel_base
= KERNEL_LOAD_ADDR
;
575 /* now we can load the kernel */
576 kernel_size
= load_image(kernel_filename
, phys_ram_base
+ kernel_base
);
577 if (kernel_size
< 0) {
578 fprintf(stderr
, "qemu: could not load kernel '%s'\n",
583 if (initrd_filename
) {
584 initrd_base
= INITRD_LOAD_ADDR
;
585 initrd_size
= load_image(initrd_filename
,
586 phys_ram_base
+ initrd_base
);
587 if (initrd_size
< 0) {
588 fprintf(stderr
, "qemu: could not load initial ram disk '%s'\n",
604 isa_mem_base
= 0xc0000000;
605 pci_bus
= pci_prep_init();
606 // pci_bus = i440fx_init();
607 /* Register 8 MB of ISA IO space (needed for non-contiguous map) */
608 PPC_io_memory
= cpu_register_io_memory(0, PPC_prep_io_read
,
609 PPC_prep_io_write
, sysctrl
);
610 cpu_register_physical_memory(0x80000000, 0x00800000, PPC_io_memory
);
612 /* init basic PC hardware */
613 pci_vga_init(pci_bus
, ds
, phys_ram_base
+ ram_size
, ram_size
,
616 // openpic = openpic_init(0x00000000, 0xF0000000, 1);
617 isa_pic
= pic_init(pic_irq_request
, first_cpu
);
618 // pit = pit_init(0x40, 0);
620 serial_init(&pic_set_irq_new
, isa_pic
, 0x3f8, 4, serial_hds
[0]);
622 if (nb_nics1
> NE2000_NB_MAX
)
623 nb_nics1
= NE2000_NB_MAX
;
624 for(i
= 0; i
< nb_nics1
; i
++) {
625 if (nd_table
[0].model
== NULL
626 || strcmp(nd_table
[0].model
, "ne2k_isa") == 0) {
627 isa_ne2000_init(ne2000_io
[i
], ne2000_irq
[i
], &nd_table
[i
]);
629 fprintf(stderr
, "qemu: Unsupported NIC: %s\n", nd_table
[0].model
);
634 for(i
= 0; i
< 2; i
++) {
635 isa_ide_init(ide_iobase
[i
], ide_iobase2
[i
], ide_irq
[i
],
636 bs_table
[2 * i
], bs_table
[2 * i
+ 1]);
643 fdctrl_init(6, 2, 0, 0x3f0, fd_table
);
645 /* Register speaker port */
646 register_ioport_read(0x61, 1, 1, speaker_ioport_read
, NULL
);
647 register_ioport_write(0x61, 1, 1, speaker_ioport_write
, NULL
);
648 /* Register fake IO ports for PREP */
649 register_ioport_read(0x398, 2, 1, &PREP_io_read
, sysctrl
);
650 register_ioport_write(0x398, 2, 1, &PREP_io_write
, sysctrl
);
651 /* System control ports */
652 register_ioport_read(0x0092, 0x01, 1, &PREP_io_800_readb
, sysctrl
);
653 register_ioport_write(0x0092, 0x01, 1, &PREP_io_800_writeb
, sysctrl
);
654 register_ioport_read(0x0800, 0x52, 1, &PREP_io_800_readb
, sysctrl
);
655 register_ioport_write(0x0800, 0x52, 1, &PREP_io_800_writeb
, sysctrl
);
656 /* PCI intack location */
657 PPC_io_memory
= cpu_register_io_memory(0, PPC_intack_read
,
658 PPC_intack_write
, NULL
);
659 cpu_register_physical_memory(0xBFFFFFF0, 0x4, PPC_io_memory
);
660 /* PowerPC control and status register group */
662 PPC_io_memory
= cpu_register_io_memory(0, PPC_XCSR_read
, PPC_XCSR_write
, NULL
);
663 cpu_register_physical_memory(0xFEFF0000, 0x1000, PPC_io_memory
);
667 usb_ohci_init_pci(pci_bus
, 3, -1);
670 nvram
= m48t59_init(8, 0, 0x0074, NVRAM_SIZE
, 59);
673 sysctrl
->nvram
= nvram
;
675 /* Initialise NVRAM */
676 PPC_NVRAM_set_params(nvram
, NVRAM_SIZE
, "PREP", ram_size
, boot_device
,
677 kernel_base
, kernel_size
,
679 initrd_base
, initrd_size
,
680 /* XXX: need an option to load a NVRAM image */
682 graphic_width
, graphic_height
, graphic_depth
);
684 /* Special port to get debug messages from Open-Firmware */
685 register_ioport_write(0x0F00, 4, 1, &PPC_debug_write
, NULL
);
688 QEMUMachine prep_machine
= {
690 "PowerPC PREP platform",