2 * QEMU PowerPC 405 evaluation boards emulation
4 * Copyright (c) 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
24 #include "qemu/osdep.h"
25 #include "qapi/error.h"
26 #include "qemu-common.h"
29 #include "hw/ppc/ppc.h"
31 #include "hw/timer/m48t59.h"
32 #include "hw/block/flash.h"
33 #include "sysemu/sysemu.h"
34 #include "sysemu/qtest.h"
35 #include "sysemu/block-backend.h"
36 #include "hw/boards.h"
38 #include "qemu/error-report.h"
39 #include "hw/loader.h"
40 #include "exec/address-spaces.h"
42 #define BIOS_FILENAME "ppc405_rom.bin"
43 #define BIOS_SIZE (2048 * 1024)
45 #define KERNEL_LOAD_ADDR 0x00000000
46 #define INITRD_LOAD_ADDR 0x01800000
48 #define USE_FLASH_BIOS
50 //#define DEBUG_BOARD_INIT
52 /*****************************************************************************/
53 /* PPC405EP reference board (IBM) */
54 /* Standalone board with:
56 * - SDRAM (0x00000000)
57 * - Flash (0xFFF80000)
59 * - NVRAM (0xF0000000)
62 typedef struct ref405ep_fpga_t ref405ep_fpga_t
;
63 struct ref405ep_fpga_t
{
68 static uint32_t ref405ep_fpga_readb (void *opaque
, hwaddr addr
)
70 ref405ep_fpga_t
*fpga
;
89 static void ref405ep_fpga_writeb (void *opaque
,
90 hwaddr addr
, uint32_t value
)
92 ref405ep_fpga_t
*fpga
;
107 static uint32_t ref405ep_fpga_readw (void *opaque
, hwaddr addr
)
111 ret
= ref405ep_fpga_readb(opaque
, addr
) << 8;
112 ret
|= ref405ep_fpga_readb(opaque
, addr
+ 1);
117 static void ref405ep_fpga_writew (void *opaque
,
118 hwaddr addr
, uint32_t value
)
120 ref405ep_fpga_writeb(opaque
, addr
, (value
>> 8) & 0xFF);
121 ref405ep_fpga_writeb(opaque
, addr
+ 1, value
& 0xFF);
124 static uint32_t ref405ep_fpga_readl (void *opaque
, hwaddr addr
)
128 ret
= ref405ep_fpga_readb(opaque
, addr
) << 24;
129 ret
|= ref405ep_fpga_readb(opaque
, addr
+ 1) << 16;
130 ret
|= ref405ep_fpga_readb(opaque
, addr
+ 2) << 8;
131 ret
|= ref405ep_fpga_readb(opaque
, addr
+ 3);
136 static void ref405ep_fpga_writel (void *opaque
,
137 hwaddr addr
, uint32_t value
)
139 ref405ep_fpga_writeb(opaque
, addr
, (value
>> 24) & 0xFF);
140 ref405ep_fpga_writeb(opaque
, addr
+ 1, (value
>> 16) & 0xFF);
141 ref405ep_fpga_writeb(opaque
, addr
+ 2, (value
>> 8) & 0xFF);
142 ref405ep_fpga_writeb(opaque
, addr
+ 3, value
& 0xFF);
145 static const MemoryRegionOps ref405ep_fpga_ops
= {
148 ref405ep_fpga_readb
, ref405ep_fpga_readw
, ref405ep_fpga_readl
,
151 ref405ep_fpga_writeb
, ref405ep_fpga_writew
, ref405ep_fpga_writel
,
154 .endianness
= DEVICE_NATIVE_ENDIAN
,
157 static void ref405ep_fpga_reset (void *opaque
)
159 ref405ep_fpga_t
*fpga
;
166 static void ref405ep_fpga_init(MemoryRegion
*sysmem
, uint32_t base
)
168 ref405ep_fpga_t
*fpga
;
169 MemoryRegion
*fpga_memory
= g_new(MemoryRegion
, 1);
171 fpga
= g_malloc0(sizeof(ref405ep_fpga_t
));
172 memory_region_init_io(fpga_memory
, NULL
, &ref405ep_fpga_ops
, fpga
,
174 memory_region_add_subregion(sysmem
, base
, fpga_memory
);
175 qemu_register_reset(&ref405ep_fpga_reset
, fpga
);
178 static void ref405ep_init(MachineState
*machine
)
180 ram_addr_t ram_size
= machine
->ram_size
;
181 const char *kernel_filename
= machine
->kernel_filename
;
182 const char *kernel_cmdline
= machine
->kernel_cmdline
;
183 const char *initrd_filename
= machine
->initrd_filename
;
189 MemoryRegion
*sram
= g_new(MemoryRegion
, 1);
191 MemoryRegion
*ram_memories
= g_malloc(2 * sizeof(*ram_memories
));
192 hwaddr ram_bases
[2], ram_sizes
[2];
193 target_ulong sram_size
;
196 //static int phy_addr = 1;
197 target_ulong kernel_base
, initrd_base
;
198 long kernel_size
, initrd_size
;
200 int fl_idx
, fl_sectors
, len
;
202 MemoryRegion
*sysmem
= get_system_memory();
205 if (!qtest_enabled()) {
206 warn_report("qemu-system-ppcemb is deprecated, "
207 "please use qemu-system-ppc instead.");
212 memory_region_allocate_system_memory(&ram_memories
[0], NULL
, "ef405ep.ram",
215 ram_sizes
[0] = 0x08000000;
216 memory_region_init(&ram_memories
[1], NULL
, "ef405ep.ram1", 0);
217 ram_bases
[1] = 0x00000000;
218 ram_sizes
[1] = 0x00000000;
219 ram_size
= 128 * 1024 * 1024;
220 #ifdef DEBUG_BOARD_INIT
221 printf("%s: register cpu\n", __func__
);
223 env
= ppc405ep_init(sysmem
, ram_memories
, ram_bases
, ram_sizes
,
224 33333333, &pic
, kernel_filename
== NULL
? 0 : 1);
226 sram_size
= 512 * 1024;
227 memory_region_init_ram(sram
, NULL
, "ef405ep.sram", sram_size
,
229 memory_region_add_subregion(sysmem
, 0xFFF00000, sram
);
230 /* allocate and load BIOS */
231 #ifdef DEBUG_BOARD_INIT
232 printf("%s: register BIOS\n", __func__
);
235 #ifdef USE_FLASH_BIOS
236 dinfo
= drive_get(IF_PFLASH
, 0, fl_idx
);
238 BlockBackend
*blk
= blk_by_legacy_dinfo(dinfo
);
240 bios_size
= blk_getlength(blk
);
241 fl_sectors
= (bios_size
+ 65535) >> 16;
242 #ifdef DEBUG_BOARD_INIT
243 printf("Register parallel flash %d size %lx"
244 " at addr %lx '%s' %d\n",
245 fl_idx
, bios_size
, -bios_size
,
246 blk_name(blk
), fl_sectors
);
248 pflash_cfi02_register((uint32_t)(-bios_size
),
249 NULL
, "ef405ep.bios", bios_size
,
250 blk
, 65536, fl_sectors
, 1,
251 2, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
257 #ifdef DEBUG_BOARD_INIT
258 printf("Load BIOS from file\n");
260 bios
= g_new(MemoryRegion
, 1);
261 memory_region_init_ram(bios
, NULL
, "ef405ep.bios", BIOS_SIZE
,
264 if (bios_name
== NULL
)
265 bios_name
= BIOS_FILENAME
;
266 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
268 bios_size
= load_image(filename
, memory_region_get_ram_ptr(bios
));
270 if (bios_size
< 0 || bios_size
> BIOS_SIZE
) {
271 error_report("Could not load PowerPC BIOS '%s'", bios_name
);
274 bios_size
= (bios_size
+ 0xfff) & ~0xfff;
275 memory_region_add_subregion(sysmem
, (uint32_t)(-bios_size
), bios
);
276 } else if (!qtest_enabled() || kernel_filename
!= NULL
) {
277 error_report("Could not load PowerPC BIOS '%s'", bios_name
);
280 /* Avoid an uninitialized variable warning */
283 memory_region_set_readonly(bios
, true);
286 #ifdef DEBUG_BOARD_INIT
287 printf("%s: register FPGA\n", __func__
);
289 ref405ep_fpga_init(sysmem
, 0xF0300000);
291 #ifdef DEBUG_BOARD_INIT
292 printf("%s: register NVRAM\n", __func__
);
294 m48t59_init(NULL
, 0xF0000000, 0, 8192, 1968, 8);
296 linux_boot
= (kernel_filename
!= NULL
);
298 #ifdef DEBUG_BOARD_INIT
299 printf("%s: load kernel\n", __func__
);
301 memset(&bd
, 0, sizeof(bd
));
302 bd
.bi_memstart
= 0x00000000;
303 bd
.bi_memsize
= ram_size
;
304 bd
.bi_flashstart
= -bios_size
;
305 bd
.bi_flashsize
= -bios_size
;
306 bd
.bi_flashoffset
= 0;
307 bd
.bi_sramstart
= 0xFFF00000;
308 bd
.bi_sramsize
= sram_size
;
310 bd
.bi_intfreq
= 133333333;
311 bd
.bi_busfreq
= 33333333;
312 bd
.bi_baudrate
= 115200;
313 bd
.bi_s_version
[0] = 'Q';
314 bd
.bi_s_version
[1] = 'M';
315 bd
.bi_s_version
[2] = 'U';
316 bd
.bi_s_version
[3] = '\0';
317 bd
.bi_r_version
[0] = 'Q';
318 bd
.bi_r_version
[1] = 'E';
319 bd
.bi_r_version
[2] = 'M';
320 bd
.bi_r_version
[3] = 'U';
321 bd
.bi_r_version
[4] = '\0';
322 bd
.bi_procfreq
= 133333333;
323 bd
.bi_plb_busfreq
= 33333333;
324 bd
.bi_pci_busfreq
= 33333333;
325 bd
.bi_opbfreq
= 33333333;
326 bdloc
= ppc405_set_bootinfo(env
, &bd
, 0x00000001);
328 kernel_base
= KERNEL_LOAD_ADDR
;
329 /* now we can load the kernel */
330 kernel_size
= load_image_targphys(kernel_filename
, kernel_base
,
331 ram_size
- kernel_base
);
332 if (kernel_size
< 0) {
333 error_report("could not load kernel '%s'", kernel_filename
);
336 printf("Load kernel size %ld at " TARGET_FMT_lx
,
337 kernel_size
, kernel_base
);
339 if (initrd_filename
) {
340 initrd_base
= INITRD_LOAD_ADDR
;
341 initrd_size
= load_image_targphys(initrd_filename
, initrd_base
,
342 ram_size
- initrd_base
);
343 if (initrd_size
< 0) {
344 error_report("could not load initial ram disk '%s'",
352 env
->gpr
[4] = initrd_base
;
353 env
->gpr
[5] = initrd_size
;
354 if (kernel_cmdline
!= NULL
) {
355 len
= strlen(kernel_cmdline
);
356 bdloc
-= ((len
+ 255) & ~255);
357 cpu_physical_memory_write(bdloc
, kernel_cmdline
, len
+ 1);
359 env
->gpr
[7] = bdloc
+ len
;
364 env
->nip
= KERNEL_LOAD_ADDR
;
372 #ifdef DEBUG_BOARD_INIT
373 printf("bdloc " RAM_ADDR_FMT
"\n", bdloc
);
374 printf("%s: Done\n", __func__
);
378 static void ref405ep_class_init(ObjectClass
*oc
, void *data
)
380 MachineClass
*mc
= MACHINE_CLASS(oc
);
382 mc
->desc
= "ref405ep";
383 mc
->init
= ref405ep_init
;
386 static const TypeInfo ref405ep_type
= {
387 .name
= MACHINE_TYPE_NAME("ref405ep"),
388 .parent
= TYPE_MACHINE
,
389 .class_init
= ref405ep_class_init
,
392 /*****************************************************************************/
393 /* AMCC Taihu evaluation board */
394 /* - PowerPC 405EP processor
395 * - SDRAM 128 MB at 0x00000000
396 * - Boot flash 2 MB at 0xFFE00000
397 * - Application flash 32 MB at 0xFC000000
400 * - 1 USB 1.1 device 0x50000000
401 * - 1 LCD display 0x50100000
402 * - 1 CPLD 0x50100000
404 * - 1 I2C thermal sensor
406 * - bit-bang SPI port using GPIOs
407 * - 1 EBC interface connector 0 0x50200000
408 * - 1 cardbus controller + expansion slot.
409 * - 1 PCI expansion slot.
411 typedef struct taihu_cpld_t taihu_cpld_t
;
412 struct taihu_cpld_t
{
417 static uint64_t taihu_cpld_read(void *opaque
, hwaddr addr
, unsigned size
)
438 static void taihu_cpld_write(void *opaque
, hwaddr addr
,
439 uint64_t value
, unsigned size
)
456 static const MemoryRegionOps taihu_cpld_ops
= {
457 .read
= taihu_cpld_read
,
458 .write
= taihu_cpld_write
,
460 .min_access_size
= 1,
461 .max_access_size
= 1,
463 .endianness
= DEVICE_NATIVE_ENDIAN
,
466 static void taihu_cpld_reset (void *opaque
)
475 static void taihu_cpld_init(MemoryRegion
*sysmem
, uint32_t base
)
478 MemoryRegion
*cpld_memory
= g_new(MemoryRegion
, 1);
480 cpld
= g_malloc0(sizeof(taihu_cpld_t
));
481 memory_region_init_io(cpld_memory
, NULL
, &taihu_cpld_ops
, cpld
, "cpld", 0x100);
482 memory_region_add_subregion(sysmem
, base
, cpld_memory
);
483 qemu_register_reset(&taihu_cpld_reset
, cpld
);
486 static void taihu_405ep_init(MachineState
*machine
)
488 ram_addr_t ram_size
= machine
->ram_size
;
489 const char *kernel_filename
= machine
->kernel_filename
;
490 const char *initrd_filename
= machine
->initrd_filename
;
493 MemoryRegion
*sysmem
= get_system_memory();
495 MemoryRegion
*ram_memories
= g_malloc(2 * sizeof(*ram_memories
));
496 MemoryRegion
*ram
= g_malloc0(sizeof(*ram
));
497 hwaddr ram_bases
[2], ram_sizes
[2];
499 target_ulong kernel_base
, initrd_base
;
500 long kernel_size
, initrd_size
;
502 int fl_idx
, fl_sectors
;
506 if (!qtest_enabled()) {
507 warn_report("qemu-system-ppcemb is deprecated, "
508 "please use qemu-system-ppc instead.");
512 /* RAM is soldered to the board so the size cannot be changed */
513 ram_size
= 0x08000000;
514 memory_region_allocate_system_memory(ram
, NULL
, "taihu_405ep.ram",
518 ram_sizes
[0] = 0x04000000;
519 memory_region_init_alias(&ram_memories
[0], NULL
,
520 "taihu_405ep.ram-0", ram
, ram_bases
[0],
522 ram_bases
[1] = 0x04000000;
523 ram_sizes
[1] = 0x04000000;
524 memory_region_init_alias(&ram_memories
[1], NULL
,
525 "taihu_405ep.ram-1", ram
, ram_bases
[1],
527 #ifdef DEBUG_BOARD_INIT
528 printf("%s: register cpu\n", __func__
);
530 ppc405ep_init(sysmem
, ram_memories
, ram_bases
, ram_sizes
,
531 33333333, &pic
, kernel_filename
== NULL
? 0 : 1);
532 /* allocate and load BIOS */
533 #ifdef DEBUG_BOARD_INIT
534 printf("%s: register BIOS\n", __func__
);
537 #if defined(USE_FLASH_BIOS)
538 dinfo
= drive_get(IF_PFLASH
, 0, fl_idx
);
540 BlockBackend
*blk
= blk_by_legacy_dinfo(dinfo
);
542 bios_size
= blk_getlength(blk
);
543 /* XXX: should check that size is 2MB */
544 // bios_size = 2 * 1024 * 1024;
545 fl_sectors
= (bios_size
+ 65535) >> 16;
546 #ifdef DEBUG_BOARD_INIT
547 printf("Register parallel flash %d size %lx"
548 " at addr %lx '%s' %d\n",
549 fl_idx
, bios_size
, -bios_size
,
550 blk_name(blk
), fl_sectors
);
552 pflash_cfi02_register((uint32_t)(-bios_size
),
553 NULL
, "taihu_405ep.bios", bios_size
,
554 blk
, 65536, fl_sectors
, 1,
555 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
561 #ifdef DEBUG_BOARD_INIT
562 printf("Load BIOS from file\n");
564 if (bios_name
== NULL
)
565 bios_name
= BIOS_FILENAME
;
566 bios
= g_new(MemoryRegion
, 1);
567 memory_region_init_ram(bios
, NULL
, "taihu_405ep.bios", BIOS_SIZE
,
569 filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
571 bios_size
= load_image(filename
, memory_region_get_ram_ptr(bios
));
573 if (bios_size
< 0 || bios_size
> BIOS_SIZE
) {
574 error_report("Could not load PowerPC BIOS '%s'", bios_name
);
577 bios_size
= (bios_size
+ 0xfff) & ~0xfff;
578 memory_region_add_subregion(sysmem
, (uint32_t)(-bios_size
), bios
);
579 } else if (!qtest_enabled()) {
580 error_report("Could not load PowerPC BIOS '%s'", bios_name
);
583 memory_region_set_readonly(bios
, true);
585 /* Register Linux flash */
586 dinfo
= drive_get(IF_PFLASH
, 0, fl_idx
);
588 BlockBackend
*blk
= blk_by_legacy_dinfo(dinfo
);
590 bios_size
= blk_getlength(blk
);
591 /* XXX: should check that size is 32MB */
592 bios_size
= 32 * 1024 * 1024;
593 fl_sectors
= (bios_size
+ 65535) >> 16;
594 #ifdef DEBUG_BOARD_INIT
595 printf("Register parallel flash %d size %lx"
596 " at addr " TARGET_FMT_lx
" '%s'\n",
597 fl_idx
, bios_size
, (target_ulong
)0xfc000000,
600 pflash_cfi02_register(0xfc000000, NULL
, "taihu_405ep.flash", bios_size
,
601 blk
, 65536, fl_sectors
, 1,
602 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
606 /* Register CLPD & LCD display */
607 #ifdef DEBUG_BOARD_INIT
608 printf("%s: register CPLD\n", __func__
);
610 taihu_cpld_init(sysmem
, 0x50100000);
612 linux_boot
= (kernel_filename
!= NULL
);
614 #ifdef DEBUG_BOARD_INIT
615 printf("%s: load kernel\n", __func__
);
617 kernel_base
= KERNEL_LOAD_ADDR
;
618 /* now we can load the kernel */
619 kernel_size
= load_image_targphys(kernel_filename
, kernel_base
,
620 ram_size
- kernel_base
);
621 if (kernel_size
< 0) {
622 error_report("could not load kernel '%s'", kernel_filename
);
626 if (initrd_filename
) {
627 initrd_base
= INITRD_LOAD_ADDR
;
628 initrd_size
= load_image_targphys(initrd_filename
, initrd_base
,
629 ram_size
- initrd_base
);
630 if (initrd_size
< 0) {
631 error_report("could not load initial ram disk '%s'",
645 #ifdef DEBUG_BOARD_INIT
646 printf("%s: Done\n", __func__
);
650 static void taihu_class_init(ObjectClass
*oc
, void *data
)
652 MachineClass
*mc
= MACHINE_CLASS(oc
);
655 mc
->init
= taihu_405ep_init
;
658 static const TypeInfo taihu_type
= {
659 .name
= MACHINE_TYPE_NAME("taihu"),
660 .parent
= TYPE_MACHINE
,
661 .class_init
= taihu_class_init
,
664 static void ppc405_machine_init(void)
666 type_register_static(&ref405ep_type
);
667 type_register_static(&taihu_type
);
670 type_init(ppc405_machine_init
)