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 "qemu/units.h"
26 #include "qapi/error.h"
27 #include "qemu-common.h"
30 #include "hw/ppc/ppc.h"
32 #include "hw/timer/m48t59.h"
33 #include "hw/block/flash.h"
34 #include "sysemu/sysemu.h"
35 #include "sysemu/qtest.h"
36 #include "sysemu/block-backend.h"
37 #include "hw/boards.h"
39 #include "qemu/error-report.h"
40 #include "hw/loader.h"
41 #include "exec/address-spaces.h"
43 #define BIOS_FILENAME "ppc405_rom.bin"
44 #define BIOS_SIZE (2 * MiB)
46 #define KERNEL_LOAD_ADDR 0x00000000
47 #define INITRD_LOAD_ADDR 0x01800000
49 #define USE_FLASH_BIOS
51 //#define DEBUG_BOARD_INIT
53 /*****************************************************************************/
54 /* PPC405EP reference board (IBM) */
55 /* Standalone board with:
57 * - SDRAM (0x00000000)
58 * - Flash (0xFFF80000)
60 * - NVRAM (0xF0000000)
63 typedef struct ref405ep_fpga_t ref405ep_fpga_t;
64 struct ref405ep_fpga_t {
69 static uint64_t ref405ep_fpga_readb(void *opaque, hwaddr addr, unsigned size)
71 ref405ep_fpga_t *fpga;
90 static void ref405ep_fpga_writeb(void *opaque, hwaddr addr, uint64_t value,
93 ref405ep_fpga_t *fpga;
108 static const MemoryRegionOps ref405ep_fpga_ops = {
109 .read = ref405ep_fpga_readb,
110 .write = ref405ep_fpga_writeb,
111 .impl.min_access_size = 1,
112 .impl.max_access_size = 1,
113 .valid.min_access_size = 1,
114 .valid.max_access_size = 4,
115 .endianness = DEVICE_BIG_ENDIAN,
118 static void ref405ep_fpga_reset (void *opaque)
120 ref405ep_fpga_t *fpga;
127 static void ref405ep_fpga_init(MemoryRegion *sysmem, uint32_t base)
129 ref405ep_fpga_t *fpga;
130 MemoryRegion *fpga_memory = g_new(MemoryRegion, 1);
132 fpga = g_malloc0(sizeof(ref405ep_fpga_t));
133 memory_region_init_io(fpga_memory, NULL, &ref405ep_fpga_ops, fpga,
135 memory_region_add_subregion(sysmem, base, fpga_memory);
136 qemu_register_reset(&ref405ep_fpga_reset, fpga);
139 static void ref405ep_init(MachineState *machine)
141 ram_addr_t ram_size = machine->ram_size;
142 const char *kernel_filename = machine->kernel_filename;
143 const char *kernel_cmdline = machine->kernel_cmdline;
144 const char *initrd_filename = machine->initrd_filename;
150 MemoryRegion *sram = g_new(MemoryRegion, 1);
152 MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories));
153 hwaddr ram_bases[2], ram_sizes[2];
154 target_ulong sram_size;
157 //static int phy_addr = 1;
158 target_ulong kernel_base, initrd_base;
159 long kernel_size, initrd_size;
161 int fl_idx, fl_sectors, len;
163 MemoryRegion *sysmem = get_system_memory();
166 memory_region_allocate_system_memory(&ram_memories[0], NULL, "ef405ep.ram",
169 ram_sizes[0] = 0x08000000;
170 memory_region_init(&ram_memories[1], NULL, "ef405ep.ram1", 0);
171 ram_bases[1] = 0x00000000;
172 ram_sizes[1] = 0x00000000;
173 ram_size = 128 * MiB;
174 #ifdef DEBUG_BOARD_INIT
175 printf("%s: register cpu\n", __func__);
177 env = ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes,
178 33333333, &pic, kernel_filename == NULL ? 0 : 1);
180 sram_size = 512 * KiB;
181 memory_region_init_ram(sram, NULL, "ef405ep.sram", sram_size,
183 memory_region_add_subregion(sysmem, 0xFFF00000, sram);
184 /* allocate and load BIOS */
185 #ifdef DEBUG_BOARD_INIT
186 printf("%s: register BIOS\n", __func__);
189 #ifdef USE_FLASH_BIOS
190 dinfo = drive_get(IF_PFLASH, 0, fl_idx);
192 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
194 bios_size = blk_getlength(blk);
195 fl_sectors = (bios_size + 65535) >> 16;
196 #ifdef DEBUG_BOARD_INIT
197 printf("Register parallel flash %d size %lx"
198 " at addr %lx '%s' %d\n",
199 fl_idx, bios_size, -bios_size,
200 blk_name(blk), fl_sectors);
202 pflash_cfi02_register((uint32_t)(-bios_size),
203 NULL, "ef405ep.bios", bios_size,
204 blk, 65536, fl_sectors, 1,
205 2, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
211 #ifdef DEBUG_BOARD_INIT
212 printf("Load BIOS from file\n");
214 bios = g_new(MemoryRegion, 1);
215 memory_region_init_ram(bios, NULL, "ef405ep.bios", BIOS_SIZE,
218 if (bios_name == NULL)
219 bios_name = BIOS_FILENAME;
220 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
222 bios_size = load_image(filename, memory_region_get_ram_ptr(bios));
224 if (bios_size < 0 || bios_size > BIOS_SIZE) {
225 error_report("Could not load PowerPC BIOS '%s'", bios_name);
228 bios_size = (bios_size + 0xfff) & ~0xfff;
229 memory_region_add_subregion(sysmem, (uint32_t)(-bios_size), bios);
230 } else if (!qtest_enabled() || kernel_filename != NULL) {
231 error_report("Could not load PowerPC BIOS '%s'", bios_name);
234 /* Avoid an uninitialized variable warning */
237 memory_region_set_readonly(bios, true);
240 #ifdef DEBUG_BOARD_INIT
241 printf("%s: register FPGA\n", __func__);
243 ref405ep_fpga_init(sysmem, 0xF0300000);
245 #ifdef DEBUG_BOARD_INIT
246 printf("%s: register NVRAM\n", __func__);
248 m48t59_init(NULL, 0xF0000000, 0, 8192, 1968, 8);
250 linux_boot = (kernel_filename != NULL);
252 #ifdef DEBUG_BOARD_INIT
253 printf("%s: load kernel\n", __func__);
255 memset(&bd, 0, sizeof(bd));
256 bd.bi_memstart = 0x00000000;
257 bd.bi_memsize = ram_size;
258 bd.bi_flashstart = -bios_size;
259 bd.bi_flashsize = -bios_size;
260 bd.bi_flashoffset = 0;
261 bd.bi_sramstart = 0xFFF00000;
262 bd.bi_sramsize = sram_size;
264 bd.bi_intfreq = 133333333;
265 bd.bi_busfreq = 33333333;
266 bd.bi_baudrate = 115200;
267 bd.bi_s_version[0] = 'Q';
268 bd.bi_s_version[1] = 'M';
269 bd.bi_s_version[2] = 'U';
270 bd.bi_s_version[3] = '\0';
271 bd.bi_r_version[0] = 'Q';
272 bd.bi_r_version[1] = 'E';
273 bd.bi_r_version[2] = 'M';
274 bd.bi_r_version[3] = 'U';
275 bd.bi_r_version[4] = '\0';
276 bd.bi_procfreq = 133333333;
277 bd.bi_plb_busfreq = 33333333;
278 bd.bi_pci_busfreq = 33333333;
279 bd.bi_opbfreq = 33333333;
280 bdloc = ppc405_set_bootinfo(env, &bd, 0x00000001);
282 kernel_base = KERNEL_LOAD_ADDR;
283 /* now we can load the kernel */
284 kernel_size = load_image_targphys(kernel_filename, kernel_base,
285 ram_size - kernel_base);
286 if (kernel_size < 0) {
287 error_report("could not load kernel '%s'", kernel_filename);
290 printf("Load kernel size %ld at " TARGET_FMT_lx,
291 kernel_size, kernel_base);
293 if (initrd_filename) {
294 initrd_base = INITRD_LOAD_ADDR;
295 initrd_size = load_image_targphys(initrd_filename, initrd_base,
296 ram_size - initrd_base);
297 if (initrd_size < 0) {
298 error_report("could not load initial ram disk '%s'",
306 env->gpr[4] = initrd_base;
307 env->gpr[5] = initrd_size;
308 if (kernel_cmdline != NULL) {
309 len = strlen(kernel_cmdline);
310 bdloc -= ((len + 255) & ~255);
311 cpu_physical_memory_write(bdloc, kernel_cmdline, len + 1);
313 env->gpr[7] = bdloc + len;
318 env->nip = KERNEL_LOAD_ADDR;
326 #ifdef DEBUG_BOARD_INIT
327 printf("bdloc " RAM_ADDR_FMT "\n", bdloc);
328 printf("%s: Done\n", __func__);
332 static void ref405ep_class_init(ObjectClass *oc, void *data)
334 MachineClass *mc = MACHINE_CLASS(oc);
336 mc->desc = "ref405ep";
337 mc->init = ref405ep_init;
340 static const TypeInfo ref405ep_type = {
341 .name = MACHINE_TYPE_NAME("ref405ep"),
342 .parent = TYPE_MACHINE,
343 .class_init = ref405ep_class_init,
346 /*****************************************************************************/
347 /* AMCC Taihu evaluation board */
348 /* - PowerPC 405EP processor
349 * - SDRAM 128 MB at 0x00000000
350 * - Boot flash 2 MB at 0xFFE00000
351 * - Application flash 32 MB at 0xFC000000
354 * - 1 USB 1.1 device 0x50000000
355 * - 1 LCD display 0x50100000
356 * - 1 CPLD 0x50100000
358 * - 1 I2C thermal sensor
360 * - bit-bang SPI port using GPIOs
361 * - 1 EBC interface connector 0 0x50200000
362 * - 1 cardbus controller + expansion slot.
363 * - 1 PCI expansion slot.
365 typedef struct taihu_cpld_t taihu_cpld_t;
366 struct taihu_cpld_t {
371 static uint64_t taihu_cpld_read(void *opaque, hwaddr addr, unsigned size)
392 static void taihu_cpld_write(void *opaque, hwaddr addr,
393 uint64_t value, unsigned size)
410 static const MemoryRegionOps taihu_cpld_ops = {
411 .read = taihu_cpld_read,
412 .write = taihu_cpld_write,
414 .min_access_size = 1,
415 .max_access_size = 1,
417 .endianness = DEVICE_NATIVE_ENDIAN,
420 static void taihu_cpld_reset (void *opaque)
429 static void taihu_cpld_init(MemoryRegion *sysmem, uint32_t base)
432 MemoryRegion *cpld_memory = g_new(MemoryRegion, 1);
434 cpld = g_malloc0(sizeof(taihu_cpld_t));
435 memory_region_init_io(cpld_memory, NULL, &taihu_cpld_ops, cpld, "cpld", 0x100);
436 memory_region_add_subregion(sysmem, base, cpld_memory);
437 qemu_register_reset(&taihu_cpld_reset, cpld);
440 static void taihu_405ep_init(MachineState *machine)
442 ram_addr_t ram_size = machine->ram_size;
443 const char *kernel_filename = machine->kernel_filename;
444 const char *initrd_filename = machine->initrd_filename;
447 MemoryRegion *sysmem = get_system_memory();
449 MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories));
450 MemoryRegion *ram = g_malloc0(sizeof(*ram));
451 hwaddr ram_bases[2], ram_sizes[2];
453 target_ulong kernel_base, initrd_base;
454 long kernel_size, initrd_size;
456 int fl_idx, fl_sectors;
459 /* RAM is soldered to the board so the size cannot be changed */
460 ram_size = 0x08000000;
461 memory_region_allocate_system_memory(ram, NULL, "taihu_405ep.ram",
465 ram_sizes[0] = 0x04000000;
466 memory_region_init_alias(&ram_memories[0], NULL,
467 "taihu_405ep.ram-0", ram, ram_bases[0],
469 ram_bases[1] = 0x04000000;
470 ram_sizes[1] = 0x04000000;
471 memory_region_init_alias(&ram_memories[1], NULL,
472 "taihu_405ep.ram-1", ram, ram_bases[1],
474 #ifdef DEBUG_BOARD_INIT
475 printf("%s: register cpu\n", __func__);
477 ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes,
478 33333333, &pic, kernel_filename == NULL ? 0 : 1);
479 /* allocate and load BIOS */
480 #ifdef DEBUG_BOARD_INIT
481 printf("%s: register BIOS\n", __func__);
484 #if defined(USE_FLASH_BIOS)
485 dinfo = drive_get(IF_PFLASH, 0, fl_idx);
487 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
489 bios_size = blk_getlength(blk);
490 /* XXX: should check that size is 2MB */
491 // bios_size = 2 * 1024 * 1024;
492 fl_sectors = (bios_size + 65535) >> 16;
493 #ifdef DEBUG_BOARD_INIT
494 printf("Register parallel flash %d size %lx"
495 " at addr %lx '%s' %d\n",
496 fl_idx, bios_size, -bios_size,
497 blk_name(blk), fl_sectors);
499 pflash_cfi02_register((uint32_t)(-bios_size),
500 NULL, "taihu_405ep.bios", bios_size,
501 blk, 65536, fl_sectors, 1,
502 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
508 #ifdef DEBUG_BOARD_INIT
509 printf("Load BIOS from file\n");
511 if (bios_name == NULL)
512 bios_name = BIOS_FILENAME;
513 bios = g_new(MemoryRegion, 1);
514 memory_region_init_ram(bios, NULL, "taihu_405ep.bios", BIOS_SIZE,
516 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
518 bios_size = load_image(filename, memory_region_get_ram_ptr(bios));
520 if (bios_size < 0 || bios_size > BIOS_SIZE) {
521 error_report("Could not load PowerPC BIOS '%s'", bios_name);
524 bios_size = (bios_size + 0xfff) & ~0xfff;
525 memory_region_add_subregion(sysmem, (uint32_t)(-bios_size), bios);
526 } else if (!qtest_enabled()) {
527 error_report("Could not load PowerPC BIOS '%s'", bios_name);
530 memory_region_set_readonly(bios, true);
532 /* Register Linux flash */
533 dinfo = drive_get(IF_PFLASH, 0, fl_idx);
535 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
537 bios_size = blk_getlength(blk);
538 /* XXX: should check that size is 32MB */
539 bios_size = 32 * MiB;
540 fl_sectors = (bios_size + 65535) >> 16;
541 #ifdef DEBUG_BOARD_INIT
542 printf("Register parallel flash %d size %lx"
543 " at addr " TARGET_FMT_lx " '%s'\n",
544 fl_idx, bios_size, (target_ulong)0xfc000000,
547 pflash_cfi02_register(0xfc000000, NULL, "taihu_405ep.flash", bios_size,
548 blk, 65536, fl_sectors, 1,
549 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
553 /* Register CLPD & LCD display */
554 #ifdef DEBUG_BOARD_INIT
555 printf("%s: register CPLD\n", __func__);
557 taihu_cpld_init(sysmem, 0x50100000);
559 linux_boot = (kernel_filename != NULL);
561 #ifdef DEBUG_BOARD_INIT
562 printf("%s: load kernel\n", __func__);
564 kernel_base = KERNEL_LOAD_ADDR;
565 /* now we can load the kernel */
566 kernel_size = load_image_targphys(kernel_filename, kernel_base,
567 ram_size - kernel_base);
568 if (kernel_size < 0) {
569 error_report("could not load kernel '%s'", kernel_filename);
573 if (initrd_filename) {
574 initrd_base = INITRD_LOAD_ADDR;
575 initrd_size = load_image_targphys(initrd_filename, initrd_base,
576 ram_size - initrd_base);
577 if (initrd_size < 0) {
578 error_report("could not load initial ram disk '%s'",
592 #ifdef DEBUG_BOARD_INIT
593 printf("%s: Done\n", __func__);
597 static void taihu_class_init(ObjectClass *oc, void *data)
599 MachineClass *mc = MACHINE_CLASS(oc);
602 mc->init = taihu_405ep_init;
605 static const TypeInfo taihu_type = {
606 .name = MACHINE_TYPE_NAME("taihu"),
607 .parent = TYPE_MACHINE,
608 .class_init = taihu_class_init,
611 static void ppc405_machine_init(void)
613 type_register_static(&ref405ep_type);
614 type_register_static(&taihu_type);
617 type_init(ppc405_machine_init)