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
25 #include "hw/ppc/ppc.h"
27 #include "hw/timer/m48t59.h"
28 #include "hw/block/flash.h"
29 #include "sysemu/sysemu.h"
30 #include "sysemu/qtest.h"
31 #include "sysemu/block-backend.h"
32 #include "hw/boards.h"
34 #include "qemu/error-report.h"
35 #include "hw/loader.h"
36 #include "sysemu/block-backend.h"
37 #include "sysemu/blockdev.h"
38 #include "exec/address-spaces.h"
40 #define BIOS_FILENAME "ppc405_rom.bin"
41 #define BIOS_SIZE (2048 * 1024)
43 #define KERNEL_LOAD_ADDR 0x00000000
44 #define INITRD_LOAD_ADDR 0x01800000
46 #define USE_FLASH_BIOS
48 //#define DEBUG_BOARD_INIT
50 /*****************************************************************************/
51 /* PPC405EP reference board (IBM) */
52 /* Standalone board with:
54 * - SDRAM (0x00000000)
55 * - Flash (0xFFF80000)
57 * - NVRAM (0xF0000000)
60 typedef struct ref405ep_fpga_t ref405ep_fpga_t;
61 struct ref405ep_fpga_t {
66 static uint32_t ref405ep_fpga_readb (void *opaque, hwaddr addr)
68 ref405ep_fpga_t *fpga;
87 static void ref405ep_fpga_writeb (void *opaque,
88 hwaddr addr, uint32_t value)
90 ref405ep_fpga_t *fpga;
105 static uint32_t ref405ep_fpga_readw (void *opaque, hwaddr addr)
109 ret = ref405ep_fpga_readb(opaque, addr) << 8;
110 ret |= ref405ep_fpga_readb(opaque, addr + 1);
115 static void ref405ep_fpga_writew (void *opaque,
116 hwaddr addr, uint32_t value)
118 ref405ep_fpga_writeb(opaque, addr, (value >> 8) & 0xFF);
119 ref405ep_fpga_writeb(opaque, addr + 1, value & 0xFF);
122 static uint32_t ref405ep_fpga_readl (void *opaque, hwaddr addr)
126 ret = ref405ep_fpga_readb(opaque, addr) << 24;
127 ret |= ref405ep_fpga_readb(opaque, addr + 1) << 16;
128 ret |= ref405ep_fpga_readb(opaque, addr + 2) << 8;
129 ret |= ref405ep_fpga_readb(opaque, addr + 3);
134 static void ref405ep_fpga_writel (void *opaque,
135 hwaddr addr, uint32_t value)
137 ref405ep_fpga_writeb(opaque, addr, (value >> 24) & 0xFF);
138 ref405ep_fpga_writeb(opaque, addr + 1, (value >> 16) & 0xFF);
139 ref405ep_fpga_writeb(opaque, addr + 2, (value >> 8) & 0xFF);
140 ref405ep_fpga_writeb(opaque, addr + 3, value & 0xFF);
143 static const MemoryRegionOps ref405ep_fpga_ops = {
146 ref405ep_fpga_readb, ref405ep_fpga_readw, ref405ep_fpga_readl,
149 ref405ep_fpga_writeb, ref405ep_fpga_writew, ref405ep_fpga_writel,
152 .endianness = DEVICE_NATIVE_ENDIAN,
155 static void ref405ep_fpga_reset (void *opaque)
157 ref405ep_fpga_t *fpga;
164 static void ref405ep_fpga_init(MemoryRegion *sysmem, uint32_t base)
166 ref405ep_fpga_t *fpga;
167 MemoryRegion *fpga_memory = g_new(MemoryRegion, 1);
169 fpga = g_malloc0(sizeof(ref405ep_fpga_t));
170 memory_region_init_io(fpga_memory, NULL, &ref405ep_fpga_ops, fpga,
172 memory_region_add_subregion(sysmem, base, fpga_memory);
173 qemu_register_reset(&ref405ep_fpga_reset, fpga);
176 static void ref405ep_init(MachineState *machine)
178 ram_addr_t ram_size = machine->ram_size;
179 const char *kernel_filename = machine->kernel_filename;
180 const char *kernel_cmdline = machine->kernel_cmdline;
181 const char *initrd_filename = machine->initrd_filename;
187 MemoryRegion *sram = g_new(MemoryRegion, 1);
189 MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories));
190 hwaddr ram_bases[2], ram_sizes[2];
191 target_ulong sram_size;
194 //static int phy_addr = 1;
195 target_ulong kernel_base, initrd_base;
196 long kernel_size, initrd_size;
198 int fl_idx, fl_sectors, len;
200 MemoryRegion *sysmem = get_system_memory();
203 memory_region_allocate_system_memory(&ram_memories[0], NULL, "ef405ep.ram",
206 ram_sizes[0] = 0x08000000;
207 memory_region_init(&ram_memories[1], NULL, "ef405ep.ram1", 0);
208 ram_bases[1] = 0x00000000;
209 ram_sizes[1] = 0x00000000;
210 ram_size = 128 * 1024 * 1024;
211 #ifdef DEBUG_BOARD_INIT
212 printf("%s: register cpu\n", __func__);
214 env = ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes,
215 33333333, &pic, kernel_filename == NULL ? 0 : 1);
217 sram_size = 512 * 1024;
218 memory_region_init_ram(sram, NULL, "ef405ep.sram", sram_size,
220 vmstate_register_ram_global(sram);
221 memory_region_add_subregion(sysmem, 0xFFF00000, sram);
222 /* allocate and load BIOS */
223 #ifdef DEBUG_BOARD_INIT
224 printf("%s: register BIOS\n", __func__);
227 #ifdef USE_FLASH_BIOS
228 dinfo = drive_get(IF_PFLASH, 0, fl_idx);
230 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
232 bios_size = blk_getlength(blk);
233 fl_sectors = (bios_size + 65535) >> 16;
234 #ifdef DEBUG_BOARD_INIT
235 printf("Register parallel flash %d size %lx"
236 " at addr %lx '%s' %d\n",
237 fl_idx, bios_size, -bios_size,
238 blk_name(blk), fl_sectors);
240 pflash_cfi02_register((uint32_t)(-bios_size),
241 NULL, "ef405ep.bios", bios_size,
242 blk, 65536, fl_sectors, 1,
243 2, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
249 #ifdef DEBUG_BOARD_INIT
250 printf("Load BIOS from file\n");
252 bios = g_new(MemoryRegion, 1);
253 memory_region_init_ram(bios, NULL, "ef405ep.bios", BIOS_SIZE,
255 vmstate_register_ram_global(bios);
257 if (bios_name == NULL)
258 bios_name = BIOS_FILENAME;
259 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
261 bios_size = load_image(filename, memory_region_get_ram_ptr(bios));
263 if (bios_size < 0 || bios_size > BIOS_SIZE) {
264 error_report("Could not load PowerPC BIOS '%s'", bios_name);
267 bios_size = (bios_size + 0xfff) & ~0xfff;
268 memory_region_add_subregion(sysmem, (uint32_t)(-bios_size), bios);
269 } else if (!qtest_enabled() || kernel_filename != NULL) {
270 error_report("Could not load PowerPC BIOS '%s'", bios_name);
273 /* Avoid an uninitialized variable warning */
276 memory_region_set_readonly(bios, true);
279 #ifdef DEBUG_BOARD_INIT
280 printf("%s: register FPGA\n", __func__);
282 ref405ep_fpga_init(sysmem, 0xF0300000);
284 #ifdef DEBUG_BOARD_INIT
285 printf("%s: register NVRAM\n", __func__);
287 m48t59_init(NULL, 0xF0000000, 0, 8192, 1968, 8);
289 linux_boot = (kernel_filename != NULL);
291 #ifdef DEBUG_BOARD_INIT
292 printf("%s: load kernel\n", __func__);
294 memset(&bd, 0, sizeof(bd));
295 bd.bi_memstart = 0x00000000;
296 bd.bi_memsize = ram_size;
297 bd.bi_flashstart = -bios_size;
298 bd.bi_flashsize = -bios_size;
299 bd.bi_flashoffset = 0;
300 bd.bi_sramstart = 0xFFF00000;
301 bd.bi_sramsize = sram_size;
303 bd.bi_intfreq = 133333333;
304 bd.bi_busfreq = 33333333;
305 bd.bi_baudrate = 115200;
306 bd.bi_s_version[0] = 'Q';
307 bd.bi_s_version[1] = 'M';
308 bd.bi_s_version[2] = 'U';
309 bd.bi_s_version[3] = '\0';
310 bd.bi_r_version[0] = 'Q';
311 bd.bi_r_version[1] = 'E';
312 bd.bi_r_version[2] = 'M';
313 bd.bi_r_version[3] = 'U';
314 bd.bi_r_version[4] = '\0';
315 bd.bi_procfreq = 133333333;
316 bd.bi_plb_busfreq = 33333333;
317 bd.bi_pci_busfreq = 33333333;
318 bd.bi_opbfreq = 33333333;
319 bdloc = ppc405_set_bootinfo(env, &bd, 0x00000001);
321 kernel_base = KERNEL_LOAD_ADDR;
322 /* now we can load the kernel */
323 kernel_size = load_image_targphys(kernel_filename, kernel_base,
324 ram_size - kernel_base);
325 if (kernel_size < 0) {
326 fprintf(stderr, "qemu: could not load kernel '%s'\n",
330 printf("Load kernel size %ld at " TARGET_FMT_lx,
331 kernel_size, kernel_base);
333 if (initrd_filename) {
334 initrd_base = INITRD_LOAD_ADDR;
335 initrd_size = load_image_targphys(initrd_filename, initrd_base,
336 ram_size - initrd_base);
337 if (initrd_size < 0) {
338 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
346 env->gpr[4] = initrd_base;
347 env->gpr[5] = initrd_size;
348 if (kernel_cmdline != NULL) {
349 len = strlen(kernel_cmdline);
350 bdloc -= ((len + 255) & ~255);
351 cpu_physical_memory_write(bdloc, kernel_cmdline, len + 1);
353 env->gpr[7] = bdloc + len;
358 env->nip = KERNEL_LOAD_ADDR;
366 #ifdef DEBUG_BOARD_INIT
367 printf("bdloc " RAM_ADDR_FMT "\n", bdloc);
368 printf("%s: Done\n", __func__);
372 static void ref405ep_class_init(ObjectClass *oc, void *data)
374 MachineClass *mc = MACHINE_CLASS(oc);
376 mc->desc = "ref405ep";
377 mc->init = ref405ep_init;
380 static const TypeInfo ref405ep_type = {
381 .name = MACHINE_TYPE_NAME("ref405ep"),
382 .parent = TYPE_MACHINE,
383 .class_init = ref405ep_class_init,
386 /*****************************************************************************/
387 /* AMCC Taihu evaluation board */
388 /* - PowerPC 405EP processor
389 * - SDRAM 128 MB at 0x00000000
390 * - Boot flash 2 MB at 0xFFE00000
391 * - Application flash 32 MB at 0xFC000000
394 * - 1 USB 1.1 device 0x50000000
395 * - 1 LCD display 0x50100000
396 * - 1 CPLD 0x50100000
398 * - 1 I2C thermal sensor
400 * - bit-bang SPI port using GPIOs
401 * - 1 EBC interface connector 0 0x50200000
402 * - 1 cardbus controller + expansion slot.
403 * - 1 PCI expansion slot.
405 typedef struct taihu_cpld_t taihu_cpld_t;
406 struct taihu_cpld_t {
411 static uint32_t taihu_cpld_readb (void *opaque, hwaddr addr)
432 static void taihu_cpld_writeb (void *opaque,
433 hwaddr addr, uint32_t value)
450 static uint32_t taihu_cpld_readw (void *opaque, hwaddr addr)
454 ret = taihu_cpld_readb(opaque, addr) << 8;
455 ret |= taihu_cpld_readb(opaque, addr + 1);
460 static void taihu_cpld_writew (void *opaque,
461 hwaddr addr, uint32_t value)
463 taihu_cpld_writeb(opaque, addr, (value >> 8) & 0xFF);
464 taihu_cpld_writeb(opaque, addr + 1, value & 0xFF);
467 static uint32_t taihu_cpld_readl (void *opaque, hwaddr addr)
471 ret = taihu_cpld_readb(opaque, addr) << 24;
472 ret |= taihu_cpld_readb(opaque, addr + 1) << 16;
473 ret |= taihu_cpld_readb(opaque, addr + 2) << 8;
474 ret |= taihu_cpld_readb(opaque, addr + 3);
479 static void taihu_cpld_writel (void *opaque,
480 hwaddr addr, uint32_t value)
482 taihu_cpld_writel(opaque, addr, (value >> 24) & 0xFF);
483 taihu_cpld_writel(opaque, addr + 1, (value >> 16) & 0xFF);
484 taihu_cpld_writel(opaque, addr + 2, (value >> 8) & 0xFF);
485 taihu_cpld_writeb(opaque, addr + 3, value & 0xFF);
488 static const MemoryRegionOps taihu_cpld_ops = {
490 .read = { taihu_cpld_readb, taihu_cpld_readw, taihu_cpld_readl, },
491 .write = { taihu_cpld_writeb, taihu_cpld_writew, taihu_cpld_writel, },
493 .endianness = DEVICE_NATIVE_ENDIAN,
496 static void taihu_cpld_reset (void *opaque)
505 static void taihu_cpld_init(MemoryRegion *sysmem, uint32_t base)
508 MemoryRegion *cpld_memory = g_new(MemoryRegion, 1);
510 cpld = g_malloc0(sizeof(taihu_cpld_t));
511 memory_region_init_io(cpld_memory, NULL, &taihu_cpld_ops, cpld, "cpld", 0x100);
512 memory_region_add_subregion(sysmem, base, cpld_memory);
513 qemu_register_reset(&taihu_cpld_reset, cpld);
516 static void taihu_405ep_init(MachineState *machine)
518 ram_addr_t ram_size = machine->ram_size;
519 const char *kernel_filename = machine->kernel_filename;
520 const char *initrd_filename = machine->initrd_filename;
523 MemoryRegion *sysmem = get_system_memory();
525 MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories));
526 MemoryRegion *ram = g_malloc0(sizeof(*ram));
527 hwaddr ram_bases[2], ram_sizes[2];
529 target_ulong kernel_base, initrd_base;
530 long kernel_size, initrd_size;
532 int fl_idx, fl_sectors;
535 /* RAM is soldered to the board so the size cannot be changed */
536 ram_size = 0x08000000;
537 memory_region_allocate_system_memory(ram, NULL, "taihu_405ep.ram",
541 ram_sizes[0] = 0x04000000;
542 memory_region_init_alias(&ram_memories[0], NULL,
543 "taihu_405ep.ram-0", ram, ram_bases[0],
545 ram_bases[1] = 0x04000000;
546 ram_sizes[1] = 0x04000000;
547 memory_region_init_alias(&ram_memories[1], NULL,
548 "taihu_405ep.ram-1", ram, ram_bases[1],
550 #ifdef DEBUG_BOARD_INIT
551 printf("%s: register cpu\n", __func__);
553 ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes,
554 33333333, &pic, kernel_filename == NULL ? 0 : 1);
555 /* allocate and load BIOS */
556 #ifdef DEBUG_BOARD_INIT
557 printf("%s: register BIOS\n", __func__);
560 #if defined(USE_FLASH_BIOS)
561 dinfo = drive_get(IF_PFLASH, 0, fl_idx);
563 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
565 bios_size = blk_getlength(blk);
566 /* XXX: should check that size is 2MB */
567 // bios_size = 2 * 1024 * 1024;
568 fl_sectors = (bios_size + 65535) >> 16;
569 #ifdef DEBUG_BOARD_INIT
570 printf("Register parallel flash %d size %lx"
571 " at addr %lx '%s' %d\n",
572 fl_idx, bios_size, -bios_size,
573 blk_name(blk), fl_sectors);
575 pflash_cfi02_register((uint32_t)(-bios_size),
576 NULL, "taihu_405ep.bios", bios_size,
577 blk, 65536, fl_sectors, 1,
578 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
584 #ifdef DEBUG_BOARD_INIT
585 printf("Load BIOS from file\n");
587 if (bios_name == NULL)
588 bios_name = BIOS_FILENAME;
589 bios = g_new(MemoryRegion, 1);
590 memory_region_init_ram(bios, NULL, "taihu_405ep.bios", BIOS_SIZE,
592 vmstate_register_ram_global(bios);
593 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
595 bios_size = load_image(filename, memory_region_get_ram_ptr(bios));
597 if (bios_size < 0 || bios_size > BIOS_SIZE) {
598 error_report("Could not load PowerPC BIOS '%s'", bios_name);
601 bios_size = (bios_size + 0xfff) & ~0xfff;
602 memory_region_add_subregion(sysmem, (uint32_t)(-bios_size), bios);
603 } else if (!qtest_enabled()) {
604 error_report("Could not load PowerPC BIOS '%s'", bios_name);
607 memory_region_set_readonly(bios, true);
609 /* Register Linux flash */
610 dinfo = drive_get(IF_PFLASH, 0, fl_idx);
612 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
614 bios_size = blk_getlength(blk);
615 /* XXX: should check that size is 32MB */
616 bios_size = 32 * 1024 * 1024;
617 fl_sectors = (bios_size + 65535) >> 16;
618 #ifdef DEBUG_BOARD_INIT
619 printf("Register parallel flash %d size %lx"
620 " at addr " TARGET_FMT_lx " '%s'\n",
621 fl_idx, bios_size, (target_ulong)0xfc000000,
624 pflash_cfi02_register(0xfc000000, NULL, "taihu_405ep.flash", bios_size,
625 blk, 65536, fl_sectors, 1,
626 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
630 /* Register CLPD & LCD display */
631 #ifdef DEBUG_BOARD_INIT
632 printf("%s: register CPLD\n", __func__);
634 taihu_cpld_init(sysmem, 0x50100000);
636 linux_boot = (kernel_filename != NULL);
638 #ifdef DEBUG_BOARD_INIT
639 printf("%s: load kernel\n", __func__);
641 kernel_base = KERNEL_LOAD_ADDR;
642 /* now we can load the kernel */
643 kernel_size = load_image_targphys(kernel_filename, kernel_base,
644 ram_size - kernel_base);
645 if (kernel_size < 0) {
646 fprintf(stderr, "qemu: could not load kernel '%s'\n",
651 if (initrd_filename) {
652 initrd_base = INITRD_LOAD_ADDR;
653 initrd_size = load_image_targphys(initrd_filename, initrd_base,
654 ram_size - initrd_base);
655 if (initrd_size < 0) {
657 "qemu: could not load initial ram disk '%s'\n",
671 #ifdef DEBUG_BOARD_INIT
672 printf("%s: Done\n", __func__);
676 static void taihu_class_init(ObjectClass *oc, void *data)
678 MachineClass *mc = MACHINE_CLASS(oc);
681 mc->init = taihu_405ep_init;
684 static const TypeInfo taihu_type = {
685 .name = MACHINE_TYPE_NAME("taihu"),
686 .parent = TYPE_MACHINE,
687 .class_init = taihu_class_init,
690 static void ppc405_machine_init(void)
692 type_register_static(&ref405ep_type);
693 type_register_static(&taihu_type);
696 machine_init(ppc405_machine_init)