sun4u: expose fw_cfg and NVRAM on ebus PCI IO address space
[qemu/ar7.git] / hw / sparc64 / sun4u.c
blob8d1e08923a7d1c306688d8ade5b89507602e8693
1 /*
2 * QEMU Sun4u/Sun4v System Emulator
4 * Copyright (c) 2005 Fabrice Bellard
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
22 * THE SOFTWARE.
24 #include "qemu/osdep.h"
25 #include "qapi/error.h"
26 #include "qemu-common.h"
27 #include "cpu.h"
28 #include "hw/hw.h"
29 #include "hw/pci/pci.h"
30 #include "hw/pci-host/apb.h"
31 #include "hw/i386/pc.h"
32 #include "hw/char/serial.h"
33 #include "hw/timer/m48t59.h"
34 #include "hw/block/fdc.h"
35 #include "net/net.h"
36 #include "qemu/timer.h"
37 #include "sysemu/sysemu.h"
38 #include "hw/boards.h"
39 #include "hw/nvram/sun_nvram.h"
40 #include "hw/nvram/chrp_nvram.h"
41 #include "hw/sparc/sparc64.h"
42 #include "hw/nvram/fw_cfg.h"
43 #include "hw/sysbus.h"
44 #include "hw/ide.h"
45 #include "hw/loader.h"
46 #include "elf.h"
47 #include "qemu/cutils.h"
49 //#define DEBUG_EBUS
51 #ifdef DEBUG_EBUS
52 #define EBUS_DPRINTF(fmt, ...) \
53 do { printf("EBUS: " fmt , ## __VA_ARGS__); } while (0)
54 #else
55 #define EBUS_DPRINTF(fmt, ...)
56 #endif
58 #define KERNEL_LOAD_ADDR 0x00404000
59 #define CMDLINE_ADDR 0x003ff000
60 #define PROM_SIZE_MAX (4 * 1024 * 1024)
61 #define PROM_VADDR 0x000ffd00000ULL
62 #define APB_SPECIAL_BASE 0x1fe00000000ULL
63 #define APB_MEM_BASE 0x1ff00000000ULL
64 #define APB_PCI_IO_BASE (APB_SPECIAL_BASE + 0x02000000ULL)
65 #define PROM_FILENAME "openbios-sparc64"
66 #define NVRAM_SIZE 0x2000
67 #define MAX_IDE_BUS 2
68 #define BIOS_CFG_IOPORT 0x510
69 #define FW_CFG_SPARC64_WIDTH (FW_CFG_ARCH_LOCAL + 0x00)
70 #define FW_CFG_SPARC64_HEIGHT (FW_CFG_ARCH_LOCAL + 0x01)
71 #define FW_CFG_SPARC64_DEPTH (FW_CFG_ARCH_LOCAL + 0x02)
73 #define IVEC_MAX 0x40
75 struct hwdef {
76 const char * const default_cpu_model;
77 uint16_t machine_id;
78 uint64_t prom_addr;
79 uint64_t console_serial_base;
82 typedef struct EbusState {
83 PCIDevice pci_dev;
84 MemoryRegion bar0;
85 MemoryRegion bar1;
86 } EbusState;
88 void DMA_init(ISABus *bus, int high_page_enable)
92 static void fw_cfg_boot_set(void *opaque, const char *boot_device,
93 Error **errp)
95 fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
98 static int sun4u_NVRAM_set_params(Nvram *nvram, uint16_t NVRAM_size,
99 const char *arch, ram_addr_t RAM_size,
100 const char *boot_devices,
101 uint32_t kernel_image, uint32_t kernel_size,
102 const char *cmdline,
103 uint32_t initrd_image, uint32_t initrd_size,
104 uint32_t NVRAM_image,
105 int width, int height, int depth,
106 const uint8_t *macaddr)
108 unsigned int i;
109 int sysp_end;
110 uint8_t image[0x1ff0];
111 NvramClass *k = NVRAM_GET_CLASS(nvram);
113 memset(image, '\0', sizeof(image));
115 /* OpenBIOS nvram variables partition */
116 sysp_end = chrp_nvram_create_system_partition(image, 0);
118 /* Free space partition */
119 chrp_nvram_create_free_partition(&image[sysp_end], 0x1fd0 - sysp_end);
121 Sun_init_header((struct Sun_nvram *)&image[0x1fd8], macaddr, 0x80);
123 for (i = 0; i < sizeof(image); i++) {
124 (k->write)(nvram, i, image[i]);
127 return 0;
130 static uint64_t sun4u_load_kernel(const char *kernel_filename,
131 const char *initrd_filename,
132 ram_addr_t RAM_size, uint64_t *initrd_size,
133 uint64_t *initrd_addr, uint64_t *kernel_addr,
134 uint64_t *kernel_entry)
136 int linux_boot;
137 unsigned int i;
138 long kernel_size;
139 uint8_t *ptr;
140 uint64_t kernel_top;
142 linux_boot = (kernel_filename != NULL);
144 kernel_size = 0;
145 if (linux_boot) {
146 int bswap_needed;
148 #ifdef BSWAP_NEEDED
149 bswap_needed = 1;
150 #else
151 bswap_needed = 0;
152 #endif
153 kernel_size = load_elf(kernel_filename, NULL, NULL, kernel_entry,
154 kernel_addr, &kernel_top, 1, EM_SPARCV9, 0, 0);
155 if (kernel_size < 0) {
156 *kernel_addr = KERNEL_LOAD_ADDR;
157 *kernel_entry = KERNEL_LOAD_ADDR;
158 kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
159 RAM_size - KERNEL_LOAD_ADDR, bswap_needed,
160 TARGET_PAGE_SIZE);
162 if (kernel_size < 0) {
163 kernel_size = load_image_targphys(kernel_filename,
164 KERNEL_LOAD_ADDR,
165 RAM_size - KERNEL_LOAD_ADDR);
167 if (kernel_size < 0) {
168 fprintf(stderr, "qemu: could not load kernel '%s'\n",
169 kernel_filename);
170 exit(1);
172 /* load initrd above kernel */
173 *initrd_size = 0;
174 if (initrd_filename) {
175 *initrd_addr = TARGET_PAGE_ALIGN(kernel_top);
177 *initrd_size = load_image_targphys(initrd_filename,
178 *initrd_addr,
179 RAM_size - *initrd_addr);
180 if ((int)*initrd_size < 0) {
181 fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
182 initrd_filename);
183 exit(1);
186 if (*initrd_size > 0) {
187 for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
188 ptr = rom_ptr(*kernel_addr + i);
189 if (ldl_p(ptr + 8) == 0x48647253) { /* HdrS */
190 stl_p(ptr + 24, *initrd_addr + *kernel_addr);
191 stl_p(ptr + 28, *initrd_size);
192 break;
197 return kernel_size;
200 typedef struct ResetData {
201 SPARCCPU *cpu;
202 uint64_t prom_addr;
203 } ResetData;
205 static void isa_irq_handler(void *opaque, int n, int level)
207 static const int isa_irq_to_ivec[16] = {
208 [1] = 0x29, /* keyboard */
209 [4] = 0x2b, /* serial */
210 [6] = 0x27, /* floppy */
211 [7] = 0x22, /* parallel */
212 [12] = 0x2a, /* mouse */
214 qemu_irq *irqs = opaque;
215 int ivec;
217 assert(n < ARRAY_SIZE(isa_irq_to_ivec));
218 ivec = isa_irq_to_ivec[n];
219 EBUS_DPRINTF("Set ISA IRQ %d level %d -> ivec 0x%x\n", n, level, ivec);
220 if (ivec) {
221 qemu_set_irq(irqs[ivec], level);
225 /* EBUS (Eight bit bus) bridge */
226 static ISABus *
227 pci_ebus_init(PCIDevice *pci_dev, qemu_irq *irqs)
229 qemu_irq *isa_irq;
230 ISABus *isa_bus;
232 isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci_dev), "isa.0"));
233 isa_irq = qemu_allocate_irqs(isa_irq_handler, irqs, 16);
234 isa_bus_irqs(isa_bus, isa_irq);
235 return isa_bus;
238 static void pci_ebus_realize(PCIDevice *pci_dev, Error **errp)
240 EbusState *s = DO_UPCAST(EbusState, pci_dev, pci_dev);
242 if (!isa_bus_new(DEVICE(pci_dev), get_system_memory(),
243 pci_address_space_io(pci_dev), errp)) {
244 return;
247 pci_dev->config[0x04] = 0x06; // command = bus master, pci mem
248 pci_dev->config[0x05] = 0x00;
249 pci_dev->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error
250 pci_dev->config[0x07] = 0x03; // status = medium devsel
251 pci_dev->config[0x09] = 0x00; // programming i/f
252 pci_dev->config[0x0D] = 0x0a; // latency_timer
254 memory_region_init_alias(&s->bar0, OBJECT(s), "bar0", get_system_io(),
255 0, 0x1000000);
256 pci_register_bar(pci_dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar0);
257 memory_region_init_alias(&s->bar1, OBJECT(s), "bar1", get_system_io(),
258 0, 0x4000);
259 pci_register_bar(pci_dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &s->bar1);
262 static void ebus_class_init(ObjectClass *klass, void *data)
264 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
266 k->realize = pci_ebus_realize;
267 k->vendor_id = PCI_VENDOR_ID_SUN;
268 k->device_id = PCI_DEVICE_ID_SUN_EBUS;
269 k->revision = 0x01;
270 k->class_id = PCI_CLASS_BRIDGE_OTHER;
273 static const TypeInfo ebus_info = {
274 .name = "ebus",
275 .parent = TYPE_PCI_DEVICE,
276 .instance_size = sizeof(EbusState),
277 .class_init = ebus_class_init,
280 #define TYPE_OPENPROM "openprom"
281 #define OPENPROM(obj) OBJECT_CHECK(PROMState, (obj), TYPE_OPENPROM)
283 typedef struct PROMState {
284 SysBusDevice parent_obj;
286 MemoryRegion prom;
287 } PROMState;
289 static uint64_t translate_prom_address(void *opaque, uint64_t addr)
291 hwaddr *base_addr = (hwaddr *)opaque;
292 return addr + *base_addr - PROM_VADDR;
295 /* Boot PROM (OpenBIOS) */
296 static void prom_init(hwaddr addr, const char *bios_name)
298 DeviceState *dev;
299 SysBusDevice *s;
300 char *filename;
301 int ret;
303 dev = qdev_create(NULL, TYPE_OPENPROM);
304 qdev_init_nofail(dev);
305 s = SYS_BUS_DEVICE(dev);
307 sysbus_mmio_map(s, 0, addr);
309 /* load boot prom */
310 if (bios_name == NULL) {
311 bios_name = PROM_FILENAME;
313 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
314 if (filename) {
315 ret = load_elf(filename, translate_prom_address, &addr,
316 NULL, NULL, NULL, 1, EM_SPARCV9, 0, 0);
317 if (ret < 0 || ret > PROM_SIZE_MAX) {
318 ret = load_image_targphys(filename, addr, PROM_SIZE_MAX);
320 g_free(filename);
321 } else {
322 ret = -1;
324 if (ret < 0 || ret > PROM_SIZE_MAX) {
325 fprintf(stderr, "qemu: could not load prom '%s'\n", bios_name);
326 exit(1);
330 static void prom_init1(Object *obj)
332 PROMState *s = OPENPROM(obj);
333 SysBusDevice *dev = SYS_BUS_DEVICE(obj);
335 memory_region_init_ram_nomigrate(&s->prom, obj, "sun4u.prom", PROM_SIZE_MAX,
336 &error_fatal);
337 vmstate_register_ram_global(&s->prom);
338 memory_region_set_readonly(&s->prom, true);
339 sysbus_init_mmio(dev, &s->prom);
342 static Property prom_properties[] = {
343 {/* end of property list */},
346 static void prom_class_init(ObjectClass *klass, void *data)
348 DeviceClass *dc = DEVICE_CLASS(klass);
350 dc->props = prom_properties;
353 static const TypeInfo prom_info = {
354 .name = TYPE_OPENPROM,
355 .parent = TYPE_SYS_BUS_DEVICE,
356 .instance_size = sizeof(PROMState),
357 .class_init = prom_class_init,
358 .instance_init = prom_init1,
362 #define TYPE_SUN4U_MEMORY "memory"
363 #define SUN4U_RAM(obj) OBJECT_CHECK(RamDevice, (obj), TYPE_SUN4U_MEMORY)
365 typedef struct RamDevice {
366 SysBusDevice parent_obj;
368 MemoryRegion ram;
369 uint64_t size;
370 } RamDevice;
372 /* System RAM */
373 static void ram_realize(DeviceState *dev, Error **errp)
375 RamDevice *d = SUN4U_RAM(dev);
376 SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
378 memory_region_init_ram_nomigrate(&d->ram, OBJECT(d), "sun4u.ram", d->size,
379 &error_fatal);
380 vmstate_register_ram_global(&d->ram);
381 sysbus_init_mmio(sbd, &d->ram);
384 static void ram_init(hwaddr addr, ram_addr_t RAM_size)
386 DeviceState *dev;
387 SysBusDevice *s;
388 RamDevice *d;
390 /* allocate RAM */
391 dev = qdev_create(NULL, TYPE_SUN4U_MEMORY);
392 s = SYS_BUS_DEVICE(dev);
394 d = SUN4U_RAM(dev);
395 d->size = RAM_size;
396 qdev_init_nofail(dev);
398 sysbus_mmio_map(s, 0, addr);
401 static Property ram_properties[] = {
402 DEFINE_PROP_UINT64("size", RamDevice, size, 0),
403 DEFINE_PROP_END_OF_LIST(),
406 static void ram_class_init(ObjectClass *klass, void *data)
408 DeviceClass *dc = DEVICE_CLASS(klass);
410 dc->realize = ram_realize;
411 dc->props = ram_properties;
414 static const TypeInfo ram_info = {
415 .name = TYPE_SUN4U_MEMORY,
416 .parent = TYPE_SYS_BUS_DEVICE,
417 .instance_size = sizeof(RamDevice),
418 .class_init = ram_class_init,
421 static void sun4uv_init(MemoryRegion *address_space_mem,
422 MachineState *machine,
423 const struct hwdef *hwdef)
425 SPARCCPU *cpu;
426 Nvram *nvram;
427 unsigned int i;
428 uint64_t initrd_addr, initrd_size, kernel_addr, kernel_size, kernel_entry;
429 PCIBus *pci_bus, *pci_bus2, *pci_bus3;
430 PCIDevice *ebus;
431 ISABus *isa_bus;
432 SysBusDevice *s;
433 qemu_irq *ivec_irqs, *pbm_irqs;
434 DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
435 DriveInfo *fd[MAX_FD];
436 DeviceState *dev;
437 FWCfgState *fw_cfg;
439 /* init CPUs */
440 cpu = sparc64_cpu_devinit(machine->cpu_model, hwdef->default_cpu_model,
441 hwdef->prom_addr);
443 /* set up devices */
444 ram_init(0, machine->ram_size);
446 prom_init(hwdef->prom_addr, bios_name);
448 ivec_irqs = qemu_allocate_irqs(sparc64_cpu_set_ivec_irq, cpu, IVEC_MAX);
449 pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, ivec_irqs, &pci_bus2,
450 &pci_bus3, &pbm_irqs);
451 pci_vga_init(pci_bus);
453 /* XXX Should be pci_bus3 */
454 ebus = pci_create_simple(pci_bus, -1, "ebus");
455 isa_bus = pci_ebus_init(ebus, pbm_irqs);
457 i = 0;
458 if (hwdef->console_serial_base) {
459 serial_mm_init(address_space_mem, hwdef->console_serial_base, 0,
460 NULL, 115200, serial_hds[i], DEVICE_BIG_ENDIAN);
461 i++;
464 serial_hds_isa_init(isa_bus, i, MAX_SERIAL_PORTS);
465 parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS);
467 for(i = 0; i < nb_nics; i++)
468 pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL);
470 ide_drive_get(hd, ARRAY_SIZE(hd));
472 pci_cmd646_ide_init(pci_bus, hd, 1);
474 isa_create_simple(isa_bus, "i8042");
476 /* Floppy */
477 for(i = 0; i < MAX_FD; i++) {
478 fd[i] = drive_get(IF_FLOPPY, 0, i);
480 dev = DEVICE(isa_create(isa_bus, TYPE_ISA_FDC));
481 if (fd[0]) {
482 qdev_prop_set_drive(dev, "driveA", blk_by_legacy_dinfo(fd[0]),
483 &error_abort);
485 if (fd[1]) {
486 qdev_prop_set_drive(dev, "driveB", blk_by_legacy_dinfo(fd[1]),
487 &error_abort);
489 qdev_prop_set_uint32(dev, "dma", -1);
490 qdev_init_nofail(dev);
492 /* Map NVRAM into I/O (ebus) space */
493 nvram = m48t59_init(NULL, 0, 0, NVRAM_SIZE, 1968, 59);
494 s = SYS_BUS_DEVICE(nvram);
495 memory_region_add_subregion(pci_address_space_io(ebus), 0x2000,
496 sysbus_mmio_get_region(s, 0));
498 initrd_size = 0;
499 initrd_addr = 0;
500 kernel_size = sun4u_load_kernel(machine->kernel_filename,
501 machine->initrd_filename,
502 ram_size, &initrd_size, &initrd_addr,
503 &kernel_addr, &kernel_entry);
505 sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", machine->ram_size,
506 machine->boot_order,
507 kernel_addr, kernel_size,
508 machine->kernel_cmdline,
509 initrd_addr, initrd_size,
510 /* XXX: need an option to load a NVRAM image */
512 graphic_width, graphic_height, graphic_depth,
513 (uint8_t *)&nd_table[0].macaddr);
515 dev = qdev_create(NULL, TYPE_FW_CFG_IO);
516 qdev_prop_set_bit(dev, "dma_enabled", false);
517 object_property_add_child(OBJECT(ebus), TYPE_FW_CFG, OBJECT(dev), NULL);
518 qdev_init_nofail(dev);
519 memory_region_add_subregion(pci_address_space_io(ebus), BIOS_CFG_IOPORT,
520 &FW_CFG_IO(dev)->comb_iomem);
522 fw_cfg = FW_CFG(dev);
523 fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
524 fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus);
525 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
526 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, hwdef->machine_id);
527 fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_entry);
528 fw_cfg_add_i64(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
529 if (machine->kernel_cmdline) {
530 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE,
531 strlen(machine->kernel_cmdline) + 1);
532 fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, machine->kernel_cmdline);
533 } else {
534 fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, 0);
536 fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
537 fw_cfg_add_i64(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
538 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, machine->boot_order[0]);
540 fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_WIDTH, graphic_width);
541 fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_HEIGHT, graphic_height);
542 fw_cfg_add_i16(fw_cfg, FW_CFG_SPARC64_DEPTH, graphic_depth);
544 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
547 enum {
548 sun4u_id = 0,
549 sun4v_id = 64,
552 static const struct hwdef hwdefs[] = {
553 /* Sun4u generic PC-like machine */
555 .default_cpu_model = "TI UltraSparc IIi",
556 .machine_id = sun4u_id,
557 .prom_addr = 0x1fff0000000ULL,
558 .console_serial_base = 0,
560 /* Sun4v generic PC-like machine */
562 .default_cpu_model = "Sun UltraSparc T1",
563 .machine_id = sun4v_id,
564 .prom_addr = 0x1fff0000000ULL,
565 .console_serial_base = 0,
569 /* Sun4u hardware initialisation */
570 static void sun4u_init(MachineState *machine)
572 sun4uv_init(get_system_memory(), machine, &hwdefs[0]);
575 /* Sun4v hardware initialisation */
576 static void sun4v_init(MachineState *machine)
578 sun4uv_init(get_system_memory(), machine, &hwdefs[1]);
581 static void sun4u_class_init(ObjectClass *oc, void *data)
583 MachineClass *mc = MACHINE_CLASS(oc);
585 mc->desc = "Sun4u platform";
586 mc->init = sun4u_init;
587 mc->block_default_type = IF_IDE;
588 mc->max_cpus = 1; /* XXX for now */
589 mc->is_default = 1;
590 mc->default_boot_order = "c";
593 static const TypeInfo sun4u_type = {
594 .name = MACHINE_TYPE_NAME("sun4u"),
595 .parent = TYPE_MACHINE,
596 .class_init = sun4u_class_init,
599 static void sun4v_class_init(ObjectClass *oc, void *data)
601 MachineClass *mc = MACHINE_CLASS(oc);
603 mc->desc = "Sun4v platform";
604 mc->init = sun4v_init;
605 mc->block_default_type = IF_IDE;
606 mc->max_cpus = 1; /* XXX for now */
607 mc->default_boot_order = "c";
610 static const TypeInfo sun4v_type = {
611 .name = MACHINE_TYPE_NAME("sun4v"),
612 .parent = TYPE_MACHINE,
613 .class_init = sun4v_class_init,
616 static void sun4u_register_types(void)
618 type_register_static(&ebus_info);
619 type_register_static(&prom_info);
620 type_register_static(&ram_info);
622 type_register_static(&sun4u_type);
623 type_register_static(&sun4v_type);
626 type_init(sun4u_register_types)