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elroy.c revision 1.1
      1 /*	$NetBSD: elroy.c,v 1.1 2014/02/24 07:23:42 skrll Exp $	*/
      2 
      3 /*	$OpenBSD: elroy.c,v 1.5 2009/03/30 21:24:57 kettenis Exp $	*/
      4 
      5 /*
      6  * Copyright (c) 2005 Michael Shalayeff
      7  * All rights reserved.
      8  *
      9  * Permission to use, copy, modify, and distribute this software for any
     10  * purpose with or without fee is hereby granted, provided that the above
     11  * copyright notice and this permission notice appear in all copies.
     12  *
     13  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     14  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     15  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     16  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     17  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
     18  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
     19  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     20  */
     21 
     22 /* #include "cardbus.h" */
     23 
     24 #include <sys/param.h>
     25 #include <sys/systm.h>
     26 #include <sys/device.h>
     27 #include <sys/reboot.h>
     28 #include <sys/malloc.h>
     29 #include <sys/extent.h>
     30 
     31 #include <machine/iomod.h>
     32 #include <machine/autoconf.h>
     33 
     34 #include <hppa/dev/cpudevs.h>
     35 
     36 #if NCARDBUS > 0
     37 #include <dev/cardbus/rbus.h>
     38 #endif
     39 
     40 #include <dev/pci/pcireg.h>
     41 #include <dev/pci/pcivar.h>
     42 #include <dev/pci/pcidevs.h>
     43 
     44 #include <hppa/dev/elroyreg.h>
     45 #include <hppa/dev/elroyvar.h>
     46 
     47 #define	ELROY_MEM_CHUNK		0x800000
     48 #define	ELROY_MEM_WINDOW	(2 * ELROY_MEM_CHUNK)
     49 
     50 int	elroy_match(device_t, cfdata_t, void *);
     51 void	elroy_attach(device_t, device_t, void *);
     52 
     53 CFATTACH_DECL_NEW(elroy, sizeof(struct elroy_softc), elroy_match, elroy_attach,
     54     NULL, NULL);
     55 
     56 extern struct cfdriver elroy_cd;
     57 
     58 void elroy_write32(volatile uint32_t *, uint32_t);
     59 uint32_t elroy_read32(volatile uint32_t *);
     60 void elroy_attach_hook(device_t, device_t, struct pcibus_attach_args *);
     61 int elroy_maxdevs(void *, int);
     62 pcitag_t elroy_make_tag(void *, int, int, int);
     63 void elroy_decompose_tag(void *, pcitag_t, int *, int *, int *);
     64 pcireg_t elroy_conf_read(void *, pcitag_t, int);
     65 void elroy_conf_write(void *, pcitag_t, int, pcireg_t);
     66 
     67 int elroy_iomap(void *, bus_addr_t, bus_size_t, int, bus_space_handle_t *);
     68 int elroy_memmap(void *, bus_addr_t, bus_size_t, int, bus_space_handle_t *);
     69 int elroy_subregion(void *, bus_space_handle_t, bus_size_t, bus_size_t,
     70     bus_space_handle_t *);
     71 int elroy_ioalloc(void *, bus_addr_t, bus_addr_t, bus_size_t, bus_size_t,
     72     bus_size_t, int, bus_addr_t *, bus_space_handle_t *);
     73 int elroy_memalloc(void *, bus_addr_t, bus_addr_t, bus_size_t, bus_size_t,
     74     bus_size_t, int, bus_addr_t *, bus_space_handle_t *);
     75 void elroy_unmap(void *, bus_space_handle_t, bus_size_t);
     76 void elroy_free(void *, bus_space_handle_t, bus_size_t);
     77 void elroy_barrier(void *, bus_space_handle_t, bus_size_t, bus_size_t, int);
     78 void *elroy_alloc_parent(device_t, struct pci_attach_args *, int);
     79 void *elroy_vaddr(void *, bus_space_handle_t);
     80 paddr_t elroy_mmap(void *, bus_addr_t, off_t, int, int);
     81 
     82 uint8_t elroy_r1(void *, bus_space_handle_t, bus_size_t);
     83 uint16_t elroy_r2(void *, bus_space_handle_t, bus_size_t);
     84 uint32_t elroy_r4(void *, bus_space_handle_t, bus_size_t);
     85 uint64_t elroy_r8(void *, bus_space_handle_t, bus_size_t);
     86 void elroy_w1(void *, bus_space_handle_t, bus_size_t, uint8_t);
     87 void elroy_w2(void *, bus_space_handle_t, bus_size_t, uint16_t);
     88 void elroy_w4(void *, bus_space_handle_t, bus_size_t, uint32_t);
     89 void elroy_w8(void *, bus_space_handle_t, bus_size_t, uint64_t);
     90 
     91 void elroy_rm_1(void *, bus_space_handle_t, bus_size_t, uint8_t *,
     92     bus_size_t);
     93 void elroy_rm_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
     94     bus_size_t);
     95 void elroy_rm_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
     96     bus_size_t);
     97 void elroy_rm_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
     98     bus_size_t);
     99 void elroy_wm_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *,
    100     bus_size_t);
    101 void elroy_wm_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
    102     bus_size_t);
    103 void elroy_wm_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
    104     bus_size_t);
    105 void elroy_wm_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
    106     bus_size_t);
    107 void elroy_sm_1(void *, bus_space_handle_t, bus_size_t, uint8_t,
    108     bus_size_t);
    109 void elroy_sm_2(void *, bus_space_handle_t, bus_size_t, uint16_t,
    110     bus_size_t);
    111 void elroy_sm_4(void *, bus_space_handle_t, bus_size_t, uint32_t,
    112     bus_size_t);
    113 void elroy_sm_8(void *, bus_space_handle_t, bus_size_t, uint64_t,
    114     bus_size_t);
    115 
    116 void elroy_rrm_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
    117     bus_size_t);
    118 void elroy_rrm_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
    119     bus_size_t);
    120 void elroy_rrm_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
    121     bus_size_t);
    122 void elroy_wrm_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
    123     bus_size_t);
    124 void elroy_wrm_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
    125     bus_size_t);
    126 void elroy_wrm_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
    127     bus_size_t);
    128 void elroy_rr_1(void *, bus_space_handle_t, bus_size_t, uint8_t *,
    129     bus_size_t);
    130 void elroy_rr_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
    131     bus_size_t);
    132 void elroy_rr_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
    133     bus_size_t);
    134 void elroy_rr_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
    135     bus_size_t);
    136 void elroy_wr_1(void *, bus_space_handle_t, bus_size_t, const uint8_t *,
    137     bus_size_t);
    138 void elroy_wr_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
    139     bus_size_t);
    140 void elroy_wr_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
    141     bus_size_t);
    142 void elroy_wr_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
    143     bus_size_t);
    144 
    145 void elroy_rrr_2(void *, bus_space_handle_t, bus_size_t, uint16_t *,
    146     bus_size_t);
    147 void elroy_rrr_4(void *, bus_space_handle_t, bus_size_t, uint32_t *,
    148     bus_size_t);
    149 void elroy_rrr_8(void *, bus_space_handle_t, bus_size_t, uint64_t *,
    150     bus_size_t);
    151 void elroy_wrr_2(void *, bus_space_handle_t, bus_size_t, const uint16_t *,
    152     bus_size_t);
    153 void elroy_wrr_4(void *, bus_space_handle_t, bus_size_t, const uint32_t *,
    154     bus_size_t);
    155 void elroy_wrr_8(void *, bus_space_handle_t, bus_size_t, const uint64_t *,
    156     bus_size_t);
    157 void elroy_sr_1(void *, bus_space_handle_t, bus_size_t, uint8_t,
    158     bus_size_t);
    159 void elroy_sr_2(void *, bus_space_handle_t, bus_size_t, uint16_t,
    160     bus_size_t);
    161 void elroy_sr_4(void *, bus_space_handle_t, bus_size_t, uint32_t,
    162     bus_size_t);
    163 void elroy_sr_8(void *, bus_space_handle_t, bus_size_t, uint64_t,
    164     bus_size_t);
    165 void elroy_cp_1(void *, bus_space_handle_t, bus_size_t, bus_space_handle_t,
    166     bus_size_t, bus_size_t);
    167 void elroy_cp_2(void *, bus_space_handle_t, bus_size_t, bus_space_handle_t,
    168     bus_size_t, bus_size_t);
    169 void elroy_cp_4(void *, bus_space_handle_t, bus_size_t, bus_space_handle_t,
    170     bus_size_t, bus_size_t);
    171 void elroy_cp_8(void *, bus_space_handle_t, bus_size_t, bus_space_handle_t,
    172     bus_size_t, bus_size_t);
    173 
    174 int elroy_dmamap_create(void *, bus_size_t, int, bus_size_t, bus_size_t,
    175     int, bus_dmamap_t *);
    176 void elroy_dmamap_destroy(void *, bus_dmamap_t);
    177 int elroy_dmamap_load(void *, bus_dmamap_t, void *, bus_size_t,
    178     struct proc *, int);
    179 int elroy_dmamap_load_mbuf(void *, bus_dmamap_t, struct mbuf *, int);
    180 int elroy_dmamap_load_uio(void *, bus_dmamap_t, struct uio *, int);
    181 int elroy_dmamap_load_raw(void *, bus_dmamap_t, bus_dma_segment_t *,
    182     int, bus_size_t, int);
    183 void elroy_dmamap_unload(void *, bus_dmamap_t);
    184 void elroy_dmamap_sync(void *, bus_dmamap_t, bus_addr_t, bus_size_t,
    185     int);
    186 int elroy_dmamem_alloc(void *, bus_size_t, bus_size_t, bus_size_t,
    187     bus_dma_segment_t *, int, int *, int);
    188 void elroy_dmamem_free(void *, bus_dma_segment_t *, int);
    189 int elroy_dmamem_map(void *, bus_dma_segment_t *, int, size_t,
    190     void **, int);
    191 void elroy_dmamem_unmap(void *, void *, size_t);
    192 paddr_t elroy_dmamem_mmap(void *, bus_dma_segment_t *, int, off_t,
    193     int, int);
    194 
    195 int
    196 elroy_match(device_t parent, cfdata_t cf, void *aux)
    197 {
    198 	struct confargs *ca = aux;
    199 
    200 	if ((ca->ca_name && !strcmp(ca->ca_name, "lba")) ||
    201 	    (ca->ca_type.iodc_type == HPPA_TYPE_BRIDGE &&
    202 	     ca->ca_type.iodc_sv_model == HPPA_BRIDGE_DINO &&
    203 	     ca->ca_type.iodc_model == 0x78))
    204 		return (1);
    205 
    206 	return (0);
    207 }
    208 
    209 void
    210 elroy_write32(volatile uint32_t *p, uint32_t v)
    211 {
    212 	*p = v;
    213 }
    214 
    215 uint32_t
    216 elroy_read32(volatile uint32_t *p)
    217 {
    218 	return *p;
    219 }
    220 
    221 void
    222 elroy_attach_hook(device_t parent, device_t self,
    223     struct pcibus_attach_args *pba)
    224 {
    225 
    226 }
    227 
    228 int
    229 elroy_maxdevs(void *v, int bus)
    230 {
    231 	return (32);
    232 }
    233 
    234 pcitag_t
    235 elroy_make_tag(void *v, int bus, int dev, int func)
    236 {
    237 	if (bus > 255 || dev > 31 || func > 7)
    238 		panic("elroy_make_tag: bad request");
    239 
    240 	return ((bus << 16) | (dev << 11) | (func << 8));
    241 }
    242 
    243 void
    244 elroy_decompose_tag(void *v, pcitag_t tag, int *bus, int *dev, int *func)
    245 {
    246 	*bus = (tag >> 16) & 0xff;
    247 	*dev = (tag >> 11) & 0x1f;
    248 	*func= (tag >>  8) & 0x07;
    249 }
    250 
    251 pcireg_t
    252 elroy_conf_read(void *v, pcitag_t tag, int reg)
    253 {
    254 	struct elroy_softc *sc = v;
    255 	volatile struct elroy_regs *r = sc->sc_regs;
    256 	uint32_t arb_mask, err_cfg, control;
    257 	pcireg_t data;
    258 
    259 /* printf("elroy_conf_read(%p, 0x%08x, 0x%x)", v, tag, reg); */
    260 	arb_mask = elroy_read32(&r->arb_mask);
    261 	err_cfg = elroy_read32(&r->err_cfg);
    262 	control = elroy_read32(&r->control);
    263 	if (!arb_mask)
    264 		elroy_write32(&r->arb_mask, htole32(ELROY_ARB_ENABLE));
    265 	elroy_write32(&r->err_cfg, err_cfg |
    266 	    htole32(ELROY_ERRCFG_SMART | ELROY_ERRCFG_CM));
    267 	elroy_write32(&r->control, (control | htole32(ELROY_CONTROL_CE)) &
    268 	    ~htole32(ELROY_CONTROL_HF));
    269 
    270 	elroy_write32(&r->pci_conf_addr, htole32(tag | reg));
    271 	(void)elroy_read32(&r->pci_conf_addr);
    272 	data = elroy_read32(&r->pci_conf_data);
    273 
    274 	elroy_write32(&r->control, control |
    275 	    htole32(ELROY_CONTROL_CE|ELROY_CONTROL_CL));
    276 	elroy_write32(&r->control, control);
    277 	elroy_write32(&r->err_cfg, err_cfg);
    278 	if (!arb_mask)
    279 		elroy_write32(&r->arb_mask, arb_mask);
    280 
    281 	data = le32toh(data);
    282 /* printf("=0x%08x (@ 0x%08x)\n", data, le32toh(data1)); */
    283 	return (data);
    284 }
    285 
    286 void
    287 elroy_conf_write(void *v, pcitag_t tag, int reg, pcireg_t data)
    288 {
    289 	struct elroy_softc *sc = v;
    290 	volatile struct elroy_regs *r = sc->sc_regs;
    291 	uint32_t arb_mask, err_cfg, control;
    292 
    293 /* printf("elroy_conf_write(%p, 0x%08x, 0x%x, 0x%x)\n", v, tag, reg, data); */
    294 	arb_mask = elroy_read32(&r->arb_mask);
    295 	err_cfg = elroy_read32(&r->err_cfg);
    296 	control = elroy_read32(&r->control);
    297 	if (!arb_mask)
    298 		elroy_write32(&r->arb_mask, htole32(ELROY_ARB_ENABLE));
    299 	elroy_write32(&r->err_cfg, err_cfg |
    300 	    htole32(ELROY_ERRCFG_SMART | ELROY_ERRCFG_CM));
    301 	elroy_write32(&r->control, (control | htole32(ELROY_CONTROL_CE)) &
    302 	    ~htole32(ELROY_CONTROL_HF));
    303 
    304 	/* fix coalescing config writes errata by interleaving w/ a read */
    305 	elroy_write32(&r->pci_conf_addr, htole32(tag | PCI_ID_REG));
    306 	(void)elroy_read32(&r->pci_conf_addr);
    307 	(void)elroy_read32(&r->pci_conf_data);
    308 
    309 	elroy_write32(&r->pci_conf_addr, htole32(tag | reg));
    310 	(void)elroy_read32(&r->pci_conf_addr);
    311 	elroy_write32(&r->pci_conf_data, htole32(data));
    312 	(void)elroy_read32(&r->pci_conf_addr);
    313 
    314 	elroy_write32(&r->control, control |
    315 	    htole32(ELROY_CONTROL_CE|ELROY_CONTROL_CL));
    316 	elroy_write32(&r->control, control);
    317 	elroy_write32(&r->err_cfg, err_cfg);
    318 	if (!arb_mask)
    319 		elroy_write32(&r->arb_mask, arb_mask);
    320 }
    321 
    322 int
    323 elroy_iomap(void *v, bus_addr_t bpa, bus_size_t size,
    324     int flags, bus_space_handle_t *bshp)
    325 {
    326 	struct elroy_softc *sc = v;
    327 	/* volatile struct elroy_regs *r = sc->sc_regs; */
    328 	int error;
    329 
    330 	if ((error = bus_space_map(sc->sc_bt, bpa + sc->sc_iobase, size,
    331 	    flags, bshp)))
    332 		return (error);
    333 
    334 	return (0);
    335 }
    336 
    337 int
    338 elroy_memmap(void *v, bus_addr_t bpa, bus_size_t size,
    339     int flags, bus_space_handle_t *bshp)
    340 {
    341 	struct elroy_softc *sc = v;
    342 	/* volatile struct elroy_regs *r = sc->sc_regs; */
    343 	int error;
    344 
    345 	if ((error = bus_space_map(sc->sc_bt, bpa, size, flags, bshp)))
    346 		return (error);
    347 
    348 	return (0);
    349 }
    350 
    351 int
    352 elroy_subregion(void *v, bus_space_handle_t bsh, bus_size_t offset,
    353     bus_size_t size, bus_space_handle_t *nbshp)
    354 {
    355 	*nbshp = bsh + offset;
    356 	return (0);
    357 }
    358 
    359 int
    360 elroy_ioalloc(void *v, bus_addr_t rstart, bus_addr_t rend, bus_size_t size,
    361     bus_size_t align, bus_size_t boundary, int flags, bus_addr_t *addrp,
    362     bus_space_handle_t *bshp)
    363 {
    364 	struct elroy_softc *sc = v;
    365 	volatile struct elroy_regs *r = sc->sc_regs;
    366 	bus_addr_t iostart, ioend;
    367 
    368 	iostart = r->io_base & ~htole32(ELROY_BASE_RE);
    369 	ioend = iostart + ~htole32(r->io_mask) + 1;
    370 	if (rstart < iostart || rend > ioend)
    371 		panic("elroy_ioalloc: bad region start/end");
    372 
    373 	rstart += sc->sc_iobase;
    374 	rend += sc->sc_iobase;
    375 	if (bus_space_alloc(sc->sc_bt, rstart, rend, size,
    376 	    align, boundary, flags, addrp, bshp))
    377 		return (ENOMEM);
    378 
    379 	return (0);
    380 }
    381 
    382 int
    383 elroy_memalloc(void *v, bus_addr_t rstart, bus_addr_t rend, bus_size_t size,
    384     bus_size_t align, bus_size_t boundary, int flags, bus_addr_t *addrp,
    385     bus_space_handle_t *bshp)
    386 {
    387 	struct elroy_softc *sc = v;
    388 	/* volatile struct elroy_regs *r = sc->sc_regs; */
    389 
    390 	if (bus_space_alloc(sc->sc_bt, rstart, rend, size,
    391 	    align, boundary, flags, addrp, bshp))
    392 		return (ENOMEM);
    393 
    394 	return (0);
    395 }
    396 
    397 void
    398 elroy_unmap(void *v, bus_space_handle_t bsh, bus_size_t size)
    399 {
    400 	struct elroy_softc *sc = v;
    401 
    402 	bus_space_free(sc->sc_bt, bsh, size);
    403 }
    404 
    405 void
    406 elroy_free(void *v, bus_space_handle_t bh, bus_size_t size)
    407 {
    408 	/* should be enough */
    409 	elroy_unmap(v, bh, size);
    410 }
    411 
    412 void
    413 elroy_barrier(void *v, bus_space_handle_t h, bus_size_t o, bus_size_t l, int op)
    414 {
    415 	struct elroy_softc *sc = v;
    416 	volatile struct elroy_regs *r = sc->sc_regs;
    417 
    418 	sync_caches();
    419 	if (op & BUS_SPACE_BARRIER_WRITE) {
    420 		(void)r->pci_id;	/* flush write fifo */
    421 		sync_caches();
    422 	}
    423 }
    424 
    425 #if NCARDBUS > 0
    426 void *
    427 elroy_alloc_parent(device_t self, struct pci_attach_args *pa, int io)
    428 {
    429 #if 0	/* TODO */
    430 
    431 	struct elroy_softc *sc = pa->pa_pc->_cookie;
    432 	struct extent *ex;
    433 	bus_space_tag_t tag;
    434 	bus_addr_t start;
    435 	bus_size_t size;
    436 
    437 	if (io) {
    438 		ex = sc->sc_ioex;
    439 		tag = pa->pa_iot;
    440 		start = 0xa000;
    441 		size = 0x1000;
    442 	} else {
    443 		if (!sc->sc_memex) {
    444 			bus_space_handle_t memh;
    445 			bus_addr_t mem_start;
    446 
    447 			if (elroy_memalloc(sc, 0xf0800000, 0xff7fffff,
    448 			    ELROY_MEM_WINDOW, ELROY_MEM_WINDOW, EX_NOBOUNDARY,
    449 			    0, &mem_start, &memh))
    450 				return (NULL);
    451 
    452 			snprintf(sc->sc_memexname, sizeof(sc->sc_memexname),
    453 			    "%s_mem", device_xname(sc->sc_dv));
    454 			if ((sc->sc_memex = extent_create(sc->sc_memexname,
    455 			    mem_start, mem_start + ELROY_MEM_WINDOW,
    456 			    NULL, 0, EX_NOWAIT | EX_MALLOCOK)) == NULL) {
    457 				extent_destroy(sc->sc_ioex);
    458 				bus_space_free(sc->sc_bt, memh,
    459 				    ELROY_MEM_WINDOW);
    460 				return (NULL);
    461 			}
    462 		}
    463 		ex = sc->sc_memex;
    464 		tag = pa->pa_memt;
    465 		start = ex->ex_start;
    466 		size = ELROY_MEM_CHUNK;
    467 	}
    468 
    469 	if (extent_alloc_subregion(ex, start, ex->ex_end, size, size, 0,
    470 	    EX_NOBOUNDARY, EX_NOWAIT, &start))
    471 		return (NULL);
    472 
    473 	extent_free(ex, start, size, EX_NOWAIT);
    474 	return rbus_new_root_share(tag, ex, start, size, 0);
    475 #else
    476 	return (NULL);
    477 #endif
    478 }
    479 #endif
    480 
    481 void *
    482 elroy_vaddr(void *v, bus_space_handle_t h)
    483 {
    484 	return ((void *)h);
    485 }
    486 
    487 paddr_t
    488 elroy_mmap(void *v, bus_addr_t addr, off_t off, int prot, int flags)
    489 {
    490 
    491 	return -1;
    492 }
    493 
    494 uint8_t
    495 elroy_r1(void *v, bus_space_handle_t h, bus_size_t o)
    496 {
    497 	h += o;
    498 	return *(volatile uint8_t *)h;
    499 }
    500 
    501 uint16_t
    502 elroy_r2(void *v, bus_space_handle_t h, bus_size_t o)
    503 {
    504 	volatile uint16_t *p;
    505 
    506 	h += o;
    507 	p = (volatile uint16_t *)h;
    508 	return (le16toh(*p));
    509 }
    510 
    511 uint32_t
    512 elroy_r4(void *v, bus_space_handle_t h, bus_size_t o)
    513 {
    514 	uint32_t data;
    515 
    516 	h += o;
    517 	data = *(volatile uint32_t *)h;
    518 	return (le32toh(data));
    519 }
    520 
    521 uint64_t
    522 elroy_r8(void *v, bus_space_handle_t h, bus_size_t o)
    523 {
    524 	uint64_t data;
    525 
    526 	h += o;
    527 	data = *(volatile uint64_t *)h;
    528 	return (le64toh(data));
    529 }
    530 
    531 void
    532 elroy_w1(void *v, bus_space_handle_t h, bus_size_t o, uint8_t vv)
    533 {
    534 	h += o;
    535 	*(volatile uint8_t *)h = vv;
    536 }
    537 
    538 void
    539 elroy_w2(void *v, bus_space_handle_t h, bus_size_t o, uint16_t vv)
    540 {
    541 	volatile uint16_t *p;
    542 
    543 	h += o;
    544 	p = (volatile uint16_t *)h;
    545 	*p = htole16(vv);
    546 }
    547 
    548 void
    549 elroy_w4(void *v, bus_space_handle_t h, bus_size_t o, uint32_t vv)
    550 {
    551 	h += o;
    552 	vv = htole32(vv);
    553 	*(volatile uint32_t *)h = vv;
    554 }
    555 
    556 void
    557 elroy_w8(void *v, bus_space_handle_t h, bus_size_t o, uint64_t vv)
    558 {
    559 	h += o;
    560 	*(volatile uint64_t *)h = htole64(vv);
    561 }
    562 
    563 
    564 void
    565 elroy_rm_1(void *v, bus_space_handle_t h, bus_size_t o, uint8_t *a, bus_size_t c)
    566 {
    567 	volatile uint8_t *p;
    568 
    569 	h += o;
    570 	p = (volatile uint8_t *)h;
    571 	while (c--)
    572 		*a++ = *p;
    573 }
    574 
    575 void
    576 elroy_rm_2(void *v, bus_space_handle_t h, bus_size_t o, uint16_t *a, bus_size_t c)
    577 {
    578 	volatile uint16_t *p;
    579 
    580 	h += o;
    581 	p = (volatile uint16_t *)h;
    582 	while (c--)
    583 		*a++ = le16toh(*p);
    584 }
    585 
    586 void
    587 elroy_rm_4(void *v, bus_space_handle_t h, bus_size_t o, uint32_t *a, bus_size_t c)
    588 {
    589 	volatile uint32_t *p;
    590 
    591 	h += o;
    592 	p = (volatile uint32_t *)h;
    593 	while (c--)
    594 		*a++ = le32toh(*p);
    595 }
    596 
    597 void
    598 elroy_rm_8(void *v, bus_space_handle_t h, bus_size_t o, uint64_t *a, bus_size_t c)
    599 {
    600 	volatile uint64_t *p;
    601 
    602 	h += o;
    603 	p = (volatile uint64_t *)h;
    604 	while (c--)
    605 		*a++ = le64toh(*p);
    606 }
    607 
    608 void
    609 elroy_wm_1(void *v, bus_space_handle_t h, bus_size_t o, const uint8_t *a, bus_size_t c)
    610 {
    611 	volatile uint8_t *p;
    612 
    613 	h += o;
    614 	p = (volatile uint8_t *)h;
    615 	while (c--)
    616 		*p = *a++;
    617 }
    618 
    619 void
    620 elroy_wm_2(void *v, bus_space_handle_t h, bus_size_t o, const uint16_t *a, bus_size_t c)
    621 {
    622 	volatile uint16_t *p;
    623 
    624 	h += o;
    625 	p = (volatile uint16_t *)h;
    626 	while (c--)
    627 		*p = htole16(*a++);
    628 }
    629 
    630 void
    631 elroy_wm_4(void *v, bus_space_handle_t h, bus_size_t o, const uint32_t *a, bus_size_t c)
    632 {
    633 	volatile uint32_t *p;
    634 
    635 	h += o;
    636 	p = (volatile uint32_t *)h;
    637 	while (c--)
    638 		*p = htole32(*a++);
    639 }
    640 
    641 void
    642 elroy_wm_8(void *v, bus_space_handle_t h, bus_size_t o, const uint64_t *a, bus_size_t c)
    643 {
    644 	volatile uint64_t *p;
    645 
    646 	h += o;
    647 	p = (volatile uint64_t *)h;
    648 	while (c--)
    649 		*p = htole64(*a++);
    650 }
    651 
    652 void
    653 elroy_sm_1(void *v, bus_space_handle_t h, bus_size_t o, uint8_t vv, bus_size_t c)
    654 {
    655 	volatile uint8_t *p;
    656 
    657 	h += o;
    658 	p = (volatile uint8_t *)h;
    659 	while (c--)
    660 		*p = vv;
    661 }
    662 
    663 void
    664 elroy_sm_2(void *v, bus_space_handle_t h, bus_size_t o, uint16_t vv, bus_size_t c)
    665 {
    666 	volatile uint16_t *p;
    667 
    668 	h += o;
    669 	p = (volatile uint16_t *)h;
    670 	vv = htole16(vv);
    671 	while (c--)
    672 		*p = vv;
    673 }
    674 
    675 void
    676 elroy_sm_4(void *v, bus_space_handle_t h, bus_size_t o, uint32_t vv, bus_size_t c)
    677 {
    678 	volatile uint32_t *p;
    679 
    680 	h += o;
    681 	p = (volatile uint32_t *)h;
    682 	vv = htole32(vv);
    683 	while (c--)
    684 		*p = vv;
    685 }
    686 
    687 void
    688 elroy_sm_8(void *v, bus_space_handle_t h, bus_size_t o, uint64_t vv, bus_size_t c)
    689 {
    690 	volatile uint64_t *p;
    691 
    692 	h += o;
    693 	p = (volatile uint64_t *)h;
    694 	vv = htole64(vv);
    695 	while (c--)
    696 		*p = vv;
    697 }
    698 
    699 void
    700 elroy_rrm_2(void *v, bus_space_handle_t h, bus_size_t o,
    701     uint16_t *a, bus_size_t c)
    702 {
    703 	volatile uint16_t *p, *q = a;
    704 
    705 	h += o;
    706 	p = (volatile uint16_t *)h;
    707 	while (c--)
    708 		*q++ = *p;
    709 }
    710 
    711 void
    712 elroy_rrm_4(void *v, bus_space_handle_t h, bus_size_t o,
    713     uint32_t *a, bus_size_t c)
    714 {
    715 	volatile uint32_t *p, *q = a;
    716 
    717 	h += o;
    718 	p = (volatile uint32_t *)h;
    719 	while (c--)
    720 		*q++ = *p;
    721 }
    722 
    723 void
    724 elroy_rrm_8(void *v, bus_space_handle_t h, bus_size_t o,
    725     uint64_t *a, bus_size_t c)
    726 {
    727 	volatile uint64_t *p, *q = a;
    728 
    729 	h += o;
    730 	p = (volatile uint64_t *)h;
    731 	while (c--)
    732 		*q++ = *p;
    733 }
    734 
    735 void
    736 elroy_wrm_2(void *v, bus_space_handle_t h, bus_size_t o,
    737     const uint16_t *a, bus_size_t c)
    738 {
    739 	volatile uint16_t *p;
    740 	const uint16_t *q = a;
    741 
    742 	h += o;
    743 	p = (volatile uint16_t *)h;
    744 	while (c--)
    745 		*p = *q++;
    746 }
    747 
    748 void
    749 elroy_wrm_4(void *v, bus_space_handle_t h, bus_size_t o,
    750     const uint32_t *a, bus_size_t c)
    751 {
    752 	volatile uint32_t *p;
    753 	const uint32_t *q = a;
    754 
    755 	h += o;
    756 	p = (volatile uint32_t *)h;
    757 	while (c--)
    758 		*p = *q++;
    759 }
    760 
    761 void
    762 elroy_wrm_8(void *v, bus_space_handle_t h, bus_size_t o,
    763     const uint64_t *a, bus_size_t c)
    764 {
    765 	volatile uint64_t *p;
    766 	const uint64_t *q = a;
    767 
    768 	h += o;
    769 	p = (volatile uint64_t *)h;
    770 	while (c--)
    771 		*p = *q++;
    772 }
    773 
    774 void
    775 elroy_rr_1(void *v, bus_space_handle_t h, bus_size_t o, uint8_t *a, bus_size_t c)
    776 {
    777 	volatile uint8_t *p;
    778 
    779 	h += o;
    780 	p = (volatile uint8_t *)h;
    781 	while (c--)
    782 		*a++ = *p++;
    783 }
    784 
    785 void
    786 elroy_rr_2(void *v, bus_space_handle_t h, bus_size_t o, uint16_t *a, bus_size_t c)
    787 {
    788 	volatile uint16_t *p, data;
    789 
    790 	h += o;
    791 	p = (volatile uint16_t *)h;
    792 	while (c--) {
    793 		data = *p++;
    794 		*a++ = le16toh(data);
    795 	}
    796 }
    797 
    798 void
    799 elroy_rr_4(void *v, bus_space_handle_t h, bus_size_t o, uint32_t *a, bus_size_t c)
    800 {
    801 	volatile uint32_t *p, data;
    802 
    803 	h += o;
    804 	p = (volatile uint32_t *)h;
    805 	while (c--) {
    806 		data = *p++;
    807 		*a++ = le32toh(data);
    808 	}
    809 }
    810 
    811 void
    812 elroy_rr_8(void *v, bus_space_handle_t h, bus_size_t o, uint64_t *a, bus_size_t c)
    813 {
    814 	volatile uint64_t *p, data;
    815 
    816 	h += o;
    817 	p = (volatile uint64_t *)h;
    818 	while (c--) {
    819 		data = *p++;
    820 		*a++ = le64toh(data);
    821 	}
    822 }
    823 
    824 void
    825 elroy_wr_1(void *v, bus_space_handle_t h, bus_size_t o, const uint8_t *a, bus_size_t c)
    826 {
    827 	volatile uint8_t *p;
    828 
    829 	h += o;
    830 	p = (volatile uint8_t *)h;
    831 	while (c--)
    832 		*p++ = *a++;
    833 }
    834 
    835 void
    836 elroy_wr_2(void *v, bus_space_handle_t h, bus_size_t o, const uint16_t *a, bus_size_t c)
    837 {
    838 	volatile uint16_t *p, data;
    839 
    840 	h += o;
    841 	p = (volatile uint16_t *)h;
    842 	while (c--) {
    843 		data = *a++;
    844 		*p++ = htole16(data);
    845 	}
    846 }
    847 
    848 void
    849 elroy_wr_4(void *v, bus_space_handle_t h, bus_size_t o, const uint32_t *a, bus_size_t c)
    850 {
    851 	volatile uint32_t *p, data;
    852 
    853 	h += o;
    854 	p = (volatile uint32_t *)h;
    855 	while (c--) {
    856 		data = *a++;
    857 		*p++ = htole32(data);
    858 	}
    859 }
    860 
    861 void
    862 elroy_wr_8(void *v, bus_space_handle_t h, bus_size_t o, const uint64_t *a, bus_size_t c)
    863 {
    864 	volatile uint64_t *p, data;
    865 
    866 	h += o;
    867 	p = (volatile uint64_t *)h;
    868 	while (c--) {
    869 		data = *a++;
    870 		*p++ = htole64(data);
    871 	}
    872 }
    873 
    874 void
    875 elroy_rrr_2(void *v, bus_space_handle_t h, bus_size_t o,
    876     uint16_t *a, bus_size_t c)
    877 {
    878 	volatile uint16_t *p, *q = a;
    879 
    880 	h += o;
    881 	p = (volatile uint16_t *)h;
    882 	while (c--)
    883 		*q++ = *p++;
    884 }
    885 
    886 void
    887 elroy_rrr_4(void *v, bus_space_handle_t h, bus_size_t o,
    888     uint32_t *a, bus_size_t c)
    889 {
    890 	volatile uint32_t *p, *q = a;
    891 
    892 	h += o;
    893 	p = (volatile uint32_t *)h;
    894 	while (c--)
    895 		*q++ = *p++;
    896 }
    897 
    898 void
    899 elroy_rrr_8(void *v, bus_space_handle_t h, bus_size_t o,
    900     uint64_t *a, bus_size_t c)
    901 {
    902 	volatile uint64_t *p, *q = a;
    903 
    904 	h += o;
    905 	p = (volatile uint64_t *)h;
    906 	while (c--)
    907 		*q++ = *p++;
    908 }
    909 
    910 void
    911 elroy_wrr_2(void *v, bus_space_handle_t h, bus_size_t o,
    912     const uint16_t *a, bus_size_t c)
    913 {
    914 	volatile uint16_t *p;
    915 	const uint16_t *q = a;
    916 
    917 	h += o;
    918 	p = (volatile uint16_t *)h;
    919 	while (c--)
    920 		*p++ = *q++;
    921 }
    922 
    923 void
    924 elroy_wrr_4(void *v, bus_space_handle_t h, bus_size_t o,
    925     const uint32_t *a, bus_size_t c)
    926 {
    927 	volatile uint32_t *p;
    928 	const uint32_t *q = a;
    929 
    930 	h += o;
    931 	p = (volatile uint32_t *)h;
    932 	while (c--)
    933 		*p++ = *q++;
    934 }
    935 
    936 void
    937 elroy_wrr_8(void *v, bus_space_handle_t h, bus_size_t o,
    938     const uint64_t *a, bus_size_t c)
    939 {
    940 	volatile uint64_t *p;
    941 	const uint64_t *q = a;
    942 
    943 	h += o;
    944 	p = (volatile uint64_t *)h;
    945 	while (c--)
    946 		*p++ = *q++;
    947 }
    948 
    949 void
    950 elroy_sr_1(void *v, bus_space_handle_t h, bus_size_t o, uint8_t vv, bus_size_t c)
    951 {
    952 	volatile uint8_t *p;
    953 
    954 	h += o;
    955 	p = (volatile uint8_t *)h;
    956 	while (c--)
    957 		*p++ = vv;
    958 }
    959 
    960 void
    961 elroy_sr_2(void *v, bus_space_handle_t h, bus_size_t o, uint16_t vv, bus_size_t c)
    962 {
    963 	volatile uint16_t *p;
    964 
    965 	h += o;
    966 	vv = htole16(vv);
    967 	p = (volatile uint16_t *)h;
    968 	while (c--)
    969 		*p++ = vv;
    970 }
    971 
    972 void
    973 elroy_sr_4(void *v, bus_space_handle_t h, bus_size_t o, uint32_t vv, bus_size_t c)
    974 {
    975 	volatile uint32_t *p;
    976 
    977 	h += o;
    978 	vv = htole32(vv);
    979 	p = (volatile uint32_t *)h;
    980 	while (c--)
    981 		*p++ = vv;
    982 }
    983 
    984 void
    985 elroy_sr_8(void *v, bus_space_handle_t h, bus_size_t o, uint64_t vv, bus_size_t c)
    986 {
    987 	volatile uint64_t *p;
    988 
    989 	h += o;
    990 	vv = htole64(vv);
    991 	p = (volatile uint64_t *)h;
    992 	while (c--)
    993 		*p++ = vv;
    994 }
    995 
    996 void
    997 elroy_cp_1(void *v, bus_space_handle_t h1, bus_size_t o1,
    998 	  bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
    999 {
   1000 	while (c--)
   1001 		elroy_w1(v, h1, o1++, elroy_r1(v, h2, o2++));
   1002 }
   1003 
   1004 void
   1005 elroy_cp_2(void *v, bus_space_handle_t h1, bus_size_t o1,
   1006 	  bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
   1007 {
   1008 	while (c--) {
   1009 		elroy_w2(v, h1, o1, elroy_r2(v, h2, o2));
   1010 		o1 += 2;
   1011 		o2 += 2;
   1012 	}
   1013 }
   1014 
   1015 void
   1016 elroy_cp_4(void *v, bus_space_handle_t h1, bus_size_t o1,
   1017 	  bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
   1018 {
   1019 	while (c--) {
   1020 		elroy_w4(v, h1, o1, elroy_r4(v, h2, o2));
   1021 		o1 += 4;
   1022 		o2 += 4;
   1023 	}
   1024 }
   1025 
   1026 void
   1027 elroy_cp_8(void *v, bus_space_handle_t h1, bus_size_t o1,
   1028 	  bus_space_handle_t h2, bus_size_t o2, bus_size_t c)
   1029 {
   1030 	while (c--) {
   1031 		elroy_w8(v, h1, o1, elroy_r8(v, h2, o2));
   1032 		o1 += 8;
   1033 		o2 += 8;
   1034 	}
   1035 }
   1036 
   1037 const struct hppa_bus_space_tag elroy_iomemt = {
   1038 	NULL,
   1039 
   1040 	NULL, elroy_unmap, elroy_subregion, NULL, elroy_free,
   1041 	elroy_barrier, elroy_vaddr, elroy_mmap,
   1042 	elroy_r1,    elroy_r2,    elroy_r4,    elroy_r8,
   1043 	elroy_w1,    elroy_w2,    elroy_w4,    elroy_w8,
   1044 	elroy_rm_1,  elroy_rm_2,  elroy_rm_4,  elroy_rm_8,
   1045 	elroy_wm_1,  elroy_wm_2,  elroy_wm_4,  elroy_wm_8,
   1046 	elroy_sm_1,  elroy_sm_2,  elroy_sm_4,  elroy_sm_8,
   1047 		     elroy_rrm_2, elroy_rrm_4, elroy_rrm_8,
   1048 		     elroy_wrm_2, elroy_wrm_4, elroy_wrm_8,
   1049 	elroy_rr_1,  elroy_rr_2,  elroy_rr_4,  elroy_rr_8,
   1050 	elroy_wr_1,  elroy_wr_2,  elroy_wr_4,  elroy_wr_8,
   1051 		     elroy_rrr_2, elroy_rrr_4, elroy_rrr_8,
   1052 		     elroy_wrr_2, elroy_wrr_4, elroy_wrr_8,
   1053 	elroy_sr_1,  elroy_sr_2,  elroy_sr_4,  elroy_sr_8,
   1054 	elroy_cp_1,  elroy_cp_2,  elroy_cp_4,  elroy_cp_8
   1055 };
   1056 
   1057 int
   1058 elroy_dmamap_create(void *v, bus_size_t size, int nsegments,
   1059     bus_size_t maxsegsz, bus_size_t boundary, int flags, bus_dmamap_t *dmamp)
   1060 {
   1061 	struct elroy_softc *sc = v;
   1062 
   1063 	/* TODO check the addresses, boundary, enable dma */
   1064 
   1065 	return (bus_dmamap_create(sc->sc_dmat, size, nsegments,
   1066 	    maxsegsz, boundary, flags, dmamp));
   1067 }
   1068 
   1069 void
   1070 elroy_dmamap_destroy(void *v, bus_dmamap_t map)
   1071 {
   1072 	struct elroy_softc *sc = v;
   1073 
   1074 	bus_dmamap_destroy(sc->sc_dmat, map);
   1075 }
   1076 
   1077 int
   1078 elroy_dmamap_load(void *v, bus_dmamap_t map, void *addr, bus_size_t size,
   1079     struct proc *p, int flags)
   1080 {
   1081 	struct elroy_softc *sc = v;
   1082 
   1083 	return (bus_dmamap_load(sc->sc_dmat, map, addr, size, p, flags));
   1084 }
   1085 
   1086 int
   1087 elroy_dmamap_load_mbuf(void *v, bus_dmamap_t map, struct mbuf *m, int flags)
   1088 {
   1089 	struct elroy_softc *sc = v;
   1090 
   1091 	return (bus_dmamap_load_mbuf(sc->sc_dmat, map, m, flags));
   1092 }
   1093 
   1094 int
   1095 elroy_dmamap_load_uio(void *v, bus_dmamap_t map, struct uio *uio, int flags)
   1096 {
   1097 	struct elroy_softc *sc = v;
   1098 
   1099 	return (bus_dmamap_load_uio(sc->sc_dmat, map, uio, flags));
   1100 }
   1101 
   1102 int
   1103 elroy_dmamap_load_raw(void *v, bus_dmamap_t map, bus_dma_segment_t *segs,
   1104     int nsegs, bus_size_t size, int flags)
   1105 {
   1106 	struct elroy_softc *sc = v;
   1107 
   1108 	return (bus_dmamap_load_raw(sc->sc_dmat, map, segs, nsegs, size, flags));
   1109 }
   1110 
   1111 void
   1112 elroy_dmamap_unload(void *v, bus_dmamap_t map)
   1113 {
   1114 	struct elroy_softc *sc = v;
   1115 
   1116 	bus_dmamap_unload(sc->sc_dmat, map);
   1117 }
   1118 
   1119 void
   1120 elroy_dmamap_sync(void *v, bus_dmamap_t map, bus_addr_t off,
   1121     bus_size_t len, int ops)
   1122 {
   1123 	struct elroy_softc *sc = v;
   1124 
   1125 	bus_dmamap_sync(sc->sc_dmat, map, off, len, ops);
   1126 }
   1127 
   1128 int
   1129 elroy_dmamem_alloc(void *v, bus_size_t size, bus_size_t alignment,
   1130     bus_size_t boundary, bus_dma_segment_t *segs,
   1131     int nsegs, int *rsegs, int flags)
   1132 {
   1133 	struct elroy_softc *sc = v;
   1134 
   1135 	return (bus_dmamem_alloc(sc->sc_dmat, size, alignment, boundary,
   1136 	    segs, nsegs, rsegs, flags));
   1137 }
   1138 
   1139 void
   1140 elroy_dmamem_free(void *v, bus_dma_segment_t *segs, int nsegs)
   1141 {
   1142 	struct elroy_softc *sc = v;
   1143 
   1144 	bus_dmamem_free(sc->sc_dmat, segs, nsegs);
   1145 }
   1146 
   1147 int
   1148 elroy_dmamem_map(void *v, bus_dma_segment_t *segs, int nsegs, size_t size,
   1149     void **kvap, int flags)
   1150 {
   1151 	struct elroy_softc *sc = v;
   1152 
   1153 	return (bus_dmamem_map(sc->sc_dmat, segs, nsegs, size, kvap, flags));
   1154 }
   1155 
   1156 void
   1157 elroy_dmamem_unmap(void *v, void *kva, size_t size)
   1158 {
   1159 	struct elroy_softc *sc = v;
   1160 
   1161 	bus_dmamem_unmap(sc->sc_dmat, kva, size);
   1162 }
   1163 
   1164 paddr_t
   1165 elroy_dmamem_mmap(void *v, bus_dma_segment_t *segs, int nsegs, off_t off,
   1166     int prot, int flags)
   1167 {
   1168 	struct elroy_softc *sc = v;
   1169 
   1170 	return (bus_dmamem_mmap(sc->sc_dmat, segs, nsegs, off, prot, flags));
   1171 }
   1172 
   1173 const struct hppa_bus_dma_tag elroy_dmat = {
   1174 	NULL,
   1175 	elroy_dmamap_create, elroy_dmamap_destroy,
   1176 	elroy_dmamap_load, elroy_dmamap_load_mbuf,
   1177 	elroy_dmamap_load_uio, elroy_dmamap_load_raw,
   1178 	elroy_dmamap_unload, elroy_dmamap_sync,
   1179 
   1180 	elroy_dmamem_alloc, elroy_dmamem_free, elroy_dmamem_map,
   1181 	elroy_dmamem_unmap, elroy_dmamem_mmap
   1182 };
   1183 
   1184 const struct hppa_pci_chipset_tag elroy_pc = {
   1185 	NULL,
   1186 	elroy_attach_hook, elroy_maxdevs, elroy_make_tag, elroy_decompose_tag,
   1187 	elroy_conf_read, elroy_conf_write,
   1188 	apic_intr_map, apic_intr_string,
   1189 	apic_intr_establish, apic_intr_disestablish,
   1190 #if NCARDBUS > 0
   1191 	elroy_alloc_parent
   1192 #else
   1193 	NULL
   1194 #endif
   1195 };
   1196 
   1197 void
   1198 elroy_attach(device_t parent, device_t self, void *aux)
   1199 {
   1200 	struct elroy_softc *sc = device_private(self);
   1201 	struct confargs *ca = (struct confargs *)aux;
   1202 	struct pcibus_attach_args pba;
   1203 	volatile struct elroy_regs *r;
   1204 	const char *p = NULL, *q;
   1205 	int i;
   1206 
   1207 	sc->sc_dv = self;
   1208 	sc->sc_hpa = ca->ca_hpa;
   1209 	sc->sc_bt = ca->ca_iot;
   1210 	sc->sc_dmat = ca->ca_dmatag;
   1211 	if (bus_space_map(sc->sc_bt, ca->ca_hpa, ca->ca_hpasz, 0, &sc->sc_bh)) {
   1212 		aprint_error(": can't map space\n");
   1213 		return;
   1214 	}
   1215 
   1216 	sc->sc_regs = r = bus_space_vaddr(sc->sc_bt, sc->sc_bh);
   1217 	elroy_write32(&r->pci_cmdstat, htole32(PCI_COMMAND_IO_ENABLE |
   1218 	    PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE));
   1219 
   1220 	elroy_write32(&r->control, elroy_read32(&r->control) &
   1221 	    ~htole32(ELROY_CONTROL_RF));
   1222 	for (i = 5000; i-- &&
   1223 	    elroy_read32(&r->status) & htole32(ELROY_STATUS_RC); DELAY(10));
   1224 	if (i < 0) {
   1225 		char buf[128]; /* XXXNH */
   1226 
   1227 		snprintb(buf, sizeof(buf), ELROY_STATUS_BITS,
   1228 		    htole32(r->status));
   1229 		aprint_error(": reset failed; status %s\n", buf);
   1230 		return;
   1231 	}
   1232 
   1233 	q = "";
   1234 	sc->sc_ver = PCI_REVISION(le32toh(elroy_read32(&r->pci_class)));
   1235 	switch ((ca->ca_type.iodc_model << 4) |
   1236 	    (ca->ca_type.iodc_revision >> 4)) {
   1237 	case 0x782:
   1238 		p = "Elroy";
   1239 		switch (sc->sc_ver) {
   1240 		default:
   1241 			q = "+";
   1242 		case 5:	sc->sc_ver = 0x40;	break;
   1243 		case 4:	sc->sc_ver = 0x30;	break;
   1244 		case 3:	sc->sc_ver = 0x22;	break;
   1245 		case 2:	sc->sc_ver = 0x21;	break;
   1246 		case 1:	sc->sc_ver = 0x20;	break;
   1247 		case 0:	sc->sc_ver = 0x10;	break;
   1248 		}
   1249 		break;
   1250 
   1251 	case 0x783:
   1252 		p = "Mercury";
   1253 		break;
   1254 
   1255 	case 0x784:
   1256 		p = "Quicksilver";
   1257 		break;
   1258 
   1259 	default:
   1260 		p = "Mojo";
   1261 		break;
   1262 	}
   1263 
   1264 	aprint_normal(": %s TR%d.%d%s", p, sc->sc_ver >> 4, sc->sc_ver & 0xf,
   1265 	    q);
   1266 	apic_attach(sc);
   1267 	aprint_normal("\n");
   1268 
   1269 	elroy_write32(&r->imask, htole32(0xffffffff << 30));
   1270 	elroy_write32(&r->ibase, htole32(ELROY_BASE_RE));
   1271 
   1272 	/* TODO reserve elroy's pci space ? */
   1273 
   1274 #if 0
   1275 printf("lmm %llx/%llx gmm %llx/%llx wlm %llx/%llx wgm %llx/%llx io %llx/%llx eio %llx/%llx\n",
   1276 le64toh(r->lmmio_base), le64toh(r->lmmio_mask),
   1277 le64toh(r->gmmio_base), le64toh(r->gmmio_mask),
   1278 le64toh(r->wlmmio_base), le64toh(r->wlmmio_mask),
   1279 le64toh(r->wgmmio_base), le64toh(r->wgmmio_mask),
   1280 le64toh(r->io_base), le64toh(r->io_mask),
   1281 le64toh(r->eio_base), le64toh(r->eio_mask));
   1282 #endif
   1283 
   1284 	/* XXX evil hack! */
   1285 	sc->sc_iobase = 0xfee00000;
   1286 
   1287 	sc->sc_iot = elroy_iomemt;
   1288 	sc->sc_iot.hbt_cookie = sc;
   1289 	sc->sc_iot.hbt_map = elroy_iomap;
   1290 	sc->sc_iot.hbt_alloc = elroy_ioalloc;
   1291 	sc->sc_memt = elroy_iomemt;
   1292 	sc->sc_memt.hbt_cookie = sc;
   1293 	sc->sc_memt.hbt_map = elroy_memmap;
   1294 	sc->sc_memt.hbt_alloc = elroy_memalloc;
   1295 	sc->sc_pc = elroy_pc;
   1296 	sc->sc_pc._cookie = sc;
   1297 	sc->sc_dmatag = elroy_dmat;
   1298 	sc->sc_dmatag._cookie = sc;
   1299 
   1300 	memset(&pba, 0, sizeof(pba));
   1301 	pba.pba_iot = &sc->sc_iot;
   1302 	pba.pba_memt = &sc->sc_memt;
   1303 	pba.pba_dmat = &sc->sc_dmatag;
   1304 	pba.pba_pc = &sc->sc_pc;
   1305 	pba.pba_bus = 0; /* (le32toh(elroy_read32(&r->busnum)) & 0xff) >> 4; */
   1306  	pba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY;
   1307 
   1308 	config_found_ia(self, "pcibus", &pba, pcibusprint);
   1309 }
   1310