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obio.c revision 1.1.28.1
      1  1.1.28.1  wrstuden /*	$NetBSD: obio.c,v 1.1.28.1 2007/09/30 03:39:02 wrstuden Exp $	*/
      2       1.1       uwe 
      3       1.1       uwe /*-
      4       1.1       uwe  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5       1.1       uwe  * All rights reserved.
      6       1.1       uwe  *
      7       1.1       uwe  * This code is derived from software contributed to The NetBSD Foundation
      8       1.1       uwe  * by Charles M. Hannum.
      9       1.1       uwe  *
     10       1.1       uwe  * Redistribution and use in source and binary forms, with or without
     11       1.1       uwe  * modification, are permitted provided that the following conditions
     12       1.1       uwe  * are met:
     13       1.1       uwe  * 1. Redistributions of source code must retain the above copyright
     14       1.1       uwe  *    notice, this list of conditions and the following disclaimer.
     15       1.1       uwe  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.1       uwe  *    notice, this list of conditions and the following disclaimer in the
     17       1.1       uwe  *    documentation and/or other materials provided with the distribution.
     18       1.1       uwe  * 3. All advertising materials mentioning features or use of this software
     19       1.1       uwe  *    must display the following acknowledgement:
     20       1.1       uwe  *        This product includes software developed by the NetBSD
     21       1.1       uwe  *        Foundation, Inc. and its contributors.
     22       1.1       uwe  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23       1.1       uwe  *    contributors may be used to endorse or promote products derived
     24       1.1       uwe  *    from this software without specific prior written permission.
     25       1.1       uwe  *
     26       1.1       uwe  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27       1.1       uwe  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28       1.1       uwe  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29       1.1       uwe  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30       1.1       uwe  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31       1.1       uwe  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32       1.1       uwe  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33       1.1       uwe  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34       1.1       uwe  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35       1.1       uwe  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36       1.1       uwe  * POSSIBILITY OF SUCH DAMAGE.
     37       1.1       uwe  */
     38       1.1       uwe 
     39       1.1       uwe #include <sys/cdefs.h>
     40  1.1.28.1  wrstuden __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.1.28.1 2007/09/30 03:39:02 wrstuden Exp $");
     41       1.1       uwe 
     42       1.1       uwe #include "btn_obio.h"
     43       1.1       uwe #include "pwrsw_obio.h"
     44       1.1       uwe 
     45       1.1       uwe #include <sys/param.h>
     46       1.1       uwe #include <sys/systm.h>
     47       1.1       uwe #include <sys/device.h>
     48       1.1       uwe 
     49       1.1       uwe #include <uvm/uvm_extern.h>
     50       1.1       uwe 
     51       1.1       uwe #include <sh3/devreg.h>
     52       1.1       uwe #include <sh3/mmu.h>
     53       1.1       uwe #include <sh3/pmap.h>
     54       1.1       uwe #include <sh3/pte.h>
     55       1.1       uwe 
     56       1.1       uwe #include <machine/bus.h>
     57       1.1       uwe #include <machine/cpu.h>
     58       1.1       uwe #include <machine/intr.h>
     59       1.1       uwe 
     60       1.1       uwe #include <landisk/dev/obiovar.h>
     61       1.1       uwe 
     62       1.1       uwe #if (NPWRSW_OBIO > 0) || (NBTN_OBIO > 0)
     63       1.1       uwe #include <dev/sysmon/sysmonvar.h>
     64       1.1       uwe #include <dev/sysmon/sysmon_taskq.h>
     65       1.1       uwe #endif
     66       1.1       uwe 
     67       1.1       uwe #include "locators.h"
     68       1.1       uwe 
     69       1.1       uwe static int	obio_match(struct device *, struct cfdata *, void *);
     70       1.1       uwe static void	obio_attach(struct device *, struct device *, void *);
     71       1.1       uwe static int	obio_print(void *, const char *);
     72       1.1       uwe static int	obio_search(struct device *, struct cfdata *,
     73       1.1       uwe 		    const int *, void *);
     74       1.1       uwe 
     75  1.1.28.1  wrstuden CFATTACH_DECL(obio, sizeof(struct obio_softc),
     76       1.1       uwe     obio_match, obio_attach, NULL, NULL);
     77       1.1       uwe 
     78       1.1       uwe static int
     79       1.1       uwe obio_match(struct device *parent, struct cfdata *cf, void *aux)
     80       1.1       uwe {
     81       1.1       uwe 	struct obiobus_attach_args *oba = aux;
     82       1.1       uwe 
     83       1.1       uwe 	if (strcmp(oba->oba_busname, cf->cf_name))
     84       1.1       uwe 		return (0);
     85       1.1       uwe 
     86       1.1       uwe 	return (1);
     87       1.1       uwe }
     88       1.1       uwe 
     89       1.1       uwe static void
     90       1.1       uwe obio_attach(struct device *parent, struct device *self, void *aux)
     91       1.1       uwe {
     92       1.1       uwe 	struct obio_softc *sc = (struct obio_softc *)self;
     93       1.1       uwe 	struct obiobus_attach_args *oba = aux;
     94       1.1       uwe 
     95       1.1       uwe 	printf("\n");
     96       1.1       uwe 
     97       1.1       uwe 	sc->sc_iot = oba->oba_iot;
     98       1.1       uwe 	sc->sc_memt = oba->oba_memt;
     99       1.1       uwe 
    100       1.1       uwe #if (NPWRSW_OBIO > 0) || (NBTN_OBIO > 0)
    101       1.1       uwe 	sysmon_power_settype("landisk");
    102       1.1       uwe 	sysmon_task_queue_init();
    103       1.1       uwe #endif
    104       1.1       uwe 
    105       1.1       uwe 	config_search_ia(obio_search, self, "obio", NULL);
    106       1.1       uwe }
    107       1.1       uwe 
    108       1.1       uwe static int
    109       1.1       uwe obio_search(struct device *parent, struct cfdata *cf,
    110       1.1       uwe     const int *ldesc, void *aux)
    111       1.1       uwe {
    112       1.1       uwe 	struct obio_io res_io[1];
    113       1.1       uwe 	struct obio_iomem res_mem[1];
    114       1.1       uwe 	struct obio_irq res_irq[1];
    115       1.1       uwe 	struct obio_softc *sc = (struct obio_softc *)parent;
    116       1.1       uwe 	struct obio_attach_args oa;
    117       1.1       uwe 	int tryagain;
    118       1.1       uwe 
    119       1.1       uwe 	do {
    120       1.1       uwe 		oa.oa_iot = sc->sc_iot;
    121       1.1       uwe 		oa.oa_memt = sc->sc_memt;
    122       1.1       uwe 
    123       1.1       uwe 		res_io[0].or_addr = cf->cf_iobase;
    124       1.1       uwe 		res_io[0].or_size = cf->cf_iosize;
    125       1.1       uwe 
    126       1.1       uwe 		res_mem[0].or_addr = cf->cf_maddr;
    127       1.1       uwe 		res_mem[0].or_size = cf->cf_msize;
    128       1.1       uwe 
    129       1.1       uwe 		res_irq[0].or_irq = cf->cf_irq;
    130       1.1       uwe 
    131       1.1       uwe 		oa.oa_io = res_io;
    132       1.1       uwe 		oa.oa_nio = 1;
    133       1.1       uwe 
    134       1.1       uwe 		oa.oa_iomem = res_mem;
    135       1.1       uwe 		oa.oa_niomem = 1;
    136       1.1       uwe 
    137       1.1       uwe 		oa.oa_irq = res_irq;
    138       1.1       uwe 		oa.oa_nirq = 1;
    139       1.1       uwe 
    140       1.1       uwe 		tryagain = 0;
    141       1.1       uwe 		if (config_match(parent, cf, &oa) > 0) {
    142       1.1       uwe 			config_attach(parent, cf, &oa, obio_print);
    143       1.1       uwe 			tryagain = (cf->cf_fstate == FSTATE_STAR);
    144       1.1       uwe 		}
    145       1.1       uwe 	} while (tryagain);
    146       1.1       uwe 
    147       1.1       uwe 	return (0);
    148       1.1       uwe }
    149       1.1       uwe 
    150       1.1       uwe static int
    151       1.1       uwe obio_print(void *args, const char *name)
    152       1.1       uwe {
    153       1.1       uwe 	struct obio_attach_args *oa = args;
    154       1.1       uwe 	const char *sep;
    155       1.1       uwe 	int i;
    156       1.1       uwe 
    157       1.1       uwe 	if (oa->oa_nio) {
    158       1.1       uwe 		sep = "";
    159       1.1       uwe 		aprint_normal(" port ");
    160       1.1       uwe 		for (i = 0; i < oa->oa_nio; i++) {
    161       1.1       uwe 			if (oa->oa_io[i].or_size == 0)
    162       1.1       uwe 				continue;
    163       1.1       uwe 			aprint_normal("%s0x%x", sep, oa->oa_io[i].or_addr);
    164       1.1       uwe 			if (oa->oa_io[i].or_size > 1)
    165       1.1       uwe 				aprint_normal("-0x%x", oa->oa_io[i].or_addr +
    166       1.1       uwe 				    oa->oa_io[i].or_size - 1);
    167       1.1       uwe 			sep = ",";
    168       1.1       uwe 		}
    169       1.1       uwe 	}
    170       1.1       uwe 
    171       1.1       uwe 	if (oa->oa_niomem) {
    172       1.1       uwe 		sep = "";
    173       1.1       uwe 		aprint_normal(" iomem ");
    174       1.1       uwe 		for (i = 0; i < oa->oa_niomem; i++) {
    175       1.1       uwe 			if (oa->oa_iomem[i].or_size == 0)
    176       1.1       uwe 				continue;
    177       1.1       uwe 			aprint_normal("%s0x%x", sep, oa->oa_iomem[i].or_addr);
    178       1.1       uwe 			if (oa->oa_iomem[i].or_size > 1)
    179       1.1       uwe 				aprint_normal("-0x%x", oa->oa_iomem[i].or_addr +
    180       1.1       uwe 				    oa->oa_iomem[i].or_size - 1);
    181       1.1       uwe 			sep = ",";
    182       1.1       uwe 		}
    183       1.1       uwe 	}
    184       1.1       uwe 
    185       1.1       uwe 	if (oa->oa_nirq) {
    186       1.1       uwe 		sep = "";
    187       1.1       uwe 		aprint_normal(" irq ");
    188       1.1       uwe 		for (i = 0; i < oa->oa_nirq; i++) {
    189       1.1       uwe 			if (oa->oa_irq[i].or_irq == IRQUNK)
    190       1.1       uwe 				continue;
    191       1.1       uwe 			aprint_normal("%s%d", sep, oa->oa_irq[i].or_irq);
    192       1.1       uwe 			sep = ",";
    193       1.1       uwe 		}
    194       1.1       uwe 	}
    195       1.1       uwe 
    196       1.1       uwe 	return (UNCONF);
    197       1.1       uwe }
    198       1.1       uwe 
    199       1.1       uwe /*
    200       1.1       uwe  * Set up an interrupt handler to start being called.
    201       1.1       uwe  */
    202       1.1       uwe void *
    203       1.1       uwe obio_intr_establish(int irq, int level, int (*ih_fun)(void *), void *ih_arg)
    204       1.1       uwe {
    205       1.1       uwe 
    206       1.1       uwe 	return extintr_establish(irq, level, ih_fun, ih_arg);
    207       1.1       uwe }
    208       1.1       uwe 
    209       1.1       uwe /*
    210       1.1       uwe  * Deregister an interrupt handler.
    211       1.1       uwe  */
    212       1.1       uwe void
    213       1.1       uwe obio_intr_disestablish(void *arg)
    214       1.1       uwe {
    215       1.1       uwe 
    216       1.1       uwe 	extintr_disestablish(arg);
    217       1.1       uwe }
    218       1.1       uwe 
    219       1.1       uwe /*
    220       1.1       uwe  * on-board I/O bus space
    221       1.1       uwe  */
    222       1.1       uwe #define	OBIO_IOMEM_IO		0	/* space is i/o space */
    223       1.1       uwe #define	OBIO_IOMEM_MEM		1	/* space is mem space */
    224       1.1       uwe #define	OBIO_IOMEM_PCMCIA_IO	2	/* PCMCIA IO space */
    225       1.1       uwe #define	OBIO_IOMEM_PCMCIA_MEM	3	/* PCMCIA Mem space */
    226       1.1       uwe #define	OBIO_IOMEM_PCMCIA_ATT	4	/* PCMCIA Attr space */
    227       1.1       uwe #define	OBIO_IOMEM_PCMCIA_8BIT	0x8000	/* PCMCIA BUS 8 BIT WIDTH */
    228       1.1       uwe #define	OBIO_IOMEM_PCMCIA_IO8 \
    229       1.1       uwe 	    (OBIO_IOMEM_PCMCIA_IO|OBIO_IOMEM_PCMCIA_8BIT)
    230       1.1       uwe #define	OBIO_IOMEM_PCMCIA_MEM8 \
    231       1.1       uwe 	    (OBIO_IOMEM_PCMCIA_MEM|OBIO_IOMEM_PCMCIA_8BIT)
    232       1.1       uwe #define	OBIO_IOMEM_PCMCIA_ATT8 \
    233       1.1       uwe 	    (OBIO_IOMEM_PCMCIA_ATT|OBIO_IOMEM_PCMCIA_8BIT)
    234       1.1       uwe 
    235       1.1       uwe int obio_iomem_map(void *v, bus_addr_t bpa, bus_size_t size, int flags,
    236       1.1       uwe     bus_space_handle_t *bshp);
    237       1.1       uwe void obio_iomem_unmap(void *v, bus_space_handle_t bsh, bus_size_t size);
    238       1.1       uwe int obio_iomem_subregion(void *v, bus_space_handle_t bsh,
    239       1.1       uwe     bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp);
    240       1.1       uwe int obio_iomem_alloc(void *v, bus_addr_t rstart, bus_addr_t rend,
    241       1.1       uwe     bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags,
    242       1.1       uwe     bus_addr_t *bpap, bus_space_handle_t *bshp);
    243       1.1       uwe void obio_iomem_free(void *v, bus_space_handle_t bsh, bus_size_t size);
    244       1.1       uwe 
    245       1.1       uwe static int obio_iomem_add_mapping(bus_addr_t, bus_size_t, int,
    246       1.1       uwe     bus_space_handle_t *);
    247       1.1       uwe 
    248       1.1       uwe static int
    249       1.1       uwe obio_iomem_add_mapping(bus_addr_t bpa, bus_size_t size, int type,
    250       1.1       uwe     bus_space_handle_t *bshp)
    251       1.1       uwe {
    252       1.1       uwe 	u_long pa, endpa;
    253       1.1       uwe 	vaddr_t va;
    254       1.1       uwe 	pt_entry_t *pte;
    255       1.1       uwe 	unsigned int m = 0;
    256       1.1       uwe 	int io_type = type & ~OBIO_IOMEM_PCMCIA_8BIT;
    257       1.1       uwe 
    258       1.1       uwe 	pa = sh3_trunc_page(bpa);
    259       1.1       uwe 	endpa = sh3_round_page(bpa + size);
    260       1.1       uwe 
    261       1.1       uwe #ifdef DIAGNOSTIC
    262       1.1       uwe 	if (endpa <= pa)
    263       1.1       uwe 		panic("obio_iomem_add_mapping: overflow");
    264       1.1       uwe #endif
    265       1.1       uwe 
    266       1.1       uwe 	va = uvm_km_alloc(kernel_map, endpa - pa, 0, UVM_KMF_VAONLY);
    267       1.1       uwe 	if (va == 0){
    268       1.1       uwe 		printf("obio_iomem_add_mapping: nomem\n");
    269       1.1       uwe 		return (ENOMEM);
    270       1.1       uwe 	}
    271       1.1       uwe 
    272       1.1       uwe 	*bshp = (bus_space_handle_t)(va + (bpa & PGOFSET));
    273       1.1       uwe 
    274       1.1       uwe #define MODE(t, s)							\
    275       1.1       uwe 	((t) & OBIO_IOMEM_PCMCIA_8BIT) ?				\
    276       1.1       uwe 		_PG_PCMCIA_ ## s ## 8 :					\
    277       1.1       uwe 		_PG_PCMCIA_ ## s ## 16
    278       1.1       uwe 	switch (io_type) {
    279       1.1       uwe 	default:
    280       1.1       uwe 		panic("unknown pcmcia space.");
    281       1.1       uwe 		/* NOTREACHED */
    282       1.1       uwe 	case OBIO_IOMEM_PCMCIA_IO:
    283       1.1       uwe 		m = MODE(type, IO);
    284       1.1       uwe 		break;
    285       1.1       uwe 	case OBIO_IOMEM_PCMCIA_MEM:
    286       1.1       uwe 		m = MODE(type, MEM);
    287       1.1       uwe 		break;
    288       1.1       uwe 	case OBIO_IOMEM_PCMCIA_ATT:
    289       1.1       uwe 		m = MODE(type, ATTR);
    290       1.1       uwe 		break;
    291       1.1       uwe 	}
    292       1.1       uwe #undef MODE
    293       1.1       uwe 
    294       1.1       uwe 	for (; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) {
    295       1.1       uwe 		pmap_kenter_pa(va, pa, VM_PROT_READ | VM_PROT_WRITE);
    296       1.1       uwe 		pte = __pmap_kpte_lookup(va);
    297       1.1       uwe 		KDASSERT(pte);
    298       1.1       uwe 		*pte |= m;  /* PTEA PCMCIA assistant bit */
    299       1.1       uwe 		sh_tlb_update(0, va, *pte);
    300       1.1       uwe 	}
    301       1.1       uwe 
    302       1.1       uwe 	return (0);
    303       1.1       uwe }
    304       1.1       uwe 
    305       1.1       uwe int
    306       1.1       uwe obio_iomem_map(void *v, bus_addr_t bpa, bus_size_t size,
    307       1.1       uwe     int flags, bus_space_handle_t *bshp)
    308       1.1       uwe {
    309       1.1       uwe 	bus_addr_t addr = SH3_PHYS_TO_P2SEG(bpa);
    310       1.1       uwe 	int error;
    311       1.1       uwe 
    312       1.1       uwe 	KASSERT((bpa & SH3_PHYS_MASK) == bpa);
    313       1.1       uwe 
    314       1.1       uwe 	if (bpa < 0x14000000 || bpa >= 0x1c000000) {
    315       1.1       uwe 		/* CS0,1,2,3,4,7 */
    316       1.1       uwe 		*bshp = (bus_space_handle_t)addr;
    317       1.1       uwe 		return (0);
    318       1.1       uwe 	}
    319       1.1       uwe 
    320       1.1       uwe 	/* CS5,6 */
    321       1.1       uwe 	error = obio_iomem_add_mapping(addr, size, (int)(u_long)v, bshp);
    322       1.1       uwe 
    323       1.1       uwe 	return (error);
    324       1.1       uwe }
    325       1.1       uwe 
    326       1.1       uwe void
    327       1.1       uwe obio_iomem_unmap(void *v, bus_space_handle_t bsh, bus_size_t size)
    328       1.1       uwe {
    329       1.1       uwe 	u_long va, endva;
    330       1.1       uwe 	bus_addr_t bpa;
    331       1.1       uwe 
    332       1.1       uwe 	if (bsh >= SH3_P2SEG_BASE && bsh <= SH3_P2SEG_END) {
    333       1.1       uwe 		/* maybe CS0,1,2,3,4,7 */
    334       1.1       uwe 		return;
    335       1.1       uwe 	}
    336       1.1       uwe 
    337       1.1       uwe 	/* CS5,6 */
    338       1.1       uwe 	va = sh3_trunc_page(bsh);
    339       1.1       uwe 	endva = sh3_round_page(bsh + size);
    340       1.1       uwe 
    341       1.1       uwe #ifdef DIAGNOSTIC
    342       1.1       uwe 	if (endva <= va)
    343       1.1       uwe 		panic("obio_io_unmap: overflow");
    344       1.1       uwe #endif
    345       1.1       uwe 
    346       1.1       uwe 	pmap_extract(pmap_kernel(), va, &bpa);
    347       1.1       uwe 	bpa += bsh & PGOFSET;
    348       1.1       uwe 
    349       1.1       uwe 	pmap_kremove(va, endva - va);
    350       1.1       uwe 
    351       1.1       uwe 	/*
    352       1.1       uwe 	 * Free the kernel virtual mapping.
    353       1.1       uwe 	 */
    354       1.1       uwe 	uvm_km_free(kernel_map, va, endva - va, UVM_KMF_VAONLY);
    355       1.1       uwe }
    356       1.1       uwe 
    357       1.1       uwe int
    358       1.1       uwe obio_iomem_subregion(void *v, bus_space_handle_t bsh,
    359       1.1       uwe     bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp)
    360       1.1       uwe {
    361       1.1       uwe 
    362       1.1       uwe 	*nbshp = bsh + offset;
    363       1.1       uwe 
    364       1.1       uwe 	return (0);
    365       1.1       uwe }
    366       1.1       uwe 
    367       1.1       uwe int
    368       1.1       uwe obio_iomem_alloc(void *v, bus_addr_t rstart, bus_addr_t rend,
    369       1.1       uwe     bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags,
    370       1.1       uwe     bus_addr_t *bpap, bus_space_handle_t *bshp)
    371       1.1       uwe {
    372       1.1       uwe 
    373       1.1       uwe 	*bshp = *bpap = rstart;
    374       1.1       uwe 
    375       1.1       uwe 	return (0);
    376       1.1       uwe }
    377       1.1       uwe 
    378       1.1       uwe void
    379       1.1       uwe obio_iomem_free(void *v, bus_space_handle_t bsh, bus_size_t size)
    380       1.1       uwe {
    381       1.1       uwe 
    382       1.1       uwe 	obio_iomem_unmap(v, bsh, size);
    383       1.1       uwe }
    384       1.1       uwe 
    385       1.1       uwe /*
    386       1.1       uwe  * on-board I/O bus space read/write
    387       1.1       uwe  */
    388       1.1       uwe uint8_t obio_iomem_read_1(void *v, bus_space_handle_t bsh, bus_size_t offset);
    389       1.1       uwe uint16_t obio_iomem_read_2(void *v, bus_space_handle_t bsh, bus_size_t offset);
    390       1.1       uwe uint32_t obio_iomem_read_4(void *v, bus_space_handle_t bsh, bus_size_t offset);
    391       1.1       uwe void obio_iomem_read_multi_1(void *v, bus_space_handle_t bsh,
    392       1.1       uwe     bus_size_t offset, uint8_t *addr, bus_size_t count);
    393       1.1       uwe void obio_iomem_read_multi_2(void *v, bus_space_handle_t bsh,
    394       1.1       uwe     bus_size_t offset, uint16_t *addr, bus_size_t count);
    395       1.1       uwe void obio_iomem_read_multi_4(void *v, bus_space_handle_t bsh,
    396       1.1       uwe     bus_size_t offset, uint32_t *addr, bus_size_t count);
    397       1.1       uwe void obio_iomem_read_region_1(void *v, bus_space_handle_t bsh,
    398       1.1       uwe     bus_size_t offset, uint8_t *addr, bus_size_t count);
    399       1.1       uwe void obio_iomem_read_region_2(void *v, bus_space_handle_t bsh,
    400       1.1       uwe     bus_size_t offset, uint16_t *addr, bus_size_t count);
    401       1.1       uwe void obio_iomem_read_region_4(void *v, bus_space_handle_t bsh,
    402       1.1       uwe     bus_size_t offset, uint32_t *addr, bus_size_t count);
    403       1.1       uwe void obio_iomem_write_1(void *v, bus_space_handle_t bsh, bus_size_t offset,
    404       1.1       uwe     uint8_t value);
    405       1.1       uwe void obio_iomem_write_2(void *v, bus_space_handle_t bsh, bus_size_t offset,
    406       1.1       uwe     uint16_t value);
    407       1.1       uwe void obio_iomem_write_4(void *v, bus_space_handle_t bsh, bus_size_t offset,
    408       1.1       uwe     uint32_t value);
    409       1.1       uwe void obio_iomem_write_multi_1(void *v, bus_space_handle_t bsh,
    410       1.1       uwe     bus_size_t offset, const uint8_t *addr, bus_size_t count);
    411       1.1       uwe void obio_iomem_write_multi_2(void *v, bus_space_handle_t bsh,
    412       1.1       uwe     bus_size_t offset, const uint16_t *addr, bus_size_t count);
    413       1.1       uwe void obio_iomem_write_multi_4(void *v, bus_space_handle_t bsh,
    414       1.1       uwe     bus_size_t offset, const uint32_t *addr, bus_size_t count);
    415       1.1       uwe void obio_iomem_write_region_1(void *v, bus_space_handle_t bsh,
    416       1.1       uwe     bus_size_t offset, const uint8_t *addr, bus_size_t count);
    417       1.1       uwe void obio_iomem_write_region_2(void *v, bus_space_handle_t bsh,
    418       1.1       uwe     bus_size_t offset, const uint16_t *addr, bus_size_t count);
    419       1.1       uwe void obio_iomem_write_region_4(void *v, bus_space_handle_t bsh,
    420       1.1       uwe     bus_size_t offset, const uint32_t *addr, bus_size_t count);
    421       1.1       uwe void obio_iomem_set_multi_1(void *v, bus_space_handle_t bsh, bus_size_t offset,
    422       1.1       uwe     uint8_t val, bus_size_t count);
    423       1.1       uwe void obio_iomem_set_multi_2(void *v, bus_space_handle_t bsh, bus_size_t offset,
    424       1.1       uwe     uint16_t val, bus_size_t count);
    425       1.1       uwe void obio_iomem_set_multi_4(void *v, bus_space_handle_t bsh, bus_size_t offset,
    426       1.1       uwe     uint32_t val, bus_size_t count);
    427       1.1       uwe void obio_iomem_set_region_1(void *v, bus_space_handle_t bsh,
    428       1.1       uwe     bus_size_t offset, uint8_t val, bus_size_t count);
    429       1.1       uwe void obio_iomem_set_region_2(void *v, bus_space_handle_t bsh,
    430       1.1       uwe     bus_size_t offset, uint16_t val, bus_size_t count);
    431       1.1       uwe void obio_iomem_set_region_4(void *v, bus_space_handle_t bsh,
    432       1.1       uwe     bus_size_t offset, uint32_t val, bus_size_t count);
    433       1.1       uwe void obio_iomem_copy_region_1(void *v, bus_space_handle_t h1, bus_size_t o1,
    434       1.1       uwe     bus_space_handle_t h2, bus_size_t o2, bus_size_t count);
    435       1.1       uwe void obio_iomem_copy_region_2(void *v, bus_space_handle_t h1, bus_size_t o1,
    436       1.1       uwe     bus_space_handle_t h2, bus_size_t o2, bus_size_t count);
    437       1.1       uwe void obio_iomem_copy_region_4(void *v, bus_space_handle_t h1, bus_size_t o1,
    438       1.1       uwe     bus_space_handle_t h2, bus_size_t o2, bus_size_t count);
    439       1.1       uwe 
    440       1.1       uwe struct _bus_space obio_bus_io =
    441       1.1       uwe {
    442       1.1       uwe 	.bs_cookie = (void *)OBIO_IOMEM_PCMCIA_IO,
    443       1.1       uwe 
    444       1.1       uwe 	.bs_map = obio_iomem_map,
    445       1.1       uwe 	.bs_unmap = obio_iomem_unmap,
    446       1.1       uwe 	.bs_subregion = obio_iomem_subregion,
    447       1.1       uwe 
    448       1.1       uwe 	.bs_alloc = obio_iomem_alloc,
    449       1.1       uwe 	.bs_free = obio_iomem_free,
    450       1.1       uwe 
    451       1.1       uwe 	.bs_r_1 = obio_iomem_read_1,
    452       1.1       uwe 	.bs_r_2 = obio_iomem_read_2,
    453       1.1       uwe 	.bs_r_4 = obio_iomem_read_4,
    454       1.1       uwe 
    455       1.1       uwe 	.bs_rm_1 = obio_iomem_read_multi_1,
    456       1.1       uwe 	.bs_rm_2 = obio_iomem_read_multi_2,
    457       1.1       uwe 	.bs_rm_4 = obio_iomem_read_multi_4,
    458       1.1       uwe 
    459       1.1       uwe 	.bs_rr_1 = obio_iomem_read_region_1,
    460       1.1       uwe 	.bs_rr_2 = obio_iomem_read_region_2,
    461       1.1       uwe 	.bs_rr_4 = obio_iomem_read_region_4,
    462       1.1       uwe 
    463       1.1       uwe 	.bs_w_1 = obio_iomem_write_1,
    464       1.1       uwe 	.bs_w_2 = obio_iomem_write_2,
    465       1.1       uwe 	.bs_w_4 = obio_iomem_write_4,
    466       1.1       uwe 
    467       1.1       uwe 	.bs_wm_1 = obio_iomem_write_multi_1,
    468       1.1       uwe 	.bs_wm_2 = obio_iomem_write_multi_2,
    469       1.1       uwe 	.bs_wm_4 = obio_iomem_write_multi_4,
    470       1.1       uwe 
    471       1.1       uwe 	.bs_wr_1 = obio_iomem_write_region_1,
    472       1.1       uwe 	.bs_wr_2 = obio_iomem_write_region_2,
    473       1.1       uwe 	.bs_wr_4 = obio_iomem_write_region_4,
    474       1.1       uwe 
    475       1.1       uwe 	.bs_sm_1 = obio_iomem_set_multi_1,
    476       1.1       uwe 	.bs_sm_2 = obio_iomem_set_multi_2,
    477       1.1       uwe 	.bs_sm_4 = obio_iomem_set_multi_4,
    478       1.1       uwe 
    479       1.1       uwe 	.bs_sr_1 = obio_iomem_set_region_1,
    480       1.1       uwe 	.bs_sr_2 = obio_iomem_set_region_2,
    481       1.1       uwe 	.bs_sr_4 = obio_iomem_set_region_4,
    482       1.1       uwe 
    483       1.1       uwe 	.bs_c_1 = obio_iomem_copy_region_1,
    484       1.1       uwe 	.bs_c_2 = obio_iomem_copy_region_2,
    485       1.1       uwe 	.bs_c_4 = obio_iomem_copy_region_4,
    486       1.1       uwe };
    487       1.1       uwe 
    488       1.1       uwe struct _bus_space obio_bus_mem =
    489       1.1       uwe {
    490       1.1       uwe 	.bs_cookie = (void *)OBIO_IOMEM_PCMCIA_MEM,
    491       1.1       uwe 
    492       1.1       uwe 	.bs_map = obio_iomem_map,
    493       1.1       uwe 	.bs_unmap = obio_iomem_unmap,
    494       1.1       uwe 	.bs_subregion = obio_iomem_subregion,
    495       1.1       uwe 
    496       1.1       uwe 	.bs_alloc = obio_iomem_alloc,
    497       1.1       uwe 	.bs_free = obio_iomem_free,
    498       1.1       uwe 
    499       1.1       uwe 	.bs_r_1 = obio_iomem_read_1,
    500       1.1       uwe 	.bs_r_2 = obio_iomem_read_2,
    501       1.1       uwe 	.bs_r_4 = obio_iomem_read_4,
    502       1.1       uwe 
    503       1.1       uwe 	.bs_rm_1 = obio_iomem_read_multi_1,
    504       1.1       uwe 	.bs_rm_2 = obio_iomem_read_multi_2,
    505       1.1       uwe 	.bs_rm_4 = obio_iomem_read_multi_4,
    506       1.1       uwe 
    507       1.1       uwe 	.bs_rr_1 = obio_iomem_read_region_1,
    508       1.1       uwe 	.bs_rr_2 = obio_iomem_read_region_2,
    509       1.1       uwe 	.bs_rr_4 = obio_iomem_read_region_4,
    510       1.1       uwe 
    511       1.1       uwe 	.bs_w_1 = obio_iomem_write_1,
    512       1.1       uwe 	.bs_w_2 = obio_iomem_write_2,
    513       1.1       uwe 	.bs_w_4 = obio_iomem_write_4,
    514       1.1       uwe 
    515       1.1       uwe 	.bs_wm_1 = obio_iomem_write_multi_1,
    516       1.1       uwe 	.bs_wm_2 = obio_iomem_write_multi_2,
    517       1.1       uwe 	.bs_wm_4 = obio_iomem_write_multi_4,
    518       1.1       uwe 
    519       1.1       uwe 	.bs_wr_1 = obio_iomem_write_region_1,
    520       1.1       uwe 	.bs_wr_2 = obio_iomem_write_region_2,
    521       1.1       uwe 	.bs_wr_4 = obio_iomem_write_region_4,
    522       1.1       uwe 
    523       1.1       uwe 	.bs_sm_1 = obio_iomem_set_multi_1,
    524       1.1       uwe 	.bs_sm_2 = obio_iomem_set_multi_2,
    525       1.1       uwe 	.bs_sm_4 = obio_iomem_set_multi_4,
    526       1.1       uwe 
    527       1.1       uwe 	.bs_sr_1 = obio_iomem_set_region_1,
    528       1.1       uwe 	.bs_sr_2 = obio_iomem_set_region_2,
    529       1.1       uwe 	.bs_sr_4 = obio_iomem_set_region_4,
    530       1.1       uwe 
    531       1.1       uwe 	.bs_c_1 = obio_iomem_copy_region_1,
    532       1.1       uwe 	.bs_c_2 = obio_iomem_copy_region_2,
    533       1.1       uwe 	.bs_c_4 = obio_iomem_copy_region_4,
    534       1.1       uwe };
    535       1.1       uwe 
    536       1.1       uwe /* read */
    537       1.1       uwe uint8_t
    538       1.1       uwe obio_iomem_read_1(void *v, bus_space_handle_t bsh, bus_size_t offset)
    539       1.1       uwe {
    540       1.1       uwe 
    541       1.1       uwe 	return *(volatile uint8_t *)(bsh + offset);
    542       1.1       uwe }
    543       1.1       uwe 
    544       1.1       uwe uint16_t
    545       1.1       uwe obio_iomem_read_2(void *v, bus_space_handle_t bsh, bus_size_t offset)
    546       1.1       uwe {
    547       1.1       uwe 
    548       1.1       uwe 	return *(volatile uint16_t *)(bsh + offset);
    549       1.1       uwe }
    550       1.1       uwe 
    551       1.1       uwe uint32_t
    552       1.1       uwe obio_iomem_read_4(void *v, bus_space_handle_t bsh, bus_size_t offset)
    553       1.1       uwe {
    554       1.1       uwe 
    555       1.1       uwe 	return *(volatile uint32_t *)(bsh + offset);
    556       1.1       uwe }
    557       1.1       uwe 
    558       1.1       uwe void
    559       1.1       uwe obio_iomem_read_multi_1(void *v, bus_space_handle_t bsh,
    560       1.1       uwe     bus_size_t offset, uint8_t *addr, bus_size_t count)
    561       1.1       uwe {
    562       1.1       uwe 	volatile uint8_t *p = (void *)(bsh + offset);
    563       1.1       uwe 
    564       1.1       uwe 	while (count--) {
    565       1.1       uwe 		*addr++ = *p;
    566       1.1       uwe 	}
    567       1.1       uwe }
    568       1.1       uwe 
    569       1.1       uwe void
    570       1.1       uwe obio_iomem_read_multi_2(void *v, bus_space_handle_t bsh,
    571       1.1       uwe     bus_size_t offset, uint16_t *addr, bus_size_t count)
    572       1.1       uwe {
    573       1.1       uwe 	volatile uint16_t *p = (void *)(bsh + offset);
    574       1.1       uwe 
    575       1.1       uwe 	while (count--) {
    576       1.1       uwe 		*addr++ = *p;
    577       1.1       uwe 	}
    578       1.1       uwe }
    579       1.1       uwe 
    580       1.1       uwe void
    581       1.1       uwe obio_iomem_read_multi_4(void *v, bus_space_handle_t bsh,
    582       1.1       uwe     bus_size_t offset, uint32_t *addr, bus_size_t count)
    583       1.1       uwe {
    584       1.1       uwe 	volatile uint32_t *p = (void *)(bsh + offset);
    585       1.1       uwe 
    586       1.1       uwe 	while (count--) {
    587       1.1       uwe 		*addr++ = *p;
    588       1.1       uwe 	}
    589       1.1       uwe }
    590       1.1       uwe 
    591       1.1       uwe void
    592       1.1       uwe obio_iomem_read_region_1(void *v, bus_space_handle_t bsh,
    593       1.1       uwe     bus_size_t offset, uint8_t *addr, bus_size_t count)
    594       1.1       uwe {
    595       1.1       uwe 	volatile uint8_t *p = (void *)(bsh + offset);
    596       1.1       uwe 
    597       1.1       uwe 	while (count--) {
    598       1.1       uwe 		*addr++ = *p++;
    599       1.1       uwe 	}
    600       1.1       uwe }
    601       1.1       uwe 
    602       1.1       uwe void
    603       1.1       uwe obio_iomem_read_region_2(void *v, bus_space_handle_t bsh,
    604       1.1       uwe     bus_size_t offset, uint16_t *addr, bus_size_t count)
    605       1.1       uwe {
    606       1.1       uwe 	volatile uint16_t *p = (void *)(bsh + offset);
    607       1.1       uwe 
    608       1.1       uwe 	while (count--) {
    609       1.1       uwe 		*addr++ = *p++;
    610       1.1       uwe 	}
    611       1.1       uwe }
    612       1.1       uwe 
    613       1.1       uwe void
    614       1.1       uwe obio_iomem_read_region_4(void *v, bus_space_handle_t bsh,
    615       1.1       uwe     bus_size_t offset, uint32_t *addr, bus_size_t count)
    616       1.1       uwe {
    617       1.1       uwe 	volatile uint32_t *p = (void *)(bsh + offset);
    618       1.1       uwe 
    619       1.1       uwe 	while (count--) {
    620       1.1       uwe 		*addr++ = *p++;
    621       1.1       uwe 	}
    622       1.1       uwe }
    623       1.1       uwe 
    624       1.1       uwe /* write */
    625       1.1       uwe void
    626       1.1       uwe obio_iomem_write_1(void *v, bus_space_handle_t bsh, bus_size_t offset,
    627       1.1       uwe     uint8_t value)
    628       1.1       uwe {
    629       1.1       uwe 
    630       1.1       uwe 	*(volatile uint8_t *)(bsh + offset) = value;
    631       1.1       uwe }
    632       1.1       uwe 
    633       1.1       uwe void
    634       1.1       uwe obio_iomem_write_2(void *v, bus_space_handle_t bsh, bus_size_t offset,
    635       1.1       uwe     uint16_t value)
    636       1.1       uwe {
    637       1.1       uwe 
    638       1.1       uwe 	*(volatile uint16_t *)(bsh + offset) = value;
    639       1.1       uwe }
    640       1.1       uwe 
    641       1.1       uwe void
    642       1.1       uwe obio_iomem_write_4(void *v, bus_space_handle_t bsh, bus_size_t offset,
    643       1.1       uwe     uint32_t value)
    644       1.1       uwe {
    645       1.1       uwe 
    646       1.1       uwe 	*(volatile uint32_t *)(bsh + offset) = value;
    647       1.1       uwe }
    648       1.1       uwe 
    649       1.1       uwe void
    650       1.1       uwe obio_iomem_write_multi_1(void *v, bus_space_handle_t bsh,
    651       1.1       uwe     bus_size_t offset, const uint8_t *addr, bus_size_t count)
    652       1.1       uwe {
    653       1.1       uwe 	volatile uint8_t *p = (void *)(bsh + offset);
    654       1.1       uwe 
    655       1.1       uwe 	while (count--) {
    656       1.1       uwe 		*p = *addr++;
    657       1.1       uwe 	}
    658       1.1       uwe }
    659       1.1       uwe 
    660       1.1       uwe void
    661       1.1       uwe obio_iomem_write_multi_2(void *v, bus_space_handle_t bsh,
    662       1.1       uwe     bus_size_t offset, const uint16_t *addr, bus_size_t count)
    663       1.1       uwe {
    664       1.1       uwe 	volatile uint16_t *p = (void *)(bsh + offset);
    665       1.1       uwe 
    666       1.1       uwe 	while (count--) {
    667       1.1       uwe 		*p = *addr++;
    668       1.1       uwe 	}
    669       1.1       uwe }
    670       1.1       uwe 
    671       1.1       uwe void
    672       1.1       uwe obio_iomem_write_multi_4(void *v, bus_space_handle_t bsh,
    673       1.1       uwe     bus_size_t offset, const uint32_t *addr, bus_size_t count)
    674       1.1       uwe {
    675       1.1       uwe 	volatile uint32_t *p = (void *)(bsh + offset);
    676       1.1       uwe 
    677       1.1       uwe 	while (count--) {
    678       1.1       uwe 		*p = *addr++;
    679       1.1       uwe 	}
    680       1.1       uwe }
    681       1.1       uwe 
    682       1.1       uwe void
    683       1.1       uwe obio_iomem_write_region_1(void *v, bus_space_handle_t bsh,
    684       1.1       uwe     bus_size_t offset, const uint8_t *addr, bus_size_t count)
    685       1.1       uwe {
    686       1.1       uwe 	volatile uint8_t *p = (void *)(bsh + offset);
    687       1.1       uwe 
    688       1.1       uwe 	while (count--) {
    689       1.1       uwe 		*p++ = *addr++;
    690       1.1       uwe 	}
    691       1.1       uwe }
    692       1.1       uwe 
    693       1.1       uwe void
    694       1.1       uwe obio_iomem_write_region_2(void *v, bus_space_handle_t bsh,
    695       1.1       uwe     bus_size_t offset, const uint16_t *addr, bus_size_t count)
    696       1.1       uwe {
    697       1.1       uwe 	volatile uint16_t *p = (void *)(bsh + offset);
    698       1.1       uwe 
    699       1.1       uwe 	while (count--) {
    700       1.1       uwe 		*p++ = *addr++;
    701       1.1       uwe 	}
    702       1.1       uwe }
    703       1.1       uwe 
    704       1.1       uwe void
    705       1.1       uwe obio_iomem_write_region_4(void *v, bus_space_handle_t bsh,
    706       1.1       uwe     bus_size_t offset, const uint32_t *addr, bus_size_t count)
    707       1.1       uwe {
    708       1.1       uwe 	volatile uint32_t *p = (void *)(bsh + offset);
    709       1.1       uwe 
    710       1.1       uwe 	while (count--) {
    711       1.1       uwe 		*p++ = *addr++;
    712       1.1       uwe 	}
    713       1.1       uwe }
    714       1.1       uwe 
    715       1.1       uwe void
    716       1.1       uwe obio_iomem_set_multi_1(void *v, bus_space_handle_t bsh,
    717       1.1       uwe     bus_size_t offset, uint8_t val, bus_size_t count)
    718       1.1       uwe {
    719       1.1       uwe 	volatile uint8_t *p = (void *)(bsh + offset);
    720       1.1       uwe 
    721       1.1       uwe 	while (count--) {
    722       1.1       uwe 		*p = val;
    723       1.1       uwe 	}
    724       1.1       uwe }
    725       1.1       uwe 
    726       1.1       uwe void
    727       1.1       uwe obio_iomem_set_multi_2(void *v, bus_space_handle_t bsh,
    728       1.1       uwe     bus_size_t offset, uint16_t val, bus_size_t count)
    729       1.1       uwe {
    730       1.1       uwe 	volatile uint16_t *p = (void *)(bsh + offset);
    731       1.1       uwe 
    732       1.1       uwe 	while (count--) {
    733       1.1       uwe 		*p = val;
    734       1.1       uwe 	}
    735       1.1       uwe }
    736       1.1       uwe 
    737       1.1       uwe void
    738       1.1       uwe obio_iomem_set_multi_4(void *v, bus_space_handle_t bsh,
    739       1.1       uwe     bus_size_t offset, uint32_t val, bus_size_t count)
    740       1.1       uwe {
    741       1.1       uwe 	volatile uint32_t *p = (void *)(bsh + offset);
    742       1.1       uwe 
    743       1.1       uwe 	while (count--) {
    744       1.1       uwe 		*p = val;
    745       1.1       uwe 	}
    746       1.1       uwe }
    747       1.1       uwe 
    748       1.1       uwe void
    749       1.1       uwe obio_iomem_set_region_1(void *v, bus_space_handle_t bsh,
    750       1.1       uwe     bus_size_t offset, uint8_t val, bus_size_t count)
    751       1.1       uwe {
    752       1.1       uwe 	volatile uint8_t *addr = (void *)(bsh + offset);
    753       1.1       uwe 
    754       1.1       uwe 	while (count--) {
    755       1.1       uwe 		*addr++ = val;
    756       1.1       uwe 	}
    757       1.1       uwe }
    758       1.1       uwe 
    759       1.1       uwe void
    760       1.1       uwe obio_iomem_set_region_2(void *v, bus_space_handle_t bsh,
    761       1.1       uwe     bus_size_t offset, uint16_t val, bus_size_t count)
    762       1.1       uwe {
    763       1.1       uwe 	volatile uint16_t *addr = (void *)(bsh + offset);
    764       1.1       uwe 
    765       1.1       uwe 	while (count--) {
    766       1.1       uwe 		*addr++ = val;
    767       1.1       uwe 	}
    768       1.1       uwe }
    769       1.1       uwe 
    770       1.1       uwe void
    771       1.1       uwe obio_iomem_set_region_4(void *v, bus_space_handle_t bsh,
    772       1.1       uwe     bus_size_t offset, uint32_t val, bus_size_t count)
    773       1.1       uwe {
    774       1.1       uwe 	volatile uint32_t *addr = (void *)(bsh + offset);
    775       1.1       uwe 
    776       1.1       uwe 	while (count--) {
    777       1.1       uwe 		*addr++ = val;
    778       1.1       uwe 	}
    779       1.1       uwe }
    780       1.1       uwe 
    781       1.1       uwe void
    782       1.1       uwe obio_iomem_copy_region_1(void *v, bus_space_handle_t h1, bus_size_t o1,
    783       1.1       uwe     bus_space_handle_t h2, bus_size_t o2, bus_size_t count)
    784       1.1       uwe {
    785       1.1       uwe 	volatile uint8_t *addr1 = (void *)(h1 + o1);
    786       1.1       uwe 	volatile uint8_t *addr2 = (void *)(h2 + o2);
    787       1.1       uwe 
    788       1.1       uwe 	if (addr1 >= addr2) {	/* src after dest: copy forward */
    789       1.1       uwe 		while (count--) {
    790       1.1       uwe 			*addr2++ = *addr1++;
    791       1.1       uwe 		}
    792       1.1       uwe 	} else {		/* dest after src: copy backwards */
    793       1.1       uwe 		addr1 += count - 1;
    794       1.1       uwe 		addr2 += count - 1;
    795       1.1       uwe 		while (count--) {
    796       1.1       uwe 			*addr2-- = *addr1--;
    797       1.1       uwe 		}
    798       1.1       uwe 	}
    799       1.1       uwe }
    800       1.1       uwe 
    801       1.1       uwe void
    802       1.1       uwe obio_iomem_copy_region_2(void *v, bus_space_handle_t h1, bus_size_t o1,
    803       1.1       uwe     bus_space_handle_t h2, bus_size_t o2, bus_size_t count)
    804       1.1       uwe {
    805       1.1       uwe 	volatile uint16_t *addr1 = (void *)(h1 + o1);
    806       1.1       uwe 	volatile uint16_t *addr2 = (void *)(h2 + o2);
    807       1.1       uwe 
    808       1.1       uwe 	if (addr1 >= addr2) {	/* src after dest: copy forward */
    809       1.1       uwe 		while (count--) {
    810       1.1       uwe 			*addr2++ = *addr1++;
    811       1.1       uwe 		}
    812       1.1       uwe 	} else {		/* dest after src: copy backwards */
    813       1.1       uwe 		addr1 += count - 1;
    814       1.1       uwe 		addr2 += count - 1;
    815       1.1       uwe 		while (count--) {
    816       1.1       uwe 			*addr2-- = *addr1--;
    817       1.1       uwe 		}
    818       1.1       uwe 	}
    819       1.1       uwe }
    820       1.1       uwe 
    821       1.1       uwe void
    822       1.1       uwe obio_iomem_copy_region_4(void *v, bus_space_handle_t h1, bus_size_t o1,
    823       1.1       uwe     bus_space_handle_t h2, bus_size_t o2, bus_size_t count)
    824       1.1       uwe {
    825       1.1       uwe 	volatile uint32_t *addr1 = (void *)(h1 + o1);
    826       1.1       uwe 	volatile uint32_t *addr2 = (void *)(h2 + o2);
    827       1.1       uwe 
    828       1.1       uwe 	if (addr1 >= addr2) {	/* src after dest: copy forward */
    829       1.1       uwe 		while (count--) {
    830       1.1       uwe 			*addr2++ = *addr1++;
    831       1.1       uwe 		}
    832       1.1       uwe 	} else {		/* dest after src: copy backwards */
    833       1.1       uwe 		addr1 += count - 1;
    834       1.1       uwe 		addr2 += count - 1;
    835       1.1       uwe 		while (count--) {
    836       1.1       uwe 			*addr2-- = *addr1--;
    837       1.1       uwe 		}
    838       1.1       uwe 	}
    839       1.1       uwe }
    840