/* $NetBSD: grf_nubus.c,v 1.63 2001/11/20 03:19:44 chs Exp $ */ /* * Copyright (c) 1995 Allen Briggs. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Device-specific routines for handling Nubus-based video cards. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void load_image_data __P((caddr_t data, struct image_data *image)); static void grfmv_intr_generic_write1 __P((void *vsc)); static void grfmv_intr_generic_write4 __P((void *vsc)); static void grfmv_intr_generic_or4 __P((void *vsc)); static void grfmv_intr_cb264 __P((void *vsc)); static void grfmv_intr_cb364 __P((void *vsc)); static void grfmv_intr_cmax __P((void *vsc)); static void grfmv_intr_cti __P((void *vsc)); static void grfmv_intr_radius __P((void *vsc)); static void grfmv_intr_radius24 __P((void *vsc)); static void grfmv_intr_supermacgfx __P((void *vsc)); static void grfmv_intr_lapis __P((void *vsc)); static void grfmv_intr_formac __P((void *vsc)); static void grfmv_intr_vimage __P((void *vsc)); static void grfmv_intr_gvimage __P((void *vsc)); static void grfmv_intr_radius_gsc __P((void *vsc)); static void grfmv_intr_radius_gx __P((void *vsc)); static int grfmv_mode __P((struct grf_softc *gp, int cmd, void *arg)); static int grfmv_match __P((struct device *, struct cfdata *, void *)); static void grfmv_attach __P((struct device *, struct device *, void *)); struct cfattach macvid_ca = { sizeof(struct grfbus_softc), grfmv_match, grfmv_attach }; static void load_image_data(data, image) caddr_t data; struct image_data *image; { bcopy(data , &image->size, 4); bcopy(data + 4, &image->offset, 4); bcopy(data + 8, &image->rowbytes, 2); bcopy(data + 10, &image->top, 2); bcopy(data + 12, &image->left, 2); bcopy(data + 14, &image->bottom, 2); bcopy(data + 16, &image->right, 2); bcopy(data + 18, &image->version, 2); bcopy(data + 20, &image->packType, 2); bcopy(data + 22, &image->packSize, 4); bcopy(data + 26, &image->hRes, 4); bcopy(data + 30, &image->vRes, 4); bcopy(data + 34, &image->pixelType, 2); bcopy(data + 36, &image->pixelSize, 2); bcopy(data + 38, &image->cmpCount, 2); bcopy(data + 40, &image->cmpSize, 2); bcopy(data + 42, &image->planeBytes, 4); } static int grfmv_match(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct nubus_attach_args *na = (struct nubus_attach_args *)aux; if (na->category != NUBUS_CATEGORY_DISPLAY) return 0; if (na->type != NUBUS_TYPE_VIDEO) return 0; if (na->drsw != NUBUS_DRSW_APPLE) return 0; /* * If we've gotten this far, then we're dealing with a real-live * Apple QuickDraw-compatible display card resource. Now, how to * determine that this is an active resource??? Dunno. But we'll * proceed like it is. */ return 1; } static void grfmv_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct grfbus_softc *sc = (struct grfbus_softc *)self; struct nubus_attach_args *na = (struct nubus_attach_args *)aux; struct image_data image_store, image; struct grfmode *gm; char cardname[CARD_NAME_LEN]; nubus_dirent dirent; nubus_dir dir, mode_dir; int mode; bcopy(na->fmt, &sc->sc_slot, sizeof(nubus_slot)); sc->sc_tag = na->na_tag; sc->card_id = na->drhw; sc->sc_basepa = (bus_addr_t)NUBUS_SLOT2PA(na->slot); sc->sc_fbofs = 0; if (bus_space_map(sc->sc_tag, sc->sc_basepa, NBMEMSIZE, 0, &sc->sc_handle)) { printf(": grfmv_attach: failed to map slot %d\n", na->slot); return; } nubus_get_main_dir(&sc->sc_slot, &dir); if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, &sc->sc_slot, &dir, na->rsrcid, &dirent) <= 0) { bad: bus_space_unmap(sc->sc_tag, sc->sc_handle, NBMEMSIZE); return; } nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &sc->board_dir); if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, &sc->sc_slot, &sc->board_dir, NUBUS_RSRC_TYPE, &dirent) <= 0) if ((na->rsrcid != 128) || (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, &sc->sc_slot, &dir, 129, &dirent) <= 0)) goto bad; mode = NUBUS_RSRC_FIRSTMODE; if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, &sc->sc_slot, &sc->board_dir, mode, &dirent) <= 0) { printf(": probe failed to get board rsrc.\n"); goto bad; } nubus_get_dir_from_rsrc(&sc->sc_slot, &dirent, &mode_dir); if (nubus_find_rsrc(sc->sc_tag, sc->sc_handle, &sc->sc_slot, &mode_dir, VID_PARAMS, &dirent) <= 0) { printf(": probe failed to get mode dir.\n"); goto bad; } if (nubus_get_ind_data(sc->sc_tag, sc->sc_handle, &sc->sc_slot, &dirent, (caddr_t)&image_store, sizeof(struct image_data)) <= 0) { printf(": probe failed to get indirect mode data.\n"); goto bad; } /* Need to load display info (and driver?), etc... (?) */ load_image_data((caddr_t)&image_store, &image); gm = &sc->curr_mode; gm->mode_id = mode; gm->ptype = image.pixelType; gm->psize = image.pixelSize; gm->width = image.right - image.left; gm->height = image.bottom - image.top; gm->rowbytes = image.rowbytes; gm->hres = image.hRes; gm->vres = image.vRes; gm->fbsize = gm->height * gm->rowbytes; gm->fbbase = (caddr_t)(sc->sc_handle.base); /* XXX evil hack */ gm->fboff = image.offset; strncpy(cardname, nubus_get_card_name(sc->sc_tag, sc->sc_handle, &sc->sc_slot), CARD_NAME_LEN); cardname[CARD_NAME_LEN-1] = '\0'; printf(": %s\n", cardname); if (sc->card_id == NUBUS_DRHW_TFB) { /* * This is the Toby card, but apparently some manufacturers * (like Cornerstone) didn't bother to get/use their own * value here, even though the cards are different, so we * so we try to differentiate here. */ if (strncmp(cardname, "Samsung 768", 11) == 0) sc->card_id = NUBUS_DRHW_SAM768; else if (strncmp(cardname, "Toby frame", 10) != 0) printf("%s: This display card pretends to be a TFB!\n", sc->sc_dev.dv_xname); } switch (sc->card_id) { case NUBUS_DRHW_TFB: case NUBUS_DRHW_M2HRVC: case NUBUS_DRHW_PVC: sc->cli_offset = 0xa0000; sc->cli_value = 0; add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc); break; case NUBUS_DRHW_WVC: sc->cli_offset = 0xa00000; sc->cli_value = 0; add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc); break; case NUBUS_DRHW_COLORMAX: add_nubus_intr(na->slot, grfmv_intr_cmax, sc); break; case NUBUS_DRHW_SE30: /* Do nothing--SE/30 interrupts are disabled */ break; case NUBUS_DRHW_MDC: sc->cli_offset = 0x200148; sc->cli_value = 1; add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc); /* Enable interrupts; to disable, write 0x7 to this location */ bus_space_write_4(sc->sc_tag, sc->sc_handle, 0x20013C, 5); break; case NUBUS_DRHW_CB264: add_nubus_intr(na->slot, grfmv_intr_cb264, sc); break; case NUBUS_DRHW_CB364: add_nubus_intr(na->slot, grfmv_intr_cb364, sc); break; case NUBUS_DRHW_RPC8: sc->cli_offset = 0xfdff8f; sc->cli_value = 0xff; add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc); break; case NUBUS_DRHW_RPC8XJ: sc->cli_value = 0x66; add_nubus_intr(na->slot, grfmv_intr_radius, sc); break; case NUBUS_DRHW_RPC24X: case NUBUS_DRHW_BOOGIE: sc->cli_value = 0x64; add_nubus_intr(na->slot, grfmv_intr_radius, sc); break; case NUBUS_DRHW_RPC24XP: add_nubus_intr(na->slot, grfmv_intr_radius24, sc); break; case NUBUS_DRHW_RADGSC: add_nubus_intr(na->slot, grfmv_intr_radius_gsc, sc); break; case NUBUS_DRHW_RDCGX: add_nubus_intr(na->slot, grfmv_intr_radius_gx, sc); break; case NUBUS_DRHW_FIILX: case NUBUS_DRHW_FIISXDSP: case NUBUS_DRHW_FUTURASX: sc->cli_offset = 0xf05000; sc->cli_value = 0x80; add_nubus_intr(na->slot, grfmv_intr_generic_write1, sc); break; case NUBUS_DRHW_SAM768: add_nubus_intr(na->slot, grfmv_intr_cti, sc); break; case NUBUS_DRHW_SUPRGFX: add_nubus_intr(na->slot, grfmv_intr_supermacgfx, sc); break; case NUBUS_DRHW_SPECTRM8: sc->cli_offset = 0x0de178; sc->cli_value = 0x80; add_nubus_intr(na->slot, grfmv_intr_generic_or4, sc); break; case NUBUS_DRHW_LAPIS: add_nubus_intr(na->slot, grfmv_intr_lapis, sc); break; case NUBUS_DRHW_FORMAC: add_nubus_intr(na->slot, grfmv_intr_formac, sc); break; case NUBUS_DRHW_ROPS24LXI: case NUBUS_DRHW_ROPS24XLTV: case NUBUS_DRHW_ROPS24MXTV: sc->cli_offset = 0xfb0010; sc->cli_value = 0x00; add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc); break; case NUBUS_DRHW_ROPSPPGT: sc->cli_offset = 0xf50010; sc->cli_value = 0x02; add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc); break; case NUBUS_DRHW_VIMAGE: add_nubus_intr(na->slot, grfmv_intr_vimage, sc); break; case NUBUS_DRHW_GVIMAGE: add_nubus_intr(na->slot, grfmv_intr_gvimage, sc); break; case NUBUS_DRHW_MC2124NB: sc->cli_offset = 0xfd1000; sc->cli_value = 0x00; add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc); break; case NUBUS_DRHW_MICRON: sc->cli_offset = 0xa00014; sc->cli_value = 0; add_nubus_intr(na->slot, grfmv_intr_generic_write4, sc); break; default: printf("%s: Unknown video card ID 0x%x --", sc->sc_dev.dv_xname, sc->card_id); printf(" Not installing interrupt routine.\n"); break; } /* Perform common video attachment. */ grf_establish(sc, &sc->sc_slot, grfmv_mode); } static int grfmv_mode(gp, cmd, arg) struct grf_softc *gp; int cmd; void *arg; { switch (cmd) { case GM_GRFON: case GM_GRFOFF: return 0; case GM_CURRMODE: break; case GM_NEWMODE: break; case GM_LISTMODES: break; } return EINVAL; } /* Interrupt handlers... */ /* * Generic routine to clear interrupts for cards where it simply takes * a MOV.B to clear the interrupt. The offset and value of this byte * varies between cards. */ /*ARGSUSED*/ static void grfmv_intr_generic_write1(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; bus_space_write_1(sc->sc_tag, sc->sc_handle, sc->cli_offset, (u_int8_t)sc->cli_value); } /* * Generic routine to clear interrupts for cards where it simply takes * a MOV.L to clear the interrupt. The offset and value of this byte * varies between cards. */ /*ARGSUSED*/ static void grfmv_intr_generic_write4(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; bus_space_write_4(sc->sc_tag, sc->sc_handle, sc->cli_offset, sc->cli_value); } /* * Generic routine to clear interrupts for cards where it simply takes * an OR.L to clear the interrupt. The offset and value of this byte * varies between cards. */ /*ARGSUSED*/ static void grfmv_intr_generic_or4(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; unsigned long scratch; scratch = bus_space_read_4(sc->sc_tag, sc->sc_handle, sc->cli_offset); scratch |= 0x80; bus_space_write_4(sc->sc_tag, sc->sc_handle, sc->cli_offset, scratch); } /* * Routine to clear interrupts for the Radius PrecisionColor 8xj card. */ /*ARGSUSED*/ static void grfmv_intr_radius(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; u_int8_t c; c = sc->cli_value; c |= 0x80; bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c); c &= 0x7f; bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c); } /* * Routine to clear interrupts for the Radius PrecisionColor 24Xp card. * Is this what the 8xj routine is doing, too? */ /*ARGSUSED*/ static void grfmv_intr_radius24(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; u_int8_t c; c = 0x80 | bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xfffd8); bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c); c &= 0x7f; bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xd00403, c); } /* * Routine to clear interrupts on Samsung 768x1006 video controller. * This controller was manufactured by Cornerstone Technology, Inc., * now known as Cornerstone Imaging. * * To clear this interrupt, we apparently have to set, then clear, * bit 2 at byte offset 0x80000 from the card's base. * Information for this provided by Brad Salai */ /*ARGSUSED*/ static void grfmv_intr_cti(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; u_int8_t c; c = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0x80000); c |= 0x02; bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c); c &= 0xfd; bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x80000, c); } /*ARGSUSED*/ static void grfmv_intr_cb264(vsc) void *vsc; { struct grfbus_softc *sc; volatile char *slotbase; sc = (struct grfbus_softc *)vsc; slotbase = (volatile char *)(sc->sc_handle.base); /* XXX evil hack */ asm volatile(" movl %0,%%a0 movl %%a0@(0xff6028),%%d0 andl #0x2,%%d0 beq _mv_intr0 movql #0x3,%%d0 _mv_intr0: movl %%a0@(0xff600c),%%d1 andl #0x3,%%d1 cmpl %%d1,%%d0 beq _mv_intr_fin movl %%d0,%%a0@(0xff600c) nop tstb %%d0 beq _mv_intr1 movl #0x0002,%%a0@(0xff6040) movl #0x0102,%%a0@(0xff6044) movl #0x0105,%%a0@(0xff6048) movl #0x000e,%%a0@(0xff604c) movl #0x001c,%%a0@(0xff6050) movl #0x00bc,%%a0@(0xff6054) movl #0x00c3,%%a0@(0xff6058) movl #0x0061,%%a0@(0xff605c) movl #0x0012,%%a0@(0xff6060) bra _mv_intr_fin _mv_intr1: movl #0x0002,%%a0@(0xff6040) movl #0x0209,%%a0@(0xff6044) movl #0x020c,%%a0@(0xff6048) movl #0x000f,%%a0@(0xff604c) movl #0x0027,%%a0@(0xff6050) movl #0x00c7,%%a0@(0xff6054) movl #0x00d7,%%a0@(0xff6058) movl #0x006b,%%a0@(0xff605c) movl #0x0029,%%a0@(0xff6060) _mv_intr_fin: movl #0x1,%%a0@(0xff6014)" : : "g" (slotbase) : "a0","d0","d1"); } /* * Support for the Colorboard 364 might be more complex than it needs to * be. If we can find more information about this card, this might be * significantly simplified. Contributions welcome... :-) */ /*ARGSUSED*/ static void grfmv_intr_cb364(vsc) void *vsc; { struct grfbus_softc *sc; volatile char *slotbase; sc = (struct grfbus_softc *)vsc; slotbase = (volatile char *)(sc->sc_handle.base); /* XXX evil hack */ asm volatile(" movl %0,%%a0 movl %%a0@(0xfe6028),%%d0 andl #0x2,%%d0 beq _cb364_intr4 movql #0x3,%%d0 movl %%a0@(0xfe6018),%%d1 movl #0x3,%%a0@(0xfe6018) movw %%a0@(0xfe7010),%%d2 movl %%d1,%%a0@(0xfe6018) movl %%a0@(0xfe6020),%%d1 btst #0x06,%%d2 beq _cb364_intr0 btst #0x00,%%d1 beq _cb364_intr5 bsr _cb364_intr1 bra _cb364_intr_out _cb364_intr0: btst #0x00,%%d1 bne _cb364_intr5 bsr _cb364_intr1 bra _cb364_intr_out _cb364_intr1: movl %%d0,%%a0@(0xfe600c) nop tstb %%d0 beq _cb364_intr3 movl #0x0002,%%a0@(0xfe6040) movl #0x0105,%%a0@(0xfe6048) movl #0x000e,%%a0@(0xfe604c) movl #0x00c3,%%a0@(0xfe6058) movl #0x0061,%%a0@(0xfe605c) btst #0x06,%%d2 beq _cb364_intr2 movl #0x001c,%%a0@(0xfe6050) movl #0x00bc,%%a0@(0xfe6054) movl #0x0012,%%a0@(0xfe6060) movl #0x000e,%%a0@(0xfe6044) movl #0x00c3,%%a0@(0xfe6064) movl #0x0061,%%a0@(0xfe6020) rts _cb364_intr2: movl #0x0016,%%a0@(0xfe6050) movl #0x00b6,%%a0@(0xfe6054) movl #0x0011,%%a0@(0xfe6060) movl #0x0101,%%a0@(0xfe6044) movl #0x00bf,%%a0@(0xfe6064) movl #0x0001,%%a0@(0xfe6020) rts _cb364_intr3: movl #0x0002,%%a0@(0xfe6040) movl #0x0209,%%a0@(0xfe6044) movl #0x020c,%%a0@(0xfe6048) movl #0x000f,%%a0@(0xfe604c) movl #0x0027,%%a0@(0xfe6050) movl #0x00c7,%%a0@(0xfe6054) movl #0x00d7,%%a0@(0xfe6058) movl #0x006b,%%a0@(0xfe605c) movl #0x0029,%%a0@(0xfe6060) oril #0x0040,%%a0@(0xfe6064) movl #0x0000,%%a0@(0xfe6020) rts _cb364_intr4: movq #0x00,%%d0 _cb364_intr5: movl %%a0@(0xfe600c),%%d1 andl #0x3,%%d1 cmpl %%d1,%%d0 beq _cb364_intr_out bsr _cb364_intr1 _cb364_intr_out: movl #0x1,%%a0@(0xfe6014) _cb364_intr_quit: " : : "g" (slotbase) : "a0","d0","d1","d2"); } /* * Interrupt clearing routine for SuperMac GFX card. */ /*ARGSUSED*/ static void grfmv_intr_supermacgfx(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; u_int8_t dummy; dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xE70D3); } /* * Routine to clear interrupts for the Sigma Designs ColorMax card. */ /*ARGSUSED*/ static void grfmv_intr_cmax(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; u_int32_t dummy; dummy = bus_space_read_4(sc->sc_tag, sc->sc_handle, 0xf501c); dummy = bus_space_read_4(sc->sc_tag, sc->sc_handle, 0xf5018); } /* * Routine to clear interrupts for the Lapis ProColorServer 8 PDS card * (for the SE/30). */ /*ARGSUSED*/ static void grfmv_intr_lapis(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xff7000, 0x08); bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xff7000, 0x0C); } /* * Routine to clear interrupts for the Formac Color Card II */ /*ARGSUSED*/ static void grfmv_intr_formac(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; u_int8_t dummy; dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xde80db); dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xde80d3); } /* * Routine to clear interrupts for the Vimage by Interware Co., Ltd. */ /*ARGSUSED*/ static void grfmv_intr_vimage(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x800000, 0x67); bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x800000, 0xE7); } /* * Routine to clear interrupts for the Grand Vimage by Interware Co., Ltd. */ /*ARGSUSED*/ static void grfmv_intr_gvimage(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; u_int8_t dummy; dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xf00000); } /* * Routine to clear interrupts for the Radius GS/C */ /*ARGSUSED*/ static void grfmv_intr_radius_gsc(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; u_int8_t dummy; dummy = bus_space_read_1(sc->sc_tag, sc->sc_handle, 0xfb802); bus_space_write_1(sc->sc_tag, sc->sc_handle, 0xfb802, 0xff); } /* * Routine to clear interrupts for the Radius GS/C */ /*ARGSUSED*/ static void grfmv_intr_radius_gx(vsc) void *vsc; { struct grfbus_softc *sc = (struct grfbus_softc *)vsc; bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x600000, 0x00); bus_space_write_1(sc->sc_tag, sc->sc_handle, 0x600000, 0x20); }