diff options
Diffstat (limited to 'sys/arch/socppc/stand/boot/pciide.c')
| -rw-r--r-- | sys/arch/socppc/stand/boot/pciide.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sys/arch/socppc/stand/boot/pciide.c b/sys/arch/socppc/stand/boot/pciide.c new file mode 100644 index 00000000000..14535c8b1c3 --- /dev/null +++ b/sys/arch/socppc/stand/boot/pciide.c @@ -0,0 +1,77 @@ +/* $OpenBSD: pciide.c,v 1.1 2008/05/10 20:06:27 kettenis Exp $ */ +/* $NetBSD: pciide.c,v 1.5 2005/12/11 12:17:06 christos Exp $ */ + +/*- + * Copyright (c) 2003 The NetBSD Foundation, Inc. + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``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 FOUNDATION OR CONTRIBUTORS + * 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. + */ + +#include <sys/types.h> + +#include "libsa.h" +#include "wdvar.h" + +u_int32_t wdc_base_addr = 0; + +int +pciide_init(struct wdc_channel *chp, u_int chan) +{ + u_int32_t cmdreg, ctlreg; + int i; + + /* + * two channels per chip, one drive per channel + */ + if (chan >= PCIIDE_NUM_CHANNELS || wdc_base_addr == 0) + return (ENXIO); + chp->ndrives = 1; + + DPRINTF(("[pciide] channel: %d\n", chan)); + + /* + * XXX map? + */ + cmdreg = wdc_base_addr + chan * 0x10; + ctlreg = wdc_base_addr+0x8 + chan * 0x10; + + /* set up cmd regsiters */ + chp->c_cmdbase = (u_int8_t *)cmdreg; + chp->c_data = (u_int16_t *)(cmdreg + wd_data); + for (i = 0; i < WDC_NPORTS; i++) + chp->c_cmdreg[i] = chp->c_cmdbase + i; + /* set up shadow registers */ + chp->c_cmdreg[wd_status] = chp->c_cmdreg[wd_command]; + chp->c_cmdreg[wd_features] = chp->c_cmdreg[wd_precomp]; + /* set up ctl registers */ + chp->c_ctlbase = (u_int8_t *)ctlreg; + + return (0); +} |