update to netbsd

1 files changed, 210 insertions, 0 deletions

diff --git a/sys/arch/alpha/pci/lca.c b/sys/arch/alpha/pci/lca.c
new file mode 100644
index 00000000000..ac6514fee99
--- /dev/null
+++ b/sys/arch/alpha/pci/lca.c
@@ -0,0 +1,210 @@
+/*	$NetBSD: lca.c,v 1.1 1995/11/23 02:37:38 cgd Exp $	*/
+
+/*
+ * Copyright (c) 1995 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Jeffrey Hsu
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/device.h>
+#include <vm/vm.h>
+
+#include <machine/autoconf.h>
+#include <machine/rpb.h>
+
+#include <dev/isa/isareg.h>
+#include <dev/isa/isavar.h>
+
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcivar.h>
+#include <alpha/pci/lcareg.h>
+#include <alpha/pci/lcavar.h>
+
+int	lcamatch __P((struct device *, void *, void *));
+void	lcaattach __P((struct device *, struct device *, void *));
+
+struct cfdriver lcacd = {
+	NULL, "lca", lcamatch, lcaattach, DV_DULL,
+	    sizeof(struct lca_softc)
+};
+
+static int	lcaprint __P((void *, char *pnp));
+
+/* There can be only one. */
+int lcafound;
+struct lca_config lca_configuration;
+
+int
+lcamatch(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+	struct cfdata *cf = match;
+	struct confargs *ca = aux;
+
+	/* Make sure that we're looking for a LCA. */
+	if (strcmp(ca->ca_name, lcacd.cd_name) != 0)
+		return (0);
+
+	if (lcafound)
+		return (0);
+
+	return (1);
+}
+
+/*
+ * Set up the chipset's function pointers.
+ */
+void
+lca_init(lcp)
+	struct lca_config *lcp;
+{
+
+	/*
+	 * Can't set up SGMAP data here; can be called before malloc().
+	 */
+
+	lcp->lc_conffns = &lca_conf_fns;
+	lcp->lc_confarg = lcp;
+	lcp->lc_dmafns = &lca_dma_fns;
+	lcp->lc_dmaarg = lcp;
+	/* Interrupt routines set up in 'attach' */
+	lcp->lc_memfns = &lca_mem_fns;
+	lcp->lc_memarg = lcp;
+	lcp->lc_piofns = &lca_pio_fns;
+	lcp->lc_pioarg = lcp;
+
+/*
+printf("lca_init: before IOC_HAE=0x%x\n", REGVAL(LCA_IOC_HAE));
+	REGVAL(LCA_IOC_HAE) = 0; */
+
+	REGVAL(LCA_IOC_CONF) = 0;
+
+	/* Turn off DMA window enables in Window Base Registers */
+/*	REGVAL(LCA_IOC_W_BASE0) = 0;
+	REGVAL(LCA_IOC_W_BASE1) = 0; */
+	wbflush();
+}
+
+#ifdef notdef
+void
+lca_init_sgmap(lcp)
+	struct lca_config *lcp;
+{
+
+	/* XXX */
+	lcp->lc_sgmap = malloc(1024 * 8, M_DEVBUF, M_WAITOK);
+	bzero(lcp->lc_sgmap, 1024 * 8);		/* clear all entries. */
+
+	REGVAL(LCA_IOC_W_BASE0) = 0;
+	wbflush();
+
+	/* Set up Translated Base Register 1; translate to sybBus addr 0. */
+	/* check size against APEC XXX JH */
+        REGVAL(LCA_IOC_T_BASE_0) = vtophys(lcp->lc_sgmap) >> 1;
+
+        /* Set up PCI mask register 1; map 8MB space. */
+        REGVAL(LCA_IOC_W_MASK0) = 0x00700000;
+
+        /* Enable window 1; from PCI address 8MB, direct mapped. */
+        REGVAL(LCA_IOC_W_BASE0) = 0x300800000;
+        wbflush();
+}
+#endif
+
+void
+lcaattach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct confargs *ca = aux;
+	struct lca_softc *sc = (struct lca_softc *)self;
+	struct lca_config *lcp;
+	struct pci_attach_args pa;
+
+	/* note that we've attached the chipset; can't have 2 LCAs. */
+	/* Um, not sure about this.  XXX JH */
+	lcafound = 1;
+
+	/*
+	 * set up the chipset's info; done once at console init time
+	 * (maybe), but doesn't hurt to do twice.
+	 */
+	lcp = sc->sc_lcp = &lca_configuration;
+	lca_init(lcp);
+#ifdef notdef
+	lca_init_sgmap(lcp);
+#endif
+
+	/* XXX print chipset information */
+	printf("\n");
+
+	switch (hwrpb->rpb_type) {
+#if defined(DEC_AXPPCI_33)
+	case ST_DEC_AXPPCI_33:
+		pci_axppci_33_pickintr(lcp->lc_conffns, lcp->lc_confarg,
+		    lcp->lc_piofns, lcp->lc_pioarg,
+		    &lcp->lc_intrfns, &lcp->lc_intrarg);
+		break;
+#endif
+	default:
+		panic("lcaattach: shouldn't be here, really...");
+	}
+
+	pa.pa_bus = 0;
+	pa.pa_maxdev = 13;
+	pa.pa_burstlog2 = 8;
+
+	pa.pa_conffns = lcp->lc_conffns;
+	pa.pa_confarg = lcp->lc_confarg;
+	pa.pa_dmafns = lcp->lc_dmafns;
+	pa.pa_dmaarg = lcp->lc_dmaarg;
+	pa.pa_intrfns = lcp->lc_intrfns;
+	pa.pa_intrarg = lcp->lc_intrarg;
+	pa.pa_memfns = lcp->lc_memfns;
+	pa.pa_memarg = lcp->lc_memarg;
+	pa.pa_piofns = lcp->lc_piofns;
+	pa.pa_pioarg = lcp->lc_pioarg;
+
+	config_found(self, &pa, lcaprint);
+}
+
+static int
+lcaprint(aux, pnp)
+	void *aux;
+	char *pnp;
+{
+        register struct pci_attach_args *pa = aux;
+
+	/* what does this do?  XXX JH */
+	/* only PCIs can attach to LCAes; easy. */
+	if (pnp)
+		printf("pci at %s", pnp);
+	printf(" bus %d", pa->pa_bus);
+	return (UNCONF);
+}