Add support for Alpha Processor, Inc. UP1000.

From NetBSD.

1 files changed, 235 insertions, 0 deletions

diff --git a/sys/arch/alpha/pci/irongate.c b/sys/arch/alpha/pci/irongate.c
new file mode 100644
index 00000000000..2d478b85527
--- /dev/null
+++ b/sys/arch/alpha/pci/irongate.c
@@ -0,0 +1,235 @@
+/* $NetBSD: irongate.c,v 1.3 2000/11/29 06:29:10 thorpej Exp $ */
+
+/*-
+ * Copyright (c) 2000 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe.
+ *
+ * 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/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/malloc.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/irongatereg.h>
+#include <alpha/pci/irongatevar.h>
+
+#ifdef API_UP1000
+#include <alpha/pci/pci_up1000.h>
+#endif
+
+int	irongate_match(struct device *, void *, void *);
+void	irongate_attach(struct device *, struct device *, void *);
+
+struct cfattach irongate_ca = {
+	sizeof(struct irongate_softc), irongate_match, irongate_attach,
+};
+
+int	irongate_print(void *, const char *pnp);
+
+struct cfdriver irongate_cd = {
+	NULL, "irongate", DV_DULL,
+};
+
+/* There can be only one. */
+struct irongate_config irongate_configuration;
+int	irongate_found;
+
+#if 0
+int	irongate_bus_get_window(int, int,
+	    struct alpha_bus_space_translation *);
+#endif
+
+/*
+ * Set up the chipset's function pointers.
+ */
+void
+irongate_init(struct irongate_config *icp, int mallocsafe)
+{
+	pcitag_t tag;
+	pcireg_t reg;
+
+	icp->ic_mallocsafe = mallocsafe;
+
+	/*
+	 * Set up PCI configuration space; we can only read the
+	 * revision info through configuration space.
+	 */
+	irongate_pci_init(&icp->ic_pc, icp);
+#if 0
+	alpha_pci_chipset = &icp->ic_pc;
+#endif
+
+	tag = pci_make_tag(&icp->ic_pc, 0, IRONGATE_PCIHOST_DEV, 0);
+
+	/* Read the revision. */
+	reg = irongate_conf_read0(icp, tag, PCI_CLASS_REG);
+	icp->ic_rev = PCI_REVISION(reg);
+
+	if (icp->ic_initted == 0) {
+		/* Don't do these twice, since they set up extents. */
+		icp->ic_iot = irongate_bus_io_init(icp);
+		icp->ic_memt = irongate_bus_mem_init(icp);
+
+#if 0
+		/* Only one each PCI I/O and MEM window. */
+		alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_IO] = 1;
+		alpha_bus_window_count[ALPHA_BUS_TYPE_PCI_MEM] = 1;
+		
+		alpha_bus_get_window = irongate_bus_get_window;
+#endif
+	}
+
+	icp->ic_initted = 1;
+}
+
+int
+irongate_match(struct device *parent, void *match, void *aux)
+{
+	struct mainbus_attach_args *ma = aux;
+
+	/* Make sure we're looking for an Irongate. */
+	if (strcmp(ma->ma_name, irongate_cd.cd_name) != 0)
+		return (0);
+
+	if (irongate_found)
+		return (0);
+
+	return (1);
+}
+
+void
+irongate_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct irongate_softc *sc = (void *) self;
+	struct irongate_config *icp;
+	struct pcibus_attach_args pba;
+
+	/* Note that we've attached the chipset; can't have 2 Irongates. */
+	irongate_found = 1;
+
+	/*
+	 * Set up the chipset's info; done once at console init time
+	 * (maybe), but we must do it here as well to take care of things
+	 * that need to use memory allocation.
+	 */
+	icp = sc->sc_icp = &irongate_configuration;
+	irongate_init(icp, 1);
+
+	printf(": AMD 751 Core Logic + AGP Chipset, rev. %d\n", icp->ic_rev);
+
+	irongate_dma_init(icp);
+
+	/*
+	 * Do PCI memory initialization that needs to be deferred until
+	 * malloc is safe.
+	 */
+	irongate_bus_mem_init2(icp->ic_memt, icp);
+
+	switch (cputype) {
+#ifdef API_UP1000
+	case ST_API_NAUTILUS:
+		pci_up1000_pickintr(icp);
+		break;
+#endif
+
+	default:
+		panic("irongate_attach: shouldn't be here, really...");
+	}
+
+	pba.pba_busname = "pci";
+	pba.pba_iot = icp->ic_iot;
+	pba.pba_memt = icp->ic_memt;
+	pba.pba_dmat =
+	    alphabus_dma_get_tag(&icp->ic_dmat_pci, ALPHA_BUS_PCI);
+	pba.pba_pc = &icp->ic_pc;
+	pba.pba_bus = 0;
+#ifdef notyet
+	pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED |
+	    PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY;
+#endif
+	(void) config_found(self, &pba, irongate_print);
+}
+
+int
+irongate_print(void *aux, const char *pnp)
+{
+	struct pcibus_attach_args *pba = aux;
+
+	/* Only PCIs can attach to Irongates; easy. */
+	if (pnp != NULL)
+		printf("%s at %s", pba->pba_busname, pnp);
+	printf(" bus %d", pba->pba_bus);
+	return (UNCONF);
+}
+
+#if 0
+int
+irongate_bus_get_window(int type, int window,
+    struct alpha_bus_space_translation *abst)
+{
+	struct irongate_config *icp = &irongate_configuration;
+	bus_space_tag_t st;
+	int error;
+
+	switch (type) {
+	case ALPHA_BUS_TYPE_PCI_IO:
+		st = &icp->ic_iot;
+		break;
+
+	case ALPHA_BUS_TYPE_PCI_MEM:
+		st = &icp->ic_memt;
+		break;
+
+	default:
+		panic("irongate_bus_get_window");
+	}
+
+	error = alpha_bus_space_get_window(st, window, abst);
+	if (error)
+		return (error);
+
+	abst->abst_sys_start = IRONGATE_PHYSADDR(abst->abst_sys_start);
+	abst->abst_sys_end = IRONGATE_PHYSADDR(abst->abst_sys_end);
+
+	return (0);
+}
+#endif
\ No newline at end of file