Add suppport for ISA and ISA interrupts to make the ATA

controller in the VIA southbridge functional in the CDS
(Configurable Development System) for MPC85XX.
The embedded USB controllers look operational but the
interrupt steering is still wrong.

1 files changed, 100 insertions, 0 deletions

diff --git a/sys/powerpc/mpc85xx/isa.c b/sys/powerpc/mpc85xx/isa.c
new file mode 100644
index 0000000..5b996ca
--- /dev/null
+++ b/sys/powerpc/mpc85xx/isa.c
@@ -0,0 +1,100 @@
+/*-
+ * Copyright (c) 2009 Marcel Moolenaar
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/malloc.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
+
+#include <machine/resource.h>
+
+#include <isa/isareg.h>
+#include <isa/isavar.h>
+#include <isa/isa_common.h>
+
+void
+isa_init(device_t dev)
+{
+}
+
+struct resource *
+isa_alloc_resource(device_t bus, device_t child, int type, int *rid,
+    u_long start, u_long end, u_long count, u_int flags)
+{
+	struct isa_device* idev = DEVTOISA(child);
+	struct resource_list *rl = &idev->id_resources;
+	int isdefault, passthrough, rids;
+
+	isdefault = (start == 0UL && end == ~0UL) ? 1 : 0;
+	passthrough = (device_get_parent(child) != bus) ? 1 : 0;
+
+	if (!passthrough && !isdefault &&
+	    resource_list_find(rl, type, *rid) == NULL) {
+		switch (type) {
+		case SYS_RES_IOPORT:	rids = ISA_PNP_NPORT; break;
+		case SYS_RES_IRQ:	rids = ISA_PNP_NIRQ; break;
+		case SYS_RES_MEMORY:	rids = ISA_PNP_NMEM; break;
+		default:		rids = 0; break;
+		}
+		if (*rid < 0 || *rid >= rids)
+			return (NULL);
+
+		resource_list_add(rl, type, *rid, start, end, count);
+	}
+
+	return (resource_list_alloc(rl, bus, child, type, rid, start, end,
+	    count, flags));
+}
+
+int
+isa_release_resource(device_t bus, device_t child, int type, int rid,
+    struct resource *r)
+{
+	struct isa_device* idev = DEVTOISA(child);
+	struct resource_list *rl = &idev->id_resources;
+
+	return (resource_list_release(rl, bus, child, type, rid, r));
+}
+
+int
+isa_setup_intr(device_t bus, device_t child, struct resource *r, int flags,
+    driver_filter_t filter, void (*ihand)(void *), void *arg, void **cookiep)
+{
+
+	return (BUS_SETUP_INTR(device_get_parent(bus), child, r, flags,
+	    filter, ihand, arg, cookiep));
+}
+
+int
+isa_teardown_intr(device_t bus, device_t child, struct resource *r,
+    void *cookie)
+{
+
+	return (BUS_TEARDOWN_INTR(device_get_parent(bus), child, r, cookie));
+}