Move IP32 (O2) support into its own file.

From Rafal K. Boni.
2001-05-11 04:55:42 +00:00 · 2001-05-11 04:55:42 +00:00 · 07d7386b8f
parent acc9f8ef65
commit 07d7386b8f
1 changed files with 132 additions and 0 deletions
--- a/sys/arch/sgimips/sgimips/ip32.c
+++ b/sys/arch/sgimips/sgimips/ip32.c
@ -0,0 +1,132 @@
+/*	$NetBSD: ip32.c,v 1.3 2001/05/11 04:55:42 thorpej Exp $	*/
+
+/*
+ * Copyright (c) 2000 Soren S. Jorvang
+ * Copyright (c) 2001 Rafal K. Boni
+ * 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 for the
+ *          NetBSD Project.  See http://www.netbsd.org/ for
+ *          information about NetBSD.
+ * 4. 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.
+ */
+
+#include "opt_machtypes.h"
+
+#ifdef IP32
+#include <sys/param.h>
+#include <sys/proc.h> 
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+
+#include <machine/sysconf.h>
+#include <mips/locore.h>
+
+extern struct platform platform;
+
+void	ip32_init(void);
+void 	ip32_intr(u_int, u_int, u_int, u_int);
+
+void ip32_init(void)
+{
+	/* XXXrkb: enable watchdog timer, clear it */
+	*(volatile u_int32_t *)0xb400000c |= 0x200;
+	*(volatile u_int32_t *)0xb4000034 = 0;
+
+	platform.iointr = ip32_intr;
+
+	biomask = 0x7f00;
+	netmask = 0x7f00;
+	ttymask = 0x7f00;
+	clockmask = 0xff00;
+}
+
+void
+ip32_intr(status, cause, pc, ipending)
+	u_int32_t status;
+	u_int32_t cause;
+	u_int32_t pc;
+	u_int32_t ipending;
+{
+	int i;
+	unsigned long cycles;
+	struct clockframe cf;
+
+#if 0
+printf("crm: %llx %llx %llx %llx\n", *(volatile u_int64_t *)0xb4000010,
+				*(volatile u_int64_t *)0xb4000018,
+				*(volatile u_int64_t *)0xb4000020,
+				*(volatile u_int64_t *)0xb4000028);
+#endif
+
+#if 1
+	/* XXX soren Reset O2 watchdog timer */ 
+	*(volatile u_int32_t *)0xb4000034 = 0;
+#endif
+
+#if 1
+if ((*(volatile u_int32_t *)0xbf080004 & ~0x00100000) != 6)
+panic("pcierr: %x %x", *(volatile u_int32_t *)0xbf080004,
+    *(volatile u_int32_t *)0xbf080000);
+#endif
+
+	*(volatile u_int64_t *)0xbf310018 = 0xffffffff;
+	*(volatile u_int64_t *)0xb4000018 = 0x000000000000ffff;
+
+#if 1
+	if (ipending & 0x7800)
+		panic("interesting cpu_intr, pending 0x%x\n", ipending);
+#endif
+
+
+	if (ipending & MIPS_INT_MASK_5) {
+		cycles = mips3_cp0_count_read();
+		mips3_cp0_compare_write(cycles + 900000);	/* XXX */
+
+		cf.pc = pc;
+		cf.sr = status;
+
+		hardclock(&cf);
+
+		cause &= ~MIPS_INT_MASK_5;
+	}
+else
+	if (ipending & 0x7c00)
+		crime_intr(NULL);
+
+        for (i = 0; i < 5; i++) {
+                if (ipending & (MIPS_INT_MASK_0 << i))
+#if 0
+                        if (intrtab[i].func != NULL)
+                                if ((*intrtab[i].func)(intrtab[i].arg))
+#endif
+                                        cause &= ~(MIPS_INT_MASK_0 << i);
+        }
+
+	_splset((status & ~cause & MIPS_HARD_INT_MASK) | MIPS_SR_INT_IE);
+}
+
+#endif	/* IP32 */