Add "machine poweroff" command on luna88k bootloader.

ok miod@

3 files changed, 63 insertions, 2 deletions

diff --git a/sys/arch/luna88k/stand/boot/Makefile b/sys/arch/luna88k/stand/boot/Makefile
index 15b0569aff2..8d9033fc595 100644
--- a/sys/arch/luna88k/stand/boot/Makefile
+++ b/sys/arch/luna88k/stand/boot/Makefile
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile,v 1.17 2023/02/24 23:36:11 aoyama Exp $
+#	$OpenBSD: Makefile,v 1.18 2023/03/13 11:59:39 aoyama Exp $
 #	$NetBSD: Makefile,v 1.9 2013/01/22 15:48:40 tsutsui Exp $
 #	@(#)Makefile	8.2 (Berkeley) 8/15/93
 
@@ -36,6 +36,7 @@ SRCS+=	sio.c
 SRCS+=	bmc.c bmd.c font.c kbd.c
 SRCS+=	sc.c sd.c
 SRCS+=	ufs_disksubr.c
+SRCS+=	cmd_luna88k.c
 SRCS+=	logo.c
 
 # netboot support
diff --git a/sys/arch/luna88k/stand/boot/cmd_luna88k.c b/sys/arch/luna88k/stand/boot/cmd_luna88k.c
new file mode 100644
index 00000000000..08e49650e3a
--- /dev/null
+++ b/sys/arch/luna88k/stand/boot/cmd_luna88k.c
@@ -0,0 +1,58 @@
+/*	$OpenBSD: cmd_luna88k.c,v 1.1 2023/03/13 11:59:39 aoyama Exp $	*/
+/*
+ * Copyright (c) 2023 Kenji Aoyama
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <machine/board.h>
+
+#include <luna88k/stand/boot/samachdep.h>
+#include <stand/boot/cmd.h>
+
+static int Xpoweroff(void);
+
+const struct cmd_table cmd_machine[] = {
+	{ "poweroff",	CMDT_CMD, Xpoweroff },
+	{ NULL, 0 }
+};
+
+struct pio {
+	volatile u_int8_t portA;
+	volatile unsigned : 24;
+	volatile u_int8_t portB;
+	volatile unsigned : 24;
+	volatile u_int8_t portC;
+	volatile unsigned : 24;
+	volatile u_int8_t cntrl;
+	volatile unsigned : 24;
+};
+
+#define	PIO1_POWER 0x04
+#define PIO1_DISABLE 0x00
+
+static int
+Xpoweroff(void)
+{
+	struct pio *p1 = (struct pio *)OBIO_PIO1_BASE;
+
+	printf("attempting to power down...\n");
+
+	p1->cntrl = (PIO1_POWER << 1) | PIO1_DISABLE;
+	*(volatile u_int8_t *)&p1->portC;
+
+	DELAY(1000000);	/* wait for a while */
+
+	return 0;
+}
diff --git a/sys/arch/luna88k/stand/boot/libsa.h b/sys/arch/luna88k/stand/boot/libsa.h
index 9a3de988f1b..11168efb570 100644
--- a/sys/arch/luna88k/stand/boot/libsa.h
+++ b/sys/arch/luna88k/stand/boot/libsa.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: libsa.h,v 1.2 2023/02/23 19:48:22 miod Exp $	*/
+/*	$OpenBSD: libsa.h,v 1.3 2023/03/13 11:59:39 aoyama Exp $	*/
 
 /* public domain */
 
@@ -7,3 +7,5 @@
 void devboot(dev_t, char *);
 void machdep(void);
 void run_loadfile(uint64_t *, int);
+
+#define	MACHINE_CMD	cmd_machine	/* we have luna88k-specific commands */