diff --git a/conf/mips-yeeloong.rmk b/conf/mips-yeeloong.rmk
index 91a2283e8..001bae966 100644
--- a/conf/mips-yeeloong.rmk
+++ b/conf/mips-yeeloong.rmk
@@ -98,6 +98,18 @@ linux_mod_CFLAGS = $(COMMON_CFLAGS)
linux_mod_ASFLAGS = $(COMMON_ASFLAGS)
linux_mod_LDFLAGS = $(COMMON_LDFLAGS)
+# For halt.mod.
+pkglib_MODULES += halt.mod
+halt_mod_SOURCES = commands/halt.c
+halt_mod_CFLAGS = $(COMMON_CFLAGS)
+halt_mod_LDFLAGS = $(COMMON_LDFLAGS)
+
+# For reboot.mod.
+pkglib_MODULES += reboot.mod
+reboot_mod_SOURCES = commands/reboot.c
+reboot_mod_CFLAGS = $(COMMON_CFLAGS)
+reboot_mod_LDFLAGS = $(COMMON_LDFLAGS)
+
sbin_SCRIPTS += grub-install
grub_install_SOURCES = util/grub-install.in
diff --git a/include/grub/mips/loongson.h b/include/grub/mips/loongson.h
index 2c69e6c3d..c2aa276a2 100644
--- a/include/grub/mips/loongson.h
+++ b/include/grub/mips/loongson.h
@@ -68,4 +68,7 @@
#define GRUB_CPU_LOONGSON_ROM_DELAY_OFFSET 2
#define GRUB_CPU_LOONGSON_ROM_DELAY_MASK 0x1f
+#define GRUB_CPU_LOONGSON_GPIOCFG 0xbfe00120
+#define GRUB_CPU_LOONGSON_SHUTDOWN_GPIO 1
+
#endif
diff --git a/include/grub/mips/yeeloong/ec.h b/include/grub/mips/yeeloong/ec.h
new file mode 100644
index 000000000..62d1d33d9
--- /dev/null
+++ b/include/grub/mips/yeeloong/ec.h
@@ -0,0 +1,41 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2010 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see .
+ */
+
+#ifndef GRUB_EC_MACHINE_HEADER
+#define GRUB_EC_MACHINE_HEADER 1
+
+#define GRUB_MACHINE_EC_MAGIC_PORT1 0x381
+#define GRUB_MACHINE_EC_MAGIC_PORT2 0x382
+#define GRUB_MACHINE_EC_DATA_PORT 0x383
+
+#define GRUB_MACHINE_EC_MAGIC_VAL1 0xf4
+#define GRUB_MACHINE_EC_MAGIC_VAL2 0xec
+
+#define GRUB_MACHINE_EC_COMMAND_REBOOT 1
+
+static inline void
+grub_write_ec (grub_uint8_t value)
+{
+ grub_outb (GRUB_MACHINE_EC_MAGIC_VAL1,
+ GRUB_MACHINE_PCI_IO_BASE + GRUB_MACHINE_EC_MAGIC_PORT1);
+ grub_outb (GRUB_MACHINE_EC_MAGIC_VAL2,
+ GRUB_MACHINE_PCI_IO_BASE + GRUB_MACHINE_EC_MAGIC_PORT2);
+ grub_outb (value, GRUB_MACHINE_PCI_IO_BASE + GRUB_MACHINE_EC_DATA_PORT);
+}
+
+#endif
diff --git a/include/grub/misc.h b/include/grub/misc.h
index dcbafba87..1a2105549 100644
--- a/include/grub/misc.h
+++ b/include/grub/misc.h
@@ -298,9 +298,9 @@ void EXPORT_FUNC (grub_reboot) (void);
#ifdef GRUB_MACHINE_PCBIOS
/* Halt the system, using APM if possible. If NO_APM is true, don't
* use APM even if it is available. */
-void EXPORT_FUNC (grub_halt) (int no_apm);
+void EXPORT_FUNC (grub_halt) (int no_apm) __attribute__ ((noreturn));
#else
-void EXPORT_FUNC (grub_halt) (void);
+void EXPORT_FUNC (grub_halt) (void) __attribute__ ((noreturn));
#endif
#endif /* ! GRUB_MISC_HEADER */
diff --git a/kern/mips/yeeloong/init.c b/kern/mips/yeeloong/init.c
index f931cdb57..8a29be8eb 100644
--- a/kern/mips/yeeloong/init.c
+++ b/kern/mips/yeeloong/init.c
@@ -29,6 +29,8 @@
#include
#include
#include
+#include
+#include
extern void grub_video_sm712_init (void);
extern void grub_video_video_init (void);
@@ -165,20 +167,29 @@ grub_machine_fini (void)
}
void
-grub_exit (void)
+grub_halt (void)
{
+ grub_outb (grub_inb (GRUB_CPU_LOONGSON_GPIOCFG)
+ & ~GRUB_CPU_LOONGSON_SHUTDOWN_GPIO, GRUB_CPU_LOONGSON_GPIOCFG);
+
+ grub_printf ("Shutdown failed\n");
+ grub_refresh ();
while (1);
}
void
-grub_halt (void)
+grub_exit (void)
{
- while (1);
+ grub_halt ();
}
void
grub_reboot (void)
{
+ grub_write_ec (GRUB_MACHINE_EC_COMMAND_REBOOT);
+
+ grub_printf ("Reboot failed\n");
+ grub_refresh ();
while (1);
}