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authorDavid S. Miller <davem@davemloft.net>2008-09-01 19:31:16 -0700
committerDavid S. Miller <davem@davemloft.net>2008-09-02 00:31:11 -0700
commitcdb3592a20b41377a28a0737dc9af95e53024470 (patch)
tree378d6001731b78e9c8bcb15d642dc34a18e887f7 /arch/sparc64
parente822358ac24550d889895d5866797ae8c9b188c2 (diff)
sparc64: Move reboot handling into seperate file and kill power reg programming.
We should always use prom_power_off(). Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64')
-rw-r--r--arch/sparc64/kernel/Makefile2
-rw-r--r--arch/sparc64/kernel/power.c37
-rw-r--r--arch/sparc64/kernel/process.c33
-rw-r--r--arch/sparc64/kernel/reboot.c56
4 files changed, 57 insertions, 71 deletions
diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile
index 928aa7c8058..fb02807167e 100644
--- a/arch/sparc64/kernel/Makefile
+++ b/arch/sparc64/kernel/Makefile
@@ -7,7 +7,7 @@ EXTRA_CFLAGS := -Werror
extra-y := head.o init_task.o vmlinux.lds
-obj-y := process.o setup.o cpu.o idprom.o \
+obj-y := process.o setup.o cpu.o idprom.o reboot.o \
traps.o auxio.o una_asm.o sysfs.o iommu.o \
irq.o ptrace.o time.o sys_sparc.o signal.o \
unaligned.o central.o starfire.o \
diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c
index 7559ad395a3..076cad7f975 100644
--- a/arch/sparc64/kernel/power.c
+++ b/arch/sparc64/kernel/power.c
@@ -7,21 +7,11 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
-#include <linux/pm.h>
#include <linux/reboot.h>
#include <linux/of_device.h>
-#include <asm/auxio.h>
#include <asm/prom.h>
#include <asm/io.h>
-#include <asm/sstate.h>
-#include <asm/reboot.h>
-
-/*
- * sysctl - toggle power-off restriction for serial console
- * systems in machine_power_off()
- */
-int scons_pwroff = 1;
static void __iomem *power_reg;
@@ -33,31 +23,6 @@ static irqreturn_t power_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static void (*poweroff_method)(void) = machine_alt_power_off;
-
-void machine_power_off(void)
-{
- sstate_poweroff();
- if (strcmp(of_console_device->type, "serial") || scons_pwroff) {
- if (power_reg) {
- /* Both register bits seem to have the
- * same effect, so until I figure out
- * what the difference is...
- */
- writel(AUXIO_PCIO_CPWR_OFF | AUXIO_PCIO_SPWR_OFF, power_reg);
- } else {
- if (poweroff_method != NULL) {
- poweroff_method();
- /* not reached */
- }
- }
- }
- machine_halt();
-}
-
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
static int __init has_button_interrupt(unsigned int irq, struct device_node *dp)
{
if (irq == 0xffffffff)
@@ -78,8 +43,6 @@ static int __devinit power_probe(struct of_device *op, const struct of_device_id
printk(KERN_INFO "%s: Control reg at %lx\n",
op->node->name, res->start);
- poweroff_method = machine_halt; /* able to use the standard halt */
-
if (has_button_interrupt(irq, op->node)) {
if (request_irq(irq,
power_handler, 0, "power", NULL) < 0)
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 15f4178592e..11bb6c4612d 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -22,7 +22,6 @@
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/user.h>
-#include <linux/reboot.h>
#include <linux/delay.h>
#include <linux/compat.h>
#include <linux/tick.h>
@@ -31,7 +30,6 @@
#include <linux/elfcore.h>
#include <linux/sysrq.h>
-#include <asm/oplib.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/page.h>
@@ -46,8 +44,6 @@
#include <asm/mmu_context.h>
#include <asm/unistd.h>
#include <asm/hypervisor.h>
-#include <asm/sstate.h>
-#include <asm/reboot.h>
#include <asm/syscalls.h>
#include <asm/irq_regs.h>
#include <asm/smp.h>
@@ -115,35 +111,6 @@ void cpu_idle(void)
}
}
-void machine_halt(void)
-{
- sstate_halt();
- prom_halt();
- panic("Halt failed!");
-}
-
-void machine_alt_power_off(void)
-{
- sstate_poweroff();
- prom_halt_power_off();
- panic("Power-off failed!");
-}
-
-void machine_restart(char * cmd)
-{
- char *p;
-
- sstate_reboot();
- p = strchr (reboot_command, '\n');
- if (p) *p = 0;
- if (cmd)
- prom_reboot(cmd);
- if (*reboot_command)
- prom_reboot(reboot_command);
- prom_reboot("");
- panic("Reboot failed!");
-}
-
#ifdef CONFIG_COMPAT
static void show_regwindow32(struct pt_regs *regs)
{
diff --git a/arch/sparc64/kernel/reboot.c b/arch/sparc64/kernel/reboot.c
new file mode 100644
index 00000000000..04dd34cbb87
--- /dev/null
+++ b/arch/sparc64/kernel/reboot.c
@@ -0,0 +1,56 @@
+/* reboot.c: reboot/shutdown/halt/poweroff handling
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/module.h>
+#include <linux/pm.h>
+
+#include <asm/sstate.h>
+#include <asm/oplib.h>
+#include <asm/prom.h>
+
+/* sysctl - toggle power-off restriction for serial console
+ * systems in machine_power_off()
+ */
+int scons_pwroff = 1;
+
+/* This isn't actually used, it exists merely to satisfy the
+ * reference in kernel/sys.c
+ */
+void (*pm_power_off)(void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
+
+void machine_power_off(void)
+{
+ sstate_poweroff();
+ if (strcmp(of_console_device->type, "serial") || scons_pwroff)
+ prom_halt_power_off();
+
+ prom_halt();
+}
+
+void machine_halt(void)
+{
+ sstate_halt();
+ prom_halt();
+ panic("Halt failed!");
+}
+
+void machine_restart(char *cmd)
+{
+ char *p;
+
+ sstate_reboot();
+ p = strchr(reboot_command, '\n');
+ if (p)
+ *p = 0;
+ if (cmd)
+ prom_reboot(cmd);
+ if (*reboot_command)
+ prom_reboot(reboot_command);
+ prom_reboot("");
+ panic("Reboot failed!");
+}
+