---

yaml --- r: 335994 b: refs/heads/master c: f49f4ab h: refs/heads/master v: v3
git-mirror · Oct 30, 2012 · 41d7731 · 41d7731
1 parent 2269d74
commit 41d7731
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Showing 2 changed files with 15 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4cf7e71869268d5c9fa7e8005155aef94e140eb5
+refs/heads/master: f49f4ab95c301dbccad0efe85296d908b8ae7ad4
diff --git a/trunk/arch/x86/platform/ce4100/ce4100.c b/trunk/arch/x86/platform/ce4100/ce4100.c
@@ -27,6 +27,18 @@ static int ce4100_i8042_detect(void)
 	return 0;
 }
 
+/*
+ * The CE4100 platform has an internal 8051 Microcontroller which is
+ * responsible for signaling to the external Power Management Unit the
+ * intention to reset, reboot or power off the system. This 8051 device has
+ * its command register mapped at I/O port 0xcf9 and the value 0x4 is used
+ * to power off the system.
+ */
+static void ce4100_power_off(void)
+{
+	outb(0x4, 0xcf9);
+}
+
 #ifdef CONFIG_SERIAL_8250
 
 static unsigned int mem_serial_in(struct uart_port *p, int offset)
@@ -143,4 +155,6 @@ void __init x86_ce4100_early_setup(void)
 	x86_init.pci.init_irq = sdv_pci_init;
 	x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck;
 #endif
+
+	pm_power_off = ce4100_power_off;
 }