GEODE: use symbolic constant in cs5536 reboot fixup

Simple cosmetic update for the cs5536 reboot fixup; define the MSR that's used
for rebooting in geode.h, and use the define.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/reboot_fixups_32.c

@@ -12,6 +12,7 @@
 #include <linux/interrupt.h>
 #include <asm/reboot_fixups.h>
 #include <asm/msr.h>
+#include <asm/geode.h>
 
 static void cs5530a_warm_reset(struct pci_dev *dev)
 {
@@ -24,11 +25,8 @@ static void cs5530a_warm_reset(struct pci_dev *dev)
 
 static void cs5536_warm_reset(struct pci_dev *dev)
 {
-	/*
-	 * 6.6.2.12 Soft Reset (DIVIL_SOFT_RESET)
-	 * writing 1 to the LSB of this MSR causes a hard reset.
-	 */
-	wrmsrl(0x51400017, 1ULL);
+	/* writing 1 to the LSB of this MSR causes a hard reset */
+	wrmsrl(MSR_DIVIL_SOFT_RESET, 1ULL);
 	udelay(50); /* shouldn't get here but be safe and spin a while */
 }
 

include/asm-x86/geode.h

@@ -38,6 +38,8 @@ extern int geode_get_dev_base(unsigned int dev);
 #define MSR_LBAR_ACPI		0x5140000E
 #define MSR_LBAR_PMS		0x5140000F
 
+#define MSR_DIVIL_SOFT_RESET	0x51400017
+
 #define MSR_PIC_YSEL_LOW	0x51400020
 #define MSR_PIC_YSEL_HIGH	0x51400021
 #define MSR_PIC_ZSEL_LOW	0x51400022