[PATCH] m32r: mappi3 reboot support

Here is a patch to support a reboot function for M3A-2170(Mappi-III)
evaluation board.
Signed-off-by: NHayato Fujiwara <fujiwara@linux-m32r.org>
Signed-off-by: NHirokazu Takata <takata@linux-m32r.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

arch/m32r/kernel/process.c

@@ -116,6 +116,10 @@ void cpu_idle (void)
 
 void machine_restart(char *__unused)
 {
+#if defined(CONFIG_PLAT_MAPPI3)
+	outw(1, (unsigned long)PLD_REBOOT);
+#endif
+
 	printk("Please push reset button!\n");
 	while (1)
 		cpu_relax();

include/asm-m32r/mappi3/mappi3_pld.h

@@ -53,17 +53,15 @@
 /* Power Control of MMC and CF */
 #define PLD_CPCR		__reg16(PLD_BASE + 0x14000)
 
-
-/*==== ICU ====*/
+/* ICU */
 #define M32R_IRQ_PC104		(5)	/* INT4(PC/104) */
 #define M32R_IRQ_I2C		(28)	/* I2C-BUS */
 #define PLD_IRQ_CFIREQ		(6)	/* INT5 CFC Card Interrupt */
-#define  PLD_IRQ_CFC_INSERT   (7)  /* INT6 CFC Card Insert */
+#define PLD_IRQ_CFC_INSERT	(7)	/* INT6 CFC Card Insert & Eject */
 #define PLD_IRQ_IDEIREQ		(8)	/* INT7 IDE Interrupt */
 #define PLD_IRQ_MMCCARD		(43)	/* MMC Card Insert */
 #define PLD_IRQ_MMCIRQ		(44)	/* MMC Transfer Done */
 
-
 #if 0
 /* LED Control
  *
@@ -97,7 +95,6 @@
 #define PLD_CRC16ADATA		__reg16(PLD_BASE + 0x18008)
 #define PLD_CRC16AINDATA	__reg16(PLD_BASE + 0x1800a)
 
-
 #if 0
 /* RTC */
 #define PLD_RTCCR		__reg16(PLD_BASE + 0x1c000)
@@ -140,4 +137,7 @@
 
 #endif
 
+/* Reset Control */
+#define PLD_REBOOT		__reg16(PLD_BASE + 0x38000)
+
 #endif	/* _MAPPI3_PLD.H */