bsp:ls2k: add reboot and shutdown support

Author: Michael0066

bsp/ls2kdev/drivers/board.c

@@ -22,6 +22,9 @@
  */
 void rt_hw_cpu_reset(void)
 {
+    WDT_EN = 0x01;
+    WDT_TIMER = 0x01;
+    WDT_SET = 0x01;
     rt_kprintf("reboot system...\n");
     while (1);
 }
@@ -32,6 +35,8 @@ void rt_hw_cpu_reset(void)
  */
 void rt_hw_cpu_shutdown(void)
 {
+    PM1_STS &= 0xffffffff;
+    PM1_CNT = 0x3c00;
     rt_kprintf("shutdown...\n");
 
     while (1);

bsp/ls2kdev/drivers/board.h

@@ -12,13 +12,37 @@
 #define BOARD_H__
 
 #include <stdint.h>
+#include <rthw.h>
+#include "ls2k1000.h"
 
 extern unsigned char __bss_end;
 
 #define CPU_HZ              (1000 * 1000 * 1000) //QEMU 200*1000*1000
 #define RT_HW_HEAP_BEGIN    (void*)&__bss_end
 #define RT_HW_HEAP_END      (void*)(RT_HW_HEAP_BEGIN + 64 * 1024 * 1024)
 
+/*
+ * General PM Configuration Register
+ */
+#define PMCON_BASE			(APB_BASE | (0x7 << 12))
+
+/*
+ * Power Management1 Configuration Registers
+ */
+#define PM1_BASE			(PMCON_BASE + 0x0C)
+#define PM1_STS				HWREG32(PM1_BASE)
+#define PM1_EN				HWREG32(PM1_BASE + 0x04)
+#define PM1_CNT				HWREG32(PM1_BASE + 0x08)
+	
+/*
+ * Watch Dog Configuration Registers
+ */
+#define WDT_BASE			(PMCON_BASE + 0x30)
+#define WDT_EN				HWREG32(WDT_BASE)
+#define WDT_SET				HWREG32(WDT_BASE + 0x04)
+#define WDT_TIMER			HWREG32(WDT_BASE + 0x08)
+
+
 void rt_hw_board_init(void);
 
 #endif