nds32/ag101: clean up for SoC related code

Remove unneccessary codes.
1. Clean up for cpu related code.
2. Clean up for timer related code.

Signed-off-by: Macpaul Lin <macpaul@andestech.com>

arch/nds32/cpu/n1213/ag101/cpu.c

@@ -45,10 +45,6 @@
  */
 int cleanup_before_linux(void)
 {
-#ifdef CONFIG_MMU
-	unsigned long i;
-#endif
-
 	disable_interrupts();
 
 #ifdef CONFIG_MMU
@@ -123,8 +119,8 @@ void icache_inval_range(unsigned long start, unsigned long end)
 
 void flush_cache(unsigned long addr, unsigned long size)
 {
-	dcache_flush_range(addr , addr + size);
-	icache_inval_range(addr , addr + size);
+	dcache_flush_range(addr, addr + size);
+	icache_inval_range(addr, addr + size);
 }
 
 void icache_enable(void)

arch/nds32/cpu/n1213/ag101/timer.c

@@ -33,7 +33,7 @@ static ulong lastdec;
 
 int timer_init(void)
 {
-	static struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE;
+	struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE;
 	unsigned int cr;
 
 	debug("%s()\n", __func__);
@@ -80,7 +80,7 @@ int timer_init(void)
  */
 void reset_timer_masked(void)
 {
-	static struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE;
+	struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE;
 
 	/* capure current decrementer value time */
 #ifdef CONFIG_FTTMR010_EXT_CLK
@@ -104,7 +104,7 @@ void reset_timer(void)
  */
 ulong get_timer_masked(void)
 {
-	static struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE;
+	struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE;
 
 	/* current tick value */
 #ifdef CONFIG_FTTMR010_EXT_CLK
@@ -160,7 +160,7 @@ void set_timer(ulong t)
 /* delay x useconds AND preserve advance timestamp value */
 void __udelay(unsigned long usec)
 {
-	static struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE;
+	struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE;
 
 #ifdef CONFIG_FTTMR010_EXT_CLK
 	long tmo = usec * (TIMER_CLOCK / 1000) / 1000;