[MIPS] time: Add GT641xx timer0 clockevent driver

And make use of it for Cobalt.  A few others such as the Malta could make
use of it as well.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 3 insertions, 21 deletions

diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c
index d11bb1bc7b6b..dd23beb8604f 100644
--- a/arch/mips/cobalt/setup.c
+++ b/arch/mips/cobalt/setup.c
@@ -9,19 +9,17 @@
  * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
  *
  */
-#include <linux/interrupt.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
 #include <linux/pm.h>
 
 #include <asm/bootinfo.h>
-#include <asm/time.h>
-#include <asm/i8253.h>
-#include <asm/io.h>
 #include <asm/reboot.h>
 #include <asm/gt64120.h>
 
 #include <cobalt.h>
-#include <irq.h>
 
 extern void cobalt_machine_restart(char *command);
 extern void cobalt_machine_halt(void);
@@ -41,17 +39,6 @@ const char *get_system_type(void)
         return "MIPS Cobalt";
 }
 
-void __init plat_timer_setup(struct irqaction *irq)
-{
-        /* Load timer value for HZ (TCLK is 50MHz) */
-        GT_WRITE(GT_TC0_OFS, 50*1000*1000 / HZ);
-
-        /* Enable timer0 */
-        GT_WRITE(GT_TC_CONTROL_OFS, GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK);
-
-        setup_irq(GT641XX_TIMER0_IRQ, irq);
-}
-
 /*
  * Cobalt doesn't have PS/2 keyboard/mouse interfaces,
  * keyboard conntroller is never used.
@@ -84,11 +71,6 @@ static struct resource cobalt_reserved_resources[] = {
         },
 };
 
-void __init plat_time_init(void)
-{
-        setup_pit_timer();
-}
-
 void __init plat_mem_setup(void)
 {
         int i;