[MIPS] txx9tmr clockevent/clocksource driver

Convert jmr3927_clock_event_device to more generic
txx9tmr_clock_event_device which supports one-shot mode.  The
txx9tmr_clock_event_device can be used for TX49 too if the cp0 timer
interrupt was not available.

Convert jmr3927_hpt_read to txx9_clocksource driver which does not
depends jiffies anymore.  The txx9_clocksource itself can be used for
TX49, but normally TX49 uses higher precision clocksource_mips.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 9 insertions, 8 deletions

diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
index c7470fba6180..0299595ce1c4 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
@@ -63,6 +63,7 @@
 #include <asm/processor.h>
 #include <asm/reboot.h>
 #include <asm/time.h>
+#include <asm/txx9tmr.h>
 #include <linux/bootmem.h>
 #include <linux/blkdev.h>
 #ifdef CONFIG_TOSHIBA_FPCIB0
@@ -93,7 +94,6 @@
 
 #define TOSHIBA_RBTX4927_SETUP_EFWFU       ( 1 <<  3 )
 #define TOSHIBA_RBTX4927_SETUP_SETUP       ( 1 <<  4 )
-#define TOSHIBA_RBTX4927_SETUP_TIME_INIT   ( 1 <<  5 )
 #define TOSHIBA_RBTX4927_SETUP_PCIBIOS     ( 1 <<  7 )
 #define TOSHIBA_RBTX4927_SETUP_PCI1        ( 1 <<  8 )
 #define TOSHIBA_RBTX4927_SETUP_PCI2        ( 1 <<  9 )
@@ -130,7 +130,6 @@ extern void toshiba_rbtx4927_power_off(void);
 
 int tx4927_using_backplane = 0;
 
-extern void gt64120_time_init(void);
 extern void toshiba_rbtx4927_irq_setup(void);
 
 char *prom_getcmdline(void);
@@ -721,6 +720,7 @@ void toshiba_rbtx4927_power_off(void)
 
 void __init toshiba_rbtx4927_setup(void)
 {
+        int i;
         u32 cp0_config;
         char *argptr;
 
@@ -764,6 +764,9 @@ void __init toshiba_rbtx4927_setup(void)
         _machine_halt = toshiba_rbtx4927_halt;
         pm_power_off = toshiba_rbtx4927_power_off;
 
+        for (i = 0; i < TX4927_NR_TMR; i++)
+                txx9_tmr_init(TX4927_TMR_REG(0) & 0xfffffffffULL);
+
 #ifdef CONFIG_PCI
 
         /* PCIC */
@@ -892,7 +895,6 @@ void __init toshiba_rbtx4927_setup(void)
 #ifdef CONFIG_SERIAL_TXX9
         {
                 extern int early_serial_txx9_setup(struct uart_port *port);
-                int i;
                 struct uart_port req;
                 for(i = 0; i < 2; i++) {
                         memset(&req, 0, sizeof(req));
@@ -937,12 +939,11 @@ void __init toshiba_rbtx4927_setup(void)
 void __init
 toshiba_rbtx4927_time_init(void)
 {
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "-\n");
-
         mips_hpt_frequency = tx4927_cpu_clock / 2;
-
-        TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "+\n");
-
+        if (tx4927_ccfgptr->ccfg & TX4927_CCFG_TINTDIS)
+                txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL,
+                                     TXX9_IRQ_BASE + 17,
+                                     50000000);
 }
 
 static int __init toshiba_rbtx4927_rtc_init(void)