[MIPS] Fix build errors related to wbflush.h on tx4927/tx4938.

TX49 CPUs have a SYNC instruction so that CONFIG_CPU_HAS_WB is no
longer needed.

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

3 files changed, 2 insertions, 19 deletions

diff --git a/arch/mips/tx4938/common/irq.c b/arch/mips/tx4938/common/irq.c
index b6024749b8f4..77fe2454f5b9 100644
--- a/arch/mips/tx4938/common/irq.c
+++ b/arch/mips/tx4938/common/irq.c
@@ -30,6 +30,7 @@
 #include <asm/irq.h>
 #include <asm/mipsregs.h>
 #include <asm/system.h>
+#include <asm/wbflush.h>
 #include <asm/tx4938/rbtx4938.h>
 
 /**********************************************************************************/
diff --git a/arch/mips/tx4938/common/setup.c b/arch/mips/tx4938/common/setup.c
index 71859c4fee84..f415a1f18fba 100644
--- a/arch/mips/tx4938/common/setup.c
+++ b/arch/mips/tx4938/common/setup.c
@@ -41,29 +41,10 @@ void __init tx4938_setup(void);
 void __init tx4938_time_init(void);
 void dump_cp0(char *key);
 
-void (*__wbflush) (void);
-
-static void
-tx4938_write_buffer_flush(void)
-{
-        mmiowb();
-
-        __asm__ __volatile__(
-                ".set   push\n\t"
-                ".set   noreorder\n\t"
-                "lw     $0,%0\n\t"
-                "nop\n\t"
-                ".set   pop"
-                : /* no output */
-                : "m" (*(int *)KSEG1)
-                : "memory");
-}
-
 void __init
 plat_mem_setup(void)
 {
         board_time_init = tx4938_time_init;
-        __wbflush = tx4938_write_buffer_flush;
         toshiba_rbtx4938_setup();
 }
 
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/irq.c b/arch/mips/tx4938/toshiba_rbtx4938/irq.c
index bbb3390e98f7..102e473c10a2 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/irq.c
+++ b/arch/mips/tx4938/toshiba_rbtx4938/irq.c
@@ -83,6 +83,7 @@ IRQ  Device
 #include <asm/processor.h>
 #include <asm/reboot.h>
 #include <asm/time.h>
+#include <asm/wbflush.h>
 #include <linux/bootmem.h>
 #include <asm/tx4938/rbtx4938.h>