sh: remove old TMU driver

This patch removes the old TMU driver (CONFIG_SH_TMU/timer-tmu.c)

As replacement, select the sh_tmu driver with CONFIG_SH_TIMER_TMU
and configure timer channel using platform data.

If multiple TMU channels are enabled using platform data, use the
earlytimer parameter on the kernel command line to select channel.
For instance, use "earlytimer=sh_tmu.0" to select the first channel.

To verify which timer is being used, look at printouts or the timer
irq count in /proc/interrupts.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/Kconfig

@@ -473,16 +473,9 @@ source "arch/sh/boards/Kconfig"
 
 menu "Timer and clock configuration"
 
-config SH_TMU
-	bool "TMU timer support"
-	depends on CPU_SH3 || CPU_SH4
-	default y
-	help
-	  This enables the use of the TMU as the system timer.
-
 config SH_TIMER_TMU
 	bool "TMU timer driver"
-	depends on !SH_TMU && SYS_SUPPORTS_TMU
+	depends on SYS_SUPPORTS_TMU
 	default y
 	help
 	  This enables the build of the TMU timer driver.

arch/sh/include/asm/timer.h

@@ -18,7 +18,6 @@ struct sys_timer {
 	struct sys_timer_ops	*ops;
 };
 
-extern struct sys_timer tmu_timer;
 extern struct sys_timer *sys_timer;
 
 /* arch/sh/kernel/timers/timer.c */

arch/sh/kernel/timers/Makefile

@@ -3,5 +3,3 @@
 #
 
 obj-y	:= timer.o
-
-obj-$(CONFIG_SH_TMU)		+= timer-tmu.o