Commit 3fb1b6ad authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt

sh: CMT clockevent platform driver

SuperH CMT clockevent driver.

Both 16-bit and 32-bit CMT versions are supported, but only 32-bit
is tested. This driver contains support for both clockevents and
clocksources, but no unregistration is supported at this point.

Works fine as clock source and/or event in periodic or oneshot mode.
Tested on sh7722 and sh7723, but should work with any cpu/architecture.

This version is lacking clocksource and early platform driver support
for now - this to minimize the amount of dependencies.
Signed-off-by: default avatarMagnus Damm <damm@igel.co.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 07821d33
...@@ -397,6 +397,14 @@ source "arch/sh/boards/Kconfig" ...@@ -397,6 +397,14 @@ source "arch/sh/boards/Kconfig"
menu "Timer and clock configuration" menu "Timer and clock configuration"
config SH_TIMER_CMT
def_bool n
prompt "CMT support"
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
help
This enables build of the CMT system timer driver.
config SH_TMU config SH_TMU
def_bool y def_bool y
prompt "TMU timer support" prompt "TMU timer support"
......
...@@ -2,3 +2,4 @@ obj-$(CONFIG_ATMEL_TCB_CLKSRC) += tcb_clksrc.o ...@@ -2,3 +2,4 @@ obj-$(CONFIG_ATMEL_TCB_CLKSRC) += tcb_clksrc.o
obj-$(CONFIG_X86_CYCLONE_TIMER) += cyclone.o obj-$(CONFIG_X86_CYCLONE_TIMER) += cyclone.o
obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o
obj-$(CONFIG_SCx200HR_TIMER) += scx200_hrt.o obj-$(CONFIG_SCx200HR_TIMER) += scx200_hrt.o
obj-$(CONFIG_SH_TIMER_CMT) += sh_cmt.o
This diff is collapsed.
#ifndef __SH_CMT_H__
#define __SH_CMT_H__
struct sh_cmt_config {
char *name;
unsigned long channel_offset;
int timer_bit;
char *clk;
unsigned long clockevent_rating;
unsigned long clocksource_rating;
};
#endif /* __SH_CMT_H__ */
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