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| author | Juergen Beisert <j.beisert@pengutronix.de> | 2008-07-05 10:02:50 +0200 |
|---|---|---|
| committer | Robert Schwebel <r.schwebel@pengutronix.de> | 2008-07-05 10:02:50 +0200 |
| commit | d0f349fbce2905607e0473d2358f97f48866e52c (patch) | |
| tree | 7b6892554648c4ab2eae4b29a054787399a49094 /arch/arm/mach-mx3/mx31ads.c | |
| parent | MXC: add io multiplexing functions for mx3 (diff) | |
| download | linux-d0f349fbce2905607e0473d2358f97f48866e52c.tar.xz linux-d0f349fbce2905607e0473d2358f97f48866e52c.zip | |
i.MXC family: Adding timer support
This patch adds timer support for the i.MX machine family. This code can
be used on the following machs:
- i.MX1 (tested)
- i.MX2 (i.MX21 (to be tested), i.MX27 (tested))
- i.MX3 (i.MX31 (tested))
TODO: It seems impossible to build a kernel for more than one CPU because the
timer do not follow the platform device rules. So it does only work if
timer 1 can be accessed on all CPUs at the same address.
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx3/mx31ads.c')
| -rw-r--r-- | arch/arm/mach-mx3/mx31ads.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/mach-mx3/mx31ads.c b/arch/arm/mach-mx3/mx31ads.c index 5addbb7f711c..eba3e0cd4283 100644 --- a/arch/arm/mach-mx3/mx31ads.c +++ b/arch/arm/mach-mx3/mx31ads.c @@ -26,6 +26,7 @@ #include <asm/hardware.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> +#include <asm/mach/time.h> #include <asm/memory.h> #include <asm/mach/map.h> #include <asm/arch/common.h> @@ -127,6 +128,16 @@ static void __init mxc_board_init(void) mxc_init_extuart(); } +static void __init mx31ads_timer_init(void) +{ + mxc_clocks_init(26000000); + mxc_timer_init("ipg_clk.0"); +} + +struct sys_timer mx31ads_timer = { + .init = mx31ads_timer_init, +}; + /* * The following uses standard kernel macros defined in arch.h in order to * initialize __mach_desc_MX31ADS data structure. @@ -139,5 +150,5 @@ MACHINE_START(MX31ADS, "Freescale MX31ADS") .map_io = mx31ads_map_io, .init_irq = mxc_init_irq, .init_machine = mxc_board_init, - .timer = &mxc_timer, + .timer = &mx31ads_timer, MACHINE_END |