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| author | Greg Ungerer <gerg@uclinux.org> | 2012-02-19 16:47:24 +1000 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2012-03-05 10:42:28 +1000 |
| commit | ae909ea4ad2431e085e6cc96446fbc1c1ae88498 (patch) | |
| tree | 6f2d26d23d5a66f89cfdc864afe31ead880a6ae0 /arch/m68k/platform/coldfire/reset.c | |
| parent | 645e5333ec9088da08a1db619561de9c93c70634 (diff) | |
| download | linux-ae909ea4ad2431e085e6cc96446fbc1c1ae88498.tar.gz linux-ae909ea4ad2431e085e6cc96446fbc1c1ae88498.tar.bz2 linux-ae909ea4ad2431e085e6cc96446fbc1c1ae88498.zip | |
m68knommu: factor more common ColdFire cpu reset code
Most of the more modern ColdFire cores use the same code to reset the CPU
(but it is different to most of the earlier cores). Currently that is
duplicated in each of the sub-arch files. Pull out this common code and
out a single copy of it with the other common reset code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/platform/coldfire/reset.c')
| -rw-r--r-- | arch/m68k/platform/coldfire/reset.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/m68k/platform/coldfire/reset.c b/arch/m68k/platform/coldfire/reset.c index 5ed78d3546d2..933e54eacc69 100644 --- a/arch/m68k/platform/coldfire/reset.c +++ b/arch/m68k/platform/coldfire/reset.c @@ -15,7 +15,15 @@ #include <asm/coldfire.h> #include <asm/mcfsim.h> -void mcf_cpu_reset(void) +/* + * There are 2 common methods amongst the ColdFure parts for reseting + * the CPU. But there are couple of exceptions, the 5272 and the 547x + * have something completely special to them, and we let their specific + * subarch code handle them. + */ + +#ifdef MCFSIM_SYPCR +static void mcf_cpu_reset(void) { local_irq_disable(); /* Set watchdog to soft reset, and enabled */ @@ -23,6 +31,15 @@ void mcf_cpu_reset(void) for (;;) /* wait for watchdog to timeout */; } +#endif + +#ifdef MCF_RCR +static void mcf_cpu_reset(void) +{ + local_irq_disable(); + __raw_writeb(MCF_RCR_SWRESET, MCF_RCR); +} +#endif static int __init mcf_setup_reset(void) { |