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| author |   Laurent Pinchart <laurentp@cse-semaphore.com> | 2008-04-10 17:02:38 +0200 |
|---|---|---|
| committer |   Kumar Gala <galak@kernel.crashing.org> | 2008-04-17 01:01:37 -0500 |
| commit | 872a15deed2f6c2dc14353a6109adde99cfee690 (patch) | |
| tree | 8095620d96d1eec45d0e59d541aa18246da2625f /arch/powerpc | |
| parent | [POWERPC] ep8248e: Reference SMC parameter RAM base in the device tree. (diff) | |
| download | linux-dev-872a15deed2f6c2dc14353a6109adde99cfee690.tar.xz linux-dev-872a15deed2f6c2dc14353a6109adde99cfee690.zip | |
[POWERPC] CPM2: Reset the CPM when early debugging is not enabled.
Similarly to what is done for PQ1-based platforms, this patch resets the
PQ2 Communication Processor Module in cpm2_reset() when early debugging is
not enabled. This helps avoiding conflicts when the boot loader configured
the CPM in an unexpected way.
Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/sysdev/cpm2.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/cpm2.c b/arch/powerpc/sysdev/cpm2.c index fa70ee31349e..4ab3f1f5a7c3 100644 --- a/arch/powerpc/sysdev/cpm2.c +++ b/arch/powerpc/sysdev/cpm2.c @@ -80,6 +80,12 @@ void __init cpm2_reset(void) /* Tell everyone where the comm processor resides. */ cpmp = &cpm2_immr->im_cpm; + +#ifndef CONFIG_PPC_EARLY_DEBUG_CPM + /* Reset the CPM. + */ + cpm_command(CPM_CR_RST, 0); +#endif } static DEFINE_SPINLOCK(cmd_lock); |