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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-19 17:44:59 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-20 16:09:54 +1000 |
| commit | daea1175a9f0f70eab5b33e2827d57ba8c686816 (patch) | |
| tree | aac48bd8bdfb9c7ee8e3e5058aea07e04e105da3 /arch/powerpc/kernel/udbg.c | |
| parent | 6e35d5dac0c83ebb616ff3b9c2d6155c9a9ccb86 (diff) | |
| download | linux-daea1175a9f0f70eab5b33e2827d57ba8c686816.tar.gz linux-daea1175a9f0f70eab5b33e2827d57ba8c686816.tar.bz2 linux-daea1175a9f0f70eab5b33e2827d57ba8c686816.zip | |
powerpc/powernv: Support for OPAL console
This adds a udbg and an hvc console backend for supporting a console
using the OPAL console interfaces.
On OPAL v1 we have hvc0 mapped to whatever console the system was
configured for (network or hvsi serial port) via the service
processor.
On OPAL v2 we have hvcN mapped to the Nth console provided by OPAL
which generally corresponds to:
hvc0 : network console (raw protocol)
hvc1 : serial port S1 (hvsi)
hvc2 : serial port S2 (hvsi)
Note: At this point, early debug console only works with OPAL v1
and shouldn't be enabled in a normal kernel.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/udbg.c')
| -rw-r--r-- | arch/powerpc/kernel/udbg.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c index 5b3e98e03158..35f948203ec5 100644 --- a/arch/powerpc/kernel/udbg.c +++ b/arch/powerpc/kernel/udbg.c @@ -69,6 +69,10 @@ void __init udbg_early_init(void) udbg_init_wsp(); #elif defined(CONFIG_PPC_EARLY_DEBUG_PS3GELIC) udbg_init_ps3gelic(); +#elif defined(CONFIG_PPC_EARLY_DEBUG_OPAL_RAW) + udbg_init_debug_opal_raw(); +#elif defined(CONFIG_PPC_EARLY_DEBUG_OPAL_HVSI) + udbg_init_debug_opal_hvsi(); #endif #ifdef CONFIG_PPC_EARLY_DEBUG |