diff options
| author | Oliver O'Halloran <oohall@gmail.com> | 2016-07-01 00:34:37 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-05 23:58:54 +1000 |
| commit | 656ad58ef19e2a763fa5c938b20ae0f6b8d67242 (patch) | |
| tree | a7a4cd26f2a0c5e560eb228864bd75c8784afb2f /arch/powerpc/boot/ops.h | |
| parent | faf7882962e78a4c8ebb846f4520c858ee184dca (diff) | |
powerpc/boot: Add OPAL console to epapr wrappers
This patch adds an OPAL console backend to the powerpc boot wrapper so
that decompression failures inside the wrapper can be reported to the
user. This is important since it typically indicates data corruption in
the firmware and other nasty things.
Currently this only works when building a little endian kernel. When
compiling a 64 bit BE kernel the wrapper is always build 32 bit to be
compatible with some 32 bit firmwares. BE support will be added at a
later date. Another limitation of this is that only the "raw" type of
OPAL console is supported, however machines that provide a hvsi console
also provide a raw console so this is not an issue in practice.
Actually-written-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
[mpe: Move #ifdef __powerpc64__ to avoid warnings on 32-bit]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/boot/ops.h')
| -rw-r--r-- | arch/powerpc/boot/ops.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h index 5e75e1c5518e..e19b64ef977a 100644 --- a/arch/powerpc/boot/ops.h +++ b/arch/powerpc/boot/ops.h @@ -89,6 +89,7 @@ int mpsc_console_init(void *devp, struct serial_console_data *scdp); int cpm_console_init(void *devp, struct serial_console_data *scdp); int mpc5200_psc_console_init(void *devp, struct serial_console_data *scdp); int uartlite_console_init(void *devp, struct serial_console_data *scdp); +int opal_console_init(void *devp, struct serial_console_data *scdp); void *simple_alloc_init(char *base, unsigned long heap_size, unsigned long granularity, unsigned long max_allocs); extern void flush_cache(void *, unsigned long); |