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| author | David Gibson <david@gibson.dropbear.id.au> | 2007-05-08 12:59:31 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-05-08 14:47:33 +1000 |
| commit | d9b55a03611ff2e2e54fb4e1ad2648d5eb870fa3 (patch) | |
| tree | 5704be539afcd6f29b1f5751476c8b4f53673bff /arch/powerpc/kernel/udbg.c | |
| parent | f6dfc80554b27da11dbb36ebae166b23ec3aa9ca (diff) | |
| download | kernel_samsung_smdk4412-d9b55a03611ff2e2e54fb4e1ad2648d5eb870fa3.tar.gz kernel_samsung_smdk4412-d9b55a03611ff2e2e54fb4e1ad2648d5eb870fa3.tar.bz2 kernel_samsung_smdk4412-d9b55a03611ff2e2e54fb4e1ad2648d5eb870fa3.zip | |
[POWERPC] Early serial debug support for PPC44x
This adds support for early serial debugging via the built in
port on IBM/AMCC PowerPC 44x CPUs. It uses a bolted TLB entry in
address space 1 for the UART's mapping, allowing robust debugging both
before and after the initialization of the MMU.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/udbg.c')
| -rw-r--r-- | arch/powerpc/kernel/udbg.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c index 7e0971868fc..7ef97ea8b3e 100644 --- a/arch/powerpc/kernel/udbg.c +++ b/arch/powerpc/kernel/udbg.c @@ -51,6 +51,9 @@ void __init udbg_early_init(void) udbg_init_pas_realmode(); #elif defined(CONFIG_BOOTX_TEXT) udbg_init_btext(); +#elif defined(CONFIG_PPC_EARLY_DEBUG_44x) + /* PPC44x debug */ + udbg_init_44x_as1(); #endif } |