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author | David Gibson <david@gibson.dropbear.id.au> | 2008-11-05 14:20:17 +0000 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-11-19 16:04:25 +1100 |
commit | d5e54913433fff89609adfc4b96fefcf807a9030 (patch) | |
tree | 6ab66827c98837a86a2b4f0e77732c43238db5a0 /arch/powerpc/include/asm/spinlock.h | |
parent | 8c6531868d4917adbd363030f28a734b76c7471a (diff) | |
download | linux-d5e54913433fff89609adfc4b96fefcf807a9030.tar.gz |
powerpc: udbg-based backend for hvc_console
This adds a new backend for the hvc console based on the low-level udbg callbacks. This effectively implements a working runtime console in terms of the simple udbg primitives. This is kind of a hack - since udbg isn't something you really want to be using routinely - but it's really useful during bringup. This can be used to quickly implement a userspace-usable console while you're working on a proper driver for whatever console I/O device the hardware has. Or, it can be used to avoid writing a full blown tty/console driver entirely for quick-and-dirty I/O hardware that will later be replaced by something else. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/include/asm/spinlock.h')
0 files changed, 0 insertions, 0 deletions