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authorAndres Salomon <dilinger@queued.net>2008-04-29 00:59:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:07 -0700
commit3ef0e1f8cad0a851b3dbf91802b14af7dd780352 (patch)
tree805450fdb2c056e7ba61ac3c26529cccd09e952f /Documentation
parent2f9b12a31fcb738ea8c9eb0d4ddf906c6f1d696c (diff)
x86: olpc: add One Laptop Per Child architecture support
This adds support for OLPC XO hardware. Open Firmware on XOs don't contain the VSA, so it is necessary to emulate the PCI BARs in the kernel. This also adds functionality for running EC commands, and a CONFIG_OLPC. A number of OLPC drivers depend upon CONFIG_OLPC. olpc_ec_timeout is a hack to work around Embedded Controller bugs. [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: geode_has_vsa build fix] [akpm@linux-foundation.org: olpc_register_battery_callback doesn't exist] Signed-off-by: Andres Salomon <dilinger@debian.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <ak@suse.de> Cc: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e5f3d918316..5afc21b20a9 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1389,6 +1389,13 @@ and is between 256 and 4096 characters. It is defined in the file
nr_uarts= [SERIAL] maximum number of UARTs to be registered.
+ olpc_ec_timeout= [OLPC] ms delay when issuing EC commands
+ Rather than timing out after 20 ms if an EC
+ command is not properly ACKed, override the length
+ of the timeout. We have interrupts disabled while
+ waiting for the ACK, so if this is set too high
+ interrupts *may* be lost!
+
opl3= [HW,OSS]
Format: <io>