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>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c
index 3de9f9ba2da6..0f5f7dd2a620 100644
--- a/arch/x86/pci/init.c
+++ b/arch/x86/pci/init.c
@@ -14,6 +14,9 @@ static __init int pci_access_init(void)
 #ifdef CONFIG_PCI_MMCONFIG
         pci_mmcfg_init(type);
 #endif
+#ifdef CONFIG_PCI_OLPC
+        pci_olpc_init();
+#endif
         if (raw_pci_ops)
                 return 0;
 #ifdef CONFIG_PCI_BIOS