ssb: Fix PCMCIA lowlevel register access

This fixes lowlevel register access for PCMCIA based devices.

The patch also adds a temporary workaround for the device mac address.
It simply adds generation of a random address. The real SPROM extraction
will follow in another patch.
The temporary workaround will be removed then, but for now it's OK.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index 0eaa98424f0a..cacbae531945 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -231,7 +231,8 @@ struct ssb_bus {
         struct ssb_device *mapped_device;
         /* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */
         u8 mapped_pcmcia_seg;
-        /* Lock for core and segment switching. */
+        /* Lock for core and segment switching.
+         * On PCMCIA-host busses this is used to protect the whole MMIO access. */
         spinlock_t bar_lock;
 
         /* The bus this backplane is running on. */