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authorEric Miao <eric.miao@marvell.com>2008-06-24 13:38:50 +0800
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-12 21:52:40 +0100
commit159198862adad7109bb347bb30a620f67beac45f (patch)
tree2e440d22fa40b41f37922d9c6f2011e07a5e446b /drivers/net/smc91x.h
parentc4f0e76747e80578a8f7fddd82fd0ce8127bd2f8 (diff)
downloadlinux-159198862adad7109bb347bb30a620f67beac45f.tar.bz2
[NET] smc91x: prepare for SMC_IO_SHIFT to be a platform configurable variable
Now one can use the following code #define SMC_IO_SHIFT lp->io_shift to make SMC_IO_SHIFT a variable. This, however, will slightly increase the CPU overhead and have negative impact on the network performance. The tradeoff is, this can be specified in the smc91x platform data so that multiple boards support can be built in a single zImage. Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Nicolas Pitre <nico@cam.org> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/net/smc91x.h')
-rw-r--r--drivers/net/smc91x.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
index 8310f1a073d8..80fb80f39200 100644
--- a/drivers/net/smc91x.h
+++ b/drivers/net/smc91x.h
@@ -500,6 +500,9 @@ struct smc_local {
void __iomem *base;
void __iomem *datacs;
+ /* the low address lines on some platforms aren't connected... */
+ int io_shift;
+
struct smc91x_platdata cfg;
};