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smsc911x: allow mac address to be saved before device reset

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Some platforms (for example pcm037) do not have an EEPROM fitted,
instead storing their mac address somewhere else.  The bootloader
fetches this and configures the ethernet adapter before the kernel is
started.

This patch allows a platform to indicate to the driver via the
SMSC911X_SAVE_MAC_ADDRESS flag that the mac address has already been
configured via such a mechanism, and should be saved before resetting
the chip.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steve Glendinning
2009-01-27 06:51:12 +00:00
committed by David S. Miller
parent d23f028a4d
commit 31f4574774
2 changed files with 23 additions and 8 deletions
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include/linux/smsc911x.h
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@@ -45,5 +45,6 @@ struct smsc911x_platform_config {
#define SMSC911X_USE_32BIT (BIT(1))
#define SMSC911X_FORCE_INTERNAL_PHY (BIT(2))
#define SMSC911X_FORCE_EXTERNAL_PHY (BIT(3))
#define SMSC911X_SAVE_MAC_ADDRESS (BIT(4))
#endif /* __LINUX_SMSC911X_H__ */