Revert "net/ibm/emac: wrong bit is used for STA control"

This reverts commit 624ca9c33c8a853a4a589836e310d776620f4ab9.

This commit is completely bogus. The STACR register has two formats, old
and new, depending on the version of the IP block used. There's a pair of
device-tree properties that can be used to specify the format used:

	has-inverted-stacr-oc
	has-new-stacr-staopc

What this commit did was to change the bit definition used with the old
parts to match the new parts. This of course breaks the driver on all
the old ones.

Instead, the author should have set the appropriate properties in the
device-tree for the variant used on his board.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ibm/emac/emac.h b/drivers/net/ethernet/ibm/emac/emac.h
index e2f80cca9bed432e88221d89d54fe337e09e16d0..0d2de6f676764d73729e859ecfcceaf0a1f47ac9 100644 (file)
--- a/drivers/net/ethernet/ibm/emac/emac.h
+++ b/drivers/net/ethernet/ibm/emac/emac.h
@@ -231,7 +231,7 @@ struct emac_regs {
 #define EMAC_STACR_PHYE                        0x00004000
 #define EMAC_STACR_STAC_MASK           0x00003000
 #define EMAC_STACR_STAC_READ           0x00001000
-#define EMAC_STACR_STAC_WRITE          0x00000800
+#define EMAC_STACR_STAC_WRITE          0x00002000
 #define EMAC_STACR_OPBC_MASK           0x00000C00
 #define EMAC_STACR_OPBC_50             0x00000000
 #define EMAC_STACR_OPBC_66             0x00000400