phy/micrel: add ability to support 50MHz RMII clock on KZS8051RNL

Platform code can now set the MICREL_PHY_50MHZ_CLK bit of dev_flags in a fixup
routine (registered with phy_register_fixup_for_uid()), to make the KZS8051RNL
PHY work with 50MHz RMII reference clock.

Cc: David J. Choi <david.choi@micrel.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 0 deletions

diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
new file mode 100644
index 000000000000..dd8da342a991
--- /dev/null
+++ b/include/linux/micrel_phy.h
@@ -0,0 +1,16 @@
+#ifndef _MICREL_PHY_H
+#define _MICREL_PHY_H
+
+#define MICREL_PHY_ID_MASK      0x00fffff0
+
+#define PHY_ID_KSZ9021          0x00221611
+#define PHY_ID_KS8737           0x00221720
+#define PHY_ID_KS8041           0x00221510
+#define PHY_ID_KS8051           0x00221550
+/* both for ks8001 Rev. A/B, and for ks8721 Rev 3. */
+#define PHY_ID_KS8001           0x0022161A
+
+/* struct phy_device dev_flags definitions */
+#define MICREL_PHY_50MHZ_CLK    0x00000001
+
+#endif /* _MICREL_PHY_H */