[U-Boot] [PATCH] Correct chip detect logic

[Yanjun Yang]

The lan91c96_detect_chip routine is not correct according
to the manual.

Signed-off-by: YanJun Yang <yangyj.ee at gmail.com>
---
 drivers/net/lan91c96.c |    2 +-
 drivers/net/lan91c96.h |    3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/lan91c96.c b/drivers/net/lan91c96.c
index bd6966e..2550aa2 100644
--- a/drivers/net/lan91c96.c
+++ b/drivers/net/lan91c96.c
@@ -780,7 +780,7 @@ static int lan91c96_detect_chip(struct eth_device *dev)
       u8 chip_id;
       int r;
       SMC_SELECT_BANK(dev, 3);
-       chip_id = SMC_inw(dev, 0xA) & LAN91C96_REV_REVID;
+       chip_id = (SMC_inw(dev, 0xA) & LAN91C96_REV_CHIPID) >>
LAN91C96_CHIPID_SHIFT;
       SMC_SELECT_BANK(dev, 0);
       for (r = 0; r < sizeof(supported_chips) / sizeof(struct id_type); r++)
               if (chip_id == supported_chips[r].id)
diff --git a/drivers/net/lan91c96.h b/drivers/net/lan91c96.h
index 6fbb0e3..609c92b 100644
--- a/drivers/net/lan91c96.h
+++ b/drivers/net/lan91c96.h
@@ -519,7 +519,8 @@ typedef unsigned long int           dword;
 ****************************************************************************
 */
 #define LAN91C96_REV_REVID        (0xFU << 0)
-#define LAN91C96_REV_CHIPID       (0xFU << 4)
+#define LAN91C96_CHIPID_SHIFT    4
+#define LAN91C96_REV_CHIPID       (0xFU << LAN91C96_CHIPID_SHIFT)

 /*
 ****************************************************************************
--
1.5.6.5