[PATCH 1/2] net: fec_imx: mask mii register reads correctly
Sascha Hauer
s.hauer at pengutronix.de
Wed May 21 05:19:36 PDT 2014
mii registers are 16bit wide, so mask out the higher bits.
The higher bits confuse mii-tool.
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
drivers/net/fec_imx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/fec_imx.c b/drivers/net/fec_imx.c
index 72e689d..714f8f2 100644
--- a/drivers/net/fec_imx.c
+++ b/drivers/net/fec_imx.c
@@ -89,7 +89,7 @@ static int fec_miibus_read(struct mii_bus *bus, int phyAddr, int regAddr)
/*
* it's now safe to read the PHY's register
*/
- return readl(fec->regs + FEC_MII_DATA);
+ return readl(fec->regs + FEC_MII_DATA) & 0xffff;
}
static int fec_miibus_write(struct mii_bus *bus, int phyAddr,
--
2.0.0.rc0
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