diff options
Diffstat (limited to 'drivers/net/fsl_mdio.c')
| -rw-r--r-- | drivers/net/fsl_mdio.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/fsl_mdio.c b/drivers/net/fsl_mdio.c index 8d09f5d..d6b181b 100644 --- a/drivers/net/fsl_mdio.c +++ b/drivers/net/fsl_mdio.c @@ -19,7 +19,8 @@ void tsec_local_mdio_write(struct tsec_mii_mng __iomem *phyregs, int port_addr, out_be32(&phyregs->miimadd, (port_addr << 8) | (regnum & 0x1f)); out_be32(&phyregs->miimcon, value); - asm("sync"); + /* Memory barrier */ + mb(); while ((in_be32(&phyregs->miimind) & MIIMIND_BUSY) && timeout--) ; @@ -37,11 +38,13 @@ int tsec_local_mdio_read(struct tsec_mii_mng __iomem *phyregs, int port_addr, /* Clear the command register, and wait */ out_be32(&phyregs->miimcom, 0); - asm("sync"); + /* Memory barrier */ + mb(); /* Initiate a read command, and wait */ out_be32(&phyregs->miimcom, MIIMCOM_READ_CYCLE); - asm("sync"); + /* Memory barrier */ + mb(); /* Wait for the the indication that the read is done */ while ((in_be32(&phyregs->miimind) & (MIIMIND_NOTVALID | MIIMIND_BUSY)) |