The MAC address register was being written in the wrong order, so add a new address macro to convert mac-address byte to register address and a ks8851_wrreg8() function to write each byte without having to worry about any difficult byte swapping. Fixes a bug reported by Doong, Ping of Micrel. Signed-off-by: Ben Dooks --- drivers/net/ks8851.c | 39 ++++++++++++++++++++++++++++++++++----- drivers/net/ks8851.h | 1 + 2 files changed, 35 insertions(+), 5 deletions(-) Index: b/drivers/net/ks8851.c =================================================================== --- a/drivers/net/ks8851.c 2009-10-06 14:25:53.000000000 +0100 +++ b/drivers/net/ks8851.c 2009-10-06 14:42:39.000000000 +0100 @@ -171,6 +171,36 @@ static void ks8851_wrreg16(struct ks8851 } /** + * ks8851_wrreg8 - write 8bit register value to chip + * @ks: The chip state + * @reg: The register address + * @val: The value to write + * + * Issue a write to put the value @val into the register specified in @reg. + */ +static void ks8851_wrreg8(struct ks8851_net *ks, unsigned reg, unsigned val) +{ + struct spi_transfer *xfer = &ks->spi_xfer1; + struct spi_message *msg = &ks->spi_msg1; + __le16 txb[2]; + int ret; + int bit; + + bit = 1 << (reg & 3); + + txb[0] = cpu_to_le16(MK_OP(bit, reg) | KS_SPIOP_WR); + txb[1] = val; + + xfer->tx_buf = txb; + xfer->rx_buf = NULL; + xfer->len = 3; + + ret = spi_sync(ks->spidev, msg); + if (ret < 0) + ks_err(ks, "spi_sync() failed\n"); +} + +/** * ks8851_rx_1msg - select whether to use one or two messages for spi read * @ks: The device structure * @@ -322,13 +352,12 @@ static void ks8851_soft_reset(struct ks8 static int ks8851_write_mac_addr(struct net_device *dev) { struct ks8851_net *ks = netdev_priv(dev); - u16 *mcp = (u16 *)dev->dev_addr; + int i; mutex_lock(&ks->lock); - ks8851_wrreg16(ks, KS_MARL, mcp[0]); - ks8851_wrreg16(ks, KS_MARM, mcp[1]); - ks8851_wrreg16(ks, KS_MARH, mcp[2]); + for (i = 0; i < ETH_ALEN; i++) + ks8851_wrreg8(ks, KS_MAR(i), dev->dev_addr[i]); mutex_unlock(&ks->lock); Index: b/drivers/net/ks8851.h =================================================================== --- a/drivers/net/ks8851.h 2009-10-06 14:34:32.000000000 +0100 +++ b/drivers/net/ks8851.h 2009-10-06 14:35:08.000000000 +0100 @@ -16,6 +16,7 @@ #define CCR_32PIN (1 << 0) /* MAC address registers */ +#define KS_MAR(_m) 0x15 - (_m) #define KS_MARL 0x10 #define KS_MARM 0x12 #define KS_MARH 0x14 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html