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Date: Wed, 7 Nov 2012 19:14:53 +0100
From: Joachim Eastwood <manabian@...il.com>
To: nicolas.ferre@...el.com, davem@...emloft.net
Cc: plagnioj@...osoft.com, netdev@...r.kernel.org,
Joachim Eastwood <manabian@...il.com>
Subject: [PATCH 4/8] net/at91_ether: use macb functions for get/set hwaddr
Signed-off-by: Joachim Eastwood <manabian@...il.com>
---
drivers/net/ethernet/cadence/at91_ether.c | 112 +-----------------------------
1 file changed, 3 insertions(+), 109 deletions(-)
diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c
index 6eb928e..2f89e64 100644
--- a/drivers/net/ethernet/cadence/at91_ether.c
+++ b/drivers/net/ethernet/cadence/at91_ether.c
@@ -46,109 +46,6 @@
/* max number of receive buffers */
#define MAX_RX_DESCR 9
-/* ......................... ADDRESS MANAGEMENT ........................ */
-
-/*
- * NOTE: Your bootloader must always set the MAC address correctly before
- * booting into Linux.
- *
- * - It must always set the MAC address after reset, even if it doesn't
- * happen to access the Ethernet while it's booting. Some versions of
- * U-Boot on the AT91RM9200-DK do not do this.
- *
- * - Likewise it must store the addresses in the correct byte order.
- * MicroMonitor (uMon) on the CSB337 does this incorrectly (and
- * continues to do so, for bug-compatibility).
- */
-
-static short __init unpack_mac_address(struct net_device *dev, unsigned int hi, unsigned int lo)
-{
- struct macb *lp = netdev_priv(dev);
- char addr[6];
-
- if (lp->board_data.rev_eth_addr) {
- addr[5] = (lo & 0xff); /* The CSB337 bootloader stores the MAC the wrong-way around */
- addr[4] = (lo & 0xff00) >> 8;
- addr[3] = (lo & 0xff0000) >> 16;
- addr[2] = (lo & 0xff000000) >> 24;
- addr[1] = (hi & 0xff);
- addr[0] = (hi & 0xff00) >> 8;
- }
- else {
- addr[0] = (lo & 0xff);
- addr[1] = (lo & 0xff00) >> 8;
- addr[2] = (lo & 0xff0000) >> 16;
- addr[3] = (lo & 0xff000000) >> 24;
- addr[4] = (hi & 0xff);
- addr[5] = (hi & 0xff00) >> 8;
- }
-
- if (is_valid_ether_addr(addr)) {
- memcpy(dev->dev_addr, &addr, 6);
- return 1;
- }
- return 0;
-}
-
-/*
- * Set the ethernet MAC address in dev->dev_addr
- */
-static void __init get_mac_address(struct net_device *dev)
-{
- struct macb *lp = netdev_priv(dev);
-
- /* Check Specific-Address 1 */
- if (unpack_mac_address(dev, macb_readl(lp, SA1T), macb_readl(lp, SA1B)))
- return;
- /* Check Specific-Address 2 */
- if (unpack_mac_address(dev, macb_readl(lp, SA2T), macb_readl(lp, SA2B)))
- return;
- /* Check Specific-Address 3 */
- if (unpack_mac_address(dev, macb_readl(lp, SA3T), macb_readl(lp, SA3B)))
- return;
- /* Check Specific-Address 4 */
- if (unpack_mac_address(dev, macb_readl(lp, SA4T), macb_readl(lp, SA4B)))
- return;
-
- printk(KERN_ERR "at91_ether: Your bootloader did not configure a MAC address.\n");
-}
-
-/*
- * Program the hardware MAC address from dev->dev_addr.
- */
-static void update_mac_address(struct net_device *dev)
-{
- struct macb *lp = netdev_priv(dev);
-
- macb_writel(lp, SA1B, (dev->dev_addr[3] << 24) | (dev->dev_addr[2] << 16)
- | (dev->dev_addr[1] << 8) | (dev->dev_addr[0]));
- macb_writel(lp, SA1T, (dev->dev_addr[5] << 8) | (dev->dev_addr[4]));
-
- macb_writel(lp, SA2B, 0);
- macb_writel(lp, SA2T, 0);
-}
-
-/*
- * Store the new hardware address in dev->dev_addr, and update the MAC.
- */
-static int set_mac_address(struct net_device *dev, void* addr)
-{
- struct sockaddr *address = addr;
-
- if (!is_valid_ether_addr(address->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(dev->dev_addr, address->sa_data, dev->addr_len);
- update_mac_address(dev);
-
- printk("%s: Setting MAC address to %pM\n", dev->name,
- dev->dev_addr);
-
- return 0;
-}
-
-/* ................................ MAC ................................ */
-
/*
* Initialize and start the Receiver and Transmit subsystems
*/
@@ -219,8 +116,7 @@ static int at91ether_open(struct net_device *dev)
ctl = macb_readl(lp, NCR);
macb_writel(lp, NCR, ctl | MACB_BIT(CLRSTAT));
- /* Update the MAC address (incase user has changed it) */
- update_mac_address(dev);
+ macb_set_hwaddr(lp);
ret = at91ether_start(dev);
if (ret)
@@ -438,7 +334,7 @@ static const struct net_device_ops at91ether_netdev_ops = {
.ndo_start_xmit = at91ether_start_xmit,
.ndo_get_stats = at91ether_stats,
.ndo_set_rx_mode = macb_set_rx_mode,
- .ndo_set_mac_address = set_mac_address,
+ .ndo_set_mac_address = eth_mac_addr,
.ndo_do_ioctl = macb_ioctl,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = eth_change_mtu,
@@ -557,9 +453,7 @@ static int __init at91ether_probe(struct platform_device *pdev)
res = at91ether_get_hwaddr_dt(lp);
if (res < 0)
- get_mac_address(dev); /* Get ethernet address and store it in dev->dev_addr */
-
- update_mac_address(dev); /* Program ethernet address into MAC */
+ macb_get_hwaddr(lp);
res = at91ether_get_phy_mode_dt(pdev);
if (res < 0) {
--
1.8.0
--
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