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path: root/drivers/net/r8169.c
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Diffstat (limited to 'drivers/net/r8169.c')
-rw-r--r--drivers/net/r8169.c38
1 files changed, 30 insertions, 8 deletions
diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index c821da21d8e..2b4e975770f 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -81,6 +81,10 @@ static const int multicast_filter_limit = 32;
#define RTL8169_TX_TIMEOUT (6*HZ)
#define RTL8169_PHY_TIMEOUT (10*HZ)
+#define RTL_EEPROM_SIG cpu_to_le32(0x8129)
+#define RTL_EEPROM_SIG_MASK cpu_to_le32(0xffff)
+#define RTL_EEPROM_SIG_ADDR 0x0000
+
/* write/read MMIO register */
#define RTL_W8(reg, val8) writeb ((val8), ioaddr + (reg))
#define RTL_W16(reg, val16) writew ((val16), ioaddr + (reg))
@@ -1944,14 +1948,15 @@ static void rtl_init_mac_address(struct rtl8169_private *tp,
void __iomem *ioaddr)
{
struct pci_dev *pdev = tp->pci_dev;
- u8 cfg1;
int vpd_cap;
+ __le32 sig;
u8 mac[8];
- DECLARE_MAC_BUF(buf);
+ u8 cfg1;
cfg1 = RTL_R8(Config1);
if (!(cfg1 & VPD)) {
- dprintk("VPD access not enabled, enabling\n");
+ if (netif_msg_probe(tp))
+ dev_info(&pdev->dev, "VPD access disabled, enabling\n");
RTL_W8(Cfg9346, Cfg9346_Unlock);
RTL_W8(Config1, cfg1 | VPD);
RTL_W8(Cfg9346, Cfg9346_Lock);
@@ -1961,7 +1966,16 @@ static void rtl_init_mac_address(struct rtl8169_private *tp,
if (!vpd_cap)
return;
- /* MAC address is stored in EEPROM at offset 0x0e
+ if (rtl_eeprom_read(pdev, vpd_cap, RTL_EEPROM_SIG_ADDR, &sig) < 0)
+ return;
+
+ if ((sig & RTL_EEPROM_SIG_MASK) != RTL_EEPROM_SIG) {
+ dev_info(&pdev->dev, "Missing EEPROM signature: %08x\n", sig);
+ return;
+ }
+
+ /*
+ * MAC address is stored in EEPROM at offset 0x0e
* Realtek says: "The VPD address does not have to be a DWORD-aligned
* address as defined in the PCI 2.2 Specifications, but the VPD data
* is always consecutive 4-byte data starting from the VPD address
@@ -1969,14 +1983,22 @@ static void rtl_init_mac_address(struct rtl8169_private *tp,
*/
if (rtl_eeprom_read(pdev, vpd_cap, 0x000e, (__le32*)&mac[0]) < 0 ||
rtl_eeprom_read(pdev, vpd_cap, 0x0012, (__le32*)&mac[4]) < 0) {
- dprintk("Reading MAC address from EEPROM failed\n");
+ if (netif_msg_probe(tp)) {
+ dev_warn(&pdev->dev,
+ "reading MAC address from EEPROM failed\n");
+ }
return;
}
- dprintk("MAC address found in EEPROM: %s\n", print_mac(buf, mac));
+ if (netif_msg_probe(tp)) {
+ DECLARE_MAC_BUF(buf);
+
+ dev_info(&pdev->dev, "MAC address found in EEPROM: %s\n",
+ print_mac(buf, mac));
+ }
- /* Write MAC address */
- rtl_rar_set(tp, mac);
+ if (is_valid_ether_addr(mac))
+ rtl_rar_set(tp, mac);
}
static int __devinit