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net/designware: Fix to restore hw mac address

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The network controller mac resets hardware address stored in MAC_HI and MAC_LO
registers if mac is resetted. So, hw mac address needs to be restored in case
mac is explicitly resetted from driver.

Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
This commit is contained in:
Vipin KUMAR 2012-03-26 00:09:52 +00:00 committed by Joe Hershberger
parent 3ceecef14e
commit c7f6dbe736
1 changed files with 6 additions and 1 deletions
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7
drivers/net/designware.c
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@ -148,6 +148,9 @@ static int dw_eth_init(struct eth_device *dev, bd_t *bis)
if (mac_reset(dev) < 0)
return -1;
/* Resore the HW MAC address as it has been lost during MAC reset */
dw_write_hwaddr(dev);
writel(FIXEDBURST | PRIORXTX_41 | BURST_16,
&dma_p->busmode);
@ -300,8 +303,10 @@ static int eth_mdio_write(struct eth_device *dev, u8 addr, u8 reg, u16 val)
writel(miiaddr | MII_CLKRANGE_150_250M | MII_BUSY, &mac_p->miiaddr);
do {
if (!(readl(&mac_p->miiaddr) & MII_BUSY))
if (!(readl(&mac_p->miiaddr) & MII_BUSY)) {
ret = 0;
break;
}
udelay(1000);
} while (timeout--);