From: Vipin KUMAR vipin.kumar@st.com
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 --- drivers/net/designware.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/net/designware.c b/drivers/net/designware.c index 1e34436..754ffae 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -148,6 +148,8 @@ static int dw_eth_init(struct eth_device *dev, bd_t *bis) if (mac_reset(dev) < 0) return -1;
+ dw_write_hwaddr(dev); + writel(FIXEDBURST | PRIORXTX_41 | BURST_16, &dma_p->busmode);
@@ -300,8 +302,10 @@ 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--);