From: Vipin KUMAR <vipin.ku...@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.ku...@st.com>
Signed-off-by: Amit Virdi <amit.vi...@st.com>
---
drivers/net/designware.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index 1e34436..ea8a406 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -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--);
--
1.7.2.2
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