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| author | Vipin KUMAR <vipin.kumar@st.com> | 2012-03-26 00:09:52 +0000 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2012-04-04 10:46:39 -0500 |
| commit | c7f6dbe736f3f57436ba162f986691f7e862eb4d (patch) | |
| tree | dc27cdd5e73f30f91f8ba4e24d3e82840c558a4c /drivers/net | |
| parent | 3ceecef14e2258157c846b3aaa26d7cdcd833b05 (diff) | |
| download | u-boot-imx-c7f6dbe736f3f57436ba162f986691f7e862eb4d.zip u-boot-imx-c7f6dbe736f3f57436ba162f986691f7e862eb4d.tar.gz u-boot-imx-c7f6dbe736f3f57436ba162f986691f7e862eb4d.tar.bz2 | |
net/designware: Fix to restore hw mac address
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | 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--); |