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| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2013-09-25 17:33:10 +0400 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2013-11-22 16:50:54 -0600 |
| commit | 227ad7b2b6fab024fff6f60613b0e90c9e3a6724 (patch) | |
| tree | 86c2c10f745412488692ac3acee33940d6d8fa27 /drivers/net | |
| parent | 47ce8890486be72ce6b634c590a0c6baa2447084 (diff) | |
| download | u-boot-imx-227ad7b2b6fab024fff6f60613b0e90c9e3a6724.zip u-boot-imx-227ad7b2b6fab024fff6f60613b0e90c9e3a6724.tar.gz u-boot-imx-227ad7b2b6fab024fff6f60613b0e90c9e3a6724.tar.bz2 | |
net: designware: Respect "bus mode" register contents on SW reset
"bus mode" register contains lots of fields and some of them don't
expect to be written with 0 (zero). So since we're only interested in
resetting MAC (which is done with setting the least significant bit of
this register with "0") I believe it's better to modify only 1 bit of
the register.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vipin Kumar <vipin.kumar@st.com>
Patch: 277864
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/designware.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/designware.c b/drivers/net/designware.c index 8413d57..22155b4 100644 --- a/drivers/net/designware.c +++ b/drivers/net/designware.c @@ -96,7 +96,7 @@ static int mac_reset(struct eth_device *dev) ulong start; int timeout = CONFIG_MACRESET_TIMEOUT; - writel(DMAMAC_SRST, &dma_p->busmode); + writel(readl(&dma_p->busmode) | DMAMAC_SRST, &dma_p->busmode); if (priv->interface != PHY_INTERFACE_MODE_RGMII) writel(MII_PORTSELECT, &mac_p->conf); |