diff options
| author | Pankaj Bansal <pankaj.bansal@nxp.com> | 2019-02-08 08:59:24 +0000 |
|---|---|---|
| committer | Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> | 2019-03-15 11:52:00 +0530 |
| commit | 82fadccccfd80c6162639180af85c600b6e41d9e (patch) | |
| tree | b78158ea22bf1566b93f3ca91ce500b6a90ef99c | |
| parent | 9ba5e5bc261a16f51662490da0cf620dc7f29013 (diff) | |
drivers: net: ldpaa_eth: check if the dpmac is enabled
some dpmacs in armv8a based freescale layerscape SOCs can be
configured via both serdes(sgmii, xfi, xlaui etc) bits and via
EC*_PMUX(rgmii) bits in RCW.
e.g. dpmac 17 and 18 in LX2160A can be configured as SGMII from
serdes bits and as RGMII via EC1_PMUX/EC2_PMUX bits
Now if a dpmac is enabled by serdes bits then it takes precedence
over EC*_PMUX bits. i.e. in LX2160A if we select serdes protocol
that configures dpmac17 as SGMII and set the EC1_PMUX as RGMII,
then the dpmac is SGMII and not RGMII.
Therefore, in fsl_rgmii_init function of SOC, we will check if the
dpmac is enabled or not? if it is (fsl_serdes_init has already enabled
the dpmac), then don't enable it.
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
| -rw-r--r-- | drivers/net/ldpaa_eth/lx2160a.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ldpaa_eth/lx2160a.c b/drivers/net/ldpaa_eth/lx2160a.c index 7dd46c04f6..1fbeb0d14b 100644 --- a/drivers/net/ldpaa_eth/lx2160a.c +++ b/drivers/net/ldpaa_eth/lx2160a.c @@ -91,7 +91,7 @@ void fsl_rgmii_init(void) & FSL_CHASSIS3_EC1_REGSR_PRTCL_MASK; ec >>= FSL_CHASSIS3_EC1_REGSR_PRTCL_SHIFT; - if (!ec) + if (!ec && (wriop_is_enabled_dpmac(17) == -ENODEV)) wriop_init_dpmac_enet_if(17, PHY_INTERFACE_MODE_RGMII_ID); #endif @@ -100,7 +100,7 @@ void fsl_rgmii_init(void) & FSL_CHASSIS3_EC2_REGSR_PRTCL_MASK; ec >>= FSL_CHASSIS3_EC2_REGSR_PRTCL_SHIFT; - if (!ec) + if (!ec && (wriop_is_enabled_dpmac(18) == -ENODEV)) wriop_init_dpmac_enet_if(18, PHY_INTERFACE_MODE_RGMII_ID); #endif } |