diff options
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-layerscape/cpu.c')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c index e610528544..596b88d3e2 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c @@ -1147,15 +1147,15 @@ int arch_early_init_r(void) * 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. + * Now if a dpmac is enabled as RGMII through ECx_PMUX then it takes + * precedence over SerDes protocol. 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 RGMII and not SGMII. * - * Therefore, move the fsl_rgmii_init after fsl_serdes_init. 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. + * Therefore, even thought fsl_rgmii_init is after fsl_serdes_init + * function of SOC, the dpmac will be enabled as RGMII even if it was + * also enabled before as SGMII. If ECx_PMUX is not configured for + * RGMII, DPMAC will remain configured as SGMII from fsl_serdes_init(). */ fsl_rgmii_init(); #endif |