Re: [U-Boot] [PATCH V2 4/5] net: fec: sharing MDIO for two enet controllers

On Wed, Mar 21, 2018 at 2:31 PM, Peng Fan peng.fan@nxp.com wrote:

On i.MX6SX, 6UL and 7D, there are two enet controllers each has a MDIO port. But Some boards share one MDIO port for the two enets. So introduce a configuration CONFIG_FEC_MXC_MDIO_BASE to indicate the MDIO port for sharing.

To i.MX28, adapt to use the new config

Signed-off-by: Peng Fan peng.fan@nxp.com Acked-by: Joe Hershberger joe.hershberger@ni.com Cc: Fabio Estevam fabio.estevam@nxp.com

---

V2: adapt mx28 to use FEC_MXC_MDIO_BASE

drivers/net/Kconfig | 9 ++++++++- drivers/net/fec_mxc.c | 8 ++++++-- include/configs/mx28evk.h | 1 + 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index de1947ccc1..c5fd6f648a 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -147,9 +147,16 @@ config ETHOC help This MAC is present in OpenRISC and Xtensa XTFPGA boards.

+config FEC_MXC_MDIO_BASE

•   hex "MDIO base address for the FEC controller"
  

•   depends on FEC_MXC
  

•   help
  

•     This specifies the MDIO registers base address. It is used when
  

•     two FEC controllers share MDIO bus.
  

How about retrieving this from dt? we have board that support dt along with dm supporting.

Jagan.