According to the datasheet for Marvell PHY [1], the mode field of the
General Control Register 1 Page 18 occupies bits [2:0]. However, the macro
PHY_MRVL_MODE_CONFIG_MASK specifies the mask as 0x3, which would
correspond only to [1:0]. The code in phy_xlnx_gem_marvell_alaska_cfg()
uses the mask to set the mode field to 0 to set "RGMII (System mode) to
Copper" mode. Unfortunately, different chips have different reset values
(111 or 000) and in first case, the code would set the field to 100,
instead of 000.
Without this change, ethernet on Avnet MicroZed (Marvel Alaska 88E1512 PHY)
does not work.
Signed-off-by: Marek Vedral <vedrama5@fel.cvut.cz>
[1]: https://www.marvell.com/content/dam/marvell/en/public-collateral/phys-transceivers/marvell-ethernet-phys-alaska-88e151x-datasheet.pdf
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Add support for the Xilinx GEM Ethernet controller, which is integrated
in both the Xilinx Zynq and ZynqMP (UltraScale) SoC families. The driver
supports the management of a PHY attached to the respective GEM's MDIO
interface.
This driver was developed with ultimately the Zynq-7000 series in mind,
but at the time being, it is limited to use in conjunction with the
ZynqMP RPU (Cortex-R5) cores. The differences are minor when it comes
to the adjustment of the TX clock frequency derived from the current
link speed reported by the PHY, but for use in conjunction with the
Zynq-7000, some larger adjustments will have to be made when it comes
to the placement of the DMA memory area, as this involves the confi-
guration of the MMU in Cortex-A CPUs.
The driver was developed under the qemu_cortex_r5 target. The Marvell
88E1111 PHY simulated by QEMU is supported by the driver.
Limitations currently exist when it comes to timestamping or VLAN
support and other minor things. Those haven't been implemented yet,
although they are supported by the hardware. In order to be fully
supported by the ZynqMP APU, 64-bit DMA address descriptor format
support will be added.
Signed-off-by: Immo Birnbaum <Immo.Birnbaum@weidmueller.com>
