OrgZephyr/zephyr
OrgZephyr
/
zephyr
mirror of https://github.com/zephyrproject-rtos/zephyr.git
1
0
Fork 0
Code Issues Releases Wiki Activity
zephyr/drivers/ethernet/Kconfig.xlnx_gem

25 lines
646 B
Plaintext
Raw Normal View History

drivers: ethernet: add support for Xilinx GEM controller 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>
2021-05-17 22:05:57 +08:00
#
# Xilinx Processor System Gigabit Ethernet controller (GEM) driver
# configuration options
#
# Copyright (c) 2021, Weidmueller Interface GmbH & Co. KG
# SPDX-License-Identifier: Apache-2.0
#
menuconfig ETH_XLNX_GEM
bool "Xilinx GEM Ethernet driver"
drivers: ethernet: Update Kconfig * Utilize DT_HAS_<COMPAT>_ENABLED for devicetree based drivers * Move to using 'select SPI' instead of 'depends on' (see commit df81fef94483da9f2811d48088affbcfd61ab18c for more details) Signed-off-by: Kumar Gala <galak@kernel.org>
2022-08-09 23:46:31 +08:00
default y
depends on DT_HAS_XLNX_GEM_ENABLED
drivers: ethernet: xlnx_gem: Zynq-7000 support for the Xilinx GEM driver Add support for the Xilinx Zynq-7000 SoC family to this driver. This includes some SoC-specific register accesses when setting an updated TX clock divider, also, the device tree binding now supports higher MDC clock divisor values when the current target SoC is a Zynq rather than a ZynqMP. With regards to the use of this driver in a QEMU simulation of the Zynq-7000, the Kconfig file is modified so that the driver is not enabled unless QEMU networking is set to Ethernet mode. Signed-off-by: Immo Birnbaum <Immo.Birnbaum@weidmueller.com>
2021-07-15 19:10:33 +08:00
depends on !QEMU_TARGET || (QEMU_TARGET && NET_QEMU_ETHERNET)
drivers: ethernet: add support for Xilinx GEM controller 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>
2021-05-17 22:05:57 +08:00
help
Enable Xilinx GEM Ethernet driver.
config ETH_NIC_MODEL
string
default "cadence_gem"
depends on ETH_XLNX_GEM
help
Value of the -nic parameter to be used when starting QEMU.
This parameter specifies which type of Ethernet controller
shall be simulated by QEMU.