This page is intended to give more details on the Xilinx drivers for U-boot, such as testing, how to use the drivers, etc. The drivers included in the u-boot tree are intended to run on ARM (Zynq,
Zynq Ultrascale+ MPSoC).
There are a number of drivers in the u-boot tree and they may work, but the following list of drivers are currently what's tested and users are encouraged to use these rather than others.
| Component | Platform/IP core | Link | In Mainline | Location | Comment |
| i2c | Zynq, ZynqMP and |
ZynqMP| Versal | i2c driver | Yes | drivers/i2c/zynq_i2c.c and
drivers/i2c/i2c-cdns.c |
|
| SD controller | Zynq, ZynqMP and |
ZynqMP| Versal | mmc driver | Yes | drivers/mmc/zynq_sdhci.c |
|
| GEM | Zynq, ZynqMP and |
ZynqMP| Versal | ethernet driver | Yes | drivers/net/zynq_gem.c |
|
| AXI Ethernet | PL | Ethernet driver for 1G/10G/25G | Yes | drivers/net/xilinx_axi_emac.c |
|
| MRMAC | PL | Multirate MAC 10G/25G | Yes | drivers/net/xilinx_axi_mrmac.c | Supports designs based on MCDMA only |
| AXI UART | PL | AXI UART driver | Yes | drivers/serial/serial_xuartlite.c |
|
| QSPI | Zynq |
and ZynqMPqspi| gqspi.c | Need to upstream support for dual-parallel and dual-stacked configurations |
| OSPI | Versal | Octal SPI driver | Yes | drivers/spi/cadence_ospi_versal.c drivers/spi/ |
zynqcadence_qspi.c drivers/spi/ |
zynqmpis not in mainline ZynqMP| Versal | usb driver | Yes | drivers/usb/host/xhci-zynqmp.c and
drivers/usb/host/ehci-zynq.c |
nand ZynqMP| Versal | nand driver | Yes | drivers/mtd/nand/zynq_nand.c and
drivers/mtd/nand/arasan_nfc.c |
gpio ZynqMP| Versal | gpio driver | Yes | drivers/gpio/zynq_gpio.c and
drivers/gpio/xilinx_gpio.c |
|
| Serial | Zynq and ZynqMP | UART driver | Yes | drivers/serial/serial_zynq.c |
|
| Watchdog | Versal | Watchdog driver | Yes | drivers/watchdog/xilinx_wwdt.c |
|
