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2018.1 Linux and DTG Release Notes

2018.1 Linux and DTG Release Notes

Sept 24, 2018

 

2018.1 Linux and DTG Release Notes

 


Linux Changes


Module Name

Driver Location

Changes

Link

Linux kernel

Linux kernel source

  • Upgrade to 4.14

>

https://kernelnewbies.org/Linux_4.14

Ethernet driver (GEM)

drivers/net/ethernet/cadence/macb_main.c
drivers/net/ethernet/cadence/macb_ptp.c

  • Add clock management for tsu-clk

  • Add WOL support for ZynqMP

  • Use mainline implementation of 64 bit addressing

  • Use mainline implementation of PTP support

http://www.wiki.xilinx.com/Macb+Driver

Axi Ethernet Driver

drivers/net/ethernet/xilinx/xilinx_axienet_main.c
drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
drivers/net/ethernet/xilinx/xilinx_axienet.h

  • Add support for USXGMII

http://www.wiki.xilinx.com/Linux+AXI+Ethernet+driver

Xilinx Soft IP DMA driver

drivers/dma/xilinx/xilinx_dma.c

  • Program hardware supported buffer length in AXIDMA

  • Refactor axidma channel allocation

  • Enable VDMA S2MM vertical flip support

  • Fix kernel-doc warnings and coding style issues

http://www.wiki.xilinx.com/DMA+Drivers+-+Soft+IPs

VDMA test client driver

drivers/dma/xilinx/vdmatest.c

  • Add hsize and vsize module parameter

  • Use octal permissions '0444' for module parameter

http://www.wiki.xilinx.com/DMA+Drivers+-+Soft+IPs

Emaclite ethernet driver

drivers/net/ethernet/xilinx/xilinx_emaclite.c

  • Fix coding style

  • Trivial code cleanup

http://www.wiki.xilinx.com/Linux+Emaclite+Driver

PM driver

drivers/soc/xilinx/zynqmp/

  • Replaced old PM driver(drivers/soc/xilinx/zynqmp/pm.c) with new driver(drivers/soc/xilinx/zynqmp/power.c). Power.c now only contains power management related functions. Earlier pm.c had some platform management functions which are now moved to firmware interface.

  • Power Management driver now uses mailbox for receiving PM callbacks from firmware instead of registering IPI interrupt handler.

  • Changed Sysfs/debugfs paths and their usage

  • Change in device tree bindings

    • Removed "xlnx,zynqmp-pm" binding and replaced with new binding("xlnx,zynqmp-power") for power management driver

    • Replaced IPI interrupt properties with mailbox properties

http://www.wiki.xilinx.com/Zynq+UltraScale%EF%BC%8B+MPSoC+Power+Management+-+Linux+Kernel

Firmware driver

drivers/firmware/xilinx/zynqmp/

  • Replaced old firmware interface (drivers/soc/xilinx/zynqmp/firmware.c) with new firmware interface(drivers/firmware/xilinx/zynqmp/*)

  • Extracted firmware interface part from old PM driver(drivers/soc/xilinx/zynqmp/pm.c) to firmware driver.

  • Removed MMIO interface(AR 71089)

  • Added sysfs to set shutdown scope

  • Extracted firmware related property from old PM binding and created separate DT binding for ZynqMP firmware("xlnx,zynqmp-firmware")

ZynqMP firmware driver

Pin control driver

drivers/pinctrl/pinctrl-zynqmp.c

  • Request pin information from firmware instead of registering hard coded pin information in driver

  • Use firmware interface APIs to control/configure pins

  • Change in device tree binding

    • Removed "xlnx,pinctrl-zynqmp" binding and replaced with new "xlnx,zynqmp-pinctrl" binding

http://www.wiki.xilinx.com/ZynqMP+Linux+Pin+Controller+Driver

Common Clock Framework

drivers/clk/zynqmp/clkc.c

  • Request clock information from firmware instead of registering hard coded clocks in driver

  • Use firmware APIs to control clocks

  • Change in device tree binding

    • Removed "xlnx,zynqmp-clkc" binding and replaced with new "xlnx,zynqmp-clk" binding

http://www.wiki.xilinx.com/Common+Clock+Framework

SHA

drivers/crypto/zynqmp-sha.c

  • Replaced MMIO read/write with new firmware APIs

http://www.wiki.xilinx.com/SHA%20Driver

RSA

drivers/crypto/zynqmp-rsa.c

  • Replaced MMIO read/write with new firmware APIs


QSPI

drivers/spi/spi-zynqmp-gqspi.c

  • Replaced MMIO read/write with new firmware APIs

http://www.wiki.xilinx.com/Linux%20ZynqMP%20GQSPI%20Driver

ZynqMP Serdes/GT

drivers/phy/phy-zynqmp.c

  • Updated the driver to reinitialize gt lane for USB only if required

  • Updated the driver to use EEMI framework for performing ULPI reset sequence

  • Replaced MMIO read/write with new firmware APIs

http://www.wiki.xilinx.com/Zynq+Ultrascale+MPSOC+Linux+SIOU+driver

Zynq Ultrascale+ MPSOC USB

drivers/usb/dwc3/

  • Added code for supporting entering into D3 state during suspend

  • Put usb core in reset after entering D3 state

  • Updated driver to 4.14 kernel

  • Add hibernation support when operating in gadget mode

  • Add support for enabling/disabling hibernation dynamically

  • Don't return error when phy is not found

  • Don't wait for end transfer to finish for isoc endpoints

  • Fix the broken suspend/resume functionality in dwc3

  • In OTG mode don't clear event buffers when changing to Host mode

  • Added support for stopping ISOC transfers before starting a new ISOC transfer

http://www.wiki.xilinx.com/Zynq+Ultrascale+MPSOC+Linux+USB+device+driver

Tap Delay

drivers/soc/xilinx/zynqmp/tap_delays.c

  • Replaced MMIO read/write with new firmware APIs


FPGA Manager/ZynqMP PL programming

drivers/fpga/zynqmp-fpga.c

  • Replaced MMIO read/write with new firmware APIs

http://www.wiki.xilinx.com/Solution+ZynqMP+PL+Programming

Nvmem-
SoC revision read mechanism

drivers/nvmem/zynqmp_nvmem.c

  • Replaced MMIO read/write with new firmware APIs

http://www.wiki.xilinx.com/Solution%20ZynqMP%20SoC%20revision%20read%20mechanism

ZynqMP R5 remoteproc driver

drivers/remoteproc/zynqmp_r5_remoteproc.c

  • Replaced MMIO read/write with new firmware APIs


ZynqMP power domain driver

drivers/soc/xilinx/zynqmp/pm_domains.c

  • Replaced MMIO read/write with new firmware APIs


Reset-Controller

drivers/reset/reset-zynqmp.c

  • Replaced MMIO read/write with new firmware APIs

http://www.wiki.xilinx.com/Zynqmp%20Linux%20Reset-controller%20Driver

ZynqMP IPI mailbox driver

drivers/mailbox/zynqmp-ipi-mailbox.c

  • Implement the IPI driver under the Linux kernel mailbox framework

    • Use the IPI hardware core as a mailbox.

    • One message at a time, that is there will be no message sent until the previous message in the mailbox has been taken by the receiver.

    • Use the 32 bytes IPI buffer for the content of the message, and use the IPI registers for notification.

Xilinx ZynqMP IPI Mailbox Driver

Zynq and ZynqMP SD Controller

drivers/mmc/host/sdhci-of-arasan.c

  • Added Runtime PM support

http://www.wiki.xilinx.com/SD%20controller

System Monitor

drivers/iio/adc/xilinx-ams

  • Add support to read voltages from AMS control block

http://www.wiki.xilinx.com/ZynqMP%20AMS

EDAC

drivers/edac/synopsys_edac.c

  • Add Memory mapping, 16bit row mode and video buffer mode support

http://www.wiki.xilinx.com/EDAC%20Driver
http://www.wiki.xilinx.com/ZynqMP%20OCM%20EDAC%20Driver


Linux Bug Fixes

Module Name

Driver Location

Bug Fixes

Link

Ethernet driver (GEM)

drivers/net/ethernet/cadence/macb_main.c
drivers/net/ethernet/cadence/macb_ptp.c

  • Fix and improve suspend/resume by adding phy suspend/resume, rx mode settings and PTP add/remove

  • Update macb RX tie-off descriptor

  • Remove unnecessary DBW read back from NWCFG

http://www.wiki.xilinx.com/Macb+Driver

Axi Ethernet driver

drivers/net/ethernet/xilinx/xilinx_axienet_main.c
drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
drivers/net/ethernet/xilinx/xilinx_axienet.h

  • Updated interrupt-names property with ip interrupt naming convention

http://www.wiki.xilinx.com/Linux%20AXI%20Ethernet%20driver

Xilinx Soft IP DMA driver

drivers/dma/xilinx/xilinx_dma.c

  • Free BD consistent memory in channel free_chan_resources

http://www.wiki.xilinx.com/DMA+Drivers+-+Soft+IPs

VDMA test client driver

drivers/dma/xilinx/vdmatest.c

  • Fix VDMA hang reported in certain resolutions

http://www.wiki.xilinx.com/DMA+Drivers+-+Soft+IPs

Emaclite Ethernet driver

drivers/net/ethernet/xilinx/xilinx_emaclite.c

  • Fix MDIO bus unregister bug on repetitive module load and unload.

http://www.wiki.xilinx.com/Linux+Emaclite+Driver

ZDMA driver

drivers/dma/xilinx/zynqmp_dma.c

  • Fixed race condition in the probe, Incase of interrupt property is not present, driver is trying to free an invalid free.

http://www.wiki.xilinx.com/Zynqmp+DMA



DTG Feature Changes

Module Name

Feature Changes

Link

Generic

Clock support in the DTG

http://www.wiki.xilinx.com/DTG+Common+clock+framework

TSN IP

TSN IP driver support

http://www.wiki.xilinx.com/TSN+IP+driver+support+in+DTG

Generic

Add the placeholder comment for generic drivers

https://github.com/Xilinx/device-tree-xlnx/commit/2cb30975c26dd879d81793fb75d234761681c166

Generic

Added support for interrupt name property

https://github.com/Xilinx/device-tree-xlnx/commit/8679339fd0e1fee45b35ef978ce4af2aa4bc5141




DTG Bug Fixes

Module Name

Bug Fixes

Link

Generic

Fix the reg property if this is greater than 32-bits

https://github.com/Xilinx/device-tree-xlnx/commit/d8c43b3f11685dc66c37d3d732ec78d44ba213b6