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
mig_7series	Update the ddr4 if it has more memory ranges	https://github.com/Xilinx/device-tree-xlnx/commit/7e0fd7c255c9d31c6f0abce2dad335f0a7a9887c
Generic	Fix the alias support for I2c device	https://github.com/Xilinx/device-tree-xlnx/commit/1cf412b0ce282f66b0e3b15aabff0be7ed220f4d
Generic	Adding support for uartless designs	https://github.com/Xilinx/device-tree-xlnx/commit/2345bb6f68205e39f16a5328e0656fb684bba7f6
axi_vcu	Fix the clock names for vcu based on bindinds	https://github.com/Xilinx/device-tree-xlnx/commit/e4ac516acf5b44f671850f095759e77ce6befd90
usb	Support for USB 2.0 high speed property	https://github.com/Xilinx/device-tree-xlnx/commit/75b9919e349e2a4c97cbf0461a0674b3546d0646
Generic	Check the interrupt controller in get_intr_type	https://github.com/Xilinx/device-tree-xlnx/commit/6f57428485a42d75afbf637c9102cc432bcbed32

Answer Records (ARs)

Module Name	AR Title	AR Link
Ethernet driver (GEM)	2018.1 Zynq UltraScale+ MPSoC: PetaLinux Warm-Restart BSP fails to wakeup Ethernet	https://www.xilinx.com/support/answers/71028.html

Xilinx Wiki

2018.1 Linux and DTG Release Notes

2018.1 Linux and DTG Release Notes

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