Linux 5.17 在ARM、MIPS、RISC-V的主要更新

Linux 5.17 changelog for the Arm architecture

• The arm64 architecture has gained support for the kernel concurrency sanitizer (KCSAN).
• 32-Bit Arm systems now support KFENCE.
• Allwinner
  • Allwinner A64/H5 – DRAM frequency scaling (DEVFREQ)
  • Allwinner – R40/T3/A40i – CAN (series)
  • Allwinner H6 – Hantro G2 core for VP9 video decoding
• Rockchip
  • Multiple fixes for the Rockchip RK3399 addressing issues with sound and eMMC
  • Rockchip rk3568 usb2 support
  • Rockchip VDEC – Added backend for VP9 profile 0 up to 4096×2304@30fps
• Amlogic
  • Amlogic Meson8 HDMI TX PHY driver
  • ARM64 DT changes for Linux 5.17:
    • Add missing CEC nodes for ODROID-C4 & HC4
    • Fix thermal-zones indent for G12/SM1 SoCs dtsi
    • Fix GPU OPP table node name for G12/SM1 SoCs dtsi
    • Fix HDMI supply
    • Add missing gpio bindings include
    • Switch to new LED bindings
    • P241 additions – Add VCC 5v regulator, add sound nodes
• Samsung
  • Clock driver – Initial clock driver for the Exynos7885 SoC (found in Samsung Galaxy A8)
  • Pinctrl driver – Add Samsung Exynos 7885 pin controller
  • Samsung SoC drivers gain support for new SoCs in ChipID (Exynos 7885) and PMU (Exynos 850), as well as a new USIv2 driver that handles various types of serial
    communication (UART, I2C, SPI)
  • Minor fixes for S3C platforms
  • DTS ARM changes for Linux 5.17
    • Fix Bluetooth GPIO on GT-I9100.
    • Minor improvements and dts chema fixes.
• Qualcomm
  • Added support for Snapdragon X65 5G modem (Cortex-A7)
  • Added support for Snapdragon 8 Gen 1 high-end mobile SoC
  • Pinctrl driver
    • Add Qualcomm SDX65, SM8450 pin controllers
    • Add Qualcomm PM8019, PM8226, and PM2250 pin controllers.
  • PHY
    • Qualcomm eDP PHY driver
    • Qualcomm SM8450 UFS, USB2, USB3, PCIe0 and PCIe1 phy support
    • Qualcomm SM6350 USB2 support
  • PCIe controller driver –  Various fixes
  • Clock drivers – Added Qualcomm SDX65, SM8450, and MSM8976 GCC clks, Qualcomm SDX65 and SM8450 RPMh clks
  • Networking – Added BAM-DMUX WWAN network driver, updates to Qualcomm 802.11ax WiFi   driver
  • Device tree updates for SDX55 modem (IPA, PCIe PHY and PCIe endpoint controller)
• MediaTek
  • Basic support for Mediatek MT7986 (A/B) Wifi router SoC aka Filogic 830
  • Various fixes for MediaTek PCIe, PCIe Gen3, and MT7621 PCIe controller drivers
  • MediaTek WiFi (mt76) – Specific Absorption Rate (SAR) support, mt7921: 160 MHz channel support
  • Added support for Mediatek MT6589 and MT8183
• Other new Arm hardware platforms and SoCs
  • Apple – Added missing device trees for all the remaining M1 Macbook and iMac variants, but not yet the M1 Pro/Max versions.
  • Aspeed AST2500/AST2600 BMCs in TYAN, Facebook, and Yadro servers
  • Broadcom – Support for the Netgear RAXE500 Wireless router based on BCM4908
  • Microchip – AT91/SAMA5 based evaluation board
  • NVIDIA
    • Various older Android devices based on 32-bit chips, including a number of ASUS Transformer tablets.
    • Jetson AGX Orin developer kit
  • NXP
    • i.MX 8ULP low-power variant of the i.MX8 series.
    • 20 new development and industrial boards for i.MX and LayerScape SoCs
  • Renesas – R-Car S4-8 automotive Server/Communication SoC.
  • STMicro – Engicam i.Core STM32MP1 carrier board.
  • Texas Instruments
    • J721s automotive SoC in the K3 family.
    • SPEAr320s minor variant of the SPEAr320 SoC

Updates for the MIPS architecture

MIPS is still not completely dead with some updates:

• Add support for more BCM47XX based devices
• Add MIPS support for brcmstb PCIe controller
• Add Loongson 2K1000 reset driver
• Add MDMA and BDMA clks to Ingenic JZ4760 and JZ4770
• Remove board support for rbtx4938/rbtx4939
• Remove support for TX4939 SoCs
• Fixes and cleanups

RISC-V changes in Linux 5.17

There were also some interesting updates to RISC-V notably related to Allwinner and StarFive processors:

• Allwinner D1 – Clocks, PLIC, Crypto engine
• Add support for StarFive JH7100 RISC-V SoC found in VisionFive SBC and BeagleV Starlight
• Support for the DA9063 as used on the HiFive Unmatched.
• Support for relative extables, which puts us in line with other architectures and save some space in vmlinux.
• A handful of kexec fixes/improvements, including the ability to run crash kernels from PCI-addressable memory on the HiFive Unmatched.
• Support for the SBI SRST extension, which allows systems that do not have an explicit driver in Linux to reboot.
• A handful of fixes and cleanups, including to the defconfigs and device trees.

更多详细信息，可参考官方更新说明：https://kernelnewbies.org/Linux_5.17