Kernel
Enhancements are added on top of the official
v4.19 Linux kernel tag where most of the Microchip SoC features are already supported. Note as well that we re-integrate each and every
stable kernel release on top of this Long Term Support (LTS) kernel revision. This means that each
v4.19.x version is merged in our branch.
Here is a little summary of the main additional enhancements:
- Integration of stable kernel updates up to v4.19.56
- Redesign of the Image Sensor Controller (ISC) driver with new White balance enhanced features.
- Driver for the WILC3000 and WILC1000 release 15.2 in place in the Linux4SAM kernel and ready to use
- TWI hardware filters support that filter out possible glitches on the TWI wires for both SAMA5D4 Xplained and SAMA5D2 Xplained
- Add 9bit/Multidrop
support in USART driver
- PIOBU pin controller driver
- MCP16502 PMIC driver
- ACT8945A: PM support (integrated in mainline)
- Ethernet: add runtime PM support (integrated in mainline)
- Ethernet: add backup and self-refresh support (integrated in mainline)
- Ethernet: use of NAPI GRO helpers to improve RX performance
- QSPI: move driver under the SPI-MEM interface. The controller can be used with NAND or NOR flashes.
- Support for Omnivision ov5640 now available for both SAMA5D2 Xplained and SAMA5D27 SOM1 EK