[PATCH v2 0/5] can: flexcan: Add NXP S32N79 SoC support

[Ciprian Costea]

From: Ciprian Marian Costea <ciprianmarian.costea@xxxxxxxxxxx>

This patch series adds FlexCAN support for the NXP S32N79 SoC.

The S32N79 is an automotive-grade processor from NXP with multiple
FlexCAN instances. The FlexCAN IP integration on S32N79 differs from
other SoCs in the interrupt routing - it uses two separate interrupt
lines:
  - one interrupt for mailboxes 0-127
  - one interrupt for bus error detection and device state changes

The CAN controllers are connected through an irqsteer interrupt
controller in the RCU (Resource Control Unit) domain.

This series:
  1. Adds dt-bindings documentation for S32N79 FlexCAN
  2. Introduces FLEXCAN_QUIRK_IRQ_BERR to handle the two-interrupt
     configuration
  3. Adds S32N79 device data and compatible string to the driver
  4. Adds FlexCAN device tree nodes for S32N79 SoC
  5. Enables FlexCAN devices on the S32N79-RDB board

Tested on S32N79-RDB board with CAN and CAN FD communication.

v2 -> v1
- Renamed FLEXCAN_QUIRK_NR_IRQ_2 to FLEXCAN_QUIRK_IRQ_BERR to better
describe the actual hardware feature
- Appended new quirk at the end
- Switched from platform_get_irq to platform_get_irq_byname usage
- Updated interrupt description in dt-bindings

Ciprian Marian Costea (5):
  dt-bindings: can: fsl,flexcan: add NXP S32N79 SoC support
  can: flexcan: add FLEXCAN_QUIRK_IRQ_BERR quirk
  can: flexcan: add NXP S32N79 SoC support
  arm64: dts: s32n79: add FlexCAN nodes
  arm64: dts: s32n79: enable FlexCAN devices

 .../bindings/net/can/fsl,flexcan.yaml         | 30 ++++++++++-
 arch/arm64/boot/dts/freescale/s32n79-rdb.dts  | 12 +++++
 arch/arm64/boot/dts/freescale/s32n79.dtsi     | 50 +++++++++++++++++++
 drivers/net/can/flexcan/flexcan-core.c        | 31 ++++++++++--
 drivers/net/can/flexcan/flexcan.h             |  2 +
 5 files changed, 121 insertions(+), 4 deletions(-)

-- 
2.43.0