[RFC,V2,0/6] ARM: Enable GENET support for RPi 4

Message

Stefan Wahren Nov. 2, 2019, 1:41 p.m. UTC

Raspberry Pi 4 uses the broadcom genet chip in version five.
This chip has a dma controller integrated. Up to now the maximal
burst size was hard-coded to 0x10. But it turns out that Raspberry Pi 4
does only work with the smaller maximal burst size of 0x8.

This series based on Matthias Brugger's V1 series [1], should help
to put all missing pieces together and hand my changes over to him.
So i doesn't address all comments from Florian and the series isn't
ready to be merged.

[1] - https://patchwork.kernel.org/cover/11186193/

Changes in V2:
- add 2 fixes for IRQ retrieval
- add support for missing PHY modes
- declare PHY mode RGMII RXID based on the default settings
- add alias to allow firmware append the MAC address

Matthias Brugger (1):
  net: bcmgenet: use optional max DMA burst size property

Stefan Wahren (5):
  net: bcmgenet: Fix error handling on IRQ retrieval
  net: bcmgenet: Avoid touching non-existent interrupt
  net: bcmgenet: Refactor register access in bcmgenet_mii_config
  net: bcmgenet: Add RGMII_RXID and RGMII_ID support
  ARM: dts: bcm2711-rpi-4: Enable GENET support

 arch/arm/boot/dts/bcm2711-rpi-4-b.dts          | 23 ++++++++++++
 arch/arm/boot/dts/bcm2711.dtsi                 | 19 ++++++++++
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 25 ++++++++++---
 drivers/net/ethernet/broadcom/genet/bcmgenet.h |  1 +
 drivers/net/ethernet/broadcom/genet/bcmmii.c   | 51 ++++++++++++++------------
 5 files changed, 90 insertions(+), 29 deletions(-)

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2.7.4