[PATCH v3 0/3] Ethernet support for Raspberry Pi 4

[Andre Przywara]

This series adds Ethernet support for the Raspberry Pi 4. The SoC
includes a "Broadcom Genet v5 MAC" IP, connected as a proper platform
device (no USB anymore!). Patch 1 provides a driver for that. There does
not seem to be publicly available documentation, so this is based on the
Linux driver, but stripped down to just provide what U-Boot needs.
Patch 2 fixes up the RPi4 memory map to accommodate the MMIO area the
MAC lives in, while patch 3 enables it in the respective defconfigs.

This version fixes the nasty SError issue that showed when booting Linux.
To see the changes as patches, refer to [1].

Please have a look and test it, I hope this helps to simplify
development, as you spare the SD card and its slot from heavy swapping.

Cheers,
Andre.

[1] https://github.com/apritzel/u-boot/commits/rpi4-eth-v3

Changelog v2 ... v3:
- properly reset MAC in eth_probe() to avoid SError in Linux
- disable RX DMA upon stopping the device

Changelog v1 ... v2:
- use native endianess functions when accessing MMIO registers
- use dev_* DM wrappers for accessing devicetree data
- round base and length for flush_dcache_range, plus a comment
- check and round length for invalidate_cache_range
- support RGMII_RXID PHY mode, to support mainline .dtb

Amit Singh Tomar (3):
  net: Add support for Broadcom GENETv5 Ethernet controller
  rpi4: Update memory map to accommodate scb devices
  rpi4: Enable GENET Ethernet controller

 arch/arm/mach-bcm283x/init.c |   6 +-
 configs/rpi_4_32b_defconfig  |   2 +
 configs/rpi_4_defconfig      |   2 +
 configs/rpi_arm64_defconfig  |   1 +
 drivers/net/Kconfig          |   7 +
 drivers/net/Makefile         |   1 +
 drivers/net/bcmgenet.c       | 729 +++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 745 insertions(+), 3 deletions(-)
 create mode 100644 drivers/net/bcmgenet.c

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2.14.5