[PATCH v2 0/3] Ethernet support for Raspberry Pi 4

[LABBE Corentin <clabbe@baylibre.com>]

On Fri, Jan 17, 2020 at 01:20:44AM +0000, Andre Przywara wrote:
> 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 addresses the comments by the diligent reviewers and testers,
> for a changelog see below.
> To see the individual 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.
> 
> I dropped the Tested-by's, as there were changes in the code. Happy
> to reapply them when people confirm that it still works for them.
> 
> Cheers,
> Andre.
> 
> [1] https://github.com/apritzel/u-boot/commits/rpi4-eth-v2
> 
> 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       | 722 +++++++++++++++++++++++++++++++++++++++++++
>  7 files changed, 738 insertions(+), 3 deletions(-)
>  create mode 100644 drivers/net/bcmgenet.c
> 
> -- 
> 2.14.5
> 

Hello

I have tested it again and grabbing DHCP and doing TFTP works.
But I still fail to boot any kernel.

U-Boot 2020.01-00660-gec13baddca (Jan 21 2020 - 11:38:05 +0100)
DRAM:  3.9 GiB
RPI 4 Model B (0xc03111)
MMC:   emmc2 at 7e340000: 0, mmcnr at 7e300000: 1
Loading Environment from FAT... *** Warning - bad CRC, using default environment
In:    serial
Out:   serial
Err:   serial
Net:   eth0: genet at 7d580000

dhcp

genet at 7d580000 Waiting for PHY auto negotiation to complete....... done
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
DHCP client bound to address 192.168.66.27 (1255 ms)

I use 0x80000 for kernel, 0x02700000 for RAMfs, 0x02400000 for DTB and booti 0x00080000 0x02700000 0x02400000 for starting kernel.
Both mainline kernel and rpi kernel wont boot.

But this is unrelated to your serie.
Tested-by: Corentin Labbe <clabbe@baylibre.com>

Thanks
Regards