[U-Boot] [RFC v4 00/15] bmips: add bcm6348-enet support

[Álvaro Fernández Rojas]

In order to add bcm6348-enet support, dma-uclass must be extended to support
dma channels and reworked to operate like the other dm uclass (clk, reset...).

This is a RFC, so please give you feedback on the things that I should
fix or rework.

v4: Fix issues reported by Grygorii Strashko and other fixes:
 - Remove usage of net_rx_packets as buffer from bcm6348-iudma.
 - Allocate dynamic rx buffer on bcm6348-iudma.
 - Copy received dma buffer to net_rx_packets in order to avoid possible
 dma overwrites.
 - Check dma errors and discard invalid packets.
 - Reset dma rx channel when sending a new packet to prevent flow control
 issues.
 - Fix packet casting on bcm6348_eth_recv/send.
v3: Introduce changes reported by Simon Glass:
 - Improve dma-uclass.h documentation.
 - Switch to live tree API.
v2: Introduce changes reported by Vignesh:
 - Respect current dma implementation.
 - Let dma_memcpy find a compatible dma device.
Other changes:
 - Fix bcm6348-iudma rx burst config.

Álvaro Fernández Rojas (15):
  dma: move dma_ops to dma-uclass.h
  dma: add channels support
  dma: add bcm6348-iudma support
  bmips: bcm6338: add bcm6348-iudma support
  bmips: bcm6348: add bcm6348-iudma support
  bmips: bcm6358: add bcm6348-iudma support
  phy: add support for internal phys
  net: add support for bcm6348-enet
  bmips: bcm6338: add support for bcm6348-enet
  bmips: enable f at st1704 enet support
  bmips: bcm6348: add support for bcm6348-enet
  bmips: enable ct-5361 enet support
  bmips: bcm6358: add support for bcm6348-enet
  bmips: enable hg556a enet support
  bmips: enable nb4-ser enet support

 arch/mips/dts/brcm,bcm6338.dtsi       |  29 ++
 arch/mips/dts/brcm,bcm6348.dtsi       |  42 +++
 arch/mips/dts/brcm,bcm6358.dtsi       |  46 +++
 arch/mips/dts/comtrend,ct-5361.dts    |  12 +
 arch/mips/dts/huawei,hg556a.dts       |  12 +
 arch/mips/dts/sagem,f at st1704.dts      |  12 +
 arch/mips/dts/sfr,nb4-ser.dts         |  24 ++
 configs/comtrend_ct5361_ram_defconfig |   8 +-
 configs/huawei_hg556a_ram_defconfig   |   8 +-
 configs/sagem_f at st1704_ram_defconfig  |   9 +-
 configs/sfr_nb4-ser_ram_defconfig     |   8 +-
 drivers/dma/Kconfig                   |  16 +
 drivers/dma/Makefile                  |   1 +
 drivers/dma/bcm6348-iudma.c           | 545 ++++++++++++++++++++++++++++++++++
 drivers/dma/dma-uclass.c              | 191 +++++++++++-
 drivers/net/Kconfig                   |  10 +
 drivers/net/Makefile                  |   1 +
 drivers/net/bcm6348-eth.c             | 530 +++++++++++++++++++++++++++++++++
 include/configs/bmips_common.h        |   5 +-
 include/dma-uclass.h                  | 117 ++++++++
 include/dma.h                         | 196 ++++++++++--
 include/dt-bindings/dma/bcm6338-dma.h |  15 +
 include/dt-bindings/dma/bcm6348-dma.h |  17 ++
 include/dt-bindings/dma/bcm6358-dma.h |  17 ++
 include/phy.h                         |   2 +
 25 files changed, 1837 insertions(+), 36 deletions(-)
 create mode 100644 drivers/dma/bcm6348-iudma.c
 create mode 100644 drivers/net/bcm6348-eth.c
 create mode 100644 include/dma-uclass.h
 create mode 100644 include/dt-bindings/dma/bcm6338-dma.h
 create mode 100644 include/dt-bindings/dma/bcm6348-dma.h
 create mode 100644 include/dt-bindings/dma/bcm6358-dma.h

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2.11.0