linux-toradex.git/arch/mips/bcm63xx/dev-enet.c, branch v4.19

bcm63xx_enet: use platform data for dma channel numbers

2017-12-19T16:07:16+00:00

To reduce the reliance on device ids, pass the dma channel numbers to
the enet devices as platform data.

Signed-off-by: Jonas Gorski 
Signed-off-by: David S. Miller

MIPS: BCM63xx: Remove !RUNTIME_DETECT usage from enet code

2014-07-30T13:24:01+00:00

Cc: linux-mips@linux-mips.org
Cc: John Crispin 
Cc: Maxime Bizon 
Cc: Florian Fainelli 
Cc: Kevin Cernekee 
Patchwork: https://patchwork.linux-mips.org/patch/7270/
Signed-off-by: Ralf Baechle

bcm63xx_enet: add support Broadcom BCM6345 Ethernet

2013-06-14T00:22:08+00:00

This patch adds support for the Broadcom BCM6345 SoC Ethernet. BCM6345
has a slightly different and older DMA engine which requires the
following modifications:

- the width of the DMA channels on BCM6345 is 64 bytes vs 16 bytes,
  which means that the helpers enet_dma{c,s} need to account for this
  channel width and we can no longer use macros

- BCM6345 DMA engine does not have any internal SRAM for transfering
  buffers

- BCM6345 buffer allocation and flow control is not per-channel but
  global (done in RSET_ENETDMA)

- the DMA engine bits are right-shifted by 3 compared to other DMA
  generations

- the DMA enable/interrupt masks are a little different (we need to
  enabled more bits for 6345)

- some register have the same meaning but are offsetted in the ENET_DMAC
  space so a lookup table is required to return the proper offset

The MAC itself is identical and requires no modifications to work.

Signed-off-by: Florian Fainelli 
Acked-by: Ralf Baechle 
Signed-off-by: David S. Miller

bcm63xx_enet: add support for Broadcom BCM63xx integrated gigabit switch

2013-06-10T21:28:28+00:00

Newer Broadcom BCM63xx SoCs: 6328, 6362 and 6368 have an integrated switch
which needs to be driven slightly differently from the traditional
external switches. This patch introduces changes in arch/mips/bcm63xx in order
to:

- register a bcm63xx_enetsw driver instead of bcm63xx_enet driver
- update DMA channels configuration & state RAM base addresses
- add a new platform data configuration knob to define the number of
  ports per switch/device and force link on some ports
- define the required switch registers

On the driver side, the following changes are required:

- the switch ports need to be polled to ensure the link is up and
  running and RX/TX can properly work
- basic switch configuration needs to be performed for the switch to
  forward packets to the CPU
- update the MIB counters since the integrated

Signed-off-by: Maxime Bizon 
Signed-off-by: Jonas Gorski 
Signed-off-by: David S. Miller

bcm63xx_enet: split DMA channel register accesses

2013-06-10T21:28:27+00:00

The current bcm63xx_enet driver always uses bcmenet_shared_base whenever
it needs to access DMA channel configuration space or access the DMA
channel state RAM. Split these register in 3 parts to be more accurate:

- global DMA configuration
- per DMA channel configuration space
- per DMA channel state RAM space

This is preliminary to support new chips where the global DMA
configuration remains the same, but there is a varying number of DMA
channels located at a different memory offset.

Signed-off-by: Maxime Bizon 
Signed-off-by: Jonas Gorski 
Signed-off-by: David S. Miller

MIPS: BCM63xx: Prevent second enet registration on BCM6338

2010-07-26T18:08:18+00:00

This SoC has only one ethernet MAC, so prevent registration of a second one.

Signed-off-by: Florian Fainelli 
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1482/
Signed-off-by: Ralf Baechle

MIPS: BCM63xx: Add integrated ethernet mac support.

2009-09-17T18:07:53+00:00

Signed-off-by: Maxime Bizon 
Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller 
Signed-off-by: Ralf Baechle