[PATCH v2 0/2] net: macb: fix dma usage

[Steffen Trumtrar]

The rx_buffer is only dma_alloc'ed but never properly flushed.
Fix that.

While at it, also use proper volatile access instead of sw barriers.

Signed-off-by: Steffen Trumtrar <s.trumtrar at pengutronix.de>
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Changes in v2:
- change dma_map_single to DMA_FROM_DEVICE
- drop (unsigned long) casts in dma_sync_*
- rework writel/setbits/clearbits to keep semantics
- Link to v1: https://lore.barebox.org/20231128-v2023-08-0-topic-macb-v1-0-9faff73bc990@pengutronix.de

---
Steffen Trumtrar (2):
      net: macb: fix dma_alloc for rx_buffer
      net: macb: convert to volatile accesses

 drivers/net/macb.c | 125 ++++++++++++++++++++++++++++++-----------------------
 1 file changed, 70 insertions(+), 55 deletions(-)
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base-commit: 5f200dd534c848dfa5d948334b6373f0310b8f73
change-id: 20231128-v2023-08-0-topic-macb-0c13ed91179d

Best regards,
-- 
Steffen Trumtrar <s.trumtrar at pengutronix.de>