net: ethernet: mtk_eth_soc: add support for in-SoC SRAM

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MT7981, MT7986 and MT7988 come with in-SoC SRAM dedicated for Ethernet
DMA rings. Support using the SRAM without breaking existing device tree
bindings, ie. only new SoC starting from MT7988 will have the SRAM
declared as additional resource in device tree. For MT7981 and MT7986
an offset on top of the main I/O base is used.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/e45e0f230c63ad58869e8fe35b95a2fb8925b625.1692721443.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Daniel Golle 2023-08-22 17:32:54 +01:00 • committed by Jakub Kicinski

parent 88c1e6efb7

commit ebb1e4f9cf

2 changed files with 78 additions and 22 deletions

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88

drivers/net/ethernet/mediatek/mtk_eth_soc.c

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12

drivers/net/ethernet/mediatek/mtk_eth_soc.h

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