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[RFC,net-next,0/3] riscv: sophgo: Add ethernet support for SG2044

Message ID 20241101014327.513732-1-inochiama@gmail.com (mailing list archive)
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Series riscv: sophgo: Add ethernet support for SG2044 | expand

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Inochi Amaoto Nov. 1, 2024, 1:43 a.m. UTC 
The ethernet controller of SG2044 is Synopsys DesignWare IP with
custom clock. Add glue layer for it.

Since v2, these patch depends on that following patch that provides
helper function to compute rgmii clock, and this patch are marked as RFC:
https://lore.kernel.org/netdev/20241028-upstream_s32cc_gmac-v4-4-03618f10e3e2@oss.nxp.com/

Changed from v2:
- https://lore.kernel.org/netdev/20241025011000.244350-1-inochiama@gmail.com/
1. patch 1: merge the first and the second bindings patch to show the all
            compatible change.
2. patch 2: use of_device_compatible_match helper function to perform check.
2. patch 3: remove unused include and sort the left.
3. patch 3: fix wrong variable usage in sophgo_dwmac_fix_mac_speed
4. patch 3: drop unused variable in the patch.

Changed from v1:
- https://lore.kernel.org/netdev/20241021103617.653386-1-inochiama@gmail.com/
1. patch 2: remove sophgo,syscon as this mac delay is resolved.
2. patch 2: apply all the properties unconditionally.
3. patch 4: remove sophgo,syscon code as this mac delay is resolved.
4. patch 4: use the helper function to compute rgmii clock.
5. patch 4: use remove instead of remove_new for the platform driver.


Inochi Amaoto (3):
  dt-bindings: net: Add support for Sophgo SG2044 dwmac
  net: stmmac: platform: Add snps,dwmac-5.30a IP compatible string
  net: stmmac: Add glue layer for Sophgo SG2044 SoC

 .../devicetree/bindings/net/snps,dwmac.yaml   |   4 +
 .../bindings/net/sophgo,sg2044-dwmac.yaml     | 124 ++++++++++++++++++
 drivers/net/ethernet/stmicro/stmmac/Kconfig   |  11 ++
 drivers/net/ethernet/stmicro/stmmac/Makefile  |   1 +
 .../ethernet/stmicro/stmmac/dwmac-sophgo.c    | 105 +++++++++++++++
 .../ethernet/stmicro/stmmac/stmmac_platform.c |  17 ++-
 6 files changed, 257 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
 create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c

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