On Wed, May 2, 2018 at 12:12 AM, Chen-Yu Tsai <wens@xxxxxxxx> wrote: > Hi everyone, > > This is v2 of my R40 Ethernet support series. > > Changes since v1: > > - Default to fetching regmap from device pointed to by syscon phandle, > and falling back to syscon API if that fails. > > - Dropped .syscon_from_dev field in device data as a result of the > previous change. > > - Added a large comment block explaining the first change. > > - Simplified description of syscon property in sun8i-dwmac binding. > > - Regmap now only exposes the EMAC/GMAC register, but retains the > offset within its address space. > > - Added patches for A64, which reuse the same sun8i-dwmac changes. > > This series adds support for the DWMAC based Ethernet controller found > on the Allwinner R40 SoC. The controller is either a DWMAC clone or > DWMAC core with its registers rearranged. This is already supported by > the dwmac-sun8i driver. The glue layer control registers, unlike other > sun8i family SoCs, is not in the system controller region, but in the > clock control unit, like with the older A20 and A31 SoCs. > > While we reuse the bindings for dwmac-sun8i using a syscon phandle > reference, we need some custom plumbing for the clock driver to export > a regmap that only allows access to the GMAC register to the dwmac-sun8i > driver. An alternative would be to allow drivers to register custom > syscon devices with their own regmap and locking. > > Patch 1 converts the CLK_OF_DECLARE style clock driver to a platform > one, so the regmap introduced later has a struct device to tie to. > > Patch 2 adds a regmap that is exported by the clock driver for the > dwmac-sun8i driver to use. > > Patches 3, 4, and 5 clean up the dwmac-sun8i binding. > > Patch 6 adds device tree binding for Allwinner R40's Ethernet > controller. > > Patch 7 converts regmap access of the syscon region in the dwmac-sun8i > driver to regmap_field, in anticipation of different field widths on > the R40. > > Patch 8 introduces custom plumbing in the dwmac-sun8i driver to fetch > a regmap from another device, by looking up said device via a phandle, > then getting the regmap associated with that device. > > Patch 9 adds support for different or absent TX/RX delay chain ranges > to the dwmac-sun8i driver. > > Patch 10 adds support for the R40's ethernet controller. I should've mentioned that patches 3 ~ 10, and only these, should go through net-next. sunxi will handle the remaining clk, device tree, and soc driver patches. Thanks ChenYu > Patch 11 cleans up the Bananapi M2 Ultra device tree file. > > Patch 12 adds a GMAC device node and RGMII mode pinmux setting for the > R40. > > Patch 13 enables Ethernet on the Bananapi M2 Ultra. > > Patches 14 and 15 are for the A64. They convert the existing syscon > device to an SRAM controller device that exports a regmap. The needed > driver changes are in patch 14, and the device tree changes are in > patch 15. > > > Please have a look. > > Regards > ChenYu > > Chen-Yu Tsai (11): > dt-bindings: net: dwmac-sun8i: Clean up clock delay chain descriptions > dt-bindings: net: dwmac-sun8i: Sort syscon compatibles by alphabetical > order > dt-bindings: net: dwmac-sun8i: simplify description of syscon property > dt-bindings: net: dwmac-sun8i: Add binding for GMAC on Allwinner R40 > SoC > net: stmmac: dwmac-sun8i: Use regmap_field for syscon register access > net: stmmac: dwmac-sun8i: Allow getting syscon regmap from external > device > net: stmmac: dwmac-sun8i: Support different ranges for TX/RX delay > chains > net: stmmac: dwmac-sun8i: Add support for GMAC on Allwinner R40 SoC > ARM: dts: sun8i: r40: bananapi-m2-ultra: Sort device node dereferences > ARM: dts: sun8i: r40: Add device node and RGMII pinmux node for GMAC > ARM: dts: sun8i: r40: bananapi-m2-ultra: Enable GMAC ethernet > controller > > Icenowy Zheng (4): > clk: sunxi-ng: r40: rewrite init code to a platform driver > clk: sunxi-ng: r40: export a regmap to access the GMAC register > soc: sunxi: export a regmap for EMAC clock reg on A64 > arm64: dts: allwinner: a64: add SRAM controller device tree node > > .../devicetree/bindings/net/dwmac-sun8i.txt | 21 +-- > .../boot/dts/sun8i-r40-bananapi-m2-ultra.dts | 99 ++++++++----- > arch/arm/boot/dts/sun8i-r40.dtsi | 34 +++++ > arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 23 ++- > drivers/clk/sunxi-ng/ccu-sun8i-r40.c | 72 +++++++-- > .../net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 139 +++++++++++++++--- > drivers/soc/sunxi/sunxi_sram.c | 57 ++++++- > 7 files changed, 364 insertions(+), 81 deletions(-) > > -- > 2.17.0 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
