[PATCH v3 0/9] Enable networking support for StarFive JH7100 SoC

Cristian Ciocaltea
2023-12-15T20:41:30Z

This patch series adds ethernet support for the StarFive JH7100 SoC and makes it
available for the StarFive VisionFive V1 and BeagleV Starlight boards, although
I could only validate on the former SBC. Thank you Emil and Geert for helping
with tests on BeagleV!

The work is heavily based on the reference implementation [1] and depends the
SiFive Composable Cache controller and non-coherent DMA support provided by Emil
via [2] and [3].

*Update*: as of next-20231214, all dependencies have been merged.

[1] https://github.com/starfive-tech/linux/commits/visionfive
[2] https://lore.kernel.org/all/CAJM55Z_pdoGxRXbmBgJ5GbVWyeM1N6+LHihbNdT26Oo_qA5VYA@mail.gmail.com/
[3] https://lore.kernel.org/all/20231130151932.729708-1-emil.renner.berthing@canonical.com/

Changes in v3:
- Rebased series onto next-20231214 and dropped the ccache & DMA coherency
related patches (v2 06-08/12) handled by Emil via [3]
- Squashed PATCH v2 01/12 into PATCH v3 2/9, per Krzysztof's review
- Dropped incorrect PATCH v2 02/12
- Incorporated Emil's feedback; also added his Co-developed-by on all dts
patches
- Documented the need of adjusting RX internal delay in PATCH v3 8/9, per
Andrew's request
- Added clock fixes from Emil (PATCH v3 8-9/9) required to support 10/100Mb
link speeds
- v2:
https://lore.kernel.org/lkml/20231029042712.520010-1-cristian.ciocaltea@collabora.com/

Changes in v2:
- Dropped ccache PATCH 01-05 reworked by Emil via [2]
- Dropped already applied PATCH 06/12
- Added PATCH v2 01 to prepare snps-dwmac binding for JH7100 support
- Added PATCH v2 02-03 to provide some jh7110-dwmac binding optimizations
- Handled JH7110 conflicting work in PATCH 07 via PATCH v2 04
- Reworked PATCH 8 via PATCH v2 05, adding JH7100 quirk and dropped
starfive,gtxclk-dlychain DT property; also fixed register naming
- Added PATCH v2 08 providing DMA coherency related DT changes
- Updated PATCH 9 commit msg:
s/OF_DMA_DEFAULT_COHERENT/ARCH_DMA_DEFAULT_COHERENT/
- Replaced 'uncached-offset' property with 'sifive,cache-ops' in PATCH 10/12
and dropped 'sideband' reg
- Add new patch providing coherent DMA memory pool (PATCH v2 10)
- Updated PATCH 11/12 according to the stmmac glue layer changes in upstream
- Split PATCH 12/12 into PATCH v2 10-12 to handle individual gmac setup of
VisionFive v1 and BeagleV boards as they use different PHYs; also switched
phy-mode from "rgmii-tx" to "rgmii-id" (requires a reduction of
rx-internal-delay-ps by ~50%)
- Rebased series onto next-20231024
- v1:
https://lore.kernel.org/lkml/20230211031821.976408-1-cristian.ciocaltea@collabora.com/

Cristian Ciocaltea (7):
dt-bindings: net: starfive,jh7110-dwmac: Drop redundant reset
description
dt-bindings: net: starfive,jh7110-dwmac: Add JH7100 SoC compatible
net: stmmac: dwmac-starfive: Add support for JH7100 SoC
riscv: dts: starfive: jh7100: Add sysmain and gmac DT nodes
riscv: dts: starfive: jh7100-common: Setup pinmux and enable gmac
riscv: dts: starfive: visionfive-v1: Setup ethernet phy
riscv: dts: starfive: beaglev-starlight: Setup phy reset gpio

Emil Renner Berthing (2):
clk: starfive: Add flags argument to JH71X0__MUX macro
clk: starfive: jh7100: Add CLK_SET_RATE_PARENT to gmac_tx

.../devicetree/bindings/net/snps,dwmac.yaml | 3 +-
.../bindings/net/starfive,jh7110-dwmac.yaml | 75 +++++++++++-----
.../dts/starfive/jh7100-beaglev-starlight.dts | 7 ++
.../boot/dts/starfive/jh7100-common.dtsi | 85 +++++++++++++++++++
.../jh7100-starfive-visionfive-v1.dts | 7 ++
arch/riscv/boot/dts/starfive/jh7100.dtsi | 37 ++++++++
.../clk/starfive/clk-starfive-jh7100-audio.c | 2 +-
drivers/clk/starfive/clk-starfive-jh7100.c | 32 +++----
.../clk/starfive/clk-starfive-jh7110-aon.c | 6 +-
.../clk/starfive/clk-starfive-jh7110-isp.c | 2 +-
.../clk/starfive/clk-starfive-jh7110-sys.c | 26 +++---
drivers/clk/starfive/clk-starfive-jh71x0.h | 4 +-
drivers/net/ethernet/stmicro/stmmac/Kconfig | 6 +-
.../ethernet/stmicro/stmmac/dwmac-starfive.c | 32 ++++++-
14 files changed, 258 insertions(+), 66 deletions(-)

--
2.43.0