For devices in the RZ/G2L family, we have so far relied on U-Boot
correctly configuring the Ethernet interfaces in RGMII mode with
PVDD=1.8V before the kernel is booted. Instead, the required
configuration should be described in the device tree and activated
within the pinctrl driver.

Changes v1-v2:
  * Rebased on next-20240611.
  * Changed the approach taken in the pinctrl patches to be compatible
    with changes made by Prabhakar for RZ/V2H support. I haven't picked
    up Reviewed-by tags on these patches as they've changed a lot.
  * Clarified that patch 6/9 also affects RZ/Five.
  * No major changes to the dts patches so I've picked up Geert's
    Reviewed-by tags for these.

Paul Barker (9):
  pinctrl: renesas: rzg2l: Clarify OEN read/write support
  pinctrl: renesas: rzg2l: Clean up and refactor OEN read/write
    functions
  pinctrl: renesas: rzg2l: Support output enable on RZ/G2L
  arm64: dts: renesas: rzg2l: Enable Ethernet TXC output
  arm64: dts: renesas: rzg2lc: Enable Ethernet TXC output
  arm64: dts: renesas: rzg2ul: Enable Ethernet TXC output
  arm64: dts: renesas: rzg2l: Set Ethernet PVDD to 1.8V
  arm64: dts: renesas: rzg2lc: Set Ethernet PVDD to 1.8V
  arm64: dts: renesas: rzg2ul: Set Ethernet PVDD to 1.8V

 .../boot/dts/renesas/rzg2l-smarc-som.dtsi     |  86 ++++++----
 .../boot/dts/renesas/rzg2lc-smarc-som.dtsi    |  43 +++--
 .../boot/dts/renesas/rzg2ul-smarc-som.dtsi    |  86 ++++++----
 drivers/pinctrl/renesas/pinctrl-rzg2l.c       | 150 ++++++++++++------
 4 files changed, 235 insertions(+), 130 deletions(-)

-- 
2.39.2

On Tue, Jun 11, 2024 at 1:32 PM Paul Barker
<paul.barker.ct@bp.renesas.com> wrote:

> For devices in the RZ/G2L family, we have so far relied on U-Boot
> correctly configuring the Ethernet interfaces in RGMII mode with
> PVDD=1.8V before the kernel is booted. Instead, the required
> configuration should be described in the device tree and activated
> within the pinctrl driver.
>
> Changes v1-v2:
>   * Rebased on next-20240611.
>   * Changed the approach taken in the pinctrl patches to be compatible
>     with changes made by Prabhakar for RZ/V2H support. I haven't picked
>     up Reviewed-by tags on these patches as they've changed a lot.
>   * Clarified that patch 6/9 also affects RZ/Five.
>   * No major changes to the dts patches so I've picked up Geert's
>     Reviewed-by tags for these.

LGTM
Acked-by: Linus Walleij <linus.walleij@linaro.org>

But I expect Geert to pick up the patches and send me a pull request when
he's pleased with this.

Yours,
Linus Walleij