[PATCH v4 0/2] arm64: dts: rockchip: Add ArmSoM CM5 and CM5-IO

[Jiaxing Hu]

Add mainline support for the ArmSoM CM5, an RK3576 compute module, and
its CM5-IO carrier board.

Patch 1 adds the binding, patch 2 the module dtsi and the carrier dts.

The on-module YT8531 PHY has no crystal and needs the SoC 25 MHz
reference clock (clk_mac_refout). Ungating it for RGMII needs a small
dwmac-rk change sent separately to netdev [1]; the clock is optional so
this DTS applies without it.

Tested on a CM5-IO: the YT8531 links at 1000 Mbit/s; RK806, HYM8563,
eMMC, microSD, the USB3 hub and the PCIe root complex all probe.
dtbs_check is clean.

Sorry about the v3 traffic: it went out twice because my mail provider
accepted the first copy but then held it for hours before delivering, so
a resend and the original both landed. That is fixed now.

Changes in v4:
- Use phy-mode = "rgmii-id" and let the YT8531 add both RGMII delays
  internally; drop the MAC tx_delay/rx_delay. The PCB does not use long
  clock lines, so rgmii-id is the correct description, and this matches
  the other rk3576 boards. Re-tested: link still comes up at 1000 Mbit/s
  (Andrew Lunn).
- Drop the redundant clocks/assigned-clocks on the PHY node; the 25 MHz
  reference is enabled and rated through clk_mac_refout on the gmac node,
  and clock properties on an MDIO child are not processed (sashiko-bot).
- Enable &sai6, the I2S CPU DAI the HDMI sound card needs to probe
  (sashiko-bot).
- Pick up Krzysztof's Acked-by on patch 1.

Changes in v3:
- Remove the ES8388 codec from the file header and the i2c0 block comment
  (the node was dropped in v2 but the comments still named it).
- Use gpios instead of gpio in the vcc_3v3_pcie fixed regulator.

Changes in v2:
- Type-C DP alt-mode: name the altmodes child "displayport" and make svid
  a /bits/ 16 value; drop the undocumented svid from &usbdp_phy and add
  the missing mode-switch.
- Move the FUSB302 role-switch endpoint into the connector's ports and
  rename the node to usb-typec@22.
- Drop the ES8388 node and the unreferenced gmac0_rst, bt_reg_on and
  wifi_host_wake_irq pinctrls.
- Rename the wifi-poweren-gpio pinctrl node (collided with
  gpio-consumer.yaml).
- Describe the PHY reset at the MDIO bus level rather than with the
  deprecated snps,reset-gpios.

[1] net: stmmac: dwmac-rk: enable the reference clock for output mode

Jiaxing Hu (2):
  dt-bindings: arm: rockchip: Add ArmSoM CM5 and CM5-IO
  arm64: dts: rockchip: Add ArmSoM CM5 and CM5-IO

 .../devicetree/bindings/arm/rockchip.yaml     |   7 +
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3576-armsom-cm5-io.dts     | 402 +++++++++++++
 .../boot/dts/rockchip/rk3576-armsom-cm5.dtsi  | 558 ++++++++++++++++++
 4 files changed, 968 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-armsom-cm5-io.dts
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-armsom-cm5.dtsi

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2.43.0