Re: [PATCH 1/6] dt-bindings: pci: amlogic,meson-pcie: Add G12A bindings
From: Andrew Murray
Date: Wed Sep 11 2019 - 08:22:55 EST
On Sun, Sep 08, 2019 at 01:42:53PM +0000, Neil Armstrong wrote:
> Add PCIE bindings for the Amlogic G12A SoC, the support is the same
> but the PHY is shared with USB3 to control the differential lines.
> Thus this adds a phy phandle to control the PHY, and sets invalid
> MIPI clock as optional for G12A.
Perhaps reword to "Thus this adds a phy phandle to control the PHY,
and only requires a MIPI clock for AXG SoC Family".
> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> .../devicetree/bindings/pci/amlogic,meson-pcie.txt | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
> diff --git a/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt b/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt
> index efa2c8b9b85a..84fdc422792e 100644
> --- a/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt
> +++ b/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt
> @@ -9,13 +9,16 @@ Additional properties are described here:
> Required properties:
> - compatible:
> - should contain "amlogic,axg-pcie" to identify the core.
> + should contain :
> + - "amlogic,axg-pcie" for AXG SoC Family
> + - "amlogic,g12a-pcie" for G12A SoC Family
> + to identify the core.
> - reg:
> should contain the configuration address space.
> - reg-names: Must be
> - "elbi" External local bus interface registers
> - "cfg" Meson specific registers
> - - "phy" Meson PCIE PHY registers
> + - "phy" Meson PCIE PHY registers for AXG SoC Family
> - "config" PCIe configuration space
> - reset-gpios: The GPIO to generate PCIe PERST# assert and deassert signal.
> - clocks: Must contain an entry for each entry in clock-names.
> @@ -23,12 +26,13 @@ Required properties:
> - "pclk" PCIe GEN 100M PLL clock
> - "port" PCIe_x(A or B) RC clock gate
> - "general" PCIe Phy clock
> - - "mipi" PCIe_x(A or B) 100M ref clock gate
> + - "mipi" PCIe_x(A or B) 100M ref clock gate for AXG SoC Family
> - resets: phandle to the reset lines.
> - reset-names: must contain "phy" "port" and "apb"
> - - "phy" Share PHY reset
> + - "phy" Share PHY reset for AXG SoC Family
> - "port" Port A or B reset
> - "apb" Share APB reset
> +- phys: should contain a phandle to the shared phy for G12A SoC Family
> - device_type:
> should be "pci". As specified in designware-pcie.txt