Commit 1f1b7ec6 authored Dec 15, 2017 by Fabio Estevam Committed by Shawn Guo Dec 26, 2017

ARM: dts: imx6sx: Add support for PCI power domain



Previously PCI support was working because the bootloader has previously
powered up the PCI power domain.

Represent the PCI power domain, so that PCI is functional without
relying on the PCI support from the bootloader.

Tested on a imx6sx-sdb board with no PCI support in the bootloader.

Reported-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

parent 38f17f9b

arch/arm/boot/dts/imx6sx.dtsi

+14 −0

Original line number	Diff line number	Diff line
		@@ -760,6 +760,19 @@
		#interrupt-cells = <3>;
		interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-parent = <&intc>;
		clocks = <&clks IMX6SX_CLK_IPG>;
		clock-names = "ipg";

		pgc {
		#address-cells = <1>;
		#size-cells = <0>;

		pd_pci: power-domain@3 {
		reg = <3>;
		#power-domain-cells = <0>;
		power-supply = <&reg_pcie>;
		};
		};
		};

		iomuxc: iomuxc@20e0000 {
		@@ -1338,6 +1351,7 @@
		<&clks IMX6SX_CLK_PCIE_REF_125M>,
		<&clks IMX6SX_CLK_DISPLAY_AXI>;
		clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_inbound_axi";
		power-domains = <&pd_pci>;
		status = "disabled";
		};
		};

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