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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>
This commit is contained in:
Fabio Estevam 2017-12-15 00:24:58 -02:00 committed by Shawn Guo
parent 38f17f9bbb
commit 1f1b7ec671
1 changed files with 14 additions and 0 deletions
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14
arch/arm/boot/dts/imx6sx.dtsi
View File

@ -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";
};
};