linux-stable/arch/arm/boot/dts/imx6qp-sabresd.dts
Richard Zhu 9baabac707 ARM: dts: imx6qp-sabresd: Enable PCIe support
In the i.MX6QP sabresd board(sch-28857) design, one external oscillator
is powered up by vgen3 and used as the PCIe reference clock source by
the endpoint device.

If RC uses this oscillator as reference clock too, PLL6(ENET PLL) would
has to be in bypass mode, and ENET clocks would be messed up.

To keep things simple, let RC use the internal PLL as reference clock
and set vgen3 always on to enable the external oscillator for endpoint
device on i.MX6QP sabresd board.

NOTE: This reference clock setup is used to pass the GEN2 TX compliance
tests, and isn't recommended as a setup in the end-user design.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-02-22 14:57:30 +08:00

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// SPDX-License-Identifier: GPL-2.0+ OR MIT
//
// Copyright 2016 Freescale Semiconductor, Inc.
/dts-v1/;
#include "imx6qp.dtsi"
#include "imx6qdl-sabresd.dtsi"
/ {
model = "Freescale i.MX6 Quad Plus SABRE Smart Device Board";
compatible = "fsl,imx6qp-sabresd", "fsl,imx6qp";
};
&reg_arm {
vin-supply = <&sw2_reg>;
};
&iomuxc {
imx6qdl-sabresd {
pinctrl_usdhc2: usdhc2grp {
fsl,pins = <
MX6QDL_PAD_SD2_CMD__SD2_CMD 0x17059
MX6QDL_PAD_SD2_CLK__SD2_CLK 0x10071
MX6QDL_PAD_SD2_DAT0__SD2_DATA0 0x17059
MX6QDL_PAD_SD2_DAT1__SD2_DATA1 0x17059
MX6QDL_PAD_SD2_DAT2__SD2_DATA2 0x17059
MX6QDL_PAD_SD2_DAT3__SD2_DATA3 0x17059
MX6QDL_PAD_NANDF_D4__SD2_DATA4 0x17059
MX6QDL_PAD_NANDF_D5__SD2_DATA5 0x17059
MX6QDL_PAD_NANDF_D6__SD2_DATA6 0x17059
MX6QDL_PAD_NANDF_D7__SD2_DATA7 0x17059
>;
};
pinctrl_usdhc3: usdhc3grp {
fsl,pins = <
MX6QDL_PAD_SD3_CMD__SD3_CMD 0x17059
MX6QDL_PAD_SD3_CLK__SD3_CLK 0x10071
MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x17059
MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x17059
MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x17059
MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x17059
MX6QDL_PAD_SD3_DAT4__SD3_DATA4 0x17059
MX6QDL_PAD_SD3_DAT5__SD3_DATA5 0x17059
MX6QDL_PAD_SD3_DAT6__SD3_DATA6 0x17059
MX6QDL_PAD_SD3_DAT7__SD3_DATA7 0x17059
>;
};
};
};
&vgen3_reg {
regulator-always-on;
};
&pcie {
status = "okay";
};
&sata {
status = "okay";
};