From 64d45a1a27159229fd55deab9eb2001add8adc9b Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 15 May 2023 17:51:02 +0200 Subject: [PATCH] arm64: dts: imx8mp: Describe PCIe clock generator on DH electronics i.MX8M Plus DHCOM on PDK3 The PDK3 carrier board contains a PCIe clock generator which is used to supply the PCIe clock lanes. This generator is always on, unless external CLKREQ signal toggles an output off, but this is handled in hardware. The generator does however have I2C interface, describe it in DT. Signed-off-by: Marek Vasut Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts index b5e76b992a10..24dc58b3404f 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts @@ -23,10 +23,10 @@ stdout-path = &uart1; }; - clk_pcie: clock-pcie { + clk_xtal25: clock-xtal25 { compatible = "fixed-clock"; #clock-cells = <0>; - clock-frequency = <100000000>; + clock-frequency = <25000000>; }; connector { @@ -203,6 +203,13 @@ pagesize = <16>; reg = <0x54>; }; + + pcieclk: clock@6b { + compatible = "skyworks,si52144"; + reg = <0x6b>; + clocks = <&clk_xtal25>; + #clock-cells = <1>; + }; }; i2cmuxed1: i2c@1 { /* HDMI DDC I2C */ @@ -244,7 +251,7 @@ }; &pcie_phy { - clocks = <&clk_pcie>; + clocks = <&pcieclk 1>; clock-names = "ref"; fsl,refclk-pad-mode = ; status = "okay"; -- 2.20.1