diff options
| author | Marek Vasut <marex@denx.de> | 2023-05-15 17:51:02 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2023-05-27 16:23:26 +0800 |
| commit | 64d45a1a27159229fd55deab9eb2001add8adc9b (patch) | |
| tree | a82f62dd5faac6557f31200459b2353837e5d6f1 /arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts | |
| parent | cbd3ef64eb9d1be9ec647411547bc7bb8409b11f (diff) | |
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 <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts | 13 |
1 files 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 = <IMX8_PCIE_REFCLK_PAD_INPUT>; status = "okay"; |