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| author | Niklas Cassel <cassel@kernel.org> | 2024-06-07 13:14:33 +0200 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2024-06-28 14:02:38 +0200 |
| commit | 40658534756f8369e93b84fa75c20bde6528cb82 (patch) | |
| tree | 1de4f3e125ea7ce00efa6b74ac7e55077acfa934 | |
| parent | 7ef44e179af0e84962b5c450f09ea92a427981d8 (diff) | |
| download | linux-stable-40658534756f8369e93b84fa75c20bde6528cb82.tar.gz linux-stable-40658534756f8369e93b84fa75c20bde6528cb82.tar.bz2 linux-stable-40658534756f8369e93b84fa75c20bde6528cb82.zip | |
arm64: dts: rockchip: Add rock5b overlays for PCIe endpoint mode
Add rock5b overlays for PCIe endpoint mode support.
If using the rock5b as an endpoint against a normal PC, only the
rk3588-rock-5b-pcie-ep.dtbo needs to be applied.
If using two rock5b:s, with one board as EP and the other board as RC,
rk3588-rock-5b-pcie-ep.dtbo and rk3588-rock-5b-pcie-srns.dtbo has to
be applied to the respective boards.
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/20240607-rockchip-pcie-ep-v1-v5-13-0a042d6b0049@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3588-rock-5b-pcie-ep.dtso | 25 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3588-rock-5b-pcie-srns.dtso | 16 |
3 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile index 5775cdd4d056..adfb168759dd 100644 --- a/arch/arm64/boot/dts/rockchip/Makefile +++ b/arch/arm64/boot/dts/rockchip/Makefile @@ -129,6 +129,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-ok3588-c.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-orangepi-5-plus.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-quartzpro64.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b.dtb +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b-pcie-ep.dtbo +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-rock-5b-pcie-srns.dtbo dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-tiger-haikou.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-toybrick-x0.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-turing-rk1.dtb diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-pcie-ep.dtso b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-pcie-ep.dtso new file mode 100644 index 000000000000..672d748fcc67 --- /dev/null +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-pcie-ep.dtso @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * DT-overlay to run the PCIe3_4L Dual Mode controller in Endpoint mode + * in the SRNS (Separate Reference Clock No Spread) configuration. + * + * NOTE: If using a setup with two ROCK 5B:s, with one board running in + * RC mode and the other board running in EP mode, see also the device + * tree overlay: rk3588-rock-5b-pcie-srns.dtso. + */ + +/dts-v1/; +/plugin/; + +&pcie30phy { + rockchip,rx-common-refclk-mode = <0 0 0 0>; +}; + +&pcie3x4 { + status = "disabled"; +}; + +&pcie3x4_ep { + vpcie3v3-supply = <&vcc3v3_pcie30>; + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-pcie-srns.dtso b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-pcie-srns.dtso new file mode 100644 index 000000000000..1a0f1af65c43 --- /dev/null +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b-pcie-srns.dtso @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * DT-overlay to run the PCIe3_4L Dual Mode controller in Root Complex + * mode in the SRNS (Separate Reference Clock No Spread) configuration. + * + * This device tree overlay is only needed (on the RC side) when running + * a setup with two ROCK 5B:s, with one board running in RC mode and the + * other board running in EP mode. + */ + +/dts-v1/; +/plugin/; + +&pcie30phy { + rockchip,rx-common-refclk-mode = <0 0 0 0>; +}; |