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Date: Sun, 27 Feb 2022 00:01:32 +0100
From: Johan Jonker <jbx6244@...il.com>
To: Peter Geis <pgwipeout@...il.com>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Heiko Stuebner <heiko@...ech.de>
Cc: linux-rockchip@...ts.infradead.org, michael.riesch@...fvision.net,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 09/11] arm64: dts: rockchip: add rk356x dwc3 usb3 nodes
On 2/26/22 19:41, Peter Geis wrote:
> Add the dwc3 device nodes to the rk356x device trees.
> The rk3566 has one usb2 capable dwc3 otg controller and one usb3 capable
> dwc3 host controller.
> The rk3568 has one usb3 capable dwc3 otg controller and one usb3 capable
> dwc3 host controller.
>
> Signed-off-by: Peter Geis <pgwipeout@...il.com>
> ---
> arch/arm64/boot/dts/rockchip/rk3566.dtsi | 12 +++++++
> arch/arm64/boot/dts/rockchip/rk3568.dtsi | 9 +++++
> arch/arm64/boot/dts/rockchip/rk356x.dtsi | 45 +++++++++++++++++++++++-
> 3 files changed, 65 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3566.dtsi b/arch/arm64/boot/dts/rockchip/rk3566.dtsi
> index 3839eef5e4f7..a57eb68faba2 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3566.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3566.dtsi
> @@ -6,6 +6,10 @@ / {
> compatible = "rockchip,rk3566";
> };
>
> +&pipegrf {
> + compatible = "rockchip,rk3566-pipe-grf", "syscon";
> +};
> +
> &power {
> power-domain@...568_PD_PIPE {
> reg = <RK3568_PD_PIPE>;
> @@ -18,3 +22,11 @@ power-domain@...568_PD_PIPE {
> #power-domain-cells = <0>;
> };
> };
> +
> +&usb_host0_xhci {
> + phys = <&usb2phy0_otg>;
> + phy-names = "usb2-phy";
> + extcon = <&usb2phy0>;
> + maximum-speed = "high-speed";
> + snps,dis_u2_susphy_quirk;
> +};
> diff --git a/arch/arm64/boot/dts/rockchip/rk3568.dtsi b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> index 5b0f528d6818..8ba9334f9753 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
> @@ -99,6 +99,10 @@ opp-1992000000 {
> };
> };
>
> +&pipegrf {
> + compatible = "rockchip,rk3568-pipe-grf", "syscon";
> +};
> +
> &power {
> power-domain@...568_PD_PIPE {
> reg = <RK3568_PD_PIPE>;
> @@ -114,3 +118,8 @@ power-domain@...568_PD_PIPE {
> #power-domain-cells = <0>;
> };
> };
> +
> +&usb_host0_xhci {
> + phys = <&usb2phy0_otg>, <&combphy0 PHY_TYPE_USB3>;
> + phy-names = "usb2-phy", "usb3-phy";
> +};
> diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> index 7cdef800cb3c..b22e5a514ad7 100644
> --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
> @@ -230,6 +230,50 @@ scmi_shmem: sram@0 {
> };
> };
>
> + usb_host0_xhci: usb@...00000 {
> + compatible = "rockchip,rk3568-dwc3", "snps,dwc3";
> + reg = <0x0 0xfcc00000 0x0 0x400000>;
> + interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cru CLK_USB3OTG0_REF>, <&cru CLK_USB3OTG0_SUSPEND>,
> + <&cru ACLK_USB3OTG0>;
> + clock-names = "ref_clk", "suspend_clk",
> + "bus_clk";
> + dr_mode = "host";
> + phy_type = "utmi_wide";
> + power-domains = <&power RK3568_PD_PIPE>;
When both usb_host0_xhci and usb_host1_xhci are connected to a usb2phy
and the combphy's disabled there's no PCLK_PIPE enabled.
Fix logic for RK3568_PD_PIPE by adding the USB3 clocks.
> + resets = <&cru SRST_USB3OTG0>;
> + reset-names = "usb3-otg";
remove
snps,dwc3.yaml only mentions the "resets" because
devm_reset_control_array_get_optional_shared is used.
reset-names is only a rk3399 legacy that I included due to the YAML
conversion.
With unevaluatedProperties now working "resets" also could be removed
from rockchip,dwc3.yaml I think.
https://github.com/torvalds/linux/commit/2f8e928408885dad5d8d6afefacb82100b6b62c7
Added properties for rk3399 are:
power-domains
resets
reset-names
> + snps,dis_enblslpm_quirk;
> + snps,dis-u2-freeclk-exists-quirk;
> + snps,dis-del-phy-power-chg-quirk;
> + snps,dis-tx-ipgap-linecheck-quirk;
sort
> + snps,xhci-trb-ent-quirk;
???
check snps,dwc3.yaml
> + status = "disabled";
> + };
> +
> + usb_host1_xhci: usb@...00000 {
> + compatible = "rockchip,rk3568-dwc3", "snps,dwc3";
> + reg = <0x0 0xfd000000 0x0 0x400000>;
> + interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cru CLK_USB3OTG1_REF>, <&cru CLK_USB3OTG1_SUSPEND>,
> + <&cru ACLK_USB3OTG1>;
> + clock-names = "ref_clk", "suspend_clk",
> + "bus_clk";
> + dr_mode = "host";
> + phys = <&usb2phy0_host>, <&combphy1 PHY_TYPE_USB3>;
> + phy-names = "usb2-phy", "usb3-phy";
> + phy_type = "utmi_wide";
> + power-domains = <&power RK3568_PD_PIPE>;
dito
> + resets = <&cru SRST_USB3OTG1>;
> + reset-names = "usb3-otg";
remove
> + snps,dis_enblslpm_quirk;
> + snps,dis-u2-freeclk-exists-quirk;
> + snps,dis_u2_susphy_quirk;
> + snps,dis-del-phy-power-chg-quirk;
> + snps,dis-tx-ipgap-linecheck-quirk;
sort
> + status = "disabled";
> + };
> +
> gic: interrupt-controller@...00000 {
> compatible = "arm,gic-v3";
> reg = <0x0 0xfd400000 0 0x10000>, /* GICD */
> @@ -297,7 +341,6 @@ pmu_io_domains: io-domains {
> };
>
> pipegrf: syscon@...50000 {
> - compatible = "rockchip,rk3568-pipe-grf", "syscon";
> reg = <0x0 0xfdc50000 0x0 0x1000>;
> };
>
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