[PATCH 1/2] arm64: dts: ti: k3-am62/a/p: use sub-node for USB_PHY_CTRL registers
Andrew Davis
afd at ti.com
Fri Jan 26 07:00:57 PST 2024
On 1/26/24 6:59 AM, Roger Quadros wrote:
> Exposing the entire CTRL_MMR space to syscon is not a good idea.
> Add sub-nodes for USB0_PHY_CTRL and USB1_PHY_CTRL and use them
> in the USB0/USB1 nodes.
>
> Signed-off-by: Roger Quadros <rogerq at kernel.org>
> ---
> arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 4 ++--
> arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi | 10 ++++++++++
> arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 4 ++--
> arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi | 10 ++++++++++
> arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi | 10 ++++++++++
> 5 files changed, 34 insertions(+), 4 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> index 464b7565d085..9432ed344d52 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> @@ -625,7 +625,7 @@ usbss0: dwc3-usb at f900000 {
> reg = <0x00 0x0f900000 0x00 0x800>;
> clocks = <&k3_clks 161 3>;
> clock-names = "ref";
> - ti,syscon-phy-pll-refclk = <&wkup_conf 0x4008>;
> + ti,syscon-phy-pll-refclk = <&usb0_phy_ctrl 0x0>;
> #address-cells = <2>;
> #size-cells = <2>;
> power-domains = <&k3_pds 178 TI_SCI_PD_EXCLUSIVE>;
> @@ -648,7 +648,7 @@ usbss1: dwc3-usb at f910000 {
> reg = <0x00 0x0f910000 0x00 0x800>;
> clocks = <&k3_clks 162 3>;
> clock-names = "ref";
> - ti,syscon-phy-pll-refclk = <&wkup_conf 0x4018>;
> + ti,syscon-phy-pll-refclk = <&usb1_phy_ctrl 0x0>;
> #address-cells = <2>;
> #size-cells = <2>;
> power-domains = <&k3_pds 179 TI_SCI_PD_EXCLUSIVE>;
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> index fef76f52a52e..bd09662a3c29 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> @@ -19,6 +19,16 @@ chipid: chipid at 14 {
> compatible = "ti,am654-chipid";
> reg = <0x14 0x4>;
> };
> +
> + usb0_phy_ctrl: syscon at 4008 {
> + compatible = "syscon";
You'll want to add a binding for this to the simple syscon list.
See this patch for an example[0]. Otherwise this gives a DT check
warning.
Also, adding the new nodes for AM62p should be moved to the
next patch in this series. Fixing AM62 and AM62a should be
a standalone patch.
Andrew
[0] commit cb523495ee2a ("dt-bindings: mfd: syscon: Add ti,am654-dss-oldi-io-ctrl compatible")
> + reg = <0x4008 0x4>;
> + };
> +
> + usb1_phy_ctrl: syscon at 4018 {
> + compatible = "syscon";
> + reg = <0x4018 0x4>;
> + };
> };
>
> wkup_uart0: serial at 2b300000 {
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
> index f0b8c9ab1459..8311c7c44cd3 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi
> @@ -566,7 +566,7 @@ usbss0: dwc3-usb at f900000 {
> reg = <0x00 0x0f900000 0x00 0x800>;
> clocks = <&k3_clks 161 3>;
> clock-names = "ref";
> - ti,syscon-phy-pll-refclk = <&wkup_conf 0x4008>;
> + ti,syscon-phy-pll-refclk = <&usb0_phy_ctrl 0x0>;
> #address-cells = <2>;
> #size-cells = <2>;
> power-domains = <&k3_pds 178 TI_SCI_PD_EXCLUSIVE>;
> @@ -589,7 +589,7 @@ usbss1: dwc3-usb at f910000 {
> reg = <0x00 0x0f910000 0x00 0x800>;
> clocks = <&k3_clks 162 3>;
> clock-names = "ref";
> - ti,syscon-phy-pll-refclk = <&wkup_conf 0x4018>;
> + ti,syscon-phy-pll-refclk = <&usb1_phy_ctrl 0x0>;
> #address-cells = <2>;
> #size-cells = <2>;
> power-domains = <&k3_pds 179 TI_SCI_PD_EXCLUSIVE>;
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
> index 4e8279fa01e1..26e9fd9da78f 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
> @@ -17,6 +17,16 @@ chipid: chipid at 14 {
> compatible = "ti,am654-chipid";
> reg = <0x14 0x4>;
> };
> +
> + usb0_phy_ctrl: syscon at 4008 {
> + compatible = "syscon";
> + reg = <0x4008 0x4>;
> + };
> +
> + usb1_phy_ctrl: syscon at 4018 {
> + compatible = "syscon";
> + reg = <0x4018 0x4>;
> + };
> };
>
> wkup_uart0: serial at 2b300000 {
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
> index 19f42b39394e..0893e63c399a 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
> @@ -18,6 +18,16 @@ chipid: chipid at 14 {
> reg = <0x14 0x4>;
> bootph-all;
> };
> +
> + usb0_phy_ctrl: syscon at 4008 {
> + compatible = "syscon";
> + reg = <0x4008 0x4>;
> + };
> +
> + usb1_phy_ctrl: syscon at 4018 {
> + compatible = "syscon";
> + reg = <0x4018 0x4>;
> + };
> };
>
> wkup_uart0: serial at 2b300000 {
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