| Message ID | 20221012055602.1544944-7-uwu@icenowy.me (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | SUNIV USB and PopStick support (and updating mailmap) | expand |
On Wed, 12 Oct 2022 13:55:58 +0800 Icenowy Zheng <uwu@icenowy.me> wrote: Hi, > The suniv SoC has a USB OTG controller and a USB PHY like other > Allwinner SoCs. > > Add their device tree node. Looks alright to me, checked against the manual, also compared against some other Allwinner USB DT nodes. Also passes the binding and DTB checks. Just one small question below, but nevertheless: Reviewed-by: Andre Przywara <andre.przywara@arm.com> > Signed-off-by: Icenowy Zheng <uwu@icenowy.me> > --- > No changes since v1. > > arch/arm/boot/dts/suniv-f1c100s.dtsi | 26 ++++++++++++++++++++++++++ > 1 file changed, 26 insertions(+) > > diff --git a/arch/arm/boot/dts/suniv-f1c100s.dtsi b/arch/arm/boot/dts/suniv-f1c100s.dtsi > index 0edc1724407b..a01541ba42c5 100644 > --- a/arch/arm/boot/dts/suniv-f1c100s.dtsi > +++ b/arch/arm/boot/dts/suniv-f1c100s.dtsi > @@ -133,6 +133,32 @@ mmc1: mmc@1c10000 { > #size-cells = <0>; > }; > > + usb_otg: usb@1c13000 { > + compatible = "allwinner,suniv-f1c100s-musb"; > + reg = <0x01c13000 0x0400>; > + clocks = <&ccu CLK_BUS_OTG>; > + resets = <&ccu RST_BUS_OTG>; > + interrupts = <26>; > + interrupt-names = "mc"; > + phys = <&usbphy 0>; > + phy-names = "usb"; > + extcon = <&usbphy 0>; > + allwinner,sram = <&otg_sram 1>; What is this "1" for? I see it all over the other Allwinner SRAM properties, but can't find any documentation about that number, nor can I see that it would be used in the code. Does anyone know? Cheers, Andre > + status = "disabled"; > + }; > + > + usbphy: phy@1c13400 { > + compatible = "allwinner,suniv-f1c100s-usb-phy"; > + reg = <0x01c13400 0x10>; > + reg-names = "phy_ctrl"; > + clocks = <&ccu CLK_USB_PHY0>; > + clock-names = "usb0_phy"; > + resets = <&ccu RST_USB_PHY0>; > + reset-names = "usb0_reset"; > + #phy-cells = <1>; > + status = "disabled"; > + }; > + > ccu: clock@1c20000 { > compatible = "allwinner,suniv-f1c100s-ccu"; > reg = <0x01c20000 0x400>;
在 2022-10-24星期一的 15:16 +0100，Andre Przywara写道： > On Wed, 12 Oct 2022 13:55:58 +0800 > Icenowy Zheng <uwu@icenowy.me> wrote: > > Hi, > > > The suniv SoC has a USB OTG controller and a USB PHY like other > > Allwinner SoCs. > > > > Add their device tree node. > > Looks alright to me, checked against the manual, also compared > against > some other Allwinner USB DT nodes. Also passes the binding and DTB > checks. > > Just one small question below, but nevertheless: > > Reviewed-by: Andre Przywara <andre.przywara@arm.com> > > > Signed-off-by: Icenowy Zheng <uwu@icenowy.me> > > --- > > No changes since v1. > > > > arch/arm/boot/dts/suniv-f1c100s.dtsi | 26 > > ++++++++++++++++++++++++++ > > 1 file changed, 26 insertions(+) > > > > diff --git a/arch/arm/boot/dts/suniv-f1c100s.dtsi > > b/arch/arm/boot/dts/suniv-f1c100s.dtsi > > index 0edc1724407b..a01541ba42c5 100644 > > --- a/arch/arm/boot/dts/suniv-f1c100s.dtsi > > +++ b/arch/arm/boot/dts/suniv-f1c100s.dtsi > > @@ -133,6 +133,32 @@ mmc1: mmc@1c10000 { > > #size-cells = <0>; > > }; > > > > + usb_otg: usb@1c13000 { > > + compatible = "allwinner,suniv-f1c100s- > > musb"; > > + reg = <0x01c13000 0x0400>; > > + clocks = <&ccu CLK_BUS_OTG>; > > + resets = <&ccu RST_BUS_OTG>; > > + interrupts = <26>; > > + interrupt-names = "mc"; > > + phys = <&usbphy 0>; > > + phy-names = "usb"; > > + extcon = <&usbphy 0>; > > + allwinner,sram = <&otg_sram 1>; > > What is this "1" for? I see it all over the other Allwinner SRAM > properties, but can't find any documentation about that number, nor > can I > see that it would be used in the code. It means mapping the SRAM to dedicated device instead of CPU. This information is available in previous sunxi-sram.txt binding, but lost when converting to json schema, maybe because it does not fit well in json schema. > > Does anyone know? > > Cheers, > Andre > > > + status = "disabled"; > > + }; > > + > > + usbphy: phy@1c13400 { > > + compatible = "allwinner,suniv-f1c100s-usb- > > phy"; > > + reg = <0x01c13400 0x10>; > > + reg-names = "phy_ctrl"; > > + clocks = <&ccu CLK_USB_PHY0>; > > + clock-names = "usb0_phy"; > > + resets = <&ccu RST_USB_PHY0>; > > + reset-names = "usb0_reset"; > > + #phy-cells = <1>; > > + status = "disabled"; > > + }; > > + > > ccu: clock@1c20000 { > > compatible = "allwinner,suniv-f1c100s-ccu"; > > reg = <0x01c20000 0x400>; >
diff --git a/arch/arm/boot/dts/suniv-f1c100s.dtsi b/arch/arm/boot/dts/suniv-f1c100s.dtsi index 0edc1724407b..a01541ba42c5 100644 --- a/arch/arm/boot/dts/suniv-f1c100s.dtsi +++ b/arch/arm/boot/dts/suniv-f1c100s.dtsi @@ -133,6 +133,32 @@ mmc1: mmc@1c10000 { #size-cells = <0>; }; + usb_otg: usb@1c13000 { + compatible = "allwinner,suniv-f1c100s-musb"; + reg = <0x01c13000 0x0400>; + clocks = <&ccu CLK_BUS_OTG>; + resets = <&ccu RST_BUS_OTG>; + interrupts = <26>; + interrupt-names = "mc"; + phys = <&usbphy 0>; + phy-names = "usb"; + extcon = <&usbphy 0>; + allwinner,sram = <&otg_sram 1>; + status = "disabled"; + }; + + usbphy: phy@1c13400 { + compatible = "allwinner,suniv-f1c100s-usb-phy"; + reg = <0x01c13400 0x10>; + reg-names = "phy_ctrl"; + clocks = <&ccu CLK_USB_PHY0>; + clock-names = "usb0_phy"; + resets = <&ccu RST_USB_PHY0>; + reset-names = "usb0_reset"; + #phy-cells = <1>; + status = "disabled"; + }; + ccu: clock@1c20000 { compatible = "allwinner,suniv-f1c100s-ccu"; reg = <0x01c20000 0x400>;
The suniv SoC has a USB OTG controller and a USB PHY like other Allwinner SoCs. Add their device tree node. Signed-off-by: Icenowy Zheng <uwu@icenowy.me> --- No changes since v1. arch/arm/boot/dts/suniv-f1c100s.dtsi | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)