On Fri, Jan 20, 2017 at 04:18:41PM +0800, Chunfeng Yun wrote: > add a new compatible string for "mt2712", and move reference clock > into each port node; > > Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> > --- > .../devicetree/bindings/phy/phy-mt65xx-usb.txt | 91 +++++++++++++++++--- > 1 file changed, 77 insertions(+), 14 deletions(-) > > diff --git a/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt b/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt > index 33a2b1e..1d06604 100644 > --- a/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt > +++ b/Documentation/devicetree/bindings/phy/phy-mt65xx-usb.txt > @@ -6,21 +6,27 @@ This binding describes a usb3.0 phy for mt65xx platforms of Medaitek SoC. > Required properties (controller (parent) node): > - compatible : should be one of > "mediatek,mt2701-u3phy" > + "mediatek,mt2712-u3phy" > "mediatek,mt8173-u3phy" > - - reg : offset and length of register for phy, exclude port's > - register. > - - clocks : a list of phandle + clock-specifier pairs, one for each > - entry in clock-names > - - clock-names : must contain > - "u3phya_ref": for reference clock of usb3.0 analog phy. > > Required nodes : a sub-node is required for each port the controller > provides. Address range information including the usual > 'reg' property is used inside these nodes to describe > the controller's topology. > > +Optional properties (controller (parent) node): > + - reg : offset and length of register shared by multiple ports, How is this optional? > + exclude port's private register. It is needed on mt2701 > + and mt8173, but not on mt2712. > + > Required properties (port (child) node): > - reg : address and length of the register set for the port. > +- clocks : a list of phandle + clock-specifier pairs, one for each > + entry in clock-names > +- clock-names : must contain > + "ref_clk": 48M reference clock for HighSpeed analog phy; and _clk is redundant. Just "ref" > + 26M reference clock for SuperSpeed analog phy, sometimes is > + 24M, 25M or 27M, depended on platform. > - #phy-cells : should be 1 (See second example) > cell after port phandle is phy type from: > - PHY_TYPE_USB2 > @@ -31,21 +37,31 @@ Example: > u3phy: usb-phy@11290000 { > compatible = "mediatek,mt8173-u3phy"; > reg = <0 0x11290000 0 0x800>; > - clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>; > - clock-names = "u3phya_ref"; > #address-cells = <2>; > #size-cells = <2>; > ranges; > status = "okay"; > > - phy_port0: port@11290800 { > - reg = <0 0x11290800 0 0x800>; > + u2port0: port@11290800 { > + reg = <0 0x11290800 0 0x100>; > + clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>; > + clock-names = "ref_clk"; > #phy-cells = <1>; > status = "okay"; > }; > > - phy_port1: port@11291000 { > - reg = <0 0x11291000 0 0x800>; > + u3port0: port@11290900 { > + reg = <0 0x11290800 0 0x700>; > + clocks = <&clk26m>; > + clock-names = "ref_clk"; > + #phy-cells = <1>; > + status = "okay"; > + }; > + > + u2port1: port@11291000 { > + reg = <0 0x11291000 0 0x100>; > + clocks = <&apmixedsys CLK_APMIXED_REF2USB_TX>; > + clock-names = "ref_clk"; > #phy-cells = <1>; > status = "okay"; > }; > @@ -64,7 +80,54 @@ Example: > > usb30: usb@11270000 { > ... > - phys = <&phy_port0 PHY_TYPE_USB3>; > - phy-names = "usb3-0"; > + phys = <&u2port0 PHY_TYPE_USB2>, <&u3port0 PHY_TYPE_USB3>; > + phy-names = "usb2-0", "usb3-0"; > ... > }; > + > + > +Layout differences of banks between mt8173/mt2701 and mt2712 > +------------------------------------------------------------- > +mt8173 and mt2701: > +port offset bank > +shared 0x0000 SPLLC > + 0x0100 FMREG > +u2 port0 0x0800 U2PHY_COM > +u3 port0 0x0900 U3PHYD > + 0x0a00 U3PHYD_BANK2 > + 0x0b00 U3PHYA > + 0x0c00 U3PHYA_DA > +u2 port1 0x1000 U2PHY_COM > +u3 port1 0x1100 U3PHYD > + 0x1200 U3PHYD_BANK2 > + 0x1300 U3PHYA > + 0x1400 U3PHYA_DA > +u2 port2 0x1800 U2PHY_COM > + ... > + > +mt2712: > +port offset bank > +u2 port0 0x0000 MISC > + 0x0100 FMREG > + 0x0300 U2PHY_COM > +u3 port0 0x0700 SPLLC > + 0x0800 CHIP > + 0x0900 U3PHYD > + 0x0a00 U3PHYD_BANK2 > + 0x0b00 U3PHYA > + 0x0c00 U3PHYA_DA > +u2 port1 0x1000 MISC > + 0x1100 FMREG > + 0x1300 U2PHY_COM > +u3 port1 0x1700 SPLLC > + 0x1800 CHIP > + 0x1900 U3PHYD > + 0x1a00 U3PHYD_BANK2 > + 0x1b00 U3PHYA > + 0x1c00 U3PHYA_DA > +u2 port2 0x2000 MISC > + ... > + > + SPLLC shared by u3 ports and FMREG shared by u2 ports on > +mt8173/mt2701 are put back into each port; a new bank MISC for > +u2 ports and CHIP for u3 ports are added on mt2712. > -- > 1.7.9.5 > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html