[PATCH v2 5/5] dt-bindings: PCI: add support for new generation controller

[honghui.zhang@mediatek.com (Honghui Zhang)]

On Thu, 2017-07-27 at 10:58 +0800, honghui.zhang at mediatek.com wrote:
> From: Ryder Lee <ryder.lee@mediatek.com>
> 
> Add support for MediaTek new generation controller and update related
> properities.
> 
> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
> Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
> ---
>  .../devicetree/bindings/pci/mediatek-pcie.txt      | 168 ++++++++++++++++++++-
>  1 file changed, 161 insertions(+), 7 deletions(-)
> 

Sorry about the disturb, I send the wrong local version  of this patch.
[PATCH v2 5/5] dt-bindings: PCI: add support for new generation
 controller

The right version for this patch have been re-send.

thanks.

> diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
> index a968f25..179329b 100644
> --- a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
> +++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
> @@ -3,18 +3,31 @@ MediaTek Gen2 PCIe controller
>  Required properties:
>  - compatible: Should contain one of the following string:
>  	"mediatek,mt2701-pcie"
> +	"mediatek,mt2712-pcie"
> +	"mediatek,mt7622-pcie"
>  	"mediatek,mt7623-pcie"
>  - device_type: Must be "pci"
> -- reg: Base addresses and lengths of the PCIe controller.
> +- reg: Base addresses and lengths of the PICe subsys and root ports.
> +- reg-names: Names of the above areas to use during resource look-up.
>  - #address-cells: Address representation for root ports (must be 3)
>  - #size-cells: Size representation for root ports (must be 2)
>  - clocks: Must contain an entry for each entry in clock-names.
>    See ../clocks/clock-bindings.txt for details.
> -- clock-names: Must include the following entries:
> -  - free_ck :for reference clock of PCIe subsys
> -  - sys_ck0 :for clock of Port0
> -  - sys_ck1 :for clock of Port1
> -  - sys_ck2 :for clock of Port2
> +- clock-names:
> +  Mandatory entries:
> +   - sys_ckN :transaction layer and data link layer clock
> +  Required entries for MT2701/MT7623:
> +   - free_ck :for reference clock of PCIe subsys
> +  Required entries for MT2712/MT7622:
> +   - ahb_ckN :AHB slave interface operating clock for CSR access and RC
> +	      initiated MMIO access
> +  Required entries for MT7622:
> +   - axi_ckN :application layer MMIO channel operating clock
> +   - aux_ckN :pe2_mac_bridge and pe2_mac_core operating clock when
> +	      pcie_mac_ck/pcie_pipe_ck is turned off
> +   - obff_ckN :OBFF functional block operating clock
> +   - pipe_ckN :LTSSM and phy/mac layer operating clock
> +  where N starting from 0 to the maximum number of root ports.
>  - phys: List of PHY specifiers (used by generic PHY framework).
>  - phy-names : Must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the
>    number of PHYs as specified in *phys* property.
> @@ -33,6 +46,10 @@ Required properties for MT7623/MT2701:
>  - reset-names: Must be "pcie-rst0", "pcie-rst1", "pcie-rstN".. based on the
>    number of root ports.
>  
> +Required properties for MT2712/MT7622:
> +-interrupts: A list of interrupt outputs of the controller, must have one
> +	     entry for each PCIe port
> +
>  In addition, the device tree node must have sub-nodes describing each
>  PCIe port interface, having the following mandatory properties:
>  
> @@ -50,7 +67,7 @@ Required properties:
>    property is sufficient.
>  - num-lanes: Number of lanes to use for this port.
>  
> -Examples:
> +Examples for MT7623:
>  
>  	hifsys: syscon at 1a000000 {
>  		compatible = "mediatek,mt7623-hifsys",
> @@ -68,6 +85,7 @@ Examples:
>  		      <0 0x1a142000 0 0x1000>, /* Port0 registers */
>  		      <0 0x1a143000 0 0x1000>, /* Port1 registers */
>  		      <0 0x1a144000 0 0x1000>; /* Port2 registers */
> +		reg-names = "subsys", "port0", "port1", "port2";
>  		#address-cells = <3>;
>  		#size-cells = <2>;
>  		#interrupt-cells = <1>;
> @@ -127,3 +145,139 @@ Examples:
>  			num-lanes = <1>;
>  		};
>  	};
> +
> +Examples for MT2712:
> +	pcie: pcie at 11700000 {
> +		compatible = "mediatek,generic-pcie-v2";
> +		device_type = "pci";
> +		reg = <0 0x11700000 0 0x1000>,
> +		      <0 0x112ff000 0 0x1000>;
> +		reg-names = "port0", "port1";
> +		#address-cells = <3>;
> +		#size-cells = <2>;
> +		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
> +		clocks = <&pericfg CLK_PERI_PCIE0>,
> +			 <&pericfg CLK_PERI_PCIE1>,
> +			 <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
> +			 <&topckgen CLK_TOP_PE2_MAC_P1_SEL>;
> +		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1";
> +		phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
> +		phy-names = "pcie-phy0", "pcie-phy1";
> +		bus-range = <0x00 0xff>;
> +		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
> +
> +		pcie0: pcie at 0,0 {
> +			device_type = "pci";
> +			reg = <0x0000 0 0 0 0>;
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			#interrupt-cells = <1>;
> +			ranges;
> +			num-lanes = <1>;
> +			interrupt-map-mask = <0 0 0 7>;
> +			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
> +					<0 0 0 2 &pcie_intc0 1>,
> +					<0 0 0 3 &pcie_intc0 2>,
> +					<0 0 0 4 &pcie_intc0 3>;
> +			pcie_intc0: interrupt-controller {
> +				interrupt-controller;
> +				#address-cells = <0>;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +
> +		pcie1: pcie at 1,0 {
> +			device_type = "pci";
> +			reg = <0x0800 0 0 0 0>;
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			#interrupt-cells = <1>;
> +			ranges;
> +			num-lanes = <1>;
> +			interrupt-map-mask = <0 0 0 7>;
> +			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
> +					<0 0 0 2 &pcie_intc1 1>,
> +					<0 0 0 3 &pcie_intc1 2>,
> +					<0 0 0 4 &pcie_intc1 3>;
> +			pcie_intc1: interrupt-controller {
> +				interrupt-controller;
> +				#address-cells = <0>;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +	};
> +
> +Examples for MT7622:
> +	pcie: pcie at 1a140000 {
> +		compatible = "mediatek,generic-pcie-v2";
> +		device_type = "pci";
> +		reg = <0 0x1a140000 0 0x1000>,
> +		      <0 0x1a143000 0 0x1000>,
> +		      <0 0x1a145000 0 0x1000>;
> +		reg-names = "subsys", "port0", "port1";
> +		#address-cells = <3>;
> +		#size-cells = <2>;
> +		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>,
> +			     <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&pciesys CLK_PCIE_P0_MAC_EN>,
> +			 <&pciesys CLK_PCIE_P1_MAC_EN>,
> +			 <&pciesys CLK_PCIE_P0_AHB_EN>,
> +			 <&pciesys CLK_PCIE_P1_AHB_EN>,
> +			 <&pciesys CLK_PCIE_P0_AUX_EN>,
> +			 <&pciesys CLK_PCIE_P1_AUX_EN>,
> +			 <&pciesys CLK_PCIE_P0_AXI_EN>,
> +			 <&pciesys CLK_PCIE_P1_AXI_EN>,
> +			 <&pciesys CLK_PCIE_P0_OBFF_EN>,
> +			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
> +			 <&pciesys CLK_PCIE_P0_PIPE_EN>,
> +			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
> +		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1",
> +			      "aux_ck0", "aux_ck1", "axi_ck0", "axi_ck1",
> +			      "obff_ck0", "obff_ck1", "pipe_ck0", "pipe_ck1";
> +		phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
> +		phy-names = "pcie-phy0", "pcie-phy1";
> +		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
> +		bus-range = <0x00 0xff>;
> +		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
> +
> +		pcie0: pcie at 0,0 {
> +			device_type = "pci";
> +			reg = <0x0000 0 0 0 0>;
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			#interrupt-cells = <1>;
> +			ranges;
> +			num-lanes = <1>;
> +			interrupt-map-mask = <0 0 0 7>;
> +			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
> +					<0 0 0 2 &pcie_intc0 1>,
> +					<0 0 0 3 &pcie_intc0 2>,
> +					<0 0 0 4 &pcie_intc0 3>;
> +			pcie_intc0: interrupt-controller {
> +				interrupt-controller;
> +				#address-cells = <0>;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +
> +		pcie1: pcie at 1,0 {
> +			device_type = "pci";
> +			reg = <0x0800 0 0 0 0>;
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			#interrupt-cells = <1>;
> +			ranges;
> +			num-lanes = <1>;
> +			interrupt-map-mask = <0 0 0 7>;
> +			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
> +					<0 0 0 2 &pcie_intc1 1>,
> +					<0 0 0 3 &pcie_intc1 2>,
> +					<0 0 0 4 &pcie_intc1 3>;
> +			pcie_intc1: interrupt-controller {
> +				interrupt-controller;
> +				#address-cells = <0>;
> +				#interrupt-cells = <1>;
> +			};
> +		};
> +	};