mediatek: backport latest pci/e driver from upstream

Signed-off-by: John Crispin <john@phrozen.org>

1 files changed, 420 insertions, 0 deletions

diff --git a/target/linux/mediatek/patches-5.4/0991-dt-bindings-PCI-Mediatek-Update-PCIe-binding.patch b/target/linux/mediatek/patches-5.4/0991-dt-bindings-PCI-Mediatek-Update-PCIe-binding.patch
new file mode 100755
index 0000000000..2c7e311836
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/0991-dt-bindings-PCI-Mediatek-Update-PCIe-binding.patch
@@ -0,0 +1,420 @@
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+From: <chuanjia.liu@mediatek.com>
+To: <robh+dt@kernel.org>, <ryder.lee@mediatek.com>, <matthias.bgg@gmail.com>
+Subject: [PATCH v2 1/4] dt-bindings: PCI: Mediatek: Update PCIe binding
+Date: Thu, 28 May 2020 14:16:45 +0800
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+From: "chuanjia.liu" <Chuanjia.Liu@mediatek.com>
+
+There are two independent PCIe controllers in MT2712/MT7622 platform,
+and each of them should contain an independent MSI domain.
+
+In current architecture, MSI domain will be inherited from the root
+bridge, and all of the devices will share the same MSI domain.
+Hence that, the PCIe devices will not work properly if the irq number
+which required is more than 32.
+
+Split the PCIe node for MT2712/MT7622 platform to fix MSI issue and
+comply with the hardware design.
+
+Signed-off-by: chuanjia.liu <Chuanjia.Liu@mediatek.com>
+---
+ .../bindings/pci/mediatek-pcie-cfg.yaml       |  38 +++++
+ .../devicetree/bindings/pci/mediatek-pcie.txt | 144 +++++++++++-------
+ 2 files changed, 129 insertions(+), 53 deletions(-)
+ create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
+
+diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
+new file mode 100644
+index 000000000000..4d2835ab4858
+--- /dev/null
++++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
+@@ -0,0 +1,38 @@
++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/pci/mediatek-pcie-cfg.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Mediatek PCIECFG controller
++
++maintainers:
++  - Chuanjia Liu <chuanjia.liu@mediatek.com>
++  - Jianjun Wang <jianjun.wang@mediatek.com>
++
++description: |
++  The MediaTek PCIECFG controller controls some feature about
++  LTSSM, ASPM and so on.
++
++properties:
++  compatible:
++      items:
++        - enum:
++            - mediatek,mt7622-pciecfg
++            - mediatek,mt7629-pciecfg
++        - const: syscon
++
++  reg:
++    maxItems: 1
++
++required:
++  - compatible
++  - reg
++
++examples:
++  - |
++    pciecfg: pciecfg@1a140000 {
++        compatible = "mediatek,mt7622-pciecfg", "syscon";
++        reg = <0 0x1a140000 0 0x1000>;
++    };
++...
+diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
+index 7468d666763a..ddae110d4379 100644
+--- a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
++++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
+@@ -8,7 +8,7 @@ Required properties:
+ 	"mediatek,mt7623-pcie"
+ 	"mediatek,mt7629-pcie"
+ - device_type: Must be "pci"
+-- reg: Base addresses and lengths of the PCIe subsys and root ports.
++- reg: Base addresses and lengths of the root ports.
+ - reg-names: Names of the above areas to use during resource lookup.
+ - #address-cells: Address representation for root ports (must be 3)
+ - #size-cells: Size representation for root ports (must be 2)
+@@ -19,10 +19,10 @@ Required properties:
+    - 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:
++  Required entries for MT2712/MT7622/MT7629:
+    - ahb_ckN :AHB slave interface operating clock for CSR access and RC
+ 	      initiated MMIO access
+-  Required entries for MT7622:
++  Required entries for MT7622/MT7629:
+    - 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
+@@ -47,10 +47,13 @@ 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:
++Required properties for MT2712/MT7622/MT7629:
+ -interrupts: A list of interrupt outputs of the controller, must have one
+ 	     entry for each PCIe port
+ 
++Required properties for MT7622/MT7629:
++- mediatek,pcie-subsys: Should be a phandle of the pciecfg node.
++
+ In addition, the device tree node must have sub-nodes describing each
+ PCIe port interface, having the following mandatory properties:
+ 
+@@ -143,56 +146,73 @@ Examples for MT7623:
+ 
+ Examples for MT2712:
+ 
+-	pcie: pcie@11700000 {
++	pcie1: pcie@112ff000 {
+ 		compatible = "mediatek,mt2712-pcie";
+ 		device_type = "pci";
+-		reg = <0 0x11700000 0 0x1000>,
+-		      <0 0x112ff000 0 0x1000>;
+-		reg-names = "port0", "port1";
++		reg = <0 0x112ff000 0 0x1000>;
++		reg-names = "port1";
+ 		#address-cells = <3>;
+ 		#size-cells = <2>;
+-		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
+-			     <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+-		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
+-			 <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
+-			 <&pericfg CLK_PERI_PCIE0>,
++		interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
++		interrupt-names = "pcie_irq";
++		clocks = <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
+ 			 <&pericfg CLK_PERI_PCIE1>;
+-		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";
++		clock-names = "sys_ck1", "ahb_ck1";
++		phys = <&u3port1 PHY_TYPE_PCIE>;
++		phy-names = "pcie-phy1";
+ 		bus-range = <0x00 0xff>;
+-		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
++		ranges = <0x82000000 0 0x11400000  0x0 0x11400000  0 0x300000>;
++		status = "disabled";
+ 
+-		pcie0: pcie@0,0 {
+-			reg = <0x0000 0 0 0 0>;
++		slot1: pcie@1,0 {
++			reg = <0x0800 0 0 0 0>;
+ 			#address-cells = <3>;
+ 			#size-cells = <2>;
+ 			#interrupt-cells = <1>;
+ 			ranges;
+ 			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-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>;
+ 			};
+ 		};
++	};
+ 
+-		pcie1: pcie@1,0 {
+-			reg = <0x0800 0 0 0 0>;
++	pcie0: pcie@11700000 {
++		compatible = "mediatek,mt2712-pcie";
++		device_type = "pci";
++		reg = <0 0x11700000 0 0x1000>;
++		reg-names = "port0";
++		#address-cells = <3>;
++		#size-cells = <2>;
++		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
++		interrupt-names = "pcie_irq";
++		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
++			 <&pericfg CLK_PERI_PCIE0>;
++		clock-names = "sys_ck0", "ahb_ck0";
++		phys = <&u3port0 PHY_TYPE_PCIE>;
++		phy-names = "pcie-phy0";
++		bus-range = <0x00 0xff>;
++		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
++		status = "disabled";
++
++		slot0: pcie@0,0 {
++			reg = <0x0000 0 0 0 0>;
+ 			#address-cells = <3>;
+ 			#size-cells = <2>;
+ 			#interrupt-cells = <1>;
+ 			ranges;
+ 			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-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>;
+@@ -202,39 +222,31 @@ Examples for MT2712:
+ 
+ Examples for MT7622:
+ 
+-	pcie: pcie@1a140000 {
++	pcie0: pcie@1a143000 {
+ 		compatible = "mediatek,mt7622-pcie";
+ 		device_type = "pci";
+-		reg = <0 0x1a140000 0 0x1000>,
+-		      <0 0x1a143000 0 0x1000>,
+-		      <0 0x1a145000 0 0x1000>;
+-		reg-names = "subsys", "port0", "port1";
++		reg = <0 0x1a143000 0 0x1000>;
++		reg-names = "port0";
++		mediatek,pcie-cfg = <&pciecfg>;
+ 		#address-cells = <3>;
+ 		#size-cells = <2>;
+-		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>,
+-			     <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
++		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>;
++		interrupt-names = "pcie_irq";
+ 		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";
++			 <&pciesys CLK_PCIE_P0_PIPE_EN>;
++		clock-names = "sys_ck0", "ahb_ck0", "aux_ck0",
++			      "axi_ck0", "obff_ck0", "pipe_ck0";
++
+ 		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+ 		bus-range = <0x00 0xff>;
+-		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
++		ranges = <0x82000000 0 0x20000000  0 0x20000000  0 0x8000000>;
++		status = "disabled";
+ 
+-		pcie0: pcie@0,0 {
++		slot0: pcie@0,0 {
+ 			reg = <0x0000 0 0 0 0>;
+ 			#address-cells = <3>;
+ 			#size-cells = <2>;
+@@ -251,8 +263,34 @@ Examples for MT7622:
+ 				#interrupt-cells = <1>;
+ 			};
+ 		};
++	};
++
++	pcie1: pcie@1a145000 {
++		compatible = "mediatek,mt7622-pcie";
++		device_type = "pci";
++		reg = <0 0x1a145000 0 0x1000>;
++		reg-names = "port1";
++		mediatek,pcie-cfg = <&pciecfg>;
++		#address-cells = <3>;
++		#size-cells = <2>;
++		interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
++		interrupt-names = "pcie_irq";
++		clocks = <&pciesys CLK_PCIE_P1_MAC_EN>,
++			 /* designer has connect RC1 with p0_ahb clock */
++			 <&pciesys CLK_PCIE_P0_AHB_EN>,
++			 <&pciesys CLK_PCIE_P1_AUX_EN>,
++			 <&pciesys CLK_PCIE_P1_AXI_EN>,
++			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
++			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
++		clock-names = "sys_ck1", "ahb_ck1", "aux_ck1",
++			      "axi_ck1", "obff_ck1", "pipe_ck1";
++
++		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
++		bus-range = <0x00 0xff>;
++		ranges = <0x82000000 0 0x28000000  0 0x28000000  0 0x8000000>;
++		status = "disabled";
+ 
+-		pcie1: pcie@1,0 {
++		slot1: pcie@1,0 {
+ 			reg = <0x0800 0 0 0 0>;
+ 			#address-cells = <3>;
+ 			#size-cells = <2>;