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0993-arm64-dts-mediatek-Split-PCIe-node-for-MT2712-MT7622.patch
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0993-arm64-dts-mediatek-Split-PCIe-node-for-MT2712-MT7622.patch
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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 3/4] arm64: dts: mediatek: Split PCIe node for
MT2712/MT7622
Date: Thu, 28 May 2020 14:16:47 +0800
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Cc: devicetree@vger.kernel.org, lorenzo.pieralisi@arm.com,
srv_heupstream@mediatek.com, "chuanjia.liu" <Chuanjia.Liu@mediatek.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
jianjun.wang@mediatek.com, linux-mediatek@lists.infradead.org,
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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>
---
arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 75 +++++++++++--------
.../dts/mediatek/mt7622-bananapi-bpi-r64.dts | 16 ++--
arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts | 6 +-
arch/arm64/boot/dts/mediatek/mt7622.dtsi | 68 +++++++++++------
4 files changed, 96 insertions(+), 69 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
index 2cd8b33886e5..ab27ff4a869e 100644
--- a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
@@ -797,60 +797,73 @@
};
};
- 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 = <&u3port0 PHY_TYPE_PCIE>, <&u3port1 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 {
- device_type = "pci";
- status = "disabled";
- 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 {
- device_type = "pci";
- status = "disabled";
- 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>;
diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
index 83e10591e0e5..7574d88cc46a 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
@@ -207,18 +207,16 @@
};
};
-&pcie {
+&pcie0 {
pinctrl-names = "default";
- pinctrl-0 = <&pcie0_pins>, <&pcie1_pins>;
+ pinctrl-0 = <&pcie0_pins>;
status = "okay";
+};
- pcie@0,0 {
- status = "okay";
- };
-
- pcie@1,0 {
- status = "okay";
- };
+&pcie1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie1_pins>;
+ status = "okay";
};
&pio {
diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index 339dc9f88f43..d5131c8b6a79 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -766,45 +766,41 @@
#reset-cells = <1>;
};
- pcie: pcie@1a140000 {
+ pciecfg: pciecfg@1a140000 {
+ compatible = "mediatek,mt7622-pciecfg", "syscon";
+ reg = <0 0x1a140000 0 0x1000>;
+ };
+
+ 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_P0_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";
+ <&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 0x0 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>;
#interrupt-cells = <1>;
ranges;
- status = "disabled";
-
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0 0 0 1 &pcie_intc0 0>,
<0 0 0 2 &pcie_intc0 1>,
@@ -816,15 +812,39 @@
#interrupt-cells = <1>;
};
};
+ };
- pcie1: pcie@1,0 {
+ 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 0x0 0x28000000 0 0x8000000>;
+ status = "disabled";
+
+ slot1: pcie@1,0 {
reg = <0x0800 0 0 0 0>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
ranges;
- status = "disabled";
-
interrupt-map-mask = <0 0 0 7>;
interrupt-map = <0 0 0 1 &pcie_intc1 0>,
<0 0 0 2 &pcie_intc1 1>,
--- a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts 2020-06-15 18:52:25.092948824 +0800
+++ b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts 2020-06-15 18:52:15.909094229 +0800
@@ -244,18 +244,16 @@
};
};
-&pcie {
+&pcie0 {
pinctrl-names = "default";
- pinctrl-0 = <&pcie0_pins>, <&pcie1_pins>;
+ pinctrl-0 = <&pcie0_pins>;
status = "okay";
+};
- pcie@0,0 {
- status = "okay";
- };
-
- pcie@1,0 {
- status = "okay";
- };
+&pcie1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie1_pins>;
+ status = "okay";
};
&pio {