From 0a8282b831196b777bbad5f007d66f698421f71e Mon Sep 17 00:00:00 2001 From: Mark Kettenis Date: Mon, 25 Oct 2021 22:10:14 +0100 Subject: arm64: apple: Add pinctrl nodes Add pinctrl nodes corresponding to the gpio,t8101 nodes in the Apple device tree for the Mac mini (M1, 2020). Clock references are left out at the moment and will be added once the appropriate bindings have been settled upon. Signed-off-by: Mark Kettenis Reviewed-by: Linus Walleij Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210520171310.772-3-mark.kettenis@xs4all.nl Signed-off-by: Hector Martin --- arch/arm64/boot/dts/apple/t8103.dtsi | 87 ++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) (limited to 'arch/arm64/boot') diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index a1e22a2ea2e5..7af1ffbc970d 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -9,6 +9,7 @@ #include #include +#include / { compatible = "apple,t8103", "apple,arm-platform"; @@ -131,5 +132,91 @@ interrupt-controller; reg = <0x2 0x3b100000 0x0 0x8000>; }; + + pinctrl_ap: pinctrl@23c100000 { + compatible = "apple,t8103-pinctrl", "apple,pinctrl"; + reg = <0x2 0x3c100000 0x0 0x100000>; + + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl_ap 0 0 212>; + apple,npins = <212>; + + interrupt-controller; + interrupt-parent = <&aic>; + interrupts = , + , + , + , + , + , + ; + + pcie_pins: pcie-pins { + pinmux = , + , + ; + }; + }; + + pinctrl_aop: pinctrl@24a820000 { + compatible = "apple,t8103-pinctrl", "apple,pinctrl"; + reg = <0x2 0x4a820000 0x0 0x4000>; + + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl_aop 0 0 42>; + apple,npins = <42>; + + interrupt-controller; + interrupt-parent = <&aic>; + interrupts = , + , + , + , + , + , + ; + }; + + pinctrl_nub: pinctrl@23d1f0000 { + compatible = "apple,t8103-pinctrl", "apple,pinctrl"; + reg = <0x2 0x3d1f0000 0x0 0x4000>; + + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl_nub 0 0 23>; + apple,npins = <23>; + + interrupt-controller; + interrupt-parent = <&aic>; + interrupts = , + , + , + , + , + , + ; + }; + + pinctrl_smc: pinctrl@23e820000 { + compatible = "apple,t8103-pinctrl", "apple,pinctrl"; + reg = <0x2 0x3e820000 0x0 0x4000>; + + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl_smc 0 0 16>; + apple,npins = <16>; + + interrupt-controller; + interrupt-parent = <&aic>; + interrupts = , + , + , + , + , + , + ; + }; }; }; -- cgit From ff2a8d91d80c548bfec1b0e998ae9b1fdc994119 Mon Sep 17 00:00:00 2001 From: Mark Kettenis Date: Mon, 25 Oct 2021 22:10:15 +0100 Subject: arm64: apple: Add PCIe node Add node corresponding to the apcie,t8103 node in the Apple device tree for the Mac mini (M1, 2020). Power domain references and DART (IOMMU) references are left out at the moment and will be added once the appropriate bindings have been settled upon. Acked-by: Marc Zyngier Signed-off-by: Mark Kettenis Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/20210921183420.436-5-kettenis@openbsd.org Signed-off-by: Hector Martin --- arch/arm64/boot/dts/apple/t8103.dtsi | 63 ++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) (limited to 'arch/arm64/boot') diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index 7af1ffbc970d..ed562e1103a9 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -218,5 +218,68 @@ , ; }; + + pcie0: pcie@690000000 { + compatible = "apple,t8103-pcie", "apple,pcie"; + device_type = "pci"; + + reg = <0x6 0x90000000 0x0 0x1000000>, + <0x6 0x80000000 0x0 0x100000>, + <0x6 0x81000000 0x0 0x4000>, + <0x6 0x82000000 0x0 0x4000>, + <0x6 0x83000000 0x0 0x4000>; + reg-names = "config", "rc", "port0", "port1", "port2"; + + interrupt-parent = <&aic>; + interrupts = , + , + ; + + msi-controller; + msi-parent = <&pcie0>; + msi-ranges = <&aic AIC_IRQ 704 IRQ_TYPE_EDGE_RISING 32>; + + bus-range = <0 3>; + #address-cells = <3>; + #size-cells = <2>; + ranges = <0x43000000 0x6 0xa0000000 0x6 0xa0000000 0x0 0x20000000>, + <0x02000000 0x0 0xc0000000 0x6 0xc0000000 0x0 0x40000000>; + + pinctrl-0 = <&pcie_pins>; + pinctrl-names = "default"; + + pci@0,0 { + device_type = "pci"; + reg = <0x0 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 152 0>; + max-link-speed = <2>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + + pci@1,0 { + device_type = "pci"; + reg = <0x800 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 153 0>; + max-link-speed = <2>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + + pci@2,0 { + device_type = "pci"; + reg = <0x1000 0x0 0x0 0x0 0x0>; + reset-gpios = <&pinctrl_ap 33 0>; + max-link-speed = <1>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; + }; }; }; -- cgit From 3c866bb79577ed26768680a18fb09903150c6a4f Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 25 Oct 2021 22:10:16 +0100 Subject: arm64: dts: apple: t8103: Add PCIe DARTs PCIe on the Apple M1 (aka t8103) requires the use of IOMMUs (aka DARTs). Add the three instances that deal with the internal PCIe ports and route each port's traffic through its DART. Signed-off-by: Marc Zyngier Signed-off-by: Hector Martin --- arch/arm64/boot/dts/apple/t8103.dtsi | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'arch/arm64/boot') diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index ed562e1103a9..ded82a734d11 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -219,6 +219,30 @@ ; }; + pcie0_dart_0: dart@681008000 { + compatible = "apple,t8103-dart"; + reg = <0x6 0x81008000 0x0 0x4000>; + #iommu-cells = <1>; + interrupt-parent = <&aic>; + interrupts = ; + }; + + pcie0_dart_1: dart@682008000 { + compatible = "apple,t8103-dart"; + reg = <0x6 0x82008000 0x0 0x4000>; + #iommu-cells = <1>; + interrupt-parent = <&aic>; + interrupts = ; + }; + + pcie0_dart_2: dart@683008000 { + compatible = "apple,t8103-dart"; + reg = <0x6 0x83008000 0x0 0x4000>; + #iommu-cells = <1>; + interrupt-parent = <&aic>; + interrupts = ; + }; + pcie0: pcie@690000000 { compatible = "apple,t8103-pcie", "apple,pcie"; device_type = "pci"; @@ -239,6 +263,12 @@ msi-parent = <&pcie0>; msi-ranges = <&aic AIC_IRQ 704 IRQ_TYPE_EDGE_RISING 32>; + + iommu-map = <0x100 &pcie0_dart_0 1 1>, + <0x200 &pcie0_dart_1 1 1>, + <0x300 &pcie0_dart_2 1 1>; + iommu-map-mask = <0xff00>; + bus-range = <0 3>; #address-cells = <3>; #size-cells = <2>; -- cgit From 128888a6fdb6959862b1871546e335b6689300da Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 25 Oct 2021 22:10:17 +0100 Subject: arm64: dts: apple: t8103: Add root port interrupt routing Add the interrupt-map properties that are required for INTx signalling. Tested-by: Alyssa Rosenzweig Signed-off-by: Marc Zyngier Signed-off-by: Hector Martin --- arch/arm64/boot/dts/apple/t8103.dtsi | 33 ++++++++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) (limited to 'arch/arm64/boot') diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index ded82a734d11..fc8b2bb06ffe 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -278,7 +278,7 @@ pinctrl-0 = <&pcie_pins>; pinctrl-names = "default"; - pci@0,0 { + port00: pci@0,0 { device_type = "pci"; reg = <0x0 0x0 0x0 0x0 0x0>; reset-gpios = <&pinctrl_ap 152 0>; @@ -287,9 +287,18 @@ #address-cells = <3>; #size-cells = <2>; ranges; + + interrupt-controller; + #interrupt-cells = <1>; + + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &port00 0 0 0 0>, + <0 0 0 2 &port00 0 0 0 1>, + <0 0 0 3 &port00 0 0 0 2>, + <0 0 0 4 &port00 0 0 0 3>; }; - pci@1,0 { + port01: pci@1,0 { device_type = "pci"; reg = <0x800 0x0 0x0 0x0 0x0>; reset-gpios = <&pinctrl_ap 153 0>; @@ -298,9 +307,18 @@ #address-cells = <3>; #size-cells = <2>; ranges; + + interrupt-controller; + #interrupt-cells = <1>; + + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &port01 0 0 0 0>, + <0 0 0 2 &port01 0 0 0 1>, + <0 0 0 3 &port01 0 0 0 2>, + <0 0 0 4 &port01 0 0 0 3>; }; - pci@2,0 { + port02: pci@2,0 { device_type = "pci"; reg = <0x1000 0x0 0x0 0x0 0x0>; reset-gpios = <&pinctrl_ap 33 0>; @@ -309,6 +327,15 @@ #address-cells = <3>; #size-cells = <2>; ranges; + + interrupt-controller; + #interrupt-cells = <1>; + + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &port02 0 0 0 0>, + <0 0 0 2 &port02 0 0 0 1>, + <0 0 0 3 &port02 0 0 0 2>, + <0 0 0 4 &port02 0 0 0 3>; }; }; }; -- cgit From e1bebf97815158f16da96f69e9d9bb891a4c69eb Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 25 Oct 2021 22:10:18 +0100 Subject: arm64: dts: apple: j274: Expose PCI node for the Ethernet MAC address At the moment, all the Minis running Linux have the same MAC address (00:10:18:00:00:00), which is a bit annoying. Expose the PCI node corresponding to the Ethernet device, and declare a 'local-mac-address' property. The bootloader will update it (m1n1 already has the required feature). And if it doesn't, then the default value is already present in the DT. This relies on forcing the bus number for each port so that the endpoints connected to them are correctly numbered (and keeps dtc quiet). Signed-off-by: Marc Zyngier Signed-off-by: Hector Martin --- arch/arm64/boot/dts/apple/t8103-j274.dts | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'arch/arm64/boot') diff --git a/arch/arm64/boot/dts/apple/t8103-j274.dts b/arch/arm64/boot/dts/apple/t8103-j274.dts index e0f6775b9878..33a80f9501dc 100644 --- a/arch/arm64/boot/dts/apple/t8103-j274.dts +++ b/arch/arm64/boot/dts/apple/t8103-j274.dts @@ -17,6 +17,7 @@ aliases { serial0 = &serial0; + ethernet0 = ðernet0; }; chosen { @@ -43,3 +44,25 @@ &serial0 { status = "okay"; }; + +/* + * Force the bus number assignments so that we can declare some of the + * on-board devices and properties that are populated by the bootloader + * (such as MAC addresses). + */ +&port00 { + bus-range = <1 1>; +}; + +&port01 { + bus-range = <2 2>; +}; + +&port02 { + bus-range = <3 3>; + ethernet0: pci@0,0 { + reg = <0x30000 0x0 0x0 0x0 0x0>; + /* To be filled by the loader */ + local-mac-address = [00 10 18 00 00 00]; + }; +}; -- cgit