From 2f8913a7b17efd3a116825160a2d3a6610444587 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 12 Nov 2020 16:08:31 +0100 Subject: [PATCH 1/3] dt-bindings: arm: bcm: document BCM4908 bindings MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit BCM4908 is a new family that includes BCM4906, BCM4908 and BCM49408. It's mostly used in home routers and often replaces Northstar in vendors portfolio. Signed-off-by: Rafał Miłecki Signed-off-by: Florian Fainelli --- .../bindings/arm/bcm/brcm,bcm4908.yaml | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml new file mode 100644 index 000000000000..5fec063d9a13 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/bcm/brcm,bcm4908.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom BCM4908 device tree bindings + +description: + Broadcom BCM4906 / BCM4908 / BCM49408 Wi-Fi/network SoCs with Brahma CPUs. + +maintainers: + - Rafał Miłecki + +properties: + $nodename: + const: '/' + compatible: + oneOf: + - description: BCM4906 based boards + items: + - const: brcm,bcm4906 + - const: brcm,bcm4908 + + - description: BCM4908 based boards + items: + - enum: + - asus,gt-ac5300 + - const: brcm,bcm4908 + + - description: BCM49408 based boards + items: + - const: brcm,bcm49408 + - const: brcm,bcm4908 + +additionalProperties: true + +... From 2961f69f151c0a6771f55cef46398fe49ca20902 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 12 Nov 2020 16:08:32 +0100 Subject: [PATCH 2/3] arm64: dts: broadcom: add BCM4908 and Asus GT-AC5300 early DTS files MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit They don't descibe hardware fully yet but it's enough to boot a system. Some missing blocks: 1. PMC (Power Management Controller?) 2. Ethernet 3. Crypto 4. Thermal Asus DTS is missing defining full NAND partitions layout and buttons. Further changes will fill those gaps as soon as required bindings will be found / tested / added. Signed-off-by: Rafał Miłecki Signed-off-by: Florian Fainelli --- arch/arm64/boot/dts/broadcom/Makefile | 1 + arch/arm64/boot/dts/broadcom/bcm4908/Makefile | 2 + .../bcm4908/bcm4908-asus-gt-ac5300.dts | 66 +++++++ .../boot/dts/broadcom/bcm4908/bcm4908.dtsi | 187 ++++++++++++++++++ 4 files changed, 256 insertions(+) create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/Makefile create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts create mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile index cb7de8d99223..998e240aa698 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -5,5 +5,6 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b.dtb \ bcm2837-rpi-3-b-plus.dtb \ bcm2837-rpi-cm3-io3.dtb +subdir-y += bcm4908 subdir-y += northstar2 subdir-y += stingray diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/Makefile b/arch/arm64/boot/dts/broadcom/bcm4908/Makefile new file mode 100644 index 000000000000..ef26c23603ce --- /dev/null +++ b/arch/arm64/boot/dts/broadcom/bcm4908/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +dtb-$(CONFIG_ARCH_BCM4908) += bcm4908-asus-gt-ac5300.dtb diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts new file mode 100644 index 000000000000..13c6b86eef21 --- /dev/null +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT + +#include +#include + +#include "bcm4908.dtsi" + +/ { + compatible = "asus,gt-ac5300", "brcm,bcm4908"; + model = "Asus GT-AC5300"; + + memory@0 { + device_type = "memory"; + reg = <0x00 0x00 0x00 0x40000000>; + }; + + gpio-keys-polled { + compatible = "gpio-keys-polled"; + poll-interval = <100>; + + wifi { + label = "WiFi"; + linux,code = ; + gpios = <&gpio0 28 GPIO_ACTIVE_LOW>; + }; + + wps { + label = "WPS"; + linux,code = ; + gpios = <&gpio0 29 GPIO_ACTIVE_LOW>; + }; + + restart { + label = "Reset"; + linux,code = ; + gpios = <&gpio0 30 GPIO_ACTIVE_LOW>; + }; + + brightness { + label = "LEDs"; + linux,code = ; + gpios = <&gpio0 31 GPIO_ACTIVE_LOW>; + }; + }; +}; + +&nandcs { + nand-ecc-strength = <4>; + nand-ecc-step-size = <512>; + nand-on-flash-bbt; + brcm,nand-has-wp; + + #address-cells = <1>; + #size-cells = <0>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "cferom"; + reg = <0x0 0x100000>; + }; + }; +}; diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi new file mode 100644 index 000000000000..f873dc44ce9c --- /dev/null +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi @@ -0,0 +1,187 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT + +#include +#include + +/dts-v1/; + +/ { + interrupt-parent = <&gic>; + + #address-cells = <2>; + #size-cells = <2>; + + aliases { + serial0 = &uart0; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "brcm,brahma-b53"; + reg = <0x0>; + next-level-cache = <&l2>; + }; + + cpu1: cpu@1 { + device_type = "cpu"; + compatible = "brcm,brahma-b53"; + reg = <0x1>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0xfff8>; + next-level-cache = <&l2>; + }; + + cpu2: cpu@2 { + device_type = "cpu"; + compatible = "brcm,brahma-b53"; + reg = <0x2>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0xfff8>; + next-level-cache = <&l2>; + }; + + cpu3: cpu@3 { + device_type = "cpu"; + compatible = "brcm,brahma-b53"; + reg = <0x3>; + enable-method = "spin-table"; + cpu-release-addr = <0x0 0xfff8>; + next-level-cache = <&l2>; + }; + + l2: l2-cache0 { + compatible = "cache"; + }; + }; + + axi@81000000 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x00 0x00 0x81000000 0x4000>; + + gic: interrupt-controller@1000 { + compatible = "arm,gic-400"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0x1000 0x1000>, + <0x2000 0x2000>; + }; + }; + + timer { + compatible = "arm,armv8-timer"; + interrupts = , + , + , + ; + }; + + pmu { + compatible = "arm,cortex-a53-pmu"; + interrupts = , + , + , + ; + interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>; + }; + + clocks { + periph_clk: periph_clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <50000000>; + clock-output-names = "periph"; + }; + }; + + soc { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x00 0x00 0x80000000 0x10000>; + + usb@c300 { + compatible = "generic-ehci"; + reg = <0xc300 0x100>; + interrupts = ; + status = "disabled"; + }; + + usb@c400 { + compatible = "generic-ohci"; + reg = <0xc400 0x100>; + interrupts = ; + status = "disabled"; + }; + + usb@d000 { + compatible = "generic-xhci"; + reg = <0xd000 0x8c8>; + interrupts = ; + status = "disabled"; + }; + }; + + bus@ff800000 { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x00 0x00 0xff800000 0x3000>; + + timer: timer@400 { + compatible = "brcm,bcm6328-timer", "syscon"; + reg = <0x400 0x3c>; + }; + + gpio0: gpio-controller@500 { + compatible = "brcm,bcm6345-gpio"; + reg-names = "dirout", "dat"; + reg = <0x500 0x28>, <0x528 0x28>; + + #gpio-cells = <2>; + gpio-controller; + }; + + uart0: serial@640 { + compatible = "brcm,bcm6345-uart"; + reg = <0x640 0x18>; + interrupts = ; + clocks = <&periph_clk>; + clock-names = "periph"; + status = "okay"; + }; + + nand@1800 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "brcm,brcmnand-v7.1", "brcm,brcmnand"; + reg = <0x1800 0x600>, <0x2000 0x10>; + reg-names = "nand", "nand-int-base"; + interrupts = ; + interrupt-names = "nand"; + status = "okay"; + + nandcs: nandcs@0 { + compatible = "brcm,nandcs"; + reg = <0>; + }; + }; + + reboot { + compatible = "syscon-reboot"; + regmap = <&timer>; + offset = <0x34>; + mask = <1>; + }; + }; +}; From dccb22d078ebd098115e4f66bde1ee2249c8640b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 12 Nov 2020 16:08:30 +0100 Subject: [PATCH 3/3] arm64: add config for Broadcom BCM4908 SoCs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add ARCH_BCM4908 config that can be used for compiling DTS files. Signed-off-by: Rafał Miłecki Signed-off-by: Florian Fainelli --- arch/arm64/Kconfig.platforms | 8 ++++++++ arch/arm64/configs/defconfig | 1 + 2 files changed, 9 insertions(+) diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index 6f2494dd6d60..ec60d32e8d5f 100644 --- a/arch/arm64/Kconfig.platforms +++ b/arch/arm64/Kconfig.platforms @@ -43,6 +43,14 @@ config ARCH_BCM2835 This enables support for the Broadcom BCM2837 and BCM2711 SoC. These SoCs are used in the Raspberry Pi 3 and 4 devices. +config ARCH_BCM4908 + bool "Broadcom BCM4908 family" + select GPIOLIB + help + This enables support for the Broadcom BCM4906, BCM4908 and + BCM49408 SoCs. These SoCs use Brahma-B53 cores and can be + found in home routers. + config ARCH_BCM_IPROC bool "Broadcom iProc SoC Family" select COMMON_CLK_IPROC diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 17a2df6a263e..ead6fa942994 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -32,6 +32,7 @@ CONFIG_ARCH_AGILEX=y CONFIG_ARCH_SUNXI=y CONFIG_ARCH_ALPINE=y CONFIG_ARCH_BCM2835=y +CONFIG_ARCH_BCM4908=y CONFIG_ARCH_BCM_IPROC=y CONFIG_ARCH_BERLIN=y CONFIG_ARCH_BRCMSTB=y