From: Zi Shen Lim Date: Sat, 20 Feb 2016 14:19:20 +0000 (+0530) Subject: arm64: Broadcom Vulcan support X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5bfb3889878756a7f6b673df1738c473424e169f;p=linux-beck.git arm64: Broadcom Vulcan support Add a configuration option and a device tree for Broadcom's Vulcan ARM64 processor. vulcan.dtsi has the on-chip blocks like the PCIe controller, GICv3 with ITS, PMU, system timer and the pl011 UART. vulcan-eval.dts has definitions for a basic evaluation board. Vulcan's processor cores support the ARMv8.1 instruction set and will use "brcm,vulcan" as the compatible property. The firmware has PSCI 0.2 support for cpu wakeup. Signed-off-by: Zi Shen Lim [ updated and split dts - jchandra@broadcom.com ] Signed-off-by: Jayachandran C Signed-off-by: Florian Fainelli --- diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms index e20b50cbe8dc..c57b2cf516ac 100644 --- a/arch/arm64/Kconfig.platforms +++ b/arch/arm64/Kconfig.platforms @@ -134,6 +134,11 @@ config ARCH_VEXPRESS This enables support for the ARMv8 software model (Versatile Express). +config ARCH_VULCAN + bool "Broadcom Vulcan SOC Family" + help + This enables support for Broadcom Vulcan SoC Family + config ARCH_XGENE bool "AppliedMicro X-Gene SOC Family" help diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile index e21fe66f1837..bec1f8b36f60 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -1,4 +1,5 @@ dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-svk.dtb +dtb-$(CONFIG_ARCH_VULCAN) += vulcan-eval.dtb always := $(dtb-y) subdir-y := $(dts-dirs) diff --git a/arch/arm64/boot/dts/broadcom/vulcan-eval.dts b/arch/arm64/boot/dts/broadcom/vulcan-eval.dts new file mode 100644 index 000000000000..9ee8d3da0e3f --- /dev/null +++ b/arch/arm64/boot/dts/broadcom/vulcan-eval.dts @@ -0,0 +1,33 @@ +/* + * dts file for Broadcom (BRCM) Vulcan Evaluation Platform + * + * Copyright (c) 2013-2016 Broadcom + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +/dts-v1/; + +#include "vulcan.dtsi" + +/ { + model = "Broadcom Vulcan Eval Platform"; + compatible = "brcm,vulcan-eval", "brcm,vulcan-soc"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x80000000 0x0 0x80000000>, /* 2G @ 2G */ + <0x00000008 0x80000000 0x0 0x80000000>; /* 2G @ 34G */ + }; + + aliases { + serial0 = &uart0; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; +}; diff --git a/arch/arm64/boot/dts/broadcom/vulcan.dtsi b/arch/arm64/boot/dts/broadcom/vulcan.dtsi new file mode 100644 index 000000000000..c49b5a85809c --- /dev/null +++ b/arch/arm64/boot/dts/broadcom/vulcan.dtsi @@ -0,0 +1,144 @@ +/* + * dtsi file for Broadcom (BRCM) Vulcan processor + * + * Copyright (c) 2013-2016 Broadcom + * Author: Zi Shen Lim + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include + +/ { + model = "Broadcom Vulcan"; + compatible = "brcm,vulcan-soc"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + /* just 4 cpus now, 128 needed in full config */ + cpus { + #address-cells = <0x2>; + #size-cells = <0x0>; + + cpu@0 { + device_type = "cpu"; + compatible = "brcm,vulcan", "arm,armv8"; + reg = <0x0 0x0>; + enable-method = "psci"; + }; + + cpu@1 { + device_type = "cpu"; + compatible = "brcm,vulcan", "arm,armv8"; + reg = <0x0 0x1>; + enable-method = "psci"; + }; + + cpu@2 { + device_type = "cpu"; + compatible = "brcm,vulcan", "arm,armv8"; + reg = <0x0 0x2>; + enable-method = "psci"; + }; + + cpu@3 { + device_type = "cpu"; + compatible = "brcm,vulcan", "arm,armv8"; + reg = <0x0 0x3>; + enable-method = "psci"; + }; + }; + + psci { + compatible = "arm,psci-0.2"; + method = "smc"; + }; + + gic: interrupt-controller@400080000 { + compatible = "arm,gic-v3"; + #interrupt-cells = <3>; + #address-cells = <2>; + #size-cells = <2>; + ranges; + interrupt-controller; + #redistributor-regions = <1>; + reg = <0x04 0x00080000 0x0 0x20000>, /* GICD */ + <0x04 0x01000000 0x0 0x1000000>; /* GICR */ + interrupts = ; + + gicits: gic-its@40010000 { + compatible = "arm,gic-v3-its"; + msi-controller; + reg = <0x04 0x00100000 0x0 0x20000>; /* GIC ITS */ + }; + }; + + timer { + compatible = "arm,armv8-timer"; + interrupts = , + , + , + ; + }; + + pmu { + compatible = "arm,armv8-pmuv3"; + interrupts = ; /* PMU overflow */ + }; + + clk125mhz: uart_clk125mhz { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <125000000>; + clock-output-names = "clk125mhz"; + }; + + pci { + compatible = "pci-host-ecam-generic"; + device_type = "pci"; + #interrupt-cells = <1>; + #address-cells = <3>; + #size-cells = <2>; + + /* ECAM at 0x3000_0000 - 0x4000_0000 */ + reg = <0x0 0x30000000 0x0 0x10000000>; + reg-names = "PCI ECAM"; + + /* IO 0x4000_0000 - 0x4001_0000 */ + ranges = <0x01000000 0 0x40000000 0 0x40000000 0 0x00010000 + /* MEM 0x4800_0000 - 0x5000_0000 */ + 0x02000000 0 0x48000000 0 0x48000000 0 0x08000000 + /* MEM64 pref 0x6_0000_0000 - 0x7_0000_0000 */ + 0x43000000 6 0x00000000 6 0x00000000 1 0x00000000>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = + /* addr pin ic icaddr icintr */ + <0 0 0 1 &gic 0 0 GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH + 0 0 0 2 &gic 0 0 GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH + 0 0 0 3 &gic 0 0 GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH + 0 0 0 4 &gic 0 0 GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>; + msi-parent = <&gicits>; + dma-coherent; + }; + + soc { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + uart0: serial@402020000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x04 0x02020000 0x0 0x1000>; + interrupt-parent = <&gic>; + interrupts = ; + clocks = <&clk125mhz>; + clock-names = "apb_pclk"; + }; + }; + +};