diff --git a/fdts/arm_fpga.dts b/fdts/arm_fpga.dts new file mode 100644 index 0000000..6a966fd --- /dev/null +++ b/fdts/arm_fpga.dts @@ -0,0 +1,102 @@ +// SPDX-License-Identifier: (GPL-2.0 or BSD-3-Clause) +/* + * Copyright (c) 2020, Arm Limited. All rights reserved. + * + * Devicetree for the Arm Ltd. FPGA platform + * Number and kind of CPU cores differs from image to image, so the + * topology is auto-detected by BL31, and the /cpus node is created and + * populated accordingly at runtime. + */ + +#include + +/dts-v1/; + +/ { + model = "ARM FPGA"; + compatible = "arm,fpga", "arm,vexpress"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + aliases { + serial0 = &dbg_uart; + }; + + chosen { + stdout-path = "serial0:38400n8"; + bootargs = "console=ttyAMA0,38400n8 earlycon"; + /* Allow to upload a generous 100MB initrd payload. */ + linux,initrd-start = <0x0 0x84000000>; + linux,initrd-end = <0x0 0x85400000>; + }; + + /* /cpus node will be added by BL31 at runtime. */ + + psci { + compatible = "arm,psci-0.2"; + method = "smc"; + }; + + timer { + compatible = "arm,armv8-timer"; + clock-frequency = <10000000>; + interrupts = , + , + , + ; + }; + + pmu { + compatible = "arm,armv8-pmuv3"; + interrupts = ; + }; + + /* This node will be removed at runtime on cores without SPE. */ + spe-pmu { + compatible = "arm,statistical-profiling-extension-v1"; + interrupts = ; + }; + + memory@80000000 { + device_type = "memory"; + reg = <0x0 0x80000000 0x0 0x80000000>, + <0x8 0x80000000 0x1 0x80000000>; + }; + + + bus_refclk: refclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + clock-output-names = "apb_pclk"; + }; + + uartclk: baudclock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <10000000>; + clock-output-names = "uartclk"; + }; + + dbg_uart: serial@7ff80000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0 0x7ff80000 0x0 0x00001000>; + interrupts = ; + clocks = <&uartclk>, <&bus_refclk>; + clock-names = "uartclk", "apb_pclk"; + }; + + gic: interrupt-controller@30000000 { + compatible = "arm,gic-v3"; + #address-cells = <2>; + #interrupt-cells = <3>; + #size-cells = <2>; + ranges; + interrupt-controller; + reg = <0x0 0x30000000 0x0 0x00010000>, /* GICD */ + /* The GICR size will be adjusted at runtime to match the cores. */ + <0x0 0x30040000 0x0 0x00020000>; /* GICR for one core */ + interrupts = ; + }; +}; diff --git a/plat/arm/board/arm_fpga/platform.mk b/plat/arm/board/arm_fpga/platform.mk index 8904339..daf9f9f 100644 --- a/plat/arm/board/arm_fpga/platform.mk +++ b/plat/arm/board/arm_fpga/platform.mk @@ -81,6 +81,8 @@ plat/common/plat_gicv3.c \ plat/arm/board/arm_fpga/fpga_gicv3.c +FDT_SOURCES := fdts/arm_fpga.dts + PLAT_INCLUDES := -Iplat/arm/board/arm_fpga/include PLAT_BL_COMMON_SOURCES := plat/arm/board/arm_fpga/${ARCH}/fpga_helpers.S