From nobody Sun Feb 8 05:40:32 2026 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8FF0935BDC9 for ; Fri, 9 Jan 2026 13:44:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767966293; cv=none; b=F5i1/L+lL7Y4NsBOUgeEBPrLuxDiErASlCxN3rQrvQgwz6G8et4Ms3krjvJ7htH9iTTSDHw1+3FKc4DM46lQvGVZDMVzr5ydzT/PNUC7v76KKP9o9oyRBoVlz+r6Si9CaA0F7pRLZAQr2ahh2QdDOK4SwJOb9JD+8vmrIkutRxo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767966293; c=relaxed/simple; bh=un/mmc47M7TzaiskJcRDfyxuLNhftyXJQ1e6SZgvuK4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=u0OddQl3X77jKaUh19Tp3IlOMxGrQAKeXvaUxEwezIiqzj2kMsnntGNpIO1dfs0LGvA0iiEVIz0JxT2FYhMWbHM3Hx6PkPQ52sN5Ubj8hCc2DGGELyK9KmryWMm21bUEN96nawJuf6Qlh94t4IN2np4xl/Awj9uuqj32veDkiTE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=BNbkOVHJ; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BNbkOVHJ" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-4779adb38d3so30073145e9.2 for ; Fri, 09 Jan 2026 05:44:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1767966287; x=1768571087; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=3suL/FJnULndAdzhv6eYWlf/ToXJG1zAeBlGIDXgmts=; b=BNbkOVHJuM61hroXQEUf4tD48fdrMj44dVqg4T6q4U9EvvVQRlOkdE8wzTCpnJaNL8 Gu6npJEFb293fzL/xFAxCJ+kzX0X2TznpGaMsdZar5PN+u8/xx1fDi5xZpFbLKNli/i8 A1mb20iL/2wfKuQU+2rLEAH5R58pIrqGIyUtM8ZtNUIi7GDkTgP08XTzxU8wh0HxFgmD 0efbJUCAsnB2P+DaGvrgwfRr9DOgD4Lcgn+cKlig3+Lqtkqjfyv87dhMwirOQKBdL/vy IyKCi9oqm73Pk3onII2w7JOnKlHIeRuLpmyPq7sHtj6d3NUiz1mduzq3+XPCS4Lhwcbx EuRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767966287; x=1768571087; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=3suL/FJnULndAdzhv6eYWlf/ToXJG1zAeBlGIDXgmts=; b=BXnR1BHv9dVq7FBpkOgZrW/PnFCiWltuejSfmSsB8zo48xuKps5DtSNxyS7NA9B2UR 58pmfkjaULFumUMQJ3ss9lRf5H+FM/ymsDFPB537ZXFmNUSGpLJCo1fEEs3fJ+CPsEI9 L6qWsvGsNajJfVEm86C8J9cmir3VHXRjfmpN1jEiL7LWG191rOhzJeu/MZwzP1jq5H+h mVbuSl7Sr8lY1VOLXkqS3q3KgxW02qVnCGFOsMhceeNRWgDA7jmF7OyrDGWOCZ9PhuiM QTpBeQcY2nZqE1Sb6lu1nn7zjbF2qqv46Yk2xHLuJggKMC+yjo3Y1u5QrjPuEnwmOHt+ IZ1Q== X-Gm-Message-State: AOJu0YxHvMqhwi1uxiBOzdwyfyeQiuq52Nv9NgJWsgBGQ9yxP1k0NCPD 7zAY05S3/N8Im2GsgMZmJ8lHBcsl5ctV1K9Gu69Iaypr6gkXzufwHS7GuzHIdw== X-Gm-Gg: AY/fxX5SsKi7XWVSY8LUf4h3R+pgL9mufZyUKFc9KfO8pqV0j0anxkfDtJCEUmOKCB4 ZPm1rPJ8iaZaymSM4or4sbCsWgJnuRktqhlKNG98hKnqWKCySu7TiTLl76DTsxQlswr3KwX3Gcu Zl1eLgWANGKcIVZyUEJ241TL1jeHhwU/8NEAwOgcfFTVvWPaR18F3OTHvmAaEDlIH67SZwweooQ Z4fkuQsQEs57A2s/mUL3LTfr+tcmBem/dIW5ZOn55fyQ8FdKEHr1nsBn3FZv7DgLej8sRsrmwmS 5o63v4XekPc5vHWTjpISi+gYwxEiaacurEY7L/D2h9OX5aamiAvkEAuWxP8J8B0CgfMcytkdwkz 2JAWHUuphbR+lv7mK+2OnjEiq91SGHquEiuh3mOGqoQCFLil5Da6BfB5kWEZxt+V0OjGR/PemnY VcsI9oQMomloDGhssqLwvWxG/SUaJlAE+pizdO3mvfr2LVAPtOLaXF5iZPFRkEY2kz X-Google-Smtp-Source: AGHT+IE99p/CLtv5Zj8y/txZ2Wbbjq0dZuLvZFBHO9UfljnaNFb8iqcEoGGSdqeGjdp54IRzV0pUjw== X-Received: by 2002:a05:600c:83c7:b0:479:3a86:dc1c with SMTP id 5b1f17b1804b1-47d84b52e31mr108307525e9.36.1767966286873; Fri, 09 Jan 2026 05:44:46 -0800 (PST) Received: from localhost (brnt-04-b2-v4wan-170138-cust2432.vm7.cable.virginm.net. [94.175.9.129]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-47d8636cb0dsm73838105e9.0.2026.01.09.05.44.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Jan 2026 05:44:45 -0800 (PST) From: Stafford Horne To: LKML Cc: Linux OpenRISC , Stafford Horne , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonas Bonn , Stefan Kristiansson , devicetree@vger.kernel.org Subject: [PATCH v3 6/6] openrisc: dts: Add de0 nano multicore config and devicetree Date: Fri, 9 Jan 2026 13:43:57 +0000 Message-ID: <20260109134409.2153333-7-shorne@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260109134409.2153333-1-shorne@gmail.com> References: <20260109134409.2153333-1-shorne@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a multicore configuration for the Terasic de0 nano FPGA development board. This SoC runs 2 OpenRISC CPUs at 50Mhz with 32MB ram, UART for console and GPIOs for LEDs. This FPGA SoC is based on the simple-smp reference board and brings in devices from the de0 nano common DTSI file. A default config is added that brings together the device tree and driver setup. Link: https://github.com/stffrdhrn/de0_nano-multicore Signed-off-by: Stafford Horne --- arch/openrisc/boot/dts/de0-nano-multicore.dts | 25 +++++ .../configs/de0_nano_multicore_defconfig | 92 +++++++++++++++++++ 2 files changed, 117 insertions(+) create mode 100644 arch/openrisc/boot/dts/de0-nano-multicore.dts create mode 100644 arch/openrisc/configs/de0_nano_multicore_defconfig diff --git a/arch/openrisc/boot/dts/de0-nano-multicore.dts b/arch/openrisc/= boot/dts/de0-nano-multicore.dts new file mode 100644 index 000000000000..b6cf286afaa4 --- /dev/null +++ b/arch/openrisc/boot/dts/de0-nano-multicore.dts @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include + +/dts-v1/; + +#include "simple-smp.dtsi" +#include "de0-nano-common.dtsi" + +/ { + model =3D "Terasic DE0 Nano - Multicore"; +}; + +&cpu0 { + clock-frequency =3D <50000000>; +}; + +&cpu1 { + clock-frequency =3D <50000000>; +}; + +&serial0 { + clock-frequency =3D <50000000>; +}; diff --git a/arch/openrisc/configs/de0_nano_multicore_defconfig b/arch/open= risc/configs/de0_nano_multicore_defconfig new file mode 100644 index 000000000000..d33b1226e09c --- /dev/null +++ b/arch/openrisc/configs/de0_nano_multicore_defconfig @@ -0,0 +1,92 @@ +CONFIG_LOCALVERSION=3D"-de0nano-smp" +CONFIG_SYSVIPC=3Dy +CONFIG_POSIX_MQUEUE=3Dy +CONFIG_NO_HZ=3Dy +CONFIG_LOG_BUF_SHIFT=3D14 +CONFIG_BLK_DEV_INITRD=3Dy +# CONFIG_RD_GZIP is not set +# CONFIG_RD_BZIP2 is not set +# CONFIG_RD_LZMA is not set +# CONFIG_RD_XZ is not set +# CONFIG_RD_LZO is not set +# CONFIG_RD_LZ4 is not set +CONFIG_EXPERT=3Dy +# CONFIG_EPOLL is not set +# CONFIG_TIMERFD is not set +# CONFIG_EVENTFD is not set +# CONFIG_AIO is not set +CONFIG_KALLSYMS_ALL=3Dy +CONFIG_DCACHE_WRITETHROUGH=3Dy +CONFIG_BUILTIN_DTB_NAME=3D"de0-nano-multicore" +CONFIG_OPENRISC_HAVE_INST_CMOV=3Dy +CONFIG_SMP=3Dy +CONFIG_HZ_100=3Dy +CONFIG_JUMP_LABEL=3Dy +# CONFIG_BLOCK is not set +CONFIG_SLUB_TINY=3Dy +# CONFIG_COMPAT_BRK is not set +# CONFIG_VM_EVENT_COUNTERS is not set +CONFIG_NET=3Dy +CONFIG_PACKET=3Dy +CONFIG_UNIX=3Dy +CONFIG_UNIX_DIAG=3Dy +CONFIG_INET=3Dy +CONFIG_IP_MULTICAST=3Dy +CONFIG_TCP_CONG_ADVANCED=3Dy +# CONFIG_TCP_CONG_BIC is not set +# CONFIG_TCP_CONG_CUBIC is not set +# CONFIG_TCP_CONG_WESTWOOD is not set +# CONFIG_TCP_CONG_HTCP is not set +# CONFIG_IPV6 is not set +# CONFIG_WIRELESS is not set +CONFIG_DEVTMPFS=3Dy +CONFIG_DEVTMPFS_MOUNT=3Dy +# CONFIG_PREVENT_FIRMWARE_BUILD is not set +# CONFIG_FW_LOADER is not set +CONFIG_NETDEVICES=3Dy +CONFIG_ETHOC=3Dy +CONFIG_MICREL_PHY=3Dy +# CONFIG_WLAN is not set +# CONFIG_INPUT is not set +# CONFIG_SERIO is not set +# CONFIG_VT is not set +# CONFIG_LEGACY_PTYS is not set +CONFIG_SERIAL_8250=3Dy +CONFIG_SERIAL_8250_CONSOLE=3Dy +CONFIG_SERIAL_OF_PLATFORM=3Dy +# CONFIG_HW_RANDOM is not set +CONFIG_GPIO_SYSFS=3Dy +# CONFIG_GPIO_CDEV_V1 is not set +CONFIG_GPIO_GENERIC_PLATFORM=3Dy +# CONFIG_HWMON is not set +# CONFIG_USB_SUPPORT is not set +CONFIG_NEW_LEDS=3Dy +CONFIG_LEDS_CLASS=3Dy +CONFIG_LEDS_GPIO=3Dy +CONFIG_LEDS_TRIGGERS=3Dy +CONFIG_LEDS_TRIGGER_TIMER=3Dy +CONFIG_LEDS_TRIGGER_ONESHOT=3Dy +CONFIG_LEDS_TRIGGER_HEARTBEAT=3Dy +CONFIG_LEDS_TRIGGER_CPU=3Dy +CONFIG_LEDS_TRIGGER_ACTIVITY=3Dy +CONFIG_LEDS_TRIGGER_GPIO=3Dy +CONFIG_LEDS_TRIGGER_DEFAULT_ON=3Dy +CONFIG_LEDS_TRIGGER_TRANSIENT=3Dy +CONFIG_LEDS_TRIGGER_PANIC=3Dy +CONFIG_LEDS_TRIGGER_NETDEV=3Dy +CONFIG_LEDS_TRIGGER_PATTERN=3Dy +CONFIG_LEDS_TRIGGER_TTY=3Dy +# CONFIG_DNOTIFY is not set +CONFIG_TMPFS=3Dy +CONFIG_NFS_FS=3Dy +CONFIG_XZ_DEC=3Dy +CONFIG_PRINTK_TIME=3Dy +CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=3Dy +CONFIG_GDB_SCRIPTS=3Dy +CONFIG_VMLINUX_MAP=3Dy +CONFIG_HARDLOCKUP_DETECTOR=3Dy +CONFIG_WQ_WATCHDOG=3Dy +CONFIG_WQ_CPU_INTENSIVE_REPORT=3Dy +CONFIG_STACKTRACE=3Dy +CONFIG_RCU_CPU_STALL_CPUTIME=3Dy +# CONFIG_RCU_TRACE is not set --=20 2.51.0