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GET /api/1.0/patches/2219669/?format=api
{ "id": 2219669, "url": "http://patchwork.ozlabs.org/api/1.0/patches/2219669/?format=api", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/1.0/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260403162541.86608-7-sgdfkk@163.com>", "date": "2026-04-03T16:25:40", "name": "[v7,6/7] mips: loongson: add watchdog driver", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "89111d1f2098047599ab67de007204477234a042", "submitter": { "id": 92844, "url": "http://patchwork.ozlabs.org/api/1.0/people/92844/?format=api", "name": null, "email": "sgdfkk@163.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260403162541.86608-7-sgdfkk@163.com/mbox/", "series": [ { "id": 498655, "url": "http://patchwork.ozlabs.org/api/1.0/series/498655/?format=api", "date": "2026-04-03T16:25:35", "name": "add loongson mips ls1c300 initial support", "version": 7, "mbox": "http://patchwork.ozlabs.org/series/498655/mbox/" } ], "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2219669/checks/", "tags": {}, "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256\n header.s=s110527 header.b=HmDOGogs;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de;\n envelope-from=u-boot-bounces@lists.denx.de; receiver=patchwork.ozlabs.org)", "phobos.denx.de;\n dmarc=pass (p=none dis=none) header.from=163.com", "phobos.denx.de;\n spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de", "phobos.denx.de;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=163.com header.i=@163.com header.b=\"HmDOGogs\";\n\tdkim-atps=neutral", "phobos.denx.de;\n dmarc=pass (p=none dis=none) header.from=163.com", "phobos.denx.de; spf=pass smtp.mailfrom=sgdfkk@163.com" ], "Received": [ "from phobos.denx.de (phobos.denx.de\n [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fnPHw6hY2z1xtJ\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 04 Apr 2026 03:26:52 +1100 (AEDT)", "from h2850616.stratoserver.net (localhost [IPv6:::1])\n\tby phobos.denx.de (Postfix) with ESMTP id 7AC0F84150;\n\tFri, 3 Apr 2026 18:26:05 +0200 (CEST)", "by phobos.denx.de (Postfix, from userid 109)\n id 7E05F84120; Fri, 3 Apr 2026 18:25:56 +0200 (CEST)", "from m16.mail.163.com (m16.mail.163.com [220.197.31.2])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))\n (No client certificate requested)\n by phobos.denx.de (Postfix) with ESMTPS id F17DF84129\n for <u-boot@lists.denx.de>; Fri, 3 Apr 2026 18:25:52 +0200 (CEST)", "from server-e.. (unknown [])\n by gzsmtp3 (Coremail) with SMTP id PigvCgAnAXQF6s9pHqSgBw--.137S8;\n Sat, 04 Apr 2026 00:25:49 +0800 (CST)" ], "X-Spam-Checker-Version": "SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de", "X-Spam-Level": "", "X-Spam-Status": "No, score=-0.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,\n DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,HK_RANDOM_ENVFROM,\n HK_RANDOM_FROM,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,\n RCVD_IN_VALIDITY_CERTIFIED_BLOCKED,RCVD_IN_VALIDITY_RPBL_BLOCKED,\n SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY autolearn=no\n autolearn_force=no version=3.4.2", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com;\n s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=cq\n dl/LKXm83Ps+WPoF0u7l8My3zpM3X7QFaLQgTnaa8=; b=HmDOGogsGDuhfBcDeh\n ak1XfCOD0HFRxnd0HKavIW743xoxms0OflB9K3yWoYD0lN6z/0lcUFCkGSohvdUU\n NK3cn4hKdGg7mE0O5bJ4GIOE+Y+ikeX69WeVYP1umy1WqbImzykhI1hBu1C4JkkG\n TqtB/N9trvtcTFi0T8TIo11J4=", "From": "sgdfkk@163.com", "To": "u-boot@lists.denx.de", "Cc": "Du Huanpeng <u74147@gmail.com>", "Subject": "[PATCH v7 6/7] mips: loongson: add watchdog driver", "Date": "Sat, 4 Apr 2026 00:25:40 +0800", "Message-ID": "<20260403162541.86608-7-sgdfkk@163.com>", "X-Mailer": "git-send-email 2.43.0", "In-Reply-To": "<20260403162541.86608-1-sgdfkk@163.com>", "References": "<20260403162541.86608-1-sgdfkk@163.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-CM-TRANSID": "PigvCgAnAXQF6s9pHqSgBw--.137S8", "X-Coremail-Antispam": "1Uf129KBjvJXoWxZw17AFWkKr1DtryUtF48Xrb_yoWrtw4fpF\n 4Sy34FgrW7tr47WrZ3JayDXFs8C3yY9Fy3tFyxGw1rurnxAF98X395KF9rta97Zry3JrW5\n Zay8KFy8Ga15CrDanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07UBuWLUUUUU=", "X-Originating-IP": "[240e:3b0:4805:581::3001]", "X-CM-SenderInfo": "xvjgwyrn6rljoofrz/xtbCvw0MY2nP6g3IYQAA31", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "From: Du Huanpeng <u74147@gmail.com>\n\nsupports watchdog in loongson mips embedded SoCs\n\nSigned-off-by: Du Huanpeng <u74147@gmail.com>\n---\n drivers/watchdog/Kconfig | 8 ++\n drivers/watchdog/Makefile | 1 +\n drivers/watchdog/loongson_wdt.c | 127 ++++++++++++++++++++++++++++++++\n 3 files changed, 136 insertions(+)\n create mode 100644 drivers/watchdog/loongson_wdt.c", "diff": "diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig\nindex 416d29d256a..beba5475e03 100644\n--- a/drivers/watchdog/Kconfig\n+++ b/drivers/watchdog/Kconfig\n@@ -214,6 +214,14 @@ config SPL_WDT_GPIO\n \thelp\n \t Support for external watchdog fed by toggling a gpio in SPL.\n \n+config WDT_LOONGSON\n+\tbool \"Loongson MIPS watchdog timer support\"\n+\tdepends on WDT\n+\thelp\n+\t Select this to enable watchdog timer for Loongson SoCs.\n+\t The watchdog timer is stopped when initialized.\n+\t It performs full SoC reset.\n+\n config WDT_MAX6370\n \tbool \"MAX6370 watchdog timer support\"\n \tdepends on WDT\ndiff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile\nindex 02e2674f8af..e9ffb417050 100644\n--- a/drivers/watchdog/Makefile\n+++ b/drivers/watchdog/Makefile\n@@ -33,6 +33,7 @@ obj-$(CONFIG_WDT_DA9063) += da9063-wdt.o\n obj-$(CONFIG_WDT_DAVINCI) += davinci_wdt.o\n obj-$(CONFIG_WDT_FTWDT010) += ftwdt010_wdt.o\n obj-$(CONFIG_$(SPL_TPL_)WDT_GPIO) += gpio_wdt.o\n+obj-$(CONFIG_WDT_LOONGSON) += loongson_wdt.o\n obj-$(CONFIG_WDT_MAX6370) += max6370_wdt.o\n obj-$(CONFIG_WDT_MCF) += mcf_wdt.o\n obj-$(CONFIG_WDT_MESON_GXBB) += meson_gxbb_wdt.o\ndiff --git a/drivers/watchdog/loongson_wdt.c b/drivers/watchdog/loongson_wdt.c\nnew file mode 100644\nindex 00000000000..4d34d70296e\n--- /dev/null\n+++ b/drivers/watchdog/loongson_wdt.c\n@@ -0,0 +1,127 @@\n+// SPDX-License-Identifier: GPL-2.0\n+/*\n+ * Watchdog driver for MediaTek SoCs\n+ *\n+ * Copyright (C) 2018 MediaTek Inc.\n+ * Author: Ryder Lee <ryder.lee@mediatek.com>\n+ *\n+ * based on: drivers/watchdog/mtk_wdt.c\n+ * Copyright (C) 2020-2026 Du Huanpeng <u74147@gmail.com>\n+ */\n+\n+#include <dm.h>\n+#include <hang.h>\n+#include <wdt.h>\n+#include <asm/io.h>\n+#include <clk.h>\n+#include <dm/device_compat.h>\n+#include <linux/time.h>\n+\n+struct loongson_wdt_priv {\n+\tvoid __iomem *base;\n+#define WDT_EN\t\t0\n+#define WDT_TIMER\t4\n+#define WDT_SET\t\t8\n+\tulong clock;\n+\tunsigned long timeout;\n+};\n+\n+static int loongson_wdt_reset(struct udevice *dev)\n+{\n+\tstruct loongson_wdt_priv *priv = dev_get_priv(dev);\n+\n+\twritel(priv->timeout, priv->base + WDT_TIMER);\n+\twritel(1, priv->base + WDT_SET);\n+\n+\treturn 0;\n+}\n+\n+static int loongson_wdt_stop(struct udevice *dev)\n+{\n+\tstruct loongson_wdt_priv *priv = dev_get_priv(dev);\n+\n+\twritel(0, priv->base + WDT_EN);\n+\treturn 0;\n+}\n+\n+static int loongson_wdt_expire_now(struct udevice *dev, ulong flags)\n+{\n+\tstruct loongson_wdt_priv *priv = dev_get_priv(dev);\n+\n+\twritel(1, priv->base + WDT_EN);\n+\twritel(1, priv->base + WDT_TIMER);\n+\twritel(1, priv->base + WDT_SET);\n+\n+\thang();\n+\treturn 0;\n+}\n+\n+static int loongson_wdt_start(struct udevice *dev, u64 timeout_ms, ulong flags)\n+{\n+\tstruct loongson_wdt_priv *priv = dev_get_priv(dev);\n+\tunsigned int timeout;\n+\n+\ttimeout = U32_MAX / (priv->clock / MSEC_PER_SEC);\n+\n+\tif (timeout < timeout_ms)\n+\t\ttimeout = U32_MAX;\n+\telse\n+\t\ttimeout = timeout_ms * (priv->clock / MSEC_PER_SEC);\n+\n+\tdebug(\"WDT: reload = %08x\\n\", timeout);\n+\n+\twritel(1, priv->base + WDT_EN);\n+\twritel(timeout, priv->base + WDT_TIMER);\n+\twritel(1, priv->base + WDT_SET);\n+\n+\tpriv->timeout = timeout;\n+\n+\treturn 0;\n+}\n+\n+static int loongson_wdt_probe(struct udevice *dev)\n+{\n+\tstruct loongson_wdt_priv *priv = dev_get_priv(dev);\n+\tstruct clk cl;\n+\tulong clock;\n+\n+\tpriv->base = dev_remap_addr(dev);\n+\tif (!priv->base)\n+\t\treturn -ENOENT;\n+\n+\tif (clk_get_by_index(dev, 0, &cl) == 0)\n+\t\tclock = clk_get_rate(&cl);\n+\n+\tdebug(\"WDT: clock = %ld\\n\", clock);\n+\n+\tif (IS_ERR_VALUE(clock)) {\n+\t\tdev_err(dev, \"failed to get rate\\n\");\n+\t\treturn clock;\n+\t}\n+\n+\tpriv->clock = clock;\n+\twritel(0, priv->base + WDT_EN);\n+\treturn 0;\n+}\n+\n+static const struct wdt_ops loongson_wdt_ops = {\n+\t.start = loongson_wdt_start,\n+\t.reset = loongson_wdt_reset,\n+\t.stop = loongson_wdt_stop,\n+\t.expire_now = loongson_wdt_expire_now,\n+};\n+\n+static const struct udevice_id loongson_wdt_ids[] = {\n+\t{ .compatible = \"loongson,ls1c300-wdt\"},\n+\t{}\n+};\n+\n+U_BOOT_DRIVER(loongson_wdt) = {\n+\t.name = \"loongson_wdt\",\n+\t.id = UCLASS_WDT,\n+\t.of_match = loongson_wdt_ids,\n+\t.priv_auto = sizeof(struct loongson_wdt_priv),\n+\t.probe = loongson_wdt_probe,\n+\t.ops = &loongson_wdt_ops,\n+\t.flags = DM_FLAG_PRE_RELOC,\n+};\n", "prefixes": [ "v7", "6/7" ] }