From patchwork Fri Nov 26 01:52:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qing Zhang X-Patchwork-Id: 12640025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C87B2C433FE for ; Fri, 26 Nov 2021 01:54:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357508AbhKZB5q (ORCPT ); Thu, 25 Nov 2021 20:57:46 -0500 Received: from mail.loongson.cn ([114.242.206.163]:35568 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1349802AbhKZBzn (ORCPT ); Thu, 25 Nov 2021 20:55:43 -0500 Received: from localhost.localdomain (unknown [113.200.148.30]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9Dx_9PSPaBh1ooBAA--.6419S2; Fri, 26 Nov 2021 09:52:18 +0800 (CST) From: Qing Zhang To: Rob Herring , Thomas Bogendoerfer Cc: Jiaxun Yang , devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v9 1/3] MIPS: Loongson64: Add Loongson-2K1000 reset platform driver Date: Fri, 26 Nov 2021 09:52:14 +0800 Message-Id: <20211126015216.26605-1-zhangqing@loongson.cn> X-Mailer: git-send-email 2.31.0 MIME-Version: 1.0 X-CM-TRANSID: AQAAf9Dx_9PSPaBh1ooBAA--.6419S2 X-Coremail-Antispam: 1UD129KBjvJXoWxAFW3tw4fAFyfGFy5Kr4Uurg_yoW5Wr1fpF Z8Cw43Ar4rXa17Ka1fJFyUuFW5ZwnayFWj9Fy2v34UZas8WFZ5J3Zrta4FvF9rWr1xJFWa qFsYqFW5CF4ruw7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUkab7Iv0xC_Kw4lb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rw A2F7IY1VAKz4vEj48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xII jxv20xvEc7CjxVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjc xK6I8E87Iv6xkF7I0E14v26F4UJVW0owAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40E FcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUGVWUXwAv7VC2z280aVAFwI0_Gr 0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JMxkIecxEwVAFwVWkMxAI w28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr 4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxG rwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWUJVW8Jw CI42IY6xAIw20EY4v20xvaj40_WFyUJVCq3wCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY 6I8E87Iv6xkF7I0E14v26r1j6r4UYxBIdaVFxhVjvjDU0xZFpf9x07bOWl9UUUUU= X-CM-SenderInfo: x2kd0wptlqwqxorr0wxvrqhubq/ Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Add power management register operations to support reboot and poweroff. Signed-off-by: Qing Zhang --- v8-v9: No change --- drivers/platform/mips/Kconfig | 6 ++++ drivers/platform/mips/Makefile | 1 + drivers/platform/mips/ls2k-reset.c | 53 ++++++++++++++++++++++++++++++ 3 files changed, 60 insertions(+) create mode 100644 drivers/platform/mips/ls2k-reset.c diff --git a/drivers/platform/mips/Kconfig b/drivers/platform/mips/Kconfig index 8ac149173c64b..d421e14823957 100644 --- a/drivers/platform/mips/Kconfig +++ b/drivers/platform/mips/Kconfig @@ -30,4 +30,10 @@ config RS780E_ACPI help Loongson RS780E PCH ACPI Controller driver. +config LS2K_RESET + bool "Loongson-2K1000 Reset Controller" + depends on MACH_LOONGSON64 || COMPILE_TEST + help + Loongson-2K1000 Reset Controller driver. + endif # MIPS_PLATFORM_DEVICES diff --git a/drivers/platform/mips/Makefile b/drivers/platform/mips/Makefile index 1781490987773..4c71444e453a6 100644 --- a/drivers/platform/mips/Makefile +++ b/drivers/platform/mips/Makefile @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CPU_HWMON) += cpu_hwmon.o obj-$(CONFIG_RS780E_ACPI) += rs780e-acpi.o +obj-$(CONFIG_LS2K_RESET) += ls2k-reset.o diff --git a/drivers/platform/mips/ls2k-reset.c b/drivers/platform/mips/ls2k-reset.c new file mode 100644 index 0000000000000..b70e7b8a092c2 --- /dev/null +++ b/drivers/platform/mips/ls2k-reset.c @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2021, Qing Zhang + * Loongson-2K1000 reset support + */ + +#include +#include +#include + +#define PM1_STS 0x0c /* Power Management 1 Status Register */ +#define PM1_CNT 0x14 /* Power Management 1 Control Register */ +#define RST_CNT 0x30 /* Reset Control Register */ + +static void __iomem *base; + +static void ls2k_restart(char *command) +{ + writel(0x1, base + RST_CNT); +} + +static void ls2k_poweroff(void) +{ + /* Clear */ + writel((readl(base + PM1_STS) & 0xffffffff), base + PM1_STS); + /* Sleep Enable | Soft Off*/ + writel(GENMASK(12, 10) | BIT(13), base + PM1_CNT); +} + +static int ls2k_reset_init(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "loongson,ls2k-pm"); + if (!np) { + pr_info("Failed to get PM node\n"); + return -ENODEV; + } + + base = of_iomap(np, 0); + if (!base) { + pr_info("Failed to map PM register base address\n"); + return -ENOMEM; + } + + _machine_restart = ls2k_restart; + pm_power_off = ls2k_poweroff; + + of_node_put(np); + return 0; +} + +arch_initcall(ls2k_reset_init); From patchwork Fri Nov 26 01:52:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qing Zhang X-Patchwork-Id: 12640023 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F6E9C43217 for ; Fri, 26 Nov 2021 01:54:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357518AbhKZB5r (ORCPT ); Thu, 25 Nov 2021 20:57:47 -0500 Received: from mail.loongson.cn ([114.242.206.163]:35566 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1357501AbhKZBzn (ORCPT ); Thu, 25 Nov 2021 20:55:43 -0500 Received: from localhost.localdomain (unknown [113.200.148.30]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9Dx_9PSPaBh1ooBAA--.6419S3; Fri, 26 Nov 2021 09:52:19 +0800 (CST) From: Qing Zhang To: Rob Herring , Thomas Bogendoerfer Cc: Jiaxun Yang , devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v9 2/3] MIPS: Loongson64: DTS: Add pm block node for Loongson-2K1000 Date: Fri, 26 Nov 2021 09:52:15 +0800 Message-Id: <20211126015216.26605-2-zhangqing@loongson.cn> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20211126015216.26605-1-zhangqing@loongson.cn> References: <20211126015216.26605-1-zhangqing@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf9Dx_9PSPaBh1ooBAA--.6419S3 X-Coremail-Antispam: 1UD129KBjvdXoW7XF43KFWrZr1rAryxuryDJrb_yoWfCrb_t3 ZFk3WkGrWfJFW3J34UXr1UJFy3u3y7A3WrCF1kXF1Yqas0ywnxJFWUAaykGry3GFyj9rn3 Xw48Wr1kAFWxKjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbS8YjsxI4VW3JwAYFVCjjxCrM7AC8VAFwI0_Gr0_Xr1l1xkIjI8I 6I8E6xAIw20EY4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l82xGYIkIc2x26280x7 IE14v26r18M28IrcIa0xkI8VCY1x0267AKxVWUCVW8JwA2ocxC64kIII0Yj41l84x0c7CE w4AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26ryj6F1UM28EF7xvwVC0I7IYx2IY6x kF7I0E14v26r4UJVWxJr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280 aVCY1x0267AKxVWxJr0_GcWle2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4 CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_JrI_JrylYx0Ex4A2jsIE14v26r4j6F4UMcvj eVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCY02Avz4vE14v_KwCF04k20xvY0x 0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E 7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_JF0_Jw1lIxkGc2Ij64vIr41lIxAIcV C0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF 04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7 CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07jrdbbUUUUU= X-CM-SenderInfo: x2kd0wptlqwqxorr0wxvrqhubq/ Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The module is now supported, enable it. Signed-off-by: Qing Zhang --- v8-v9: No change --- arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi index bfc3d3243ee7f..8143a61111e33 100644 --- a/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi +++ b/arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi @@ -52,6 +52,11 @@ package0: bus@10000000 { 0 0x40000000 0 0x40000000 0 0x40000000 0xfe 0x00000000 0xfe 0x00000000 0 0x40000000>; + pm: reset-controller@1fe07000 { + compatible = "loongson,ls2k-pm"; + reg = <0 0x1fe07000 0 0x422>; + }; + liointc0: interrupt-controller@1fe11400 { compatible = "loongson,liointc-2.0"; reg = <0 0x1fe11400 0 0x40>, From patchwork Fri Nov 26 01:52:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qing Zhang X-Patchwork-Id: 12640021 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6EDBEC433EF for ; Fri, 26 Nov 2021 01:54:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357603AbhKZB5p (ORCPT ); Thu, 25 Nov 2021 20:57:45 -0500 Received: from mail.loongson.cn ([114.242.206.163]:35570 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1357502AbhKZBzn (ORCPT ); Thu, 25 Nov 2021 20:55:43 -0500 Received: from localhost.localdomain (unknown [113.200.148.30]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9Dx_9PSPaBh1ooBAA--.6419S4; Fri, 26 Nov 2021 09:52:19 +0800 (CST) From: Qing Zhang To: Rob Herring , Thomas Bogendoerfer Cc: Jiaxun Yang , devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v9 3/3] dt-bindings: mips: Add Loongson-2K1000 reset support Date: Fri, 26 Nov 2021 09:52:16 +0800 Message-Id: <20211126015216.26605-3-zhangqing@loongson.cn> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20211126015216.26605-1-zhangqing@loongson.cn> References: <20211126015216.26605-1-zhangqing@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf9Dx_9PSPaBh1ooBAA--.6419S4 X-Coremail-Antispam: 1UD129KBjvJXoWxJF15Xw13Zr1rtF1kCr1xXwb_yoW8XF4rpF nxC3W7Kr4F9F13uws3KFy8Aw1rZr9aya4xXF47tr1Dtwn8Ga1Yvw1ak3Z8ZF17GF18XFWU XFZ7urWUKa42kw7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUB2b7Iv0xC_Zr1lb4IE77IF4wAFF20E14v26ryj6rWUM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI 8067AKxVWUXwA2048vs2IY020Ec7CjxVAFwI0_Gr0_Xr1l8cAvFVAK0II2c7xJM28CjxkF 64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcV CY1x0267AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2 jsIEc7CjxVAFwI0_Cr1j6rxdM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64 kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv67AKxVW8JVWxJwAm 72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lc2xSY4AK67AK6w4l42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6x kF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjxUIg18DUUUU X-CM-SenderInfo: x2kd0wptlqwqxorr0wxvrqhubq/ Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Switch the DT binding to a YAML schema to enable the DT validation. Signed-off-by: Qing Zhang Reviewed-by: Rob Herring --- v8-v9: only modify 'make DT_CHECKER_FLAGS=-m dt_binding_check' warnings/errors --- .../bindings/mips/loongson/ls2k-reset.yaml | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/mips/loongson/ls2k-reset.yaml diff --git a/Documentation/devicetree/bindings/mips/loongson/ls2k-reset.yaml b/Documentation/devicetree/bindings/mips/loongson/ls2k-reset.yaml new file mode 100644 index 0000000000000..20b5836efd90a --- /dev/null +++ b/Documentation/devicetree/bindings/mips/loongson/ls2k-reset.yaml @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/mips/loongson/ls2k-reset.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Loongson 2K1000 PM Controller + +maintainers: + - Qing Zhang + +description: | + This controller can be found in Loongson-2K1000 Soc systems. + +properties: + compatible: + const: loongson,ls2k-pm + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + bus { + #address-cells = <2>; + #size-cells = <2>; + pm: reset-controller@1fe07000 { + compatible = "loongson,ls2k-pm"; + reg = <0 0x1fe07000 0 0x422>; + }; + }; +...