From patchwork Fri Jun 30 16:58:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 698414 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 4732CEB64DA for ; Fri, 30 Jun 2023 17:00:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232834AbjF3RAK (ORCPT ); Fri, 30 Jun 2023 13:00:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232760AbjF3Q7e (ORCPT ); Fri, 30 Jun 2023 12:59:34 -0400 Received: from mail-wr1-x433.google.com (mail-wr1-x433.google.com [IPv6:2a00:1450:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1F86A44A2 for ; Fri, 30 Jun 2023 09:58:57 -0700 (PDT) Received: by mail-wr1-x433.google.com with SMTP id ffacd0b85a97d-31114b46d62so2347038f8f.3 for ; Fri, 30 Jun 2023 09:58:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1688144336; x=1690736336; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=4FgwEHIiufvN4/vrAM+EmRTKMvuGIUCUJpN7+/AjohE=; b=zJKm1O3gqfl+/l50NqDCQVslJww9J04yE89jZ5f/lU/O9RkBXTLjndN7cOTiCR52d+ 2rWtrBCNymviRY86hDdMyCddB6ShlNjbD6K2lo5+z+o6X1NUfJdkYXxeNPy7ld4+Lh+2 sYysn1DdGwZGblXk6RYANZeFevQ97VVVYiUMJJnpLk0D3ssCK1znw7XESfsbUN7O7GeR DQhavB0xiTESX7UaUitfbY6F/PHswbOkNBRvzi651+5RWH5QtNkO4lu0WopUCi8jZroa WgCPdF9MdRJx9PfrdQM8jMACd94F5U0aUvHS7+r0CDEvdNETaEHZJC54c+0x55olTUwM ZOqw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688144336; x=1690736336; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=4FgwEHIiufvN4/vrAM+EmRTKMvuGIUCUJpN7+/AjohE=; b=LH/C64/Ad/zl12QPxgrPEIaEkYTCposagBEJ32vVy0TuxqbEiNswFDgASGc6CUg7uv CeHEL1Gqhhkyqd5JVJHGqFFd4/+Cv4WUHMjeIV9LUe+UnnQrHD032odOh1Txc/ubfC/K 5vGRodWjlEWwpShj547JTwrYqGrllmwo0v3GKKSZwlV2OVqPSvInmqQF5mLhVtC+CiBQ wBMikgIexVj7fTmxEZ1jfW6RflDB857ka1hLepwXIE5Ydk4DpvP2wMLfSHLA4y86An1s d+CGvszFSn1zwReej2DCw5RqoiKkhW1w9Ds5XI/0tYeJBBAxCECtX6CKbTMgMEPYKLr5 DUdg== X-Gm-Message-State: ABy/qLZuekBNJ61RuovUMxJ2j19unAUDZZmz+BncGqAduEEjH9ElkFyS 9lf/51vqaI8uB4S8JsQYky0XOA== X-Google-Smtp-Source: APBJJlF+HR7IlwOv6BGJulPd3da1YOPyBnMGP5I0+G0uGCgFrxABHVR8qHNl0+04XrjGbTvktRYacg== X-Received: by 2002:adf:ed0a:0:b0:314:13e2:2f6c with SMTP id a10-20020adfed0a000000b0031413e22f6cmr2444524wro.58.1688144336059; Fri, 30 Jun 2023 09:58:56 -0700 (PDT) Received: from arrakeen.starnux.net ([2a01:e0a:982:cbb0:52eb:f6ff:feb3:451a]) by smtp.gmail.com with ESMTPSA id u14-20020adfdb8e000000b003112ab916cdsm18913772wri.73.2023.06.30.09.58.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Jun 2023 09:58:55 -0700 (PDT) From: Neil Armstrong Date: Fri, 30 Jun 2023 18:58:37 +0200 Subject: [PATCH v2 12/15] power: reset: oxnas-restart: remove obsolete restart driver MIME-Version: 1.0 Message-Id: <20230630-topic-oxnas-upstream-remove-v2-12-fb6ab3dea87c@linaro.org> References: <20230630-topic-oxnas-upstream-remove-v2-0-fb6ab3dea87c@linaro.org> In-Reply-To: <20230630-topic-oxnas-upstream-remove-v2-0-fb6ab3dea87c@linaro.org> To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Daniel Lezcano , Thomas Gleixner , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Sebastian Reichel , Marc Zyngier Cc: linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-oxnas@groups.io, Neil Armstrong , Sebastian Reichel , Arnd Bergmann , Daniel Golle X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=11262; i=neil.armstrong@linaro.org; h=from:subject:message-id; bh=NNcUV2Vccp2R6feBFSgnzPy5EF8i0mzkDpw8Uj3QejE=; b=owEBbQKS/ZANAwAKAXfc29rIyEnRAcsmYgBknwm4ttQQcVXfjEc6zcYUSzILYTX7Rne5j6+Afkl3 GWDpCd+JAjMEAAEKAB0WIQQ9U8YmyFYF/h30LIt33NvayMhJ0QUCZJ8JuAAKCRB33NvayMhJ0cU8D/ 95wd5v6ygGkISEKlkwGW17FxM49F6T4SMlre7FJQHzam7WZxMKPHqmGoggmwhs+7qeLZ19TJspfC2n tFh2S5HN+040y+1vUwBeckjBbVeEJcnPszDnRxi3XumlnfKURTDPvQOI7MIhRLuSc9tChMbAMxnu4n QyPICeZm+qpMFgUdy8vKdFU7NKmP6Ge19SkD0k3SfqOB6MNijMGVBlMDJxmfoh9uPiE2KHIDo2Zs9A m1H5ddDX1dWobSPx1pnm/nlNOMAvCE6Af7f+bmGgCPoMOhtHnfYjvpbUlqd/aUSafeQUenqL8a8yY9 7CScsFjys4iQH4or+SGbcwtJkCg5NMLyMREJ+QcJQANd6D/jgefq9lVk+vmnwRKD7BE75cKdWPfX88 EBk3k6ENCFCcR9QOW25EMrbPm0ixsUH9avRngd6oDWeiwM7aoBbjUDk9H1WAT33iVkeG1x7Q+xJBFu rrSGUv+JJYS21nJjOy69NbOyEfAv7A+4KErcxKo9ZwpcG00RCfM59CtWiWEfIGkoPNI9Bx7f3mZlK2 62PSiEzqVumcUqhpMJYajHYLDAV03hudTNXrlfj7JY+iDFERrOxpNmUt1XVQkrSnFoVtDBg34SYtas rVENXk/3r4FDd4mUoo+Sja5jCeaZ5Q92ZWtqP//XHkBl7KP6e7uAZl/m9lCQ== X-Developer-Key: i=neil.armstrong@linaro.org; a=openpgp; fpr=89EC3D058446217450F22848169AB7B1A4CFF8AE Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Due to lack of maintenance and stall of development for a few years now, and since no new features will ever be added upstream, remove support for OX810 and OX820 restart feature. Acked-by: Sebastian Reichel Acked-by: Linus Walleij Acked-by: Arnd Bergmann Acked-by: Daniel Golle Signed-off-by: Neil Armstrong --- drivers/power/reset/Kconfig | 7 -- drivers/power/reset/Makefile | 1 - drivers/power/reset/oxnas-restart.c | 233 ------------------------------------ 3 files changed, 241 deletions(-) diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig index fff07b2bd77b..59e1ebb7842e 100644 --- a/drivers/power/reset/Kconfig +++ b/drivers/power/reset/Kconfig @@ -148,13 +148,6 @@ config POWER_RESET_ODROID_GO_ULTRA_POWEROFF help This driver supports Power off for Odroid Go Ultra device. -config POWER_RESET_OXNAS - bool "OXNAS SoC restart driver" - depends on ARCH_OXNAS - default MACH_OX820 - help - Restart support for OXNAS/PLXTECH OX820 SoC. - config POWER_RESET_PIIX4_POWEROFF tristate "Intel PIIX4 power-off driver" depends on PCI diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile index d763e6735ee3..a95d1bd275d1 100644 --- a/drivers/power/reset/Makefile +++ b/drivers/power/reset/Makefile @@ -14,7 +14,6 @@ obj-$(CONFIG_POWER_RESET_HISI) += hisi-reboot.o obj-$(CONFIG_POWER_RESET_LINKSTATION) += linkstation-poweroff.o obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o obj-$(CONFIG_POWER_RESET_MT6323) += mt6323-poweroff.o -obj-$(CONFIG_POWER_RESET_OXNAS) += oxnas-restart.o obj-$(CONFIG_POWER_RESET_QCOM_PON) += qcom-pon.o obj-$(CONFIG_POWER_RESET_OCELOT_RESET) += ocelot-reset.o obj-$(CONFIG_POWER_RESET_ODROID_GO_ULTRA_POWEROFF) += odroid-go-ultra-poweroff.o diff --git a/drivers/power/reset/oxnas-restart.c b/drivers/power/reset/oxnas-restart.c deleted file mode 100644 index 13090bec058a..000000000000 --- a/drivers/power/reset/oxnas-restart.c +++ /dev/null @@ -1,233 +0,0 @@ -// SPDX-License-Identifier: (GPL-2.0) -/* - * oxnas SoC reset driver - * based on: - * Microsemi MIPS SoC reset driver - * and ox820_assert_system_reset() written by Ma Hajun - * - * Copyright (c) 2013 Ma Hajun - * Copyright (c) 2017 Microsemi Corporation - * Copyright (c) 2020 Daniel Golle - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* bit numbers of reset control register */ -#define OX820_SYS_CTRL_RST_SCU 0 -#define OX820_SYS_CTRL_RST_COPRO 1 -#define OX820_SYS_CTRL_RST_ARM0 2 -#define OX820_SYS_CTRL_RST_ARM1 3 -#define OX820_SYS_CTRL_RST_USBHS 4 -#define OX820_SYS_CTRL_RST_USBHSPHYA 5 -#define OX820_SYS_CTRL_RST_MACA 6 -#define OX820_SYS_CTRL_RST_MAC OX820_SYS_CTRL_RST_MACA -#define OX820_SYS_CTRL_RST_PCIEA 7 -#define OX820_SYS_CTRL_RST_SGDMA 8 -#define OX820_SYS_CTRL_RST_CIPHER 9 -#define OX820_SYS_CTRL_RST_DDR 10 -#define OX820_SYS_CTRL_RST_SATA 11 -#define OX820_SYS_CTRL_RST_SATA_LINK 12 -#define OX820_SYS_CTRL_RST_SATA_PHY 13 -#define OX820_SYS_CTRL_RST_PCIEPHY 14 -#define OX820_SYS_CTRL_RST_STATIC 15 -#define OX820_SYS_CTRL_RST_GPIO 16 -#define OX820_SYS_CTRL_RST_UART1 17 -#define OX820_SYS_CTRL_RST_UART2 18 -#define OX820_SYS_CTRL_RST_MISC 19 -#define OX820_SYS_CTRL_RST_I2S 20 -#define OX820_SYS_CTRL_RST_SD 21 -#define OX820_SYS_CTRL_RST_MACB 22 -#define OX820_SYS_CTRL_RST_PCIEB 23 -#define OX820_SYS_CTRL_RST_VIDEO 24 -#define OX820_SYS_CTRL_RST_DDR_PHY 25 -#define OX820_SYS_CTRL_RST_USBHSPHYB 26 -#define OX820_SYS_CTRL_RST_USBDEV 27 -#define OX820_SYS_CTRL_RST_ARMDBG 29 -#define OX820_SYS_CTRL_RST_PLLA 30 -#define OX820_SYS_CTRL_RST_PLLB 31 - -/* bit numbers of clock control register */ -#define OX820_SYS_CTRL_CLK_COPRO 0 -#define OX820_SYS_CTRL_CLK_DMA 1 -#define OX820_SYS_CTRL_CLK_CIPHER 2 -#define OX820_SYS_CTRL_CLK_SD 3 -#define OX820_SYS_CTRL_CLK_SATA 4 -#define OX820_SYS_CTRL_CLK_I2S 5 -#define OX820_SYS_CTRL_CLK_USBHS 6 -#define OX820_SYS_CTRL_CLK_MACA 7 -#define OX820_SYS_CTRL_CLK_MAC OX820_SYS_CTRL_CLK_MACA -#define OX820_SYS_CTRL_CLK_PCIEA 8 -#define OX820_SYS_CTRL_CLK_STATIC 9 -#define OX820_SYS_CTRL_CLK_MACB 10 -#define OX820_SYS_CTRL_CLK_PCIEB 11 -#define OX820_SYS_CTRL_CLK_REF600 12 -#define OX820_SYS_CTRL_CLK_USBDEV 13 -#define OX820_SYS_CTRL_CLK_DDR 14 -#define OX820_SYS_CTRL_CLK_DDRPHY 15 -#define OX820_SYS_CTRL_CLK_DDRCK 16 - -/* Regmap offsets */ -#define OX820_CLK_SET_REGOFFSET 0x2c -#define OX820_CLK_CLR_REGOFFSET 0x30 -#define OX820_RST_SET_REGOFFSET 0x34 -#define OX820_RST_CLR_REGOFFSET 0x38 -#define OX820_SECONDARY_SEL_REGOFFSET 0x14 -#define OX820_TERTIARY_SEL_REGOFFSET 0x8c -#define OX820_QUATERNARY_SEL_REGOFFSET 0x94 -#define OX820_DEBUG_SEL_REGOFFSET 0x9c -#define OX820_ALTERNATIVE_SEL_REGOFFSET 0xa4 -#define OX820_PULLUP_SEL_REGOFFSET 0xac -#define OX820_SEC_SECONDARY_SEL_REGOFFSET 0x100014 -#define OX820_SEC_TERTIARY_SEL_REGOFFSET 0x10008c -#define OX820_SEC_QUATERNARY_SEL_REGOFFSET 0x100094 -#define OX820_SEC_DEBUG_SEL_REGOFFSET 0x10009c -#define OX820_SEC_ALTERNATIVE_SEL_REGOFFSET 0x1000a4 -#define OX820_SEC_PULLUP_SEL_REGOFFSET 0x1000ac - -struct oxnas_restart_context { - struct regmap *sys_ctrl; - struct notifier_block restart_handler; -}; - -static int ox820_restart_handle(struct notifier_block *this, - unsigned long mode, void *cmd) -{ - struct oxnas_restart_context *ctx = container_of(this, struct - oxnas_restart_context, - restart_handler); - u32 value; - - /* - * Assert reset to cores as per power on defaults - * Don't touch the DDR interface as things will come to an impromptu - * stop NB Possibly should be asserting reset for PLLB, but there are - * timing concerns here according to the docs - */ - value = BIT(OX820_SYS_CTRL_RST_COPRO) | - BIT(OX820_SYS_CTRL_RST_USBHS) | - BIT(OX820_SYS_CTRL_RST_USBHSPHYA) | - BIT(OX820_SYS_CTRL_RST_MACA) | - BIT(OX820_SYS_CTRL_RST_PCIEA) | - BIT(OX820_SYS_CTRL_RST_SGDMA) | - BIT(OX820_SYS_CTRL_RST_CIPHER) | - BIT(OX820_SYS_CTRL_RST_SATA) | - BIT(OX820_SYS_CTRL_RST_SATA_LINK) | - BIT(OX820_SYS_CTRL_RST_SATA_PHY) | - BIT(OX820_SYS_CTRL_RST_PCIEPHY) | - BIT(OX820_SYS_CTRL_RST_STATIC) | - BIT(OX820_SYS_CTRL_RST_UART1) | - BIT(OX820_SYS_CTRL_RST_UART2) | - BIT(OX820_SYS_CTRL_RST_MISC) | - BIT(OX820_SYS_CTRL_RST_I2S) | - BIT(OX820_SYS_CTRL_RST_SD) | - BIT(OX820_SYS_CTRL_RST_MACB) | - BIT(OX820_SYS_CTRL_RST_PCIEB) | - BIT(OX820_SYS_CTRL_RST_VIDEO) | - BIT(OX820_SYS_CTRL_RST_USBHSPHYB) | - BIT(OX820_SYS_CTRL_RST_USBDEV); - - regmap_write(ctx->sys_ctrl, OX820_RST_SET_REGOFFSET, value); - - /* Release reset to cores as per power on defaults */ - regmap_write(ctx->sys_ctrl, OX820_RST_CLR_REGOFFSET, - BIT(OX820_SYS_CTRL_RST_GPIO)); - - /* - * Disable clocks to cores as per power-on defaults - must leave DDR - * related clocks enabled otherwise we'll stop rather abruptly. - */ - value = BIT(OX820_SYS_CTRL_CLK_COPRO) | - BIT(OX820_SYS_CTRL_CLK_DMA) | - BIT(OX820_SYS_CTRL_CLK_CIPHER) | - BIT(OX820_SYS_CTRL_CLK_SD) | - BIT(OX820_SYS_CTRL_CLK_SATA) | - BIT(OX820_SYS_CTRL_CLK_I2S) | - BIT(OX820_SYS_CTRL_CLK_USBHS) | - BIT(OX820_SYS_CTRL_CLK_MAC) | - BIT(OX820_SYS_CTRL_CLK_PCIEA) | - BIT(OX820_SYS_CTRL_CLK_STATIC) | - BIT(OX820_SYS_CTRL_CLK_MACB) | - BIT(OX820_SYS_CTRL_CLK_PCIEB) | - BIT(OX820_SYS_CTRL_CLK_REF600) | - BIT(OX820_SYS_CTRL_CLK_USBDEV); - - regmap_write(ctx->sys_ctrl, OX820_CLK_CLR_REGOFFSET, value); - - /* Enable clocks to cores as per power-on defaults */ - - /* Set sys-control pin mux'ing as per power-on defaults */ - regmap_write(ctx->sys_ctrl, OX820_SECONDARY_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_TERTIARY_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_QUATERNARY_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_DEBUG_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_ALTERNATIVE_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_PULLUP_SEL_REGOFFSET, 0); - - regmap_write(ctx->sys_ctrl, OX820_SEC_SECONDARY_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_SEC_TERTIARY_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_SEC_QUATERNARY_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_SEC_DEBUG_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_SEC_ALTERNATIVE_SEL_REGOFFSET, 0); - regmap_write(ctx->sys_ctrl, OX820_SEC_PULLUP_SEL_REGOFFSET, 0); - - /* - * No need to save any state, as the ROM loader can determine whether - * reset is due to power cycling or programatic action, just hit the - * (self-clearing) CPU reset bit of the block reset register - */ - value = - BIT(OX820_SYS_CTRL_RST_SCU) | - BIT(OX820_SYS_CTRL_RST_ARM0) | - BIT(OX820_SYS_CTRL_RST_ARM1); - - regmap_write(ctx->sys_ctrl, OX820_RST_SET_REGOFFSET, value); - - pr_emerg("Unable to restart system\n"); - return NOTIFY_DONE; -} - -static int ox820_restart_probe(struct platform_device *pdev) -{ - struct oxnas_restart_context *ctx; - struct regmap *sys_ctrl; - struct device *dev = &pdev->dev; - int err = 0; - - sys_ctrl = syscon_node_to_regmap(pdev->dev.of_node); - if (IS_ERR(sys_ctrl)) - return PTR_ERR(sys_ctrl); - - ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); - if (!ctx) - return -ENOMEM; - - ctx->sys_ctrl = sys_ctrl; - ctx->restart_handler.notifier_call = ox820_restart_handle; - ctx->restart_handler.priority = 192; - err = register_restart_handler(&ctx->restart_handler); - if (err) - dev_err(dev, "can't register restart notifier (err=%d)\n", err); - - return err; -} - -static const struct of_device_id ox820_restart_of_match[] = { - { .compatible = "oxsemi,ox820-sys-ctrl" }, - {} -}; - -static struct platform_driver ox820_restart_driver = { - .probe = ox820_restart_probe, - .driver = { - .name = "ox820-chip-reset", - .of_match_table = ox820_restart_of_match, - }, -}; -builtin_platform_driver(ox820_restart_driver);