From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26147C47083 for ; Wed, 2 Jun 2021 17:10:18 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4D95E61CA7 for ; Wed, 2 Jun 2021 17:10:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D95E61CA7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nic.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 58D9982F45; Wed, 2 Jun 2021 19:10:13 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; secure) header.d=nic.cz header.i=@nic.cz header.b="xI7Q4E5d"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 2261A82F5A; Wed, 2 Jun 2021 19:10:11 +0200 (CEST) Received: from mail.nic.cz (mail.nic.cz [IPv6:2001:1488:800:400::400]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 0D8BA82F44 for ; Wed, 2 Jun 2021 19:10:05 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=marek.behun@nic.cz Received: from dellmb.labs.office.nic.cz (unknown [IPv6:2001:1488:fffe:6:8747:7254:5571:3010]) by mail.nic.cz (Postfix) with ESMTPSA id 8D4E0140A8B; Wed, 2 Jun 2021 19:10:04 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1622653804; bh=U6MDA7e8GJkGZxFrqWjHmtKaNXZg5xV1nXsx8numZjw=; h=From:To:Date; b=xI7Q4E5duHqKhfKcOFVflFU7dqLUItaNd6HA24Fn6CpE4HLi4E1umwBepz9OnxI8g iCKWT/1Z0TGqiw9YJkNMvqN7zlDawuV8+bBXtw3VbAzuMrOghKLkIyWjsei8K2BGLX lXHyYfW9HKSF6dyC68ZEhKToUodawxufmfGozvD0= From: =?UTF-8?q?Marek=20Beh=C3=BAn?= To: Stefan Roese , u-boot@lists.denx.de Cc: =?UTF-8?q?Pali=20Roh=C3=A1r?= , =?UTF-8?q?Marek=20Beh=C3=BAn?= Subject: [PATCH u-boot-marvell 2/7] arm: mvebu: turris_mox: add support for board rescue mode Date: Wed, 2 Jun 2021 19:09:56 +0200 Message-Id: <20210602171001.29614-3-marek.behun@nic.cz> X-Mailer: git-send-email 2.26.3 In-Reply-To: <20210602171001.29614-1-marek.behun@nic.cz> References: <20210602171001.29614-1-marek.behun@nic.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.4 at phobos.denx.de X-Virus-Status: Clean Add necessary config options and board code to support board factory reset / rescue mode on Turris MOX. In order to also support invoking rescue mode from U-Boot console, without having to press the factory reset button, put the rescue command into `bootcmd_rescue` default environment variable. When factory reset button is pressed, invoke rescue mode via distroboot by setting `boot_targets` to `rescue`. Rescue boot from console can be invoked by running run bootcmd_rescue Signed-off-by: Marek Behún --- board/CZ.NIC/turris_mox/turris_mox.c | 71 ++++++++++++++++++++++++++++ configs/turris_mox_defconfig | 6 +++ include/configs/turris_mox.h | 9 ++++ 3 files changed, 86 insertions(+) diff --git a/board/CZ.NIC/turris_mox/turris_mox.c b/board/CZ.NIC/turris_mox/turris_mox.c index 15cbf92550..a78f33661e 100644 --- a/board/CZ.NIC/turris_mox/turris_mox.c +++ b/board/CZ.NIC/turris_mox/turris_mox.c @@ -10,11 +10,13 @@ #include #include #include +#include #include #include #include #include #include +#include #include #include #include @@ -44,6 +46,8 @@ #define SFP_GPIO_PATH "/soc/internal-regs@d0000000/spi@10600/moxtet@1/gpio@0" #define PCIE_PATH "/soc/pcie@d0070000" #define SFP_PATH "/sfp" +#define LED_PATH "/leds/led" +#define BUTTON_PATH "/gpio-keys/reset" DECLARE_GLOBAL_DATA_PTR; @@ -373,6 +377,71 @@ int misc_init_r(void) return 0; } +static bool read_reset_button(void) +{ + struct udevice *button, *led; + int i; + + if (device_get_global_by_ofnode(ofnode_path(BUTTON_PATH), &button)) { + printf("Cannot find reset button!\n"); + return false; + } + + if (device_get_global_by_ofnode(ofnode_path(LED_PATH), &led)) { + printf("Cannot find status LED!\n"); + return false; + } + + led_set_state(led, LEDST_ON); + + for (i = 0; i < 21; ++i) { + if (button_get_state(button) != BUTTON_ON) + return false; + if (i < 20) + mdelay(50); + } + + led_set_state(led, LEDST_OFF); + + return true; +} + +static void handle_reset_button(void) +{ + if (read_reset_button()) { + const char * const vars[3] = { + "bootcmd", + "bootcmd_rescue", + "distro_bootcmd", + }; + + /* + * Set the above envs to their default values, in case the user + * managed to break them. + */ + env_set_default_vars(3, (char * const *)vars, 0); + + /* Ensure bootcmd_rescue is used by distroboot */ + env_set("boot_targets", "rescue"); + + printf("RESET button was pressed, overwriting boot_targets!\n"); + } else { + /* + * In case the user somehow managed to save environment with + * boot_targets=rescue, reset boot_targets to default value. + * This could happen in subsequent commands if bootcmd_rescue + * failed. + */ + if (!strcmp(env_get("boot_targets"), "rescue")) { + const char * const vars[1] = { + "boot_targets", + }; + + env_set_default_vars(1, (char * const *)vars, 0); + } + } +} + static void mox_print_info(void) { int ret, board_version, ram_size; @@ -543,6 +612,8 @@ int last_stage_init(void) printf("\n"); + handle_reset_button(); + return 0; } diff --git a/configs/turris_mox_defconfig b/configs/turris_mox_defconfig index 75524babbc..d6d37a3d7d 100644 --- a/configs/turris_mox_defconfig +++ b/configs/turris_mox_defconfig @@ -23,10 +23,14 @@ CONFIG_SYS_CONSOLE_INFO_QUIET=y # CONFIG_DISPLAY_BOARDINFO is not set CONFIG_ARCH_EARLY_INIT_R=y CONFIG_MISC_INIT_R=y +CONFIG_BUTTON=y +CONFIG_BUTTON_GPIO=y +CONFIG_CMD_BUTTON=y CONFIG_CMD_CLK=y # CONFIG_CMD_FLASH is not set CONFIG_CMD_GPIO=y CONFIG_CMD_I2C=y +CONFIG_CMD_LED=y CONFIG_CMD_MMC=y CONFIG_CMD_PCI=y CONFIG_CMD_SPI=y @@ -46,6 +50,8 @@ CONFIG_CLK=y CONFIG_CLK_MVEBU=y # CONFIG_MVEBU_GPIO is not set CONFIG_DM_I2C=y +CONFIG_LED=y +CONFIG_LED_GPIO=y CONFIG_MISC=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_SDMA=y diff --git a/include/configs/turris_mox.h b/include/configs/turris_mox.h index 51445ec60a..6b2b6b3bd4 100644 --- a/include/configs/turris_mox.h +++ b/include/configs/turris_mox.h @@ -75,12 +75,21 @@ #include +#define TURRIS_MOX_BOOTCMD_RESCUE \ + "setenv bootargs \"console=ttyMV0,115200 " \ + "earlycon=ar3700_uart,0xd0012000\" && " \ + "sf probe && " \ + "sf read ${kernel_addr_r} 0x190000 && " \ + "lzmadec ${kernel_addr_r} ${ramdisk_addr_r} && " \ + "bootm ${ramdisk_addr_r}" + #define CONFIG_EXTRA_ENV_SETTINGS \ "scriptaddr=0x4d00000\0" \ "pxefile_addr_r=0x4e00000\0" \ "fdt_addr_r=0x4f00000\0" \ "kernel_addr_r=0x5000000\0" \ "ramdisk_addr_r=0x8000000\0" \ + "bootcmd_rescue=" TURRIS_MOX_BOOTCMD_RESCUE "\0" \ BOOTENV #endif /* _CONFIG_TURRIS_MOX_H */ -- 2.26.3