From patchwork Tue Nov 14 18:07:16 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Otavio Salvador X-Patchwork-Id: 837968 X-Patchwork-Delegate: sbabic@denx.de Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 3ybwVJ09XPz9sNr for ; Wed, 15 Nov 2017 05:08:23 +1100 (AEDT) Received: by lists.denx.de (Postfix, from userid 105) id 973B4C21DDD; Tue, 14 Nov 2017 18:08:05 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 44E97C21DD7; Tue, 14 Nov 2017 18:08:03 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 6E67BC21D88; Tue, 14 Nov 2017 18:07:46 +0000 (UTC) Received: from mail-qt0-f194.google.com (mail-qt0-f194.google.com [209.85.216.194]) by lists.denx.de (Postfix) with ESMTPS id 5D184C21D56 for ; Tue, 14 Nov 2017 18:07:42 +0000 (UTC) Received: by mail-qt0-f194.google.com with SMTP id 1so27432292qtn.3 for ; Tue, 14 Nov 2017 10:07:42 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:organization; bh=Oxj9PJBrS56wEoAcoX3zGqrjjEkF30RLxP1NkmQXdmo=; b=mE/rVqJdlwEg23hdSVJJ1NJ4nW0b8YT93pwSoRZZL+1kesSUVpFJLDBbLDcAcn+WsF SmZhsLFNF44uDwqfB9Rb4U2xq7QqyAwP+HSOxZv+8lxp3vHs+SP37bxLdTkTuL8Evu2k uJXKyhfJu2ULczDen+qk8udK+AhsJNxvWIeU3eij9/Ze52ooORpUX5PgOf/VPW7HvHyV aSb5/l460XaVHAebcpFCK8/7HefSW2CbyFOtTzD/3kknDYWZ6fLCnoPXE/ihThp9ER25 I3HjcIWDtn0556jaOpcwNGVI2Elu6Si/gv7mR4t+Ud8ycQiiyskKGpXqC3xPw796ekIn LHrg== X-Gm-Message-State: AJaThX6dkjT+O14bcINDqOe1YcFpnoGgv8dEtIlAaS9aGaCoso+Y8yAk yaWzg41MImMTnUcbcSNJwZr62w== X-Google-Smtp-Source: AGs4zMYGNbWxAbJObk6hXZET3cE8wRuaCQKk7QLYfpa7EpV2h8HUOGGn7TK1EvexIOT5qRJc/GtuZA== X-Received: by 10.200.47.105 with SMTP id k38mr11067001qta.195.1510682861160; Tue, 14 Nov 2017 10:07:41 -0800 (PST) Received: from localhost.localdomain ([181.220.79.73]) by smtp.gmail.com with ESMTPSA id w6sm13145849qtc.53.2017.11.14.10.07.36 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 14 Nov 2017 10:07:40 -0800 (PST) Received: by localhost.localdomain (sSMTP sendmail emulation); Tue, 14 Nov 2017 16:07:33 -0200 From: Otavio Salvador To: U-Boot Mailing List Date: Tue, 14 Nov 2017 16:07:16 -0200 Message-Id: <20171114180720.3817-2-otavio@ossystems.com.br> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20171114180720.3817-1-otavio@ossystems.com.br> References: <20171114180720.3817-1-otavio@ossystems.com.br> Organization: O.S. Systems Software LTDA. Cc: Marek Vasut , Otavio Salvador , Fabio Estevam , Richard Hu , John Weber Subject: [U-Boot] [PATCH 2/6] pico-imx6ul: Use PARTUUID to specify the rootfs location X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" From: Fabio Berton Currently the rootfs location is passed via mmcblk number and using the UUID method to specify the rootfs location is a better approach working even if mmcblk number for the eMMM changes depending on the kernel versions. Signed-off-by: Fabio Berton Signed-off-by: Otavio Salvador Reviewed-by: Fabio Estevam --- configs/pico-imx6ul_defconfig | 1 + include/configs/pico-imx6ul.h | 6 +++--- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/configs/pico-imx6ul_defconfig b/configs/pico-imx6ul_defconfig index 09b36ccb09..e00f9f34a3 100644 --- a/configs/pico-imx6ul_defconfig +++ b/configs/pico-imx6ul_defconfig @@ -13,6 +13,7 @@ CONFIG_CMD_DFU=y # CONFIG_CMD_FLASH is not set CONFIG_CMD_GPIO=y CONFIG_CMD_MMC=y +CONFIG_CMD_PART=y CONFIG_CMD_USB=y CONFIG_CMD_USB_MASS_STORAGE=y CONFIG_CMD_DHCP=y diff --git a/include/configs/pico-imx6ul.h b/include/configs/pico-imx6ul.h index d4b29e3950..c775c32690 100644 --- a/include/configs/pico-imx6ul.h +++ b/include/configs/pico-imx6ul.h @@ -61,14 +61,15 @@ "fdt_addr=0x83000000\0" \ "mmcdev="__stringify(CONFIG_SYS_MMC_ENV_DEV)"\0" \ "mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \ - "mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \ "mmcautodetect=yes\0" \ CONFIG_DFU_ENV_SETTINGS \ + "finduuid=part uuid mmc 0:2 uuid\0" \ "mmcargs=setenv bootargs console=${console},${baudrate} " \ - "root=${mmcroot}\0" \ + "root=PARTUUID=${uuid} rootwait rw\0" \ "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \ "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \ "mmcboot=echo Booting from mmc ...; " \ + "run finduuid; " \ "run mmcargs; " \ "if run loadfdt; then " \ "bootz ${loadaddr} - ${fdt_addr}; " \ @@ -147,6 +148,5 @@ #define CONFIG_SYS_MMC_ENV_DEV 0 #define CONFIG_SYS_MMC_ENV_PART 0 -#define CONFIG_MMCROOT "/dev/mmcblk0p2" #endif /* __PICO_IMX6UL_CONFIG_H */