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[81.169.180.215]) by mx.google.com with ESMTP id a22si1106235eda.495.2018.03.26.07.29.27; Mon, 26 Mar 2018 07:29:27 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 81.169.180.215 as permitted sender) client-ip=81.169.180.215; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org header.s=google header.b=CMJlZG6v; spf=pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 81.169.180.215 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: by lists.denx.de (Postfix, from userid 105) id 3849CC21F38; Mon, 26 Mar 2018 14:28:31 +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, T_DKIM_INVALID 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 54F14C21F4A; Mon, 26 Mar 2018 14:28:07 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 8C187C21F58; Mon, 26 Mar 2018 14:27:44 +0000 (UTC) Received: from mail-wm0-f65.google.com (mail-wm0-f65.google.com [74.125.82.65]) by lists.denx.de (Postfix) with ESMTPS id B485DC21F05 for ; Mon, 26 Mar 2018 14:27:40 +0000 (UTC) Received: by mail-wm0-f65.google.com with SMTP id l9so15862246wmh.2 for ; Mon, 26 Mar 2018 07:27:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=eU+s2/Pf87pQxU+vxjyUhYogcC4cYGfV16nIAxKWcRQ=; b=CMJlZG6v47ElQVR1yZEWvFsTidcQF29EtnV/AjAMHMCCvV0/7MN27H+owfVjtkr9+v rpw8utrHN8jvUTztzd+/69cG1qCfeFatGahqZ+0p8KLhrVVbL5nKdoWD2C77ZiJ2tvb5 WBD4ZHqCWxWP3F+eIst31PgSwU1/kOtI5yy8Q= 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; bh=eU+s2/Pf87pQxU+vxjyUhYogcC4cYGfV16nIAxKWcRQ=; b=fgwW71y0UodmQgxUzAhjauSH8O6Jv8p6OhRzuRFXb0Amg4tU15dFVF2PebNTCw1Geu 6FOQ2+169f9hYSoRIsbbREY8t8zt8ia+HIncWUqtE1n6ZIDsrzfBxfRB+CVhnpi64JPr 3Yxag3Gv+KKe5kpe5wCjJmivTfhaEr6+xh0i2pjMFY51ieqi6GGbE0KIjVPqlRaiN0T+ gww1w9rsYm/Vi4I3YmfaSFepWalDMhXwRGP711tBgpkVSPpp3RysNWWdUjpSHF+JtksP KD6vg6o/CFQ+GOyAZRBwij9mGcI7ePkb9m1qWZhJg6PAzo6LF8ywEvRaUAJ/VsXqbOMJ mffg== X-Gm-Message-State: AElRT7EMNOH3jPq9Z0+WdTVNQ6zqU9P2P51cCrdM+7+JpQfZfd30YURS 31RRM2E7kMdZl/po+VSskGEskQ4piuk= X-Received: by 10.80.146.97 with SMTP id j30mr35424997eda.134.1522074460030; Mon, 26 Mar 2018 07:27:40 -0700 (PDT) Received: from localhost.localdomain ([109.255.42.2]) by smtp.gmail.com with ESMTPSA id a88sm10338634edf.64.2018.03.26.07.27.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 26 Mar 2018 07:27:39 -0700 (PDT) From: Bryan O'Donoghue To: u-boot@lists.denx.de, fabio.estevam@nxp.com Date: Mon, 26 Mar 2018 15:27:34 +0100 Message-Id: <1522074454-16643-4-git-send-email-bryan.odonoghue@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1522074454-16643-1-git-send-email-bryan.odonoghue@linaro.org> References: <1522074454-16643-1-git-send-email-bryan.odonoghue@linaro.org> Cc: rui.silva@linaro.org Subject: [U-Boot] [PATCH v3 3/3] warp7: Set u-boot serial# based on OTP value 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" u-boot has a standard "serial#" environment variable that is suitable for storing the iSerial number we will supply via the USB device descriptor. serial# is automatically picked up by the disk subsystem in u-boot - thus providing a handy unique identifier in /dev/disk/by-id as detailed below. Storing the hardware serial identifier in serial# means we can change the serial# if we want before USB enumeration - thus making iSerial automatic via OTP but overridable if necessary. This patch reads the defined OTP fuse and sets environment variable "serial#" to the value read. With this patch in place the USB mass storage device will appear in /dev/disk/by-id with a unique name based on the OTP value. For example /dev/disk/by-id/usb-Linux_UMS_disk_0_WaRP7-0xf42400d3000001d4-0:0 Signed-off-by: Bryan O'Donoghue Cc: Fabio Estevam Cc: Rui Miguel Silva Cc: Ryan Harkin Reviewed-by: Fabio Estevam --- board/warp7/warp7.c | 14 ++++++++++++++ include/configs/warp7.h | 3 +++ 2 files changed, 17 insertions(+) diff --git a/board/warp7/warp7.c b/board/warp7/warp7.c index d422d63..327f656 100644 --- a/board/warp7/warp7.c +++ b/board/warp7/warp7.c @@ -23,6 +23,8 @@ #include #include #include "../freescale/common/pfuze.h" +#include +#include DECLARE_GLOBAL_DATA_PTR; @@ -186,6 +188,10 @@ int board_usb_phy_mode(int port) int board_late_init(void) { struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR; +#ifdef CONFIG_SERIAL_TAG + struct tag_serialnr serialnr; + char serial_string[0x20]; +#endif imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads)); @@ -197,5 +203,13 @@ int board_late_init(void) */ clrsetbits_le16(&wdog->wcr, 0, 0x10); +#ifdef CONFIG_SERIAL_TAG + /* Set serial# standard environment variable based on OTP settings */ + get_board_serial(&serialnr); + snprintf(serial_string, sizeof(serial_string), "WaRP7-0x%08x%08x", + serialnr.low, serialnr.high); + env_set("serial#", serial_string); +#endif + return 0; } diff --git a/include/configs/warp7.h b/include/configs/warp7.h index fe96988..0c3b605 100644 --- a/include/configs/warp7.h +++ b/include/configs/warp7.h @@ -24,6 +24,9 @@ #define CONFIG_SYS_FSL_ESDHC_HAS_DDR_MODE #define CONFIG_SYS_MMC_IMG_LOAD_PART 1 +/* Switch on SERIAL_TAG */ +#define CONFIG_SERIAL_TAG + #define CONFIG_DFU_ENV_SETTINGS \ "dfu_alt_info=boot raw 0x2 0x400 mmcpart 1\0" \