From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 25 Sep 2025 14:00:22 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1v1ke6-000vt4-21 for lore@lore.pengutronix.de; Thu, 25 Sep 2025 14:00:22 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1v1ke5-0005Fm-AQ for lore@pengutronix.de; Thu, 25 Sep 2025 14:00:22 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=C8Klxfy56pkGS8LB+bVNnO+6JAdAIINx+hwochVyxtM=; b=mlWMw55J1ryUecS2smIa7o9Z9w OKjO9UzUOOLL4QzZGZoonA/h/cIsBIZXZToSqQLrYRzNsArB1mfQB5FNtg4M3s1r3DR6AqiS2kZHw yhNDB32i0ZyOlKpJLCfq2JDiszz5Wp6C5klrgmnvefEzTXIK1JgN6V1FQZ0n7YGTOtYE7qz54jb8V Ls64688wf3yd7u5c3PV8KRLya7/ySLkd7082WlhQC4ChU3G+1mlnICjcJAKCjVDtZ4LWlW6YH4/vk 7wl93cflwDw3OWrdOohMWzfegHMfbtOpr6jk4xfoKPkDS65mPENmo8fSNNY50xBfKP5x5zLGuOevI 4qx98Q4A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v1kdO-00000008k1i-0Fme; Thu, 25 Sep 2025 11:59:38 +0000 Received: from cczrelay02.in2p3.fr ([134.158.66.142]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v1kdH-00000008jqg-00kt for barebox@lists.infradead.org; Thu, 25 Sep 2025 11:59:35 +0000 Received: from [127.0.1.1] (clrelecpo09w.in2p3.fr [134.158.124.135]) (authenticated bits=0) by cczrelay02.in2p3.fr (8.14.4/8.14.4) with ESMTP id 58PBxEl1016594 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Thu, 25 Sep 2025 13:59:25 +0200 From: David Picard Date: Thu, 25 Sep 2025 13:59:17 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250925-boards-enclustra-sa2-add-support-v2-10-6820ad6c6256@clermont.in2p3.fr> References: <20250925-boards-enclustra-sa2-add-support-v2-0-6820ad6c6256@clermont.in2p3.fr> In-Reply-To: <20250925-boards-enclustra-sa2-add-support-v2-0-6820ad6c6256@clermont.in2p3.fr> To: Sascha Hauer , BAREBOX Cc: David Picard X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1758801565; l=3442; i=david.picard@clermont.in2p3.fr; s=20250917; h=from:subject:message-id; bh=PD6MRrweWUM9yC0aE+BX+Stf79eHlYWVOpDr7AcUeRk=; b=TfjhGlwQPEToZIKK9oqzSZwkE19G9C3fwKL0S0bX/hP95KDpjq3+XlPTYgi2oywERUgReZXa+ H+GgxKhLYa5Dpee/mC9SnzwJXRH/gFptVWElUmbZ0QSpnr57Z917u5V X-Developer-Key: i=david.picard@clermont.in2p3.fr; a=ed25519; pk=Ew2hyxWdBXm7qaK2tHrk3KcOlOjoh3+irqJPSHtq/PU= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250925_045931_320846_482FCBC5 X-CRM114-Status: GOOD ( 14.50 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.1 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 10/10] boards: enclustra-sa2: read S/N from EEPROM X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Read the SoM serial number from the EEPROM and set it in the Barebox environment. The serial number can be checked: - in Barebox, printenv global.serial_number - in Linux, cat /proc/device-tree/serial-number Signed-off-by: David Picard --- arch/arm/boards/enclustra-sa2/board.c | 38 ++++++++++++++++++++++++++ arch/arm/dts/socfpga_cyclone5_mercury_sa2.dtsi | 12 ++++++++ 2 files changed, 50 insertions(+) diff --git a/arch/arm/boards/enclustra-sa2/board.c b/arch/arm/boards/enclustra-sa2/board.c index d2e539cbf9460adddc158885473f4ef0004dc284..03539132654716460cedc2a6edcaf13935dea22c 100644 --- a/arch/arm/boards/enclustra-sa2/board.c +++ b/arch/arm/boards/enclustra-sa2/board.c @@ -19,6 +19,7 @@ /** Enclustra's MAC address vendor prefix is 20:B0:F7 */ #define ENCLUSTRA_PREFIX (0x20b0f7) #define MAC_ADDR_NUM_BYTES (6) +#define SERIAL_NUMBER_NUM_BYTES (4) /* * Ethernet PHY: Microchip/Micrel KSZ9031RNX @@ -89,6 +90,42 @@ static void set_mac_addr(void) eth_register_ethaddr(1, enclustra_ethaddr_fallback2); } +/* + * Read the SoM serial number via the atsha204a driver. + */ +static void set_ser_num(void) +{ + u8 *data = NULL; + uint32_t ser_num = 0; + char ser_num_str[12]; + static const char * const aliases[] = { "som-sernum" }; + struct device_node *np, *root; + + root = of_get_root_node(); + + for (int i = 0; i < ARRAY_SIZE(aliases); i++) { + const char *alias = aliases[i]; + + np = of_find_node_by_alias(root, alias); + if (!np) { + pr_warn("%s() >> ERROR: can't find alias %s\n", __func__, alias); + continue; + } + data = nvmem_cell_get_and_read(np, "serial-number", + SERIAL_NUMBER_NUM_BYTES); + if (IS_ERR(data)) { + pr_warn("%s() >> ERROR: can't read NVMEM cell\n", __func__); + data = NULL; + } + } + if (!data) + return; + + ser_num = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3]; + sprintf(ser_num_str, "%d", ser_num); + barebox_set_serial_number(ser_num_str); +} + static int socfpga_init(void) { if (!of_machine_is_compatible("enclustra,mercury-sa2")) @@ -99,6 +136,7 @@ static int socfpga_init(void) phy_fixup); set_mac_addr(); + set_ser_num(); #ifdef CONFIG_MACH_SOCFPGA_ENCLUSTRA_SA2_SI5338 /* configure clock generator on the Enclustra ST1 baseboard: */ diff --git a/arch/arm/dts/socfpga_cyclone5_mercury_sa2.dtsi b/arch/arm/dts/socfpga_cyclone5_mercury_sa2.dtsi index 78ba8008af5d60f10d6a64b0f05e97bf2381079c..ade6f4f6df3a329ee404b2b7a70fcd00c8815fdd 100644 --- a/arch/arm/dts/socfpga_cyclone5_mercury_sa2.dtsi +++ b/arch/arm/dts/socfpga_cyclone5_mercury_sa2.dtsi @@ -24,6 +24,7 @@ chosen { aliases { ethernet0 = &gmac1; + som-sernum = "/serial-number"; }; /* Adjusted the i2c labels to use generic base-board dtsi files for @@ -46,6 +47,11 @@ memory { device_type = "memory"; reg = <0x0 0x80000000>; /* 2GB */ }; + + serial-number { + nvmem-cells = <&ser_num>; + nvmem-cell-names = "serial-number"; + }; }; &osc1 { @@ -82,6 +88,12 @@ nvmem-layout { #address-cells = <1>; #size-cells = <1>; + ser_num: serial-number@0 { + reg = <0x00 0x4>; + nvmem-cell-cells = <1>; + nvmem-cell-names = "serial-number"; + }; + mac_address_0: mac@10 { compatible = "mac-base"; reg = <0x10 0x6>; -- 2.43.0