{"id":2226046,"url":"http://patchwork.ozlabs.org/api/patches/2226046/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/patch/20260422-serial-v1-1-1f246885bd70@oss.qualcomm.com/","project":{"id":18,"url":"http://patchwork.ozlabs.org/api/projects/18/?format=json","name":"U-Boot","link_name":"uboot","list_id":"u-boot.lists.denx.de","list_email":"u-boot@lists.denx.de","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260422-serial-v1-1-1f246885bd70@oss.qualcomm.com>","list_archive_url":null,"date":"2026-04-22T04:11:18","name":"arch: snapdragon: Improve serial number detection using SMEM interface","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"177c6b3193febe81577e8abb11b9537419de3901","submitter":{"id":90810,"url":"http://patchwork.ozlabs.org/api/people/90810/?format=json","name":"Balaji Selvanathan","email":"balaji.selvanathan@oss.qualcomm.com"},"delegate":{"id":151538,"url":"http://patchwork.ozlabs.org/api/users/151538/?format=json","username":"kcxt","first_name":"Casey","last_name":"Connolly","email":"casey.connolly@linaro.org"},"mbox":"http://patchwork.ozlabs.org/project/uboot/patch/20260422-serial-v1-1-1f246885bd70@oss.qualcomm.com/mbox/","series":[{"id":500918,"url":"http://patchwork.ozlabs.org/api/series/500918/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/list/?series=500918","date":"2026-04-22T04:11:18","name":"arch: snapdragon: Improve serial number detection using SMEM interface","version":1,"mbox":"http://patchwork.ozlabs.org/series/500918/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2226046/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2226046/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=QMlRZAvD;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=Q2dyN9uJ;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=85.214.62.61; helo=phobos.denx.de;\n envelope-from=u-boot-bounces@lists.denx.de; receiver=patchwork.ozlabs.org)","phobos.denx.de;\n dmarc=none (p=none dis=none) header.from=oss.qualcomm.com","phobos.denx.de;\n spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de","phobos.denx.de;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com\n header.b=\"QMlRZAvD\";\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.b=\"Q2dyN9uJ\";\n\tdkim-atps=neutral","phobos.denx.de; dmarc=none (p=none dis=none)\n header.from=oss.qualcomm.com","phobos.denx.de; spf=pass\n smtp.mailfrom=balaji.selvanathan@oss.qualcomm.com"],"Received":["from phobos.denx.de (phobos.denx.de [85.214.62.61])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g0m4j3ffbz1yGs\n\tfor ; Wed, 22 Apr 2026 14:11:33 +1000 (AEST)","from h2850616.stratoserver.net (localhost [IPv6:::1])\n\tby phobos.denx.de (Postfix) with ESMTP id A9F9D83936;\n\tWed, 22 Apr 2026 06:11:29 +0200 (CEST)","by phobos.denx.de (Postfix, from userid 109)\n id EE66483BC8; Wed, 22 Apr 2026 06:11:28 +0200 (CEST)","from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com\n [205.220.180.131])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))\n (No client certificate requested)\n by phobos.denx.de (Postfix) with ESMTPS id 759338352B\n for ; Wed, 22 Apr 2026 06:11:26 +0200 (CEST)","from pps.filterd (m0279871.ppops.net [127.0.0.1])\n by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id\n 63LIaEhQ2936073\n for ; Wed, 22 Apr 2026 04:11:25 GMT","from mail-pl1-f198.google.com (mail-pl1-f198.google.com\n [209.85.214.198])\n by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4dpenk9jmk-1\n (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT)\n for ; Wed, 22 Apr 2026 04:11:24 +0000 (GMT)","by mail-pl1-f198.google.com with SMTP id\n d9443c01a7336-2b24cd2e2b3so46864045ad.0\n for ; Tue, 21 Apr 2026 21:11:24 -0700 (PDT)","from hu-bselvana-blr.qualcomm.com\n (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com. 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charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260422-serial-v1-1-1f246885bd70@oss.qualcomm.com>","X-B4-Tracking":"v=1; b=H4sIAGVK6GkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE\n vPSU3UzU4B8JSMDIzMDEyMjXZD6xBxdS2MjY8MkY6Mk8yRDJaDigqLUtMwKsEHRsbW1AOPQjK9\n YAAAA","X-Change-ID":"20260422-serial-93231b32b7b1","To":"Sumit Garg , u-boot-qcom@groups.io,\n u-boot@lists.denx.de","Cc":"Tom Rini , Casey Connolly ,\n Neil Armstrong ,\n Sughosh Ganu ,\n Ilias Apalodimas ,\n George Chan ,\n Balaji Selvanathan ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=ed25519-sha256; t=1776831079; l=2823;\n i=balaji.selvanathan@oss.qualcomm.com; s=20260213; h=from:subject:message-id;\n bh=0lOy7NgBVY0VkqJzzGvWZSftethWiAvT2ufGxv/vtcA=;\n b=hE7La6Nz/m9LdmQTdyGpBltzp2sxIFk45HhCX1vZ6PA53jO1TDhiEoPWrJM/q/dp0KZp1U6QV\n DT6KIg0NLMFCAtU2MUhtIhpsNdnAGAmQlBkwTFqMJzXZg4BqG99HR6h","X-Developer-Key":"i=balaji.selvanathan@oss.qualcomm.com; a=ed25519;\n pk=CDpYiUU3SH7KGEtsBvY2tBGPiWfMxqWJF0p2LftOfnc=","X-Proofpoint-GUID":"lhcElJzmZb8asKkCzrlTmmnK62PUPsuY","X-Authority-Analysis":"v=2.4 cv=SONykuvH c=1 sm=1 tr=0 ts=69e84a6c cx=c_pps\n a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17\n a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22\n a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=GqcJuMMKbsYl-prE61YA:9 a=QEXdDO2ut3YA:10\n a=GvdueXVYPmCkWapjIL-Q:22","X-Proofpoint-ORIG-GUID":"lhcElJzmZb8asKkCzrlTmmnK62PUPsuY","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDIyMDAzOSBTYWx0ZWRfX0eHum/jJQrvg\n oW88r0Us4pdXHE+/T/+15CTk2qx2vbFcHvmw9c8Zq4t/g+O1O2YGGZ8IyFeAYRGGa71KVxMofMS\n A1A6m9mwvX1PeOys+O0/qHODJ9HgH/8TvxDplIGj9zvxbspQTTsNMhOGSNyuB+/iP1i1PX9gjXP\n v0z46SPFTCfrdU96riF0zZpYBqqUU5eHmC0jE7dhS2F8W4fnPf6cZpwIj1V2aEDwwaUw6pgBQGi\n Ib4A/xwkrEYAcy4n4O1I/nbkE3UqV4TZb2RwmolWnChBdVEThdyaZa3NFeSmZd59HIcn18TUeI+\n MxAAUEiVenTYP95lThErLmSCZQdD8HmiJ37+fcbAExV10ur26oeGWBLnb8cmio9epZRSHhShP8Q\n Mtrqi+Nie7URiHDSNMjaTYmhDJy/HtfVjQt5gvAHlrK2JTWlA7Ph+cnXzWipwjWqPthWzoRJ2V5\n NneV0IahA96ELgBqmQA==","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-21_03,2026-04-21_02,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n bulkscore=0 priorityscore=1501 adultscore=0 impostorscore=0 malwarescore=0\n spamscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 phishscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604220039","X-BeenThere":"u-boot@lists.denx.de","X-Mailman-Version":"2.1.39","Precedence":"list","List-Id":"U-Boot discussion ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"u-boot-bounces@lists.denx.de","Sender":"\"U-Boot\" ","X-Virus-Scanned":"clamav-milter 0.103.8 at phobos.denx.de","X-Virus-Status":"Clean"},"content":"Enhance serial number detection by prioritizing SMEM-based retrieval\nover bootargs parsing for better reliability and consistency across\nQualcomm Snapdragon platforms.\n\nAdd board_serial_num() function to retrieve serial number directly\nfrom SMEM using the socinfo interface. This provides access to the\nhardware-stored serial number in shared memory, eliminating the\ndependency on kernel command line parsing.\n\nThis patch depends on the following patch [1], which adds the\nsocinfo header file.\n\n[1] https://lore.kernel.org/all/20260106122134.2047864-3-aswin.murugan@oss.qualcomm.com/\n\nSigned-off-by: Balaji Selvanathan \n---\n arch/arm/mach-snapdragon/board.c | 31 +++++++++++++++++++++++++++++++\n arch/arm/mach-snapdragon/qcom-priv.h | 2 ++\n 2 files changed, 33 insertions(+)\n\n\n---\nbase-commit: 052988aa29bfd506d7ce207fbb3f5374a5dbecbb\nchange-id: 20260422-serial-93231b32b7b1\n\nBest regards,","diff":"diff --git a/arch/arm/mach-snapdragon/board.c b/arch/arm/mach-snapdragon/board.c\nindex 5fb3240acc5..2f058038b25 100644\n--- a/arch/arm/mach-snapdragon/board.c\n+++ b/arch/arm/mach-snapdragon/board.c\n@@ -32,6 +32,8 @@\n #include \n #include \n #include \n+#include \n+#include \n \n #include \"qcom-priv.h\"\n \n@@ -363,10 +365,39 @@ static const char *get_cmdline(void)\n \treturn cmdline;\n }\n \n+/**\n+ * board_serial_num() - Retrieves the board serial number from SMEM\n+ * @serial_num_ptr: Pointer to store the serial number\n+ *\n+ * Return: 0 on success, negative error code on failure.\n+ */\n+int board_serial_num(u32 *serial_num_ptr)\n+{\n+\tstruct socinfo *soc_info_ptr;\n+\tstruct udevice *dev_ptr;\n+\tsize_t total_size;\n+\n+\tif (uclass_get_device(UCLASS_SMEM, 0, &dev_ptr) != 0)\n+\t\treturn -ENODEV;\n+\n+\tsoc_info_ptr = smem_get(dev_ptr, 0, SMEM_HW_SW_BUILD_ID, &total_size);\n+\tif (!soc_info_ptr)\n+\t\treturn -ENODATA;\n+\n+\t*serial_num_ptr = soc_info_ptr->serial_num;\n+\treturn 0;\n+}\n+\n void qcom_set_serialno(void)\n {\n \tconst char *cmdline = get_cmdline();\n \tchar serial[32];\n+\tu32 serial_num;\n+\n+\tif (board_serial_num(&serial_num) == 0) {\n+\t\tenv_set_hex(\"serial#\", serial_num);\n+\t\treturn;\n+\t}\n \n \tif (!cmdline) {\n \t\tlog_debug(\"Failed to get bootargs\\n\");\ndiff --git a/arch/arm/mach-snapdragon/qcom-priv.h b/arch/arm/mach-snapdragon/qcom-priv.h\nindex b8bf574e8bb..3da841b8cda 100644\n--- a/arch/arm/mach-snapdragon/qcom-priv.h\n+++ b/arch/arm/mach-snapdragon/qcom-priv.h\n@@ -17,6 +17,8 @@ enum qcom_boot_source {\n \n extern enum qcom_boot_source qcom_boot_source;\n \n+int board_serial_num(u32 *serial_num_ptr);\n+\n #if IS_ENABLED(CONFIG_EFI_HAVE_CAPSULE_SUPPORT)\n void qcom_configure_capsule_updates(void);\n #else\n","prefixes":[]}