{"id":2197808,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2197808/?format=json","project":{"id":18,"url":"http://patchwork.ozlabs.org/api/1.0/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},"msgid":"<20260218-lpuart-fix-rxfe-offset-v1-2-86a78b224f13@armadeus.com>","date":"2026-02-18T14:59:19","name":"[2/2] serial: lpuart: handle Overrun flag","commit_ref":null,"pull_url":null,"state":"changes-requested","archived":false,"hash":"181bee80656514d275be300db05b2723f57eafe9","submitter":{"id":47919,"url":"http://patchwork.ozlabs.org/api/1.0/people/47919/?format=json","name":"Sébastien Szymanski","email":"sebastien.szymanski@armadeus.com"},"delegate":{"id":151988,"url":"http://patchwork.ozlabs.org/api/1.0/users/151988/?format=json","username":"festevam","first_name":"Fabio","last_name":"Estevam","email":"festevam@gmail.com"},"mbox":"http://patchwork.ozlabs.org/project/uboot/patch/20260218-lpuart-fix-rxfe-offset-v1-2-86a78b224f13@armadeus.com/mbox/","series":[{"id":492566,"url":"http://patchwork.ozlabs.org/api/1.0/series/492566/?format=json","date":"2026-02-18T14:59:17","name":"serial: lpuart: fix RXFE filed offset and handle Overrun flag","version":1,"mbox":"http://patchwork.ozlabs.org/series/492566/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2197808/checks/","tags":{},"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=armadeus.com header.i=@armadeus.com header.a=rsa-sha256\n header.s=ovhmo103079-selector1 header.b=L00mYFCq;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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charset=\"utf-8\"","Content-Transfer-Encoding":"8bit","Message-Id":"<20260218-lpuart-fix-rxfe-offset-v1-2-86a78b224f13@armadeus.com>","References":"<20260218-lpuart-fix-rxfe-offset-v1-0-86a78b224f13@armadeus.com>","In-Reply-To":"<20260218-lpuart-fix-rxfe-offset-v1-0-86a78b224f13@armadeus.com>","To":"u-boot@lists.denx.de","Cc":"Tom Rini , Peng Fan ,\n Andrew Goodbody ,\n Kory Maincent ,\n Julien Boibessot , =?utf-8?q?S=C3=A9bastien?=\n\t=?utf-8?q?_Szymanski?= ","X-Mailer":"b4 0.14.3","x-ovh-tracer-id":"15265232415330326217","X-VR-SPAMSTATE":"OK","X-VR-SPAMSCORE":"-100","X-VR-SPAMCAUSE":"\n 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","DKIM-Signature":"a=rsa-sha256; bh=XLBcE69QgulgZeJPg45m/GWR90yIvjwGuO3jd7zFZ44=;\n c=relaxed/relaxed; d=armadeus.com; h=From;\n s=ovhmo103079-selector1; t=1771426777; v=1;\n b=L00mYFCq6q1fJgIVnzVQScaaTaJHCutnbgr5wFYw26iSuEYQFoEiGQldeht+uea/2e0cKhtf\n aEX1qepOavRC8IoUB8LrCdUJGXLc0L5dsk0GkVQ6pd9Enywdhsy7c+vXwoM7w9Y4cz+z+dj4Gwg\n 8R8hx7fe+7QXqa98HCPZFOmPTC3KELCsNGHFK/j9G6G9Tw1pNi2T0x0Xiho48OKKAeZjV+jDawR\n If9Fnw15iJiEtbeFE/Ohgugp58K0lvP6Tlfg5SvmatS8QeTvCotjeBSRx5f5N0r1f1hQ/DN5hZp\n W0ABsl05ngWqPW0iFnzDzhTRpEvIk+imHYDMh046RXDhQ==","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":"The receive FIFO may overflow if data are sent while U-Boot is still\nbooting. In that case, the Overrun flag (STAT[19]) is set and no\nadditional data is stored in the receive FIFO and the user cannot get\naccess to the U-Boot prompt.\n\nFix this by clearing the Overrun flag in _lpuart32_serial_tstc()\n\nSigned-off-by: Sébastien Szymanski \n---\n drivers/serial/serial_lpuart.c | 7 +++++--\n 1 file changed, 5 insertions(+), 2 deletions(-)","diff":"diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c\nindex bbce59443388..0728feccd131 100644\n--- a/drivers/serial/serial_lpuart.c\n+++ b/drivers/serial/serial_lpuart.c\n@@ -367,10 +367,13 @@ static int _lpuart32_serial_putc(struct lpuart_serial_plat *plat,\n static int _lpuart32_serial_tstc(struct lpuart_serial_plat *plat)\n {\n \tstruct lpuart_fsl_reg32 *base = plat->reg;\n-\tu32 water;\n+\tu32 water, stat;\n \n-\tlpuart_read32(plat->flags, &base->water, &water);\n+\tlpuart_read32(plat->flags, &base->stat, &stat);\n+\tif (stat & STAT_OR)\n+\t\tlpuart_write32(plat->flags, &base->stat, STAT_OR);\n \n+\tlpuart_read32(plat->flags, &base->water, &water);\n \tif ((water >> 24) == 0)\n \t\treturn 0;\n \n","prefixes":["2/2"]}