{"id":2207237,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2207237/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/patch/20260309105110.672832-3-daniel@0x0f.com/","project":{"id":18,"url":"http://patchwork.ozlabs.org/api/1.2/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":"<20260309105110.672832-3-daniel@0x0f.com>","list_archive_url":null,"date":"2026-03-09T10:51:10","name":"[v2,3/3] doc: board: virt: m68k: Detail how to use debug uart","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"2c47562bea9ba37539fcfe926b439f2943b243f8","submitter":{"id":74011,"url":"http://patchwork.ozlabs.org/api/1.2/people/74011/?format=json","name":"Daniel Palmer","email":"daniel@0x0f.com"},"delegate":{"id":14103,"url":"http://patchwork.ozlabs.org/api/1.2/users/14103/?format=json","username":"spectrum","first_name":"Angelo","last_name":"Dureghello","email":"sysamfw@gmail.com"},"mbox":"http://patchwork.ozlabs.org/project/uboot/patch/20260309105110.672832-3-daniel@0x0f.com/mbox/","series":[{"id":494987,"url":"http://patchwork.ozlabs.org/api/1.2/series/494987/?format=json","web_url":"http://patchwork.ozlabs.org/project/uboot/list/?series=494987","date":"2026-03-09T10:51:08","name":"[v2,1/3] serial: goldfish: Add debug uart support","version":2,"mbox":"http://patchwork.ozlabs.org/series/494987/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2207237/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2207237/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 (1024-bit key;\n unprotected) header.d=0x0f.com header.i=@0x0f.com header.a=rsa-sha256\n header.s=google header.b=pPOtnk0F;\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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I think the address is actually\nfixed right now but it might change in the future.\n\nSigned-off-by: Daniel Palmer \n---\n doc/board/emulation/qemu-m68k.rst | 10 ++++++++++\n 1 file changed, 10 insertions(+)","diff":"diff --git a/doc/board/emulation/qemu-m68k.rst b/doc/board/emulation/qemu-m68k.rst\nindex 6c4de54cf6a8..2f2e6bd6444a 100644\n--- a/doc/board/emulation/qemu-m68k.rst\n+++ b/doc/board/emulation/qemu-m68k.rst\n@@ -31,6 +31,16 @@ The minimal QEMU command line to get U-Boot up and running is:\n Note that the `-nographic` option is used to redirect the console to stdio,\n which connects to the emulated Goldfish TTY device.\n \n+Debugging U-Boot\n+----------------\n+\n+If you need early debugging output enable `CONFIG_DEBUG_UART_GOLDFISH`.\n+The base address for the UART can be found by activating the QEMU monitor,\n+running `info qtree`, and then looking for the goldfish tty device and\n+taking the mmio address.\n+\n+Baud rate doesn't matter.\n+\n Hardware Support\n ----------------\n The following QEMU virt peripherals are supported in U-Boot:\n","prefixes":["v2","3/3"]}