From: Andre Przywara <andre.przywara@arm.com>
To: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, Jaxson Han <Jaxson.Han@arm.com>
Subject: [aarch64 boot-wrapper PATCH 3/6] configure: Use earlycon instead of earlyprintk
Date: Mon, 10 May 2021 13:07:23 +0100 [thread overview]
Message-ID: <20210510120726.5242-4-andre.przywara@arm.com> (raw)
In-Reply-To: <20210510120726.5242-1-andre.przywara@arm.com>
The arm64 Linux kernel dropped support for the "earlyprintk" command line
parameter a long time ago[1], instead it uses the earlycon parameter
now.
Replace earlyprintk with earlycon on the default command line, to see
early kernel output.
Ideally we would just say "earlycon" (without specifying an MMIO
address), but this relies on the stdout-path property in the /chosen
node, which the model DTs do not carry.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8ef0ed95ee04
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
configure.ac | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 2b295de..9e3b722 100644
--- a/configure.ac
+++ b/configure.ac
@@ -99,7 +99,7 @@ AC_SUBST([FILESYSTEM], [$USE_INITRD])
AM_CONDITIONAL([INITRD], [test "x$USE_INITRD" != "x"])
AS_IF([test "x$X_IMAGE" = "x"],[C_CONSOLE="ttyAMA0"],[C_CONSOLE="hvc0"])
-C_CMDLINE="console=$C_CONSOLE earlyprintk=pl011,0x1c090000"
+C_CMDLINE="console=$C_CONSOLE earlycon=pl011,0x1c090000"
AC_ARG_WITH([cmdline],
AS_HELP_STRING([--with-cmdline], [set a command line for the kernel]),
[C_CMDLINE=$withval])
--
2.25.1
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next prev parent reply other threads:[~2021-05-10 12:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 12:07 [aarch64 boot-wrapper PATCH 0/6] Various (build system) fixes Andre Przywara
2021-05-10 12:07 ` [aarch64 boot-wrapper PATCH 1/6] configure: Make PSCI the default boot method Andre Przywara
2021-05-10 12:07 ` [aarch64 boot-wrapper PATCH 2/6] configure: Fix default DTB Andre Przywara
2021-05-10 12:07 ` Andre Przywara [this message]
2021-05-10 12:07 ` [aarch64 boot-wrapper PATCH 4/6] Fix arch counter frequency Andre Przywara
2021-05-10 12:07 ` [aarch64 boot-wrapper PATCH 5/6] pointer auth: Document CPU feature bit mask Andre Przywara
2021-05-10 12:07 ` [aarch64 boot-wrapper PATCH 6/6] configure: Autodetect GICv3 Andre Przywara
2021-07-30 17:40 ` [aarch64 boot-wrapper PATCH 0/6] Various (build system) fixes Andre Przywara
2021-08-02 14:30 ` Mark Rutland
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