From mboxrd@z Thu Jan 1 00:00:00 1970 From: jonathanh@nvidia.com (Jon Hunter) Date: Wed, 17 Feb 2016 16:43:42 +0000 Subject: [PATCH] ARM64: Don't set the default console to ttyAMA0 Message-ID: <1455727422-10733-1-git-send-email-jonathanh@nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org When booting Tegra210 with a minimal rootfs it may not be necessary to specify any boot parameters via the kernel command line as information for console is described via the "stdout-path" node the device-tree blob. However, when there are no boot parameter specified, no output is seen on the console in the case of Tegra210 and this is because the default command line in the ARM64 defconfig specifies the console as ttyAMA0 which takes precedence over the "stdout-path" node from device-tree. ttyAMAx is used for AMBA PL011 serial ports, but not all ARM64 platforms use this serial driver. Therefore, remove the default command line entry from the ARM64 defconfig to ensure that ttyAMA0 does not get set as the default console if no kernel command line is specified. Signed-off-by: Jon Hunter --- arch/arm64/configs/defconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index d21631760ec7..caecb66188be 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -64,7 +64,6 @@ CONFIG_KSM=y CONFIG_TRANSPARENT_HUGEPAGE=y CONFIG_CMA=y CONFIG_XEN=y -CONFIG_CMDLINE="console=ttyAMA0" # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set CONFIG_COMPAT=y CONFIG_CPU_IDLE=y -- 2.1.4