This is a note to let you know that I've just added the patch titled
ARC: [nsimosci] Unbork console
to the 3.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arc-unbork-console.patch
and it can be found in the queue-3.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 61fb4bfc010b0d2940f7fd87acbce6a0f03217cb Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Date: Sat, 5 Apr 2014 15:30:22 +0530
Subject: ARC: [nsimosci] Unbork console
From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
commit 61fb4bfc010b0d2940f7fd87acbce6a0f03217cb upstream.
Despite the switch to right UART driver (prev patch), serial console
still doesn't work due to missing CONFIG_SERIAL_OF_PLATFORM
Also fix the default cmdline in DT to not refer to out-of-tree
ARC framebuffer driver for console.
Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Cc: Francois Bedard <Francois.Bedard@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arc/boot/dts/nsimosci.dts | 5 ++++-
arch/arc/configs/nsimosci_defconfig | 1 +
2 files changed, 5 insertions(+), 1 deletion(-)
--- a/arch/arc/boot/dts/nsimosci.dts
+++ b/arch/arc/boot/dts/nsimosci.dts
@@ -17,7 +17,10 @@
interrupt-parent = <&intc>;
chosen {
- bootargs = "console=tty0 consoleblank=0";
+ /* this is for console on PGU */
+ /* bootargs = "console=tty0 consoleblank=0"; */
+ /* this is for console on serial */
+ bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=ttyS0,115200n8 consoleblank=0 debug";
};
aliases {
--- a/arch/arc/configs/nsimosci_defconfig
+++ b/arch/arc/configs/nsimosci_defconfig
@@ -54,6 +54,7 @@ CONFIG_SERIO_ARC_PS2=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_ARC=y
CONFIG_SERIAL_ARC_CONSOLE=y
# CONFIG_HW_RANDOM is not set
Patches currently in stable-queue which might be from vgupta@xxxxxxxxxxxx are
queue-3.13/arc-unbork-console.patch
queue-3.13/arc-change-.dts-to-use-generic-8250-uart.patch
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