This is a note to let you know that I've just added the patch titled
ARC: [nsimosci] Change .dts to use generic 8250 UART
to the 3.10-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-change-.dts-to-use-generic-8250-uart.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 6eda477b3c54b8236868c8784e5e042ff14244f0 Mon Sep 17 00:00:00 2001
From: Mischa Jonker <mjon...@synopsys.com>
Date: Thu, 16 May 2013 19:36:08 +0200
Subject: ARC: [nsimosci] Change .dts to use generic 8250 UART
From: Mischa Jonker <mjon...@synopsys.com>
commit 6eda477b3c54b8236868c8784e5e042ff14244f0 upstream.
The Synopsys APB DW UART has a couple of special features that are not
in the System C model. In 3.8, the 8250_dw driver didn't really use these
features, but from 3.9 onwards, the 8250_dw driver has become incompatible
with our model.
Signed-off-by: Mischa Jonker <mjon...@synopsys.com>
Signed-off-by: Vineet Gupta <vgu...@synopsys.com>
Cc: Francois Bedard <francois.bed...@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
arch/arc/boot/dts/nsimosci.dts | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
--- a/arch/arc/boot/dts/nsimosci.dts
+++ b/arch/arc/boot/dts/nsimosci.dts
@@ -11,7 +11,7 @@
/ {
compatible = "snps,nsimosci";
- clock-frequency = <80000000>; /* 80 MHZ */
+ clock-frequency = <20000000>; /* 20 MHZ */
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&intc>;
@@ -44,15 +44,14 @@
};
uart0: serial@c0000000 {
- compatible = "snps,dw-apb-uart";
+ compatible = "ns8250";
reg = <0xc0000000 0x2000>;
interrupts = <11>;
- #clock-frequency = <80000000>;
clock-frequency = <3686400>;
baud = <115200>;
reg-shift = <2>;
reg-io-width = <4>;
- status = "okay";
+ no-loopback-test = <1>;
};
pgu0: pgu@c9000000 {
Patches currently in stable-queue which might be from mjon...@synopsys.com are
queue-3.10/arc-change-.dts-to-use-generic-8250-uart.patch
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