The patch below does not apply to the 3.11-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From 1022c75f5abd3a3b25e679bc8793d21bedd009b4 Mon Sep 17 00:00:00 2001
From: Simon Guinot <simon.guinot@xxxxxxxxxxxx>
Date: Thu, 3 Oct 2013 12:05:02 +0200
Subject: [PATCH] clk: armada-370: fix tclk frequencies
This patch fixes the tclk frequency array for the Armada-370 SoC.
This bug has been introduced by commit 6b72333d
("clk: mvebu: add Armada 370 SoC-centric clock init").
A wrong tclk frequency affects the following drivers: mvsdio, mvneta,
i2c-mv64xxx and mvebu-devbus. This list may be incomplete.
About the mvneta Ethernet driver, note that the tclk frequency is used
to compute the Rx time coalescence. Then, this bug harms the coalescence
configuration and also degrades the networking performances with the
default values.
Signed-off-by: Simon Guinot <simon.guinot@xxxxxxxxxxxx>
Cc: Andrew Lunn <andrew@xxxxxxx>
Cc: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
Acked-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Michael Turquette <mturquette@xxxxxxxxxxx>
diff --git a/drivers/clk/mvebu/armada-370.c b/drivers/clk/mvebu/armada-370.c
index fc777bdc1886..81a202d12a7a 100644
--- a/drivers/clk/mvebu/armada-370.c
+++ b/drivers/clk/mvebu/armada-370.c
@@ -39,8 +39,8 @@ static const struct coreclk_ratio a370_coreclk_ratios[] __initconst = {
};
static const u32 a370_tclk_freqs[] __initconst = {
- 16600000,
- 20000000,
+ 166000000,
+ 200000000,
};
static u32 __init a370_get_tclk_freq(void __iomem *sar)
--
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