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.
[Simon: backported to 3.10: unlike mentionned in the commit message,
this patch fixes a bug introduced by 97fa4cf4
"clk: mvebu: add mvebu core clocks". 6b72333d only moves the typo.]
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>
---
drivers/clk/mvebu/clk-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/clk/mvebu/clk-core.c b/drivers/clk/mvebu/clk-core.c
index 0a53edb..e5c477b 100644
--- a/drivers/clk/mvebu/clk-core.c
+++ b/drivers/clk/mvebu/clk-core.c
@@ -126,8 +126,8 @@ static void __init mvebu_clk_core_setup(struct device_node *np,
#define SARH_AXP_FAB_FREQ_OPT_SHIFT 4
static const u32 __initconst armada_370_tclk_frequencies[] = {
- 16600000,
- 20000000,
+ 166000000,
+ 200000000,
};
static u32 __init armada_370_get_tclk_freq(void __iomem *sar)
--
1.7.10.4
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