This is a note to let you know that I've just added the patch titled
clk: mvebu: adjust AP806 CPU clock frequencies to production chip
to the 4.9-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:
clk-mvebu-adjust-ap806-cpu-clock-frequencies-to-production-chip.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Nov 9 09:48:01 CET 2017
From: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Date: Thu, 22 Dec 2016 13:08:14 +0100
Subject: clk: mvebu: adjust AP806 CPU clock frequencies to production chip
From: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
[ Upstream commit 0c70ffc5f300e7c3a1a76ca0530860574afc890b ]
This commit adjusts the list of possible "Sample At Reset" values that
define the CPU clock frequency of the AP806 (part of Marvell Armada
7K/8K) to the values that have been validated with the production
chip. Earlier values were preliminary.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/clk/mvebu/ap806-system-controller.c | 28 +++++++++++++++++++++++-----
1 file changed, 23 insertions(+), 5 deletions(-)
--- a/drivers/clk/mvebu/ap806-system-controller.c
+++ b/drivers/clk/mvebu/ap806-system-controller.c
@@ -55,21 +55,39 @@ static int ap806_syscon_clk_probe(struct
freq_mode = reg & AP806_SAR_CLKFREQ_MODE_MASK;
switch (freq_mode) {
- case 0x0 ... 0x5:
+ case 0x0:
+ case 0x1:
cpuclk_freq = 2000;
break;
- case 0x6 ... 0xB:
+ case 0x6:
+ case 0x7:
cpuclk_freq = 1800;
break;
- case 0xC ... 0x11:
+ case 0x4:
+ case 0xB:
+ case 0xD:
cpuclk_freq = 1600;
break;
- case 0x12 ... 0x16:
+ case 0x1a:
cpuclk_freq = 1400;
break;
- case 0x17 ... 0x19:
+ case 0x14:
+ case 0x17:
cpuclk_freq = 1300;
break;
+ case 0x19:
+ cpuclk_freq = 1200;
+ break;
+ case 0x13:
+ case 0x1d:
+ cpuclk_freq = 1000;
+ break;
+ case 0x1c:
+ cpuclk_freq = 800;
+ break;
+ case 0x1b:
+ cpuclk_freq = 600;
+ break;
default:
dev_err(&pdev->dev, "invalid SAR value\n");
return -EINVAL;
Patches currently in stable-queue which might be from thomas.petazzoni@xxxxxxxxxxxxxxxxxx are
queue-4.9/clk-mvebu-adjust-ap806-cpu-clock-frequencies-to-production-chip.patch