[PATCH] clk: mvebu: update cpu clock frequency

[PATCH] clk: mvebu: update cpu clock frequency

[Gregory CLEMENT]

Since u-boot 2015_T1.0p6 there are new requency settings available.

Based on a patch from Nadav Haklai <nadavh@marvell.com>

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
---
 drivers/clk/mvebu/armada-38x.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/mvebu/armada-38x.c b/drivers/clk/mvebu/armada-38x.c
index 8bccf4ecdab6..c64037e2e89f 100644
--- a/drivers/clk/mvebu/armada-38x.c
+++ b/drivers/clk/mvebu/armada-38x.c
@@ -46,10 +46,11 @@ static u32 __init armada_38x_get_tclk_freq(void __iomem *sar)
 }
 
 static const u32 armada_38x_cpu_frequencies[] __initconst = {
-	0, 0, 0, 0,
-	1066 * 1000 * 1000, 0, 0, 0,
+	666 * 1000 * 1000, 0, 800 * 1000 * 1000, 0,
+	1066 * 1000 * 1000, 0, 1200 * 1000 * 1000, 0,
 	1332 * 1000 * 1000, 0, 0, 0,
-	1600 * 1000 * 1000,
+	1600 * 1000 * 1000, 0, 0, 0,
+	1866 * 1000 * 1000, 0, 0, 2000 * 1000 * 1000,
 };
 
 static u32 __init armada_38x_get_cpu_freq(void __iomem *sar)
-- 
2.1.0

[PATCH] clk: mvebu: update cpu clock frequency

[Andrew Lunn]

On Thu, Jul 02, 2015 at 09:42:38PM +0200, Gregory CLEMENT wrote:
> Since u-boot 2015_T1.0p6 there are new requency settings available.

Hi Gregory

Missing f in f_requency.

Also, what has u-boot got to do with this? I would expect this is a
property of the hardware. What happens is an older u-boot is used?

Thanks
	Andrew

> 
> Based on a patch from Nadav Haklai <nadavh@marvell.com>
> 
> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
> ---
>  drivers/clk/mvebu/armada-38x.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/clk/mvebu/armada-38x.c b/drivers/clk/mvebu/armada-38x.c
> index 8bccf4ecdab6..c64037e2e89f 100644
> --- a/drivers/clk/mvebu/armada-38x.c
> +++ b/drivers/clk/mvebu/armada-38x.c
> @@ -46,10 +46,11 @@ static u32 __init armada_38x_get_tclk_freq(void __iomem *sar)
>  }
>  
>  static const u32 armada_38x_cpu_frequencies[] __initconst = {
> -	0, 0, 0, 0,
> -	1066 * 1000 * 1000, 0, 0, 0,
> +	666 * 1000 * 1000, 0, 800 * 1000 * 1000, 0,
> +	1066 * 1000 * 1000, 0, 1200 * 1000 * 1000, 0,
>  	1332 * 1000 * 1000, 0, 0, 0,
> -	1600 * 1000 * 1000,
> +	1600 * 1000 * 1000, 0, 0, 0,
> +	1866 * 1000 * 1000, 0, 0, 2000 * 1000 * 1000,
>  };
>  
>  static u32 __init armada_38x_get_cpu_freq(void __iomem *sar)
> -- 
> 2.1.0
> 

[PATCH] clk: mvebu: update cpu clock frequency

[Gregory CLEMENT]

Hi Andrew,

thanks for your prompt review

On 02/07/2015 22:04, Andrew Lunn wrote:
> On Thu, Jul 02, 2015 at 09:42:38PM +0200, Gregory CLEMENT wrote:
>> Since u-boot 2015_T1.0p6 there are new requency settings available.
> 
> Hi Gregory
> 
> Missing f in f_requency.

it must have been lost in the copy and paste I will fix it.

> 
> Also, what has u-boot got to do with this? I would expect this is a
> property of the hardware. What happens is an older u-boot is used?

As you probably know, a lot of "magical" initialization is done in the
U-boot from Marvell. So maybe is it the reason why u-boot was mentioned.
However you're right I will ask more information about especially if it
is safe to have this value with an older u-boot.

Thanks,

Gregory


> 
> Thanks
> 	Andrew
> 
>>
>> Based on a patch from Nadav Haklai <nadavh@marvell.com>
>>
>> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
>> ---
>>  drivers/clk/mvebu/armada-38x.c | 7 ++++---
>>  1 file changed, 4 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/clk/mvebu/armada-38x.c b/drivers/clk/mvebu/armada-38x.c
>> index 8bccf4ecdab6..c64037e2e89f 100644
>> --- a/drivers/clk/mvebu/armada-38x.c
>> +++ b/drivers/clk/mvebu/armada-38x.c
>> @@ -46,10 +46,11 @@ static u32 __init armada_38x_get_tclk_freq(void __iomem *sar)
>>  }
>>  
>>  static const u32 armada_38x_cpu_frequencies[] __initconst = {
>> -	0, 0, 0, 0,
>> -	1066 * 1000 * 1000, 0, 0, 0,
>> +	666 * 1000 * 1000, 0, 800 * 1000 * 1000, 0,
>> +	1066 * 1000 * 1000, 0, 1200 * 1000 * 1000, 0,
>>  	1332 * 1000 * 1000, 0, 0, 0,
>> -	1600 * 1000 * 1000,
>> +	1600 * 1000 * 1000, 0, 0, 0,
>> +	1866 * 1000 * 1000, 0, 0, 2000 * 1000 * 1000,
>>  };
>>  
>>  static u32 __init armada_38x_get_cpu_freq(void __iomem *sar)
>> -- 
>> 2.1.0
>>


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com