Re: [PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on core1 of AMP boot issue

2012-07-11 Thread Scott Wood 
On 07/10/2012 09:07 PM, Jia Hongtao-B38951 wrote:
> 
> 
>> -Original Message-
>> From: Wood Scott-B07421
>> Sent: Wednesday, July 11, 2012 2:15 AM
>> To: Jia Hongtao-B38951
>> Cc: linuxppc-dev@lists.ozlabs.org; ga...@kernel.crashing.org
>> Subject: Re: [PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on
>> core1 of AMP boot issue
>>
>> On 07/10/2012 01:08 AM, Jia Hongtao wrote:
>>> The issue log on core1 is:
>>> root@mpc8572ds:~# ifconfig eth0 10.192.208.244
>>> net eth0: could not attach to PHY
>>> SIOCSIFFLAGS: No such device
>>>
>>> To attach PHY node mdio@24520 should not be disabled in dts of core1.
>>> Because all PHYs are controlled through this node as follows:
>>
>> So you grant it to both partitions?  How do you deal with synchronization?
>>
>> -Scott
> 
> PHY nodes are only used by ethernet. Each ethernet is used by only one 
> partition
> (disabled in the other partition). So I think there is no synchronization 
> issue.

I mean for accessing the MDIO bus.

-Scott

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RE: [PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on core1 of AMP boot issue

2012-07-10 Thread Jia Hongtao-B38951 


> -Original Message-
> From: Wood Scott-B07421
> Sent: Wednesday, July 11, 2012 2:15 AM
> To: Jia Hongtao-B38951
> Cc: linuxppc-dev@lists.ozlabs.org; ga...@kernel.crashing.org
> Subject: Re: [PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on
> core1 of AMP boot issue
> 
> On 07/10/2012 01:08 AM, Jia Hongtao wrote:
> > The issue log on core1 is:
> > root@mpc8572ds:~# ifconfig eth0 10.192.208.244
> > net eth0: could not attach to PHY
> > SIOCSIFFLAGS: No such device
> >
> > To attach PHY node mdio@24520 should not be disabled in dts of core1.
> > Because all PHYs are controlled through this node as follows:
> 
> So you grant it to both partitions?  How do you deal with synchronization?
> 
> -Scott

PHY nodes are only used by ethernet. Each ethernet is used by only one partition
(disabled in the other partition). So I think there is no synchronization issue.

Thanks.
-Jia Hongtao. 
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Re: [PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on core1 of AMP boot issue

2012-07-10 Thread Scott Wood 
On 07/10/2012 01:08 AM, Jia Hongtao wrote:
> The issue log on core1 is:
> root@mpc8572ds:~# ifconfig eth0 10.192.208.244
> net eth0: could not attach to PHY
> SIOCSIFFLAGS: No such device
> 
> To attach PHY node mdio@24520 should not be disabled in dts of core1.
> Because all PHYs are controlled through this node as follows:

So you grant it to both partitions?  How do you deal with synchronization?

-Scott

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Re: [PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on core1 of AMP boot issue

2012-07-10 Thread Kumar Gala 

On Jul 10, 2012, at 1:08 AM, Jia Hongtao wrote:

> The issue log on core1 is:
> root@mpc8572ds:~# ifconfig eth0 10.192.208.244
> net eth0: could not attach to PHY
> SIOCSIFFLAGS: No such device
> 
> To attach PHY node mdio@24520 should not be disabled in dts of core1.
> Because all PHYs are controlled through this node as follows:
> 
> mdio@24520 {
>   phy0: ethernet-phy@0 {
>   interrupts = <10 1 0 0>;
>   reg = <0x0>;
>   };
>   phy1: ethernet-phy@1 {
>   interrupts = <10 1 0 0>;
>   reg = <0x1>;
>   };
>   phy2: ethernet-phy@2 {
>   interrupts = <10 1 0 0>;
>   reg = <0x2>;
>   };
>   phy3: ethernet-phy@3 {
>   interrupts = <10 1 0 0>;
>   reg = <0x3>;
>   };
> 
>   tbi0: tbi-phy@11 {
>   reg = <0x11>;
>   device_type = "tbi-phy";
>   };
> };
> 
> Signed-off-by: Li Yang 
> Signed-off-by: Jia Hongtao 
> ---
> arch/powerpc/boot/dts/mpc8572ds_camp_core1.dts |3 ---
> 1 files changed, 0 insertions(+), 3 deletions(-)

applied to next

- k
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[PATCH 1/2] powerpc/mpc8572ds: Fix eTSEC is not available on core1 of AMP boot issue

2012-07-09 Thread Jia Hongtao 
The issue log on core1 is:
root@mpc8572ds:~# ifconfig eth0 10.192.208.244
net eth0: could not attach to PHY
SIOCSIFFLAGS: No such device

To attach PHY node mdio@24520 should not be disabled in dts of core1.
Because all PHYs are controlled through this node as follows:

mdio@24520 {
phy0: ethernet-phy@0 {
interrupts = <10 1 0 0>;
reg = <0x0>;
};
phy1: ethernet-phy@1 {
interrupts = <10 1 0 0>;
reg = <0x1>;
};
phy2: ethernet-phy@2 {
interrupts = <10 1 0 0>;
reg = <0x2>;
};
phy3: ethernet-phy@3 {
interrupts = <10 1 0 0>;
reg = <0x3>;
};

tbi0: tbi-phy@11 {
reg = <0x11>;
device_type = "tbi-phy";
};
};

Signed-off-by: Li Yang 
Signed-off-by: Jia Hongtao 
---
 arch/powerpc/boot/dts/mpc8572ds_camp_core1.dts |3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/boot/dts/mpc8572ds_camp_core1.dts 
b/arch/powerpc/boot/dts/mpc8572ds_camp_core1.dts
index d6a8faf..1932396 100644
--- a/arch/powerpc/boot/dts/mpc8572ds_camp_core1.dts
+++ b/arch/powerpc/boot/dts/mpc8572ds_camp_core1.dts
@@ -67,9 +67,6 @@
ethernet@24000 {
status = "disabled";
};
-   mdio@24520 {
-   status = "disabled";
-   };
ptp_clock@24e00 {
status = "disabled";
};
-- 
1.7.5.1


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