[PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Pavel Machek]

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Fix overlapping NAND partitions.

Signed-off-by: Pavel Machek <pavel@ucw.cz>

diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts
index b1d3292..e41b88a 100644
--- a/arch/powerpc/boot/dts/sequoia.dts
+++ b/arch/powerpc/boot/dts/sequoia.dts
@@ -229,7 +229,7 @@
 						};
 						partition@84000 {
 							label = "user";
-							reg = <0x00000000 0x01f7c000>;
+							reg = <0x00084000 0x01f7c000>;
 						};
 					};
 				};



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Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Pavel Machek]

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On Sun 2017-04-02 12:05:36, Pavel Machek wrote:
> Fix overlapping NAND partitions.
> 
> Signed-off-by: Pavel Machek <pavel@ucw.cz>

Ping? Two partitions at same place are bad news...
									Pavel

> diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts
> index b1d3292..e41b88a 100644
> --- a/arch/powerpc/boot/dts/sequoia.dts
> +++ b/arch/powerpc/boot/dts/sequoia.dts
> @@ -229,7 +229,7 @@
>  						};
>  						partition@84000 {
>  							label = "user";
> -							reg = <0x00000000 0x01f7c000>;
> +							reg = <0x00084000 0x01f7c000>;
>  						};
>  					};
>  				};
> 
> 
> 



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(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Andrew Morton]

On Wed, 17 May 2017 14:06:13 +0200 Pavel Machek <pavel@denx.de> wrote:

> On Sun 2017-04-02 12:05:36, Pavel Machek wrote:
> > Fix overlapping NAND partitions.
> > 
> > Signed-off-by: Pavel Machek <pavel@ucw.cz>
> 
> Ping? Two partitions at same place are bad news...

Please expand on "bad news"?  What are the runtime effects of this
change?  Decisions about which kernel(s) to patch depend on this info.

Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Pavel Machek]

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On Wed 2017-05-17 14:37:17, Andrew Morton wrote:
> On Wed, 17 May 2017 14:06:13 +0200 Pavel Machek <pavel@denx.de> wrote:
> 
> > On Sun 2017-04-02 12:05:36, Pavel Machek wrote:
> > > Fix overlapping NAND partitions.
> > > 
> > > Signed-off-by: Pavel Machek <pavel@ucw.cz>
> > 
> > Ping? Two partitions at same place are bad news...
> 
> Please expand on "bad news"?  What are the runtime effects of this
> change?  Decisions about which kernel(s) to patch depend on this info.

Well... two partitions at same place. If you use one, you will corrupt
information on the other one.

OTOH this moves partition around (so that they don't overlap) so it is
probably not stable candidate.

I guess this is not huge issue; people using these boards probably
have custom dts changes, anyway...

Best regards,

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Michael Ellerman]

Pavel Machek <pavel@denx.de> writes:

> On Wed 2017-05-17 14:37:17, Andrew Morton wrote:
>> On Wed, 17 May 2017 14:06:13 +0200 Pavel Machek <pavel@denx.de> wrote:
>> 
>> > On Sun 2017-04-02 12:05:36, Pavel Machek wrote:
>> > > Fix overlapping NAND partitions.
>> > > 
>> > > Signed-off-by: Pavel Machek <pavel@ucw.cz>
>> > 
>> > Ping? Two partitions at same place are bad news...
>> 
>> Please expand on "bad news"?  What are the runtime effects of this
>> change?  Decisions about which kernel(s) to patch depend on this info.
>
> Well... two partitions at same place. If you use one, you will corrupt
> information on the other one.
>
> OTOH this moves partition around (so that they don't overlap) so it is
> probably not stable candidate.
>
> I guess this is not huge issue; people using these boards probably
> have custom dts changes, anyway...

Or no one's even using it anymore.

I can take this via powerpc, I won't mark it for stable etc.

cheers

Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Pavel Machek]

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Hi!

> > Well... two partitions at same place. If you use one, you will corrupt
> > information on the other one.
> >
> > OTOH this moves partition around (so that they don't overlap) so it is
> > probably not stable candidate.
> >
> > I guess this is not huge issue; people using these boards probably
> > have custom dts changes, anyway...
> 
> Or no one's even using it anymore.
> 
> I can take this via powerpc, I won't mark it for stable etc.

That sounds good.

Thanks,
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Michael Ellerman]

Michael Ellerman <mpe@ellerman.id.au> writes:

> Pavel Machek <pavel@denx.de> writes:
>
>> On Wed 2017-05-17 14:37:17, Andrew Morton wrote:
>>> On Wed, 17 May 2017 14:06:13 +0200 Pavel Machek <pavel@denx.de> wrote:
>>> 
>>> > On Sun 2017-04-02 12:05:36, Pavel Machek wrote:
>>> > > Fix overlapping NAND partitions.
>>> > > 
>>> > > Signed-off-by: Pavel Machek <pavel@ucw.cz>
>>> > 
>>> > Ping? Two partitions at same place are bad news...
>>> 
>>> Please expand on "bad news"?  What are the runtime effects of this
>>> change?  Decisions about which kernel(s) to patch depend on this info.
>>
>> Well... two partitions at same place. If you use one, you will corrupt
>> information on the other one.
>>
>> OTOH this moves partition around (so that they don't overlap) so it is
>> probably not stable candidate.
>>
>> I guess this is not huge issue; people using these boards probably
>> have custom dts changes, anyway...
>
> Or no one's even using it anymore.
>
> I can take this via powerpc, I won't mark it for stable etc.

It became:

    Author:     Pavel Machek <pavel@denx.de>

    powerpc/sequoia: Fix NAND partitions not to overlap
    
    Currently the DTS defines two partitions at the same addresses, if you
    use one, you will corrupt information on the other one. Fix it by
    shifting the second partition.
    
    Signed-off-by: Pavel Machek <pavel@ucw.cz>
    [mpe: Reconstruct change log from email thread]
    Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>


Minor nit, your From: address doesn't match your Signed-off-by: address,
which trips my "check patch is signed-off-by author" script. I can
just ignore it, but I think it's preferable if they match.

cheers

Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Pavel Machek]

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Hi!

> >>> > > Signed-off-by: Pavel Machek <pavel@ucw.cz>
> >>> > 
> >>> > Ping? Two partitions at same place are bad news...
> >>> 
> >>> Please expand on "bad news"?  What are the runtime effects of this
> >>> change?  Decisions about which kernel(s) to patch depend on this info.
> >>
> >> Well... two partitions at same place. If you use one, you will corrupt
> >> information on the other one.
> >>
> >> OTOH this moves partition around (so that they don't overlap) so it is
> >> probably not stable candidate.
> >>
> >> I guess this is not huge issue; people using these boards probably
> >> have custom dts changes, anyway...
> >
> > Or no one's even using it anymore.
> >
> > I can take this via powerpc, I won't mark it for stable etc.
> 
> It became:
> 
>     Author:     Pavel Machek <pavel@denx.de>
> 
>     powerpc/sequoia: Fix NAND partitions not to overlap
>     
>     Currently the DTS defines two partitions at the same addresses, if you
>     use one, you will corrupt information on the other one. Fix it by
>     shifting the second partition.
>     
>     Signed-off-by: Pavel Machek <pavel@ucw.cz>
>     [mpe: Reconstruct change log from email thread]
>     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
> 
> 
> Minor nit, your From: address doesn't match your Signed-off-by: address,
> which trips my "check patch is signed-off-by author" script. I can
> just ignore it, but I think it's preferable if they match.

Sorry about that (I have automatic scripts changing From:). It is
still me, but I guess denx should get the credit here, so you can use.

Signed-off-by: Pavel Machek <pavel@denx.de>

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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Re: [PATCH] powerpc/sequoia: fix NAND partitions not to overlap

[Michael Ellerman]

Pavel Machek <pavel@denx.de> writes:

> Hi!
>
>> >>> > > Signed-off-by: Pavel Machek <pavel@ucw.cz>
>> >>> > 
>> >>> > Ping? Two partitions at same place are bad news...
>> >>> 
>> >>> Please expand on "bad news"?  What are the runtime effects of this
>> >>> change?  Decisions about which kernel(s) to patch depend on this info.
>> >>
>> >> Well... two partitions at same place. If you use one, you will corrupt
>> >> information on the other one.
>> >>
>> >> OTOH this moves partition around (so that they don't overlap) so it is
>> >> probably not stable candidate.
>> >>
>> >> I guess this is not huge issue; people using these boards probably
>> >> have custom dts changes, anyway...
>> >
>> > Or no one's even using it anymore.
>> >
>> > I can take this via powerpc, I won't mark it for stable etc.
>> 
>> It became:
>> 
>>     Author:     Pavel Machek <pavel@denx.de>
>> 
>>     powerpc/sequoia: Fix NAND partitions not to overlap
>>     
>>     Currently the DTS defines two partitions at the same addresses, if you
>>     use one, you will corrupt information on the other one. Fix it by
>>     shifting the second partition.
>>     
>>     Signed-off-by: Pavel Machek <pavel@ucw.cz>
>>     [mpe: Reconstruct change log from email thread]
>>     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
>> 
>> 
>> Minor nit, your From: address doesn't match your Signed-off-by: address,
>> which trips my "check patch is signed-off-by author" script. I can
>> just ignore it, but I think it's preferable if they match.
>
> Sorry about that (I have automatic scripts changing From:). It is
> still me, but I guess denx should get the credit here, so you can use.
>
> Signed-off-by: Pavel Machek <pavel@denx.de>

Sure, done.

cheers

Re: powerpc/sequoia: fix NAND partitions not to overlap

[Michael Ellerman]

On Sun, 2017-04-02 at 10:05:36 UTC, Pavel Machek wrote:
> Fix overlapping NAND partitions.
> 
> Signed-off-by: Pavel Machek <pavel@ucw.cz>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/70a92003de599ff2f15815b3d9c445

cheers