[PATCH 2/5] powerpc/fsl-booke: Add initial silicon device tree files for B4860 and B4420

Kumar Gala galak at kernel.crashing.org
Fri Apr 5 06:13:38 EST 2013


On Apr 4, 2013, at 2:10 AM, Leekha Shaveta-B20052 wrote:

> 
> 
> -----Original Message-----
> From: Kumar Gala [mailto:galak at kernel.crashing.org] 
> Sent: Wednesday, April 03, 2013 10:10 PM
> To: Leekha Shaveta-B20052
> Cc: linuxppc-dev at lists.ozlabs.org; Zhao Chenhui-B35336; Li Yang-R58472; Tang Yuantian-B29983; Sethi Varun-B16395; Lian Minghuan-B31939; Mehresh Ramneek-B31383; Fleming Andy-AFLEMING; Garg Vakul-B16394
> Subject: Re: [PATCH 2/5] powerpc/fsl-booke: Add initial silicon device tree files for B4860 and B4420
> 
> 
> On Apr 2, 2013, at 2:16 AM, Shaveta Leekha wrote:
> 
>> B4860 and B4420 are similar that share some commonalities
>> 
>> * common features have been added in b4si-pre.dtsi and b4si-post.dtsi
>> * differences are added in respective silicon files of B4860 and B4420
> 
> What are the differences between B4860 & B4420, beyond # of cores?
> [SL] have detailed the differences in board support patch sent in this patch set.
> Do I need to mention the differences here also? 
> 
>> 
>> There are several things missing from the device trees of B4860 and B4420:
>> 
>> * DPAA related nodes (Qman, Bman, Fman, Rman)
>> * DSP related nodes/information
> 
> What about:
> 
> serdes, sfp [security fuse processor], thermal, gpio, maple, cpri, quad timers, 
> [SL] I would prefer to add, what have been added in device tree so far in patch description
> As that is clear to me.
> But as u suggested, I mentioned some of the nodes/things missing, though the list is not
> Exhaustive. Also I am not sure of, what would be added/required in future in these device tree files.
> 
> Anyways, I can add all the things you have mentioned above.
> Please tell if anything else is missing.

I would add the trivial ones and just make sure the list is exhaustive for the ones missing in the commit message.

> 
> Regards,
> Shaveta
> 
>> 
>> Signed-off-by: Shaveta Leekha <shaveta at freescale.com>
>> Signed-off-by: Zhao Chenhui <chenhui.zhao at freescale.com>
>> Signed-off-by: Li Yang <leoli at freescale.com>
>> Signed-off-by: Tang Yuantian <Yuantian.Tang at freescale.com>
>> Signed-off-by: Varun Sethi <Varun.Sethi at freescale.com>
>> Signed-off-by: Minghuan Lian <Minghuan.Lian at freescale.com>
>> Signed-off-by: Ramneek Mehresh <ramneek.mehresh at freescale.com>
>> Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
>> Signed-off-by: Andy Fleming <afleming at freescale.com>
>> Signed-off-by: Vakul Garg <vakul at freescale.com>
>> ---
>> arch/powerpc/boot/dts/fsl/b4420si-post.dtsi |   94 ++++++++++
>> arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi  |   49 +++++
>> arch/powerpc/boot/dts/fsl/b4860si-post.dtsi |  138 ++++++++++++++
>> arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi  |   59 ++++++
>> arch/powerpc/boot/dts/fsl/b4si-post.dtsi    |  262 +++++++++++++++++++++++++++
>> arch/powerpc/boot/dts/fsl/b4si-pre.dtsi     |   65 +++++++
> 
> Remove b4si-pre.dtsi, there isn't enough here to warrant not just merging it into b4420si-pre.dtsi & b4860si-pre.dtsi
> 

- k



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