Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device tree binding

From	Jonas Gorski <jogo@openwrt.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device tree binding
Date	2015-12-02 20:40 +0100
Message-ID	<qBlpT-35b-3@gated-at.bofh.it> (permalink)
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On Wed, Dec 2, 2015 at 8:05 PM, Brian Norris
<computersforpeace@gmail.com> wrote:
> + Broadcom list + Kamal
>
> On Tue, Nov 24, 2015 at 08:19:37PM -0000, Simon Arlott wrote:
>> Add device tree binding for NAND on the BCM63268.
>>
>> The BCM63268 has a NAND interrupt register with combined status and enable
>> registers.
>>
>> Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
>> ---
>>  .../devicetree/bindings/mtd/brcm,brcmnand.txt      | 35 ++++++++++++++++++++++
>>  1 file changed, 35 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
>> b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
>> index 4ff7128..f2a71c8 100644
>> --- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
>> +++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
>> @@ -72,6 +72,14 @@ we define additional 'compatible' properties and associated register resources w
>>         and enable registers
>>       - reg-names: (required) "nand-int-base"
>>
>> +   * "brcm,nand-bcm63268"
>> +     - compatible: should contain "brcm,nand-bcm<soc>", "brcm,nand-bcm63268"
>
> Looks like you're aiming to support bcm63168? Is bcm63268 the first
> chip to include this style of register then? The numbering seems
> backwards, but that may just be reality.

There are four chip variants, bcm63168, bcm63268, bcm63169 and
bcm63269, and they were all introduced at the same time. the *16x have
less features than *26x (IIRC only two rgmii ports instead of four, no
hw crypto, maybe no dect?), and the *9 ones have no xDSL support.

From a registers location/layout, clocks, etc standpoint, there is no
difference between bcm63168 and bcm63268 (and the x9's).

As a reference, Broadcom uses bcm63268 as the "generic" name for the
chip family in their code, but on their website only advertise the
bcm63168. Both chips do exist though, and at least the bcm63169, I
have devices with these three here.


Jonas
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Thread

Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Brian Norris <computersforpeace@gmail.com> - 2015-12-02 20:10 +0100
  Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Florian Fainelli <f.fainelli@gmail.com> - 2015-12-02 20:40 +0100
    Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Simon Arlott <simon@fire.lp0.eu> - 2015-12-02 21:10 +0100
      Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Florian Fainelli <fainelli@broadcom.com> - 2015-12-02 22:50 +0100
  Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Jonas Gorski <jogo@openwrt.org> - 2015-12-02 20:40 +0100
  Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Simon Arlott <simon@fire.lp0.eu> - 2015-12-02 20:50 +0100
    Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Brian Norris <computersforpeace@gmail.com> - 2015-12-02 21:10 +0100
      Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Simon Arlott <simon@fire.lp0.eu> - 2015-12-02 21:20 +0100
        Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Brian Norris <computersforpeace@gmail.com> - 2015-12-02 21:30 +0100
        Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Brian Norris <computersforpeace@gmail.com> - 2015-12-02 21:30 +0100
          Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Simon Arlott <simon@fire.lp0.eu> - 2015-12-02 21:40 +0100
            Re: [PATCH (v6) 1/2] mtd: brcmnand: Add brcm,bcm63268-nand device  tree binding Brian Norris <computersforpeace@gmail.com> - 2015-12-02 21:50 +0100

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