[PATCH 4/5] ARM: BCM5301X: Add DT for Asus RT-N18U

[Rafał Miłecki]

On 3 December 2014 at 06:40, Rafał Miłecki <zajec5 at gmail.com> wrote:
> On 3 December 2014 at 00:19, Hauke Mehrtens <hauke at hauke-m.de> wrote:
>> On 11/30/2014 06:28 PM, Rafał Miłecki wrote:
>>> Signed-off-by: Rafał Miłecki <zajec5 at gmail.com>
>>> ---
>>>  arch/arm/boot/dts/Makefile                  |  3 +-
>>>  arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts | 78 +++++++++++++++++++++++++++++
>>>  arch/arm/boot/dts/bcm47081.dtsi             | 26 ++++++++++
>>>  arch/arm/mach-bcm/bcm_5301x.c               |  1 +
>>>  4 files changed, 107 insertions(+), 1 deletion(-)
>>>  create mode 100644 arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
>>>  create mode 100644 arch/arm/boot/dts/bcm47081.dtsi
>>>
>>> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
>>> index 18a21d9..db51a31 100644
>>> --- a/arch/arm/boot/dts/Makefile
>>> +++ b/arch/arm/boot/dts/Makefile
>>> @@ -58,7 +58,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b-plus.dtb
>>>  dtb-$(CONFIG_ARCH_BCM_5301X) += \
>>>       bcm4708-buffalo-wzr-1750dhp.dtb \
>>>       bcm4708-netgear-r6250.dtb \
>>> -     bcm4708-netgear-r6300-v2.dtb
>>> +     bcm4708-netgear-r6300-v2.dtb \
>>> +     bcm47081-asus-rt-n18u.dtb
>>>  dtb-$(CONFIG_ARCH_BCM_63XX) += bcm963138dvt.dtb
>>>  dtb-$(CONFIG_ARCH_BCM_CYGNUS) += bcm911360_entphn.dtb \
>>>       bcm911360k.dtb \
>>> diff --git a/arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts b/arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
>>> new file mode 100644
>>> index 0000000..c40ad39
>>> --- /dev/null
>>> +++ b/arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts
>>> @@ -0,0 +1,78 @@
>>> +/*
>>> + * Broadcom BCM470X / BCM5301X ARM platform code.
>>> + * DTS for Asus RT-N18U
>>> + *
>>> + * Copyright © 2014 Rafał Miłecki <zajec5 at gmail.com>
>>> + *
>>> + * Licensed under the GNU/GPL. See COPYING for details.
>>> + */
>>> +
>>> +/dts-v1/;
>>> +
>>> +#include "bcm47081.dtsi"
>>> +
>>> +/ {
>>> +     compatible = "asus,rt-n18u", "brcm,bcm47081";
>>
>> Instead of adding bcm47081 to the core code you can do this:
>>
>> compatible = "asus,rt-n18u", "brcm,bcm47081", "brcm,bcm4708";
>>
>> If we later need some special handling for bcm47081 we can add this but
>> the old dts file will still work. This is more relevant if the dts file
>> is in the boot loader.
>
> I don't get it. How should I detect there is no second CPU?

Aaaah, you meant not adding *core code*, not the DTS file. I didn't
notice that in the first place. Now it's clear, thanks!

-- 
Rafał