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Date:	Mon, 10 Mar 2014 16:26:53 +0100
From:	Michal Simek <>
To:	Arnd Bergmann <>
CC:	<>,
	Marc Kleine-Budde <>, <>,
	<>, <>,
	<>, <>,
	<>, <>,
	Kedareswara rao Appana <>,
	Kedareswara rao Appana <>,
	<>, Fengguang Wu <>
Subject: Re: [PATCH v5] can: xilinx CAN controller support.

On 03/10/2014 04:15 PM, Arnd Bergmann wrote:
> On Monday 10 March 2014 16:10:31 Marc Kleine-Budde wrote:
>>>>> +config CAN_XILINXCAN
>>>>> +   tristate "Xilinx CAN"
>>>>> +   depends on ARCH_ZYNQ || MICROBLAZE
>>>> Is Zynq multiarch already?
>>> let me just answer this. Zynq is device with hardcoded dual arm cortex-a9 + some IPs
>>> and programmable logic.
>>> It means if you add Microblaze to PL or another CPU then you get multi architecture setup.
>> Sorry for the confusion, I'm not talking about
>> more-than-one-architecture-in-a-FPGA, but the feature of the ARM-Linux
>> Kernel to run on different ARM architecture. For example, it's possible
>> to start the same kernel on a freescale imx6 and a the new marvel ebu
>> platform. If the Zynq Kernel supports this feature, too, we should not
>> limit to ARCH_ZYNQ, but use ARM instead.
> Zynq has been multiplatform capable from the start. Ideally we'd let
> users build the driver for any architecture and specify the exact
> dependencies, it doesn't even have to be limited to ARM.
> You probably want something like
> 	config CAN_XILINX
> 	tristate "Xilinx CAN"
> 	depends on COMMON_CLK && HAS_MMIO  # whatever you need for other architectures

Fengguang: Are you use COMPILE_TEST in zero day testing system?


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