Re: [PATCH v2 2/2] fpga manager: Add Xilinx slave serial SPI driver

[Anatolij Gustschin <agust-ynQEQJNshbs@public.gmane.org>]

On Tue, 21 Feb 2017 15:51:18 +0100
Michal Simek michal.simek-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org wrote:
...
>>> What's the hw configuration?  
>> 
>> I used Spartan-6 for testing. But the driver might work with other
>> Xilinx FPGAs, so I didn't add exact hw description.  
>
>ok. I expect this is spartan-6 next to another SoC and you use spi for
>that another SoC and you connect.

yes, it is MVEBU SoC, I'm using orion_spi driver. The connection is
unidirectional SPI.

>I think it will be good to extend that example and add also spi device
>node to see where this should be placed.

You mean the example in the binding description? I can add there
something like:

Usage example for full FPGA configuration:

fpga-region0 {
	compatible = "fpga-region";
	fpga-mgr = <&fpga_mgr_spi>;
	#address-cells = <0x1>;
	#size-cells = <0x1>;
};

&spi1 {
	status = "okay";

	fpga_mgr_spi: fpga-mgr@0 {
		compatible = "xlnx,fpga-slave-serial";
		reg = <0>;
		spi-max-frequency = <60000000>;
		spi-cpha;
		done-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
		prog_b-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
	};
}; 

Thanks,
Anatolij
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