[RFC PATCHv2 2/2] ARM: socfpga: Add board support for Altera's SOCFPGA Cyclone 5 HW

[Dinh.Nguyen]

On Tue, 2012-07-17 at 09:13 +0200, Thomas Petazzoni wrote:
> Hello,
> 
> Le Thu, 12 Jul 2012 12:26:16 -0500,
> <dinguyen at altera.com> a écrit :
> 
> > diff --git a/arch/arm/boot/dts/socfpga_cyclone5.dts b/arch/arm/boot/dts/socfpga_cyclone5.dts
> > new file mode 100644
> > index 0000000..710c773
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/socfpga_cyclone5.dts
> > @@ -0,0 +1,118 @@
> > +/*
> > + *  Copyright (C) 2012 Altera Corporation <www.altera.com>
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > + * GNU General Public License for more details.
> > + *
> > + * You should have received a copy of the GNU General Public License
> > + * along with this program.  If not, see <http://www.gnu.org/licenses/>.
> > + */
> > +
> > +/dts-v1/;
> > +/include/ "socfpga.dtsi"
> > +
> > +/ {
> > +	model = "Altera SOCFPGA Cyclone V";
> > +	compatible = "altr,socfpga-cyclone5";
> > +
> > +	aliases {
> > +		ethernet0 = &gmac0;
> > +		serial0 = &uart0;
> > +		serial1 = &uart1;
> > +	};
> > +
> > +	chosen {
> > +		bootargs = "console=ttyS0,57600";
> > +	};
> > +
> > +	memory {
> > +		name = "memory";
> > +		device_type = "memory";
> > +		reg = <0x0 0x10000000>; /* 256MB */
> > +	};
> > +
> > +	soc {
> > +		amba {
> > +			compatible = "arm,amba-bus";
> > +			#address-cells = <1>;
> > +			#size-cells = <1>;
> > +			ranges;
> > +
> > +			pdma: pdma at ffe01000 {
> > +				compatible = "arm,pl330", "arm,primecell";
> > +				reg = <0xffe01000 0x1000>;
> > +				interrupts = <0 180 4>;
> > +			};
> > +		};
> > +
> > +		apb_periphs {
> > +			compatible = "simple-bus";
> > +			#address-cells = <1>;
> > +			#size-cells = <1>;
> > +			ranges;
> > +
> > +			uart0: uart at ffc02000 {
> > +				compatible = "snps,dw-apb-uart";
> > +				reg = <0xffc02000 0x1000>;
> > +				clock-frequency = <7372800>;
> > +				interrupts = <0 162 4>;
> > +				reg-shift = <2>;
> > +				reg-io-width = <4>;
> > +			};
> > +
> > +		timer0: timer at ffc08000 {
> > +				compatible = "snps,dw-apb-timer-sp";
> > +				interrupts = <0 167 4>;
> > +				clock-frequency = <200000000>;
> > +				reg = <0xffc08000 0x1000>;
> > +			};
> 
> There is an indentation problem here, the timer0 (and the following)
> should be at the same level as uart0.

Will fix..

> 
> Also, are all those peripherals (uarts, timers) really board-specific?
> I.e, are they synthesized on the FPGA part, or are they part of the ARM
> SoC, in which case they should be listed in the .dtsi and not in
> the .dts.

Agreed. The peripherals are just part of the ARM SoC. 
> 
> Best regards,
> 
> Thomas