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Message-ID: <1450508599.8428.3.camel@gmail.com>
Date: Sat, 19 Dec 2015 10:03:19 +0300
From: Sergei Ianovich <ynvich@...il.com>
To: Rob Herring <robh@...nel.org>
Cc: linux-kernel@...r.kernel.org,
Linus Walleij <linus.walleij@...aro.org>,
Arnd Bergmann <arnd@...db.de>,
Thomas Gleixner <tglx@...utronix.de>,
Jason Cooper <jason@...edaemon.net>,
Marc Zyngier <marc.zyngier@....com>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@...r.kernel.org>
Subject: Re: [PATCH v5] arm: pxa: support ICP DAS LP-8x4x FPGA irq
On Fri, 2015-12-18 at 21:58 -0600, Rob Herring wrote:
> On Tue, Dec 15, 2015 at 10:26:21PM +0300, Sergei Ianovich wrote:
> > +Example:
> > +
> > + fpga: fpga@...00006 {
>
> Nothing else in the fpga? In any case, this node should be named
> interrupt-controller@...00006.
>
> > + compatible = "icpdas,irq-lp8x4x";
>
> As pointed out in the uart binding, don't use wildcards here.
>
> > + reg = <0x17000006 0x16>;
> > + interrupt-parent = <&gpio>;
> > + interrupts = <3 IRQ_TYPE_EDGE_RISING>;
> > + #interrupt-cells = <1>;
> > + interrupt-controller;
> > + status = "okay";
> > + };
> > +
> > + uart@...09050 {
> > + compatible = "icpdas,uart-lp8x4x";
> > + reg = <0x17009050 0x10
> > + 0x17009030 0x02>;
> > + interrupt-parent = <&fpga>;
> > + interrupts = <13>;
> > + status = "okay";
> > + };
That was just an example. The actual binding in LP-8x4x is bigger:
fpga@5 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 5 0x3000000 0x10000>;
interrupt-parent = <&fpgairq>;
rtc@...c {
compatible = "dallas,rtc-ds1302";
reg = <0x901c 0x1>;
status = "okay";
};
sram@...0 {
compatible = "icpdas,sram-lp8x4x";
reg = <0xa000 0x1000
0x901e 0x1>;
partitions {
#address-cells = <1>;
#size-cells = <1>;
};
};
fpgairq: irq@...6 {
compatible = "icpdas,irq-lp8x4x";
reg = <0x9006 0x16>;
interrupt-parent = <&gpio>;
interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
#interrupt-cells = <1>;
interrupt-controller;
status = "okay";
};
uart@...0 {
compatible = "icpdas,uart-lp8x4x";
reg = <0x9050 0x10
0x9030 0x02>;
interrupts = <13>;
status = "okay";
};
uart@...0 {
compatible = "icpdas,uart-lp8x4x";
reg = <0x9060 0x10
0x9032 0x02>;
interrupts = <14>;
status = "okay";
};
uart@...0 {
compatible = "icpdas,uart-lp8x4x";
reg = <0x9070 0x10
0x9034 0x02>;
interrupts = <15>;
status = "okay";
};
backplane {
compatible = "icpdas,backplane-lp8x4x";
reg = <0x0 0x2
0x1000 0x10
0x2000 0x10
0x3000 0x10
0x4000 0x10
0x5000 0x10
0x6000 0x10
0x7000 0x10
0x8000 0x10
0x9002 0x2
0x9004 0x2
0x9046 0x2>;
eeprom-gpios = <&gpio 4 0>;
};
};
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