diff mbox

[v2,16/17] sh: I/O DATA HDL-U (a.k.a. landisk) Device Tree

Message ID 1465714475-24111-17-git-send-email-ysato@users.sourceforge.jp (mailing list archive)
State New, archived
Headers show

Commit Message

Yoshinori Sato June 12, 2016, 6:54 a.m. UTC
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/sh/boot/dts/landisk.dts | 150 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 arch/sh/boot/dts/landisk.dts

Comments

Geert Uytterhoeven June 13, 2016, 8:13 a.m. UTC | #1
Hi Sato-san,

On Sun, Jun 12, 2016 at 8:54 AM, Yoshinori Sato
<ysato@users.sourceforge.jp> wrote:
> --- /dev/null
> +++ b/arch/sh/boot/dts/landisk.dts
> @@ -0,0 +1,150 @@

> +        pllclk: pllclk {
> +                compatible = "renesas,sh7750-pll-clock";
> +                clocks = <&oclk>;
> +                #clock-cells = <0>;
> +               renesas,mult = <12>;
> +                reg = <0xffc00000 2>, <0xffc00008 4>;
> +        };
> +        iclk: iclk {
> +                compatible = "renesas,sh7750-div-clock";
> +                clocks = <&pllclk>;
> +                #clock-cells = <0>;
> +                reg = <0xffc00000 2>;
> +               renesas,offset = <6>;
> +               clock-output-names = "ick";

clock-output-names is deprecated for clocks providing a single output.

> +        };
> +        bclk: bclk {
> +                compatible = "renesas,sh7750-div-clock";
> +                clocks = <&pllclk>;
> +                #clock-cells = <0>;
> +                reg = <0xffc00000 2>;
> +               renesas,offset = <3>;
> +               clock-output-names = "bck";
> +        };
> +        fclk: fclk {
> +                compatible = "renesas,sh7750-div-clock";
> +                clocks = <&pllclk>;
> +                #clock-cells = <0>;
> +                reg = <0xffc00000 2>;
> +               renesas,offset = <0>;
> +               clock-output-names = "fck";
> +        };

I think it will be much easier for maintenance and code reuse to just have a
single "cpg" node that's compatible with "renesas,sh7750-cpg", covering all
CPG registers. Especially since the various clocks use the same registers.

Cfr. drivers/clk/renesas/cpg-mssr.c.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-sh" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Yoshinori Sato June 13, 2016, 2:23 p.m. UTC | #2
On Mon, 13 Jun 2016 17:13:37 +0900,
Geert Uytterhoeven wrote:
> 
> Hi Sato-san,
> 
> On Sun, Jun 12, 2016 at 8:54 AM, Yoshinori Sato
> <ysato@users.sourceforge.jp> wrote:
> > --- /dev/null
> > +++ b/arch/sh/boot/dts/landisk.dts
> > @@ -0,0 +1,150 @@
> 
> > +        pllclk: pllclk {
> > +                compatible = "renesas,sh7750-pll-clock";
> > +                clocks = <&oclk>;
> > +                #clock-cells = <0>;
> > +               renesas,mult = <12>;
> > +                reg = <0xffc00000 2>, <0xffc00008 4>;
> > +        };
> > +        iclk: iclk {
> > +                compatible = "renesas,sh7750-div-clock";
> > +                clocks = <&pllclk>;
> > +                #clock-cells = <0>;
> > +                reg = <0xffc00000 2>;
> > +               renesas,offset = <6>;
> > +               clock-output-names = "ick";
> 
> clock-output-names is deprecated for clocks providing a single output.
> 
> > +        };
> > +        bclk: bclk {
> > +                compatible = "renesas,sh7750-div-clock";
> > +                clocks = <&pllclk>;
> > +                #clock-cells = <0>;
> > +                reg = <0xffc00000 2>;
> > +               renesas,offset = <3>;
> > +               clock-output-names = "bck";
> > +        };
> > +        fclk: fclk {
> > +                compatible = "renesas,sh7750-div-clock";
> > +                clocks = <&pllclk>;
> > +                #clock-cells = <0>;
> > +                reg = <0xffc00000 2>;
> > +               renesas,offset = <0>;
> > +               clock-output-names = "fck";
> > +        };
> 
> I think it will be much easier for maintenance and code reuse to just have a
> single "cpg" node that's compatible with "renesas,sh7750-cpg", covering all
> CPG registers. Especially since the various clocks use the same registers.
> 
> Cfr. drivers/clk/renesas/cpg-mssr.c.

OK.
I'll try.

> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds
diff mbox

Patch

diff --git a/arch/sh/boot/dts/landisk.dts b/arch/sh/boot/dts/landisk.dts
new file mode 100644
index 0000000..23396a0
--- /dev/null
+++ b/arch/sh/boot/dts/landisk.dts
@@ -0,0 +1,150 @@ 
+#include <dt-bindings/interrupt-controller/sh_intc.h>
+
+/dts-v1/;
+/ {
+	model = "I/O DATA HDL-U";
+	compatible = "iodata,hdl-u";
+	#address-cells = <1>;
+	#size-cells = <1>;
+	interrupt-parent = <&shintc>;
+	chosen {
+		stdout-path = &sci1;
+		bootargs = "console=ttySC1,115200";
+	};
+	aliases {
+		serial0 = &sci0;
+		serial1 = &sci1;
+	};
+
+	oclk: oscillator {
+                #clock-cells = <0>;
+                compatible = "fixed-clock";
+                clock-frequency = <22222222>;
+        };
+        pllclk: pllclk {
+                compatible = "renesas,sh7750-pll-clock";
+                clocks = <&oclk>;
+                #clock-cells = <0>;
+		renesas,mult = <12>;
+                reg = <0xffc00000 2>, <0xffc00008 4>;
+        };
+        iclk: iclk {
+                compatible = "renesas,sh7750-div-clock";
+                clocks = <&pllclk>;
+                #clock-cells = <0>;
+                reg = <0xffc00000 2>;
+		renesas,offset = <6>;
+		clock-output-names = "ick";
+        };
+        bclk: bclk {
+                compatible = "renesas,sh7750-div-clock";
+                clocks = <&pllclk>;
+                #clock-cells = <0>;
+                reg = <0xffc00000 2>;
+		renesas,offset = <3>;
+		clock-output-names = "bck";
+        };
+        fclk: fclk {
+                compatible = "renesas,sh7750-div-clock";
+                clocks = <&pllclk>;
+                #clock-cells = <0>;
+                reg = <0xffc00000 2>;
+		renesas,offset = <0>;
+		clock-output-names = "fck";
+        };
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu@0 {
+		      compatible = "renesas,sh4", "renesas,sh";
+		      clock-frequency = <266666666>;
+		};
+	};
+	memory@0c000000 {
+		device_type = "memory";
+		reg = <0x0c000000 0x4000000>;
+	};
+	shintc: interrupt-controller@ffd00000 {
+		compatible = "renesas,sh7751-intc";
+		#interrupt-cells = <2>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		interrupt-controller;
+		reg = <0xffd00000 14>, <0xfe080000 128>;
+
+	};
+	cpldintc: cpld@b0000000 {
+		compatible = "iodata,landisk-intc";
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		reg = <0xb0000000 8>;
+		interrupt-map=<0 &shintc 0 0>, <1 &shintc 1 0>,
+		              <2 &shintc 2 0>, <3 &shintc 3 0>,
+		              <4 &shintc 4 0>, <5 &shintc 5 0>,
+		              <6 &shintc 6 0>, <7 &shintc 7 0>;
+	};
+	sci0: serial@ffe00000 {
+		compatible = "renesas,scif";
+		reg = <0xffe00000 0x20>;
+		interrupts = <evt2irq(0x4e0) 0
+		              evt2irq(0x500) 0
+		              evt2irq(0x540) 0
+		              evt2irq(0x520) 0>;
+		clocks = <&fclk>;
+		clock-names = "fck";
+	};
+	sci1: serial@ffe80000 {
+		compatible = "renesas,scif";
+		reg = <0xffe80000 0x100>;
+		interrupts = <evt2irq(0x700) 0
+			      evt2irq(0x720) 0
+			      evt2irq(0x760) 0
+			      evt2irq(0x740) 0>;
+		clocks = <&fclk>;
+		clock-names = "fck";
+	};
+	tmu: timer@ffd80000 {
+		compatible = "renesas,tmu";
+		reg = <0xffd80000 12>;
+		interrupts = <evt2irq(0x400) 0
+			      evt2irq(0x420) 0
+			      evt2irq(0x440) 0>;
+		clocks = <&fclk>;
+		clock-names = "fck";
+		renesas,channels-mask = <0x03>;
+	};
+
+	pci: pci-controller@fe200000 {
+		compatible = "renesas,sh7751-pci", "iodata,landisk";
+		device_type = "pci";
+		bus-range = <0 0>;
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <0x02000000 0x00000000 0xfd000000 0xfd000000 0x00000000 0x01000000>,
+		         <0x01000000 0x00000000 0xfe240000 0x00000000 0x00000000 0x00040000>;
+		reg = <0xfe200000 0x0400>,
+		      <0x0c000000 0x04000000>,
+		      <0xff800000 0x0030>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0x1800 0 7>;
+		interrupt-map = <0x0000 0 1 &cpldintc evt2irq(0x2a0) 0
+		                 0x0000 0 2 &cpldintc evt2irq(0x2c0) 0
+		                 0x0000 0 3 &cpldintc evt2irq(0x2e0) 0
+		                 0x0000 0 4 &cpldintc evt2irq(0x300) 0
+
+		                 0x0800 0 1 &cpldintc evt2irq(0x2c0) 0
+		                 0x0800 0 2 &cpldintc evt2irq(0x2e0) 0
+		                 0x0800 0 3 &cpldintc evt2irq(0x300) 0
+		                 0x0800 0 4 &cpldintc evt2irq(0x2a0) 0
+
+		                 0x1000 0 1 &cpldintc evt2irq(0x2e0) 0
+		                 0x1000 0 2 &cpldintc evt2irq(0x300) 0
+		                 0x1000 0 3 &cpldintc evt2irq(0x2a0) 0
+		                 0x1000 0 4 &cpldintc evt2irq(0x2c0) 0
+
+		                 0x1800 0 1 &cpldintc evt2irq(0x300) 0
+		                 0x1800 0 2 &cpldintc evt2irq(0x2a0) 0
+		                 0x1800 0 3 &cpldintc evt2irq(0x2c0) 0
+		                 0x1800 0 4 &cpldintc evt2irq(0x2e0) 0>;
+	};
+};