[PATCH] ARM64: dts: amlogic: Add hiu and periphs buses

[PATCH] ARM64: dts: amlogic: Add hiu and periphs buses

[Carlo Caione]

From: Carlo Caione <carlo-6IF/jdPJHihWk0Htik3J/w@public.gmane.org>

Add two new buses in the DTS: hiu and periphs buses.
In the Amlogic S905/GXBB SoC several devices (clock / eth / pin
controllers, etc...) are mapped under these two buses. Add them in the
DT before starting to add new devices.

Signed-off-by: Carlo Caione <carlo-6IF/jdPJHihWk0Htik3J/w@public.gmane.org>
---
 arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 832815d..3126f0c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -167,6 +167,22 @@
 			};
 		};
 
+		periphs: periphs@c8834000 {
+			compatible = "simple-bus";
+			reg = <0x0 0xc8834000 0x0 0x2000>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges = <0x0 0x0 0x0 0xc8834000 0x0 0x2000>;
+		};
+
+		hiubus: hiubus@c883c000 {
+			compatible = "simple-bus";
+			reg = <0x0 0xc883c000 0x0 0x2000>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges = <0x0 0x0 0x0 0xc883c000 0x0 0x2000>;
+		};
+
 		apb: apb@d0000000 {
 			compatible = "simple-bus";
 			reg = <0x0 0xd0000000 0x0 0x200000>;
-- 
1.9.1

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Re: [PATCH] ARM64: dts: amlogic: Add hiu and periphs buses

[Andreas Färber]

Am 03.04.2016 um 19:14 schrieb Carlo Caione:
> From: Carlo Caione <carlo-6IF/jdPJHihWk0Htik3J/w@public.gmane.org>
> 
> Add two new buses in the DTS: hiu and periphs buses.
> In the Amlogic S905/GXBB SoC several devices (clock / eth / pin
> controllers, etc...) are mapped under these two buses. Add them in the
> DT before starting to add new devices.
> 
> Signed-off-by: Carlo Caione <carlo-6IF/jdPJHihWk0Htik3J/w@public.gmane.org>
> ---
>  arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
> index 832815d..3126f0c 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
> @@ -167,6 +167,22 @@
>  			};
>  		};
>  
> +		periphs: periphs@c8834000 {
> +			compatible = "simple-bus";
> +			reg = <0x0 0xc8834000 0x0 0x2000>;
> +			#address-cells = <2>;
> +			#size-cells = <2>;
> +			ranges = <0x0 0x0 0x0 0xc8834000 0x0 0x2000>;
> +		};
> +
> +		hiubus: hiubus@c883c000 {
> +			compatible = "simple-bus";
> +			reg = <0x0 0xc883c000 0x0 0x2000>;
> +			#address-cells = <2>;
> +			#size-cells = <2>;
> +			ranges = <0x0 0x0 0x0 0xc883c000 0x0 0x2000>;
> +		};
> +
>  		apb: apb@d0000000 {
>  			compatible = "simple-bus";
>  			reg = <0x0 0xd0000000 0x0 0x200000>;

Looks sane, but where did you get that info from? The others I had found
in an iomap node or so but did not spot these.

Regards,
Andreas

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Re: [PATCH] ARM64: dts: amlogic: Add hiu and periphs buses

[Carlo Caione]

On Sun, Apr 3, 2016 at 7:19 PM, Andreas Färber <afaerber-l3A5Bk7waGM@public.gmane.org> wrote:
> Am 03.04.2016 um 19:14 schrieb Carlo Caione:
>
> Looks sane, but where did you get that info from? The others I had found
> in an iomap node or so but did not spot these.

For hiubus you can see the io_hiubus_base node in the gxbb_p201.dts DT file.
For the periphs bus is a bit more tricky. The only reasonable
information I found is oddly in
drivers/amlogic/hdmi/hdmi_tx_20/hw/reg_ops.c.

-- 
Carlo Caione
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