[PATCH v6 4/5] ARM: dts: microchip: add I3C controller
Claudiu Beznea
claudiu.beznea at tuxon.dev
Sat May 16 09:07:10 PDT 2026
Hi, Manikandan,
On 5/7/26 11:48, Manikandan Muralidharan wrote:
> From: Durai Manickam KR <durai.manickamkr at microchip.com>
>
> Add I3C controller for sama7d65 SoC.
>
> Signed-off-by: Durai Manickam KR <durai.manickamkr at microchip.com>
> Signed-off-by: Manikandan Muralidharan <manikandan.m at microchip.com>
> ---
> Changes in v3:
> - Remove clock-names property as driver enables the clk in bulk
>
> arch/arm/boot/dts/microchip/sama7d65.dtsi | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi
> index 67253bbc08df..ec200848c153 100644
> --- a/arch/arm/boot/dts/microchip/sama7d65.dtsi
> +++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi
> @@ -1055,5 +1055,13 @@ gic: interrupt-controller at e8c11000 {
> #address-cells = <0>;
> interrupt-controller;
> };
> +
> + i3c: i3c at e9000000 {
> + compatible = "microchip,sama7d65-i3c-hci";
> + reg = <0xe9000000 0x300>;
From manual at [1] I see the size of I3CC region is 0x1000. Unless that is
wrong I think we should use 0x1000 to properly describe de HW. Please let me
know and I can do it while applying.
Thank you,
Claudiu
[1]
https://ww1.microchip.com/downloads/aemDocuments/documents/MPU32/ProductDocuments/DataSheets/SAMA7D6-Series-Data-Sheet-DS60001851.pdf
> + interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&pmc PMC_TYPE_PERIPHERAL 105>, <&pmc PMC_TYPE_GCK 105>;
> + status = "disabled";
> + };
> };
> };
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