* Re: [PATCH] arm64: dts: ti: k3-am62a7: Add MCU MCAN nodes
[not found] <20230724183844.635319-1-jm@ti.com>
@ 2023-08-02 5:14 ` Nishanth Menon
0 siblings, 0 replies; only message in thread
From: Nishanth Menon @ 2023-08-02 5:14 UTC (permalink / raw)
To: Judith Mendez
Cc: Vignesh Raghavendra, Tero Kristo, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, linux-arm-kernel, devicetree,
linux-kernel
On 13:38-20230724, Judith Mendez wrote:
> On AM62ax there are no hardware interrupts routed to A53 GIC
> interrupt controller for MCU MCAN IPs, so MCU MCAN nodes were
> omitted from MCU dtsi.
>
> Timer polling was introduced in commits [1][2] enabling 3x MCAN
> on AM62ax, so now add MCU MCAN nodes to the mcu dtsi for the Cortex A53.
>
> [1] commit b382380c0d2d ("can: m_can: Add hrtimer to generate software interrupt")
> [2] commit bb410c03b999 ("dt-bindings: net: can: Remove interrupt properties for MCAN")
>
> Signed-off-by: Judith Mendez <jm@ti.com>
> ---
> arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
> index 04599762c2b7..3fca702e7f2d 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi
> @@ -143,4 +143,28 @@ mcu_rti0: watchdog@4880000 {
> /* Tightly coupled to M4F */
> status = "reserved";
> };
> +
> + mcu_mcan0: can@4e00000 {
s/4e00000/4e08000
> + compatible = "bosch,m_can";
> + reg = <0x00 0x4e08000 0x00 0x200>,
> + <0x00 0x4e00000 0x00 0x8000>;
> + reg-names = "m_can", "message_ram";
> + power-domains = <&k3_pds 188 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&k3_clks 188 6>, <&k3_clks 188 1>;
> + clock-names = "hclk", "cclk";
> + bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> + status = "disabled";
> + };
> +
> + mcu_mcan1: can@4e10000 {
s/4e10000/4e18000
> + compatible = "bosch,m_can";
> + reg = <0x00 0x4e18000 0x00 0x200>,
> + <0x00 0x4e10000 0x00 0x8000>;
> + reg-names = "m_can", "message_ram";
> + power-domains = <&k3_pds 189 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&k3_clks 189 6>, <&k3_clks 189 1>;
> + clock-names = "hclk", "cclk";
> + bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> + status = "disabled";
> + };
> };
> --
> 2.34.1
>
--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
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