[PATCH] ARM: dts: qcom: msm8974: Add BAM DMUX Ethernet/IP device

[PATCH] ARM: dts: qcom: msm8974: Add BAM DMUX Ethernet/IP device

[Luca Weiss]

BAM DMUX is used as the network interface to the modem.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
---
 arch/arm/boot/dts/qcom-msm8974.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
index 814ad0b46232..ffa6f874917a 100644
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
@@ -1146,6 +1146,18 @@ spmi_bus: spmi@fc4cf000 {
 			#interrupt-cells = <4>;
 		};
 
+		bam_dmux_dma: dma-controller@fc834000 {
+			compatible = "qcom,bam-v1.4.0";
+			reg = <0xfc834000 0x7000>;
+			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+			#dma-cells = <1>;
+			qcom,ee = <0>;
+
+			num-channels = <6>;
+			qcom,num-ees = <1>;
+			qcom,powered-remotely;
+		};
+
 		remoteproc_mss: remoteproc@fc880000 {
 			compatible = "qcom,msm8974-mss-pil";
 			reg = <0xfc880000 0x100>, <0xfc820000 0x020>;
@@ -1180,6 +1192,20 @@ mpss {
 				memory-region = <&mpss_region>;
 			};
 
+			bam_dmux: bam-dmux {
+				compatible = "qcom,bam-dmux";
+
+				interrupt-parent = <&modem_smsm>;
+				interrupts = <1 IRQ_TYPE_EDGE_BOTH>, <11 IRQ_TYPE_EDGE_BOTH>;
+				interrupt-names = "pc", "pc-ack";
+
+				qcom,smem-states = <&apps_smsm 1>, <&apps_smsm 11>;
+				qcom,smem-state-names = "pc", "pc-ack";
+
+				dmas = <&bam_dmux_dma 4>, <&bam_dmux_dma 5>;
+				dma-names = "tx", "rx";
+			};
+
 			smd-edge {
 				interrupts = <GIC_SPI 25 IRQ_TYPE_EDGE_RISING>;
 
-- 
2.36.0

Re: [PATCH] ARM: dts: qcom: msm8974: Add BAM DMUX Ethernet/IP device

[Stephan Gerhold]

On Tue, May 17, 2022 at 10:34:51PM +0200, Luca Weiss wrote:
> BAM DMUX is used as the network interface to the modem.
> 
> Signed-off-by: Luca Weiss <luca@z3ntu.xyz>

Thanks for sending this patch!

Reviewed-by: Stephan Gerhold <stephan@gerhold.net>

> ---
>  arch/arm/boot/dts/qcom-msm8974.dtsi | 26 ++++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
> index 814ad0b46232..ffa6f874917a 100644
> --- a/arch/arm/boot/dts/qcom-msm8974.dtsi
> +++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
> @@ -1146,6 +1146,18 @@ spmi_bus: spmi@fc4cf000 {
>  			#interrupt-cells = <4>;
>  		};
>  
> +		bam_dmux_dma: dma-controller@fc834000 {
> +			compatible = "qcom,bam-v1.4.0";
> +			reg = <0xfc834000 0x7000>;
> +			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
> +			#dma-cells = <1>;
> +			qcom,ee = <0>;
> +
> +			num-channels = <6>;
> +			qcom,num-ees = <1>;
> +			qcom,powered-remotely;
> +		};
> +
>  		remoteproc_mss: remoteproc@fc880000 {
>  			compatible = "qcom,msm8974-mss-pil";
>  			reg = <0xfc880000 0x100>, <0xfc820000 0x020>;
> @@ -1180,6 +1192,20 @@ mpss {
>  				memory-region = <&mpss_region>;
>  			};
>  
> +			bam_dmux: bam-dmux {
> +				compatible = "qcom,bam-dmux";
> +
> +				interrupt-parent = <&modem_smsm>;
> +				interrupts = <1 IRQ_TYPE_EDGE_BOTH>, <11 IRQ_TYPE_EDGE_BOTH>;
> +				interrupt-names = "pc", "pc-ack";
> +
> +				qcom,smem-states = <&apps_smsm 1>, <&apps_smsm 11>;
> +				qcom,smem-state-names = "pc", "pc-ack";
> +
> +				dmas = <&bam_dmux_dma 4>, <&bam_dmux_dma 5>;
> +				dma-names = "tx", "rx";
> +			};
> +
>  			smd-edge {
>  				interrupts = <GIC_SPI 25 IRQ_TYPE_EDGE_RISING>;
>  
> -- 
> 2.36.0
> 

Re: (subset) [PATCH] ARM: dts: qcom: msm8974: Add BAM DMUX Ethernet/IP device

[Bjorn Andersson]

On Tue, 17 May 2022 22:34:51 +0200, Luca Weiss wrote:
> BAM DMUX is used as the network interface to the modem.
> 
> 

Applied, thanks!

[1/1] ARM: dts: qcom: msm8974: Add BAM DMUX Ethernet/IP device
      commit: 4eb1560259de4fd5f89ec5e7faf5d4c6a83bae9c

Best regards,
-- 
Bjorn Andersson <bjorn.andersson@linaro.org>