ARM: dts: qcom: msm8226: Add BAM DMUX Ethernet/IP device

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

Reviewed-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Signed-off-by: Luca Weiss <luca@lucaweiss.eu>
Link: https://lore.kernel.org/r/20250217-msm8226-modem-v5-10-2bc74b80e0ae@lucaweiss.eu
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm/boot/dts/qcom/qcom-msm8226.dtsi b/arch/arm/boot/dts/qcom/qcom-msm8226.dtsi
index 662911f4cf163c3a5bdd1a4d5d79713074accc20..32defb08b9094956a04f490015383c263901a907 100644 (file)
--- a/arch/arm/boot/dts/qcom/qcom-msm8226.dtsi
+++ b/arch/arm/boot/dts/qcom/qcom-msm8226.dtsi
@@ -916,6 +916,18 @@
                        #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;
+               };
+
                modem: remoteproc@fc880000 {
                        compatible = "qcom,msm8226-mss-pil";
                        reg = <0xfc880000 0x4040>,
@@ -959,6 +971,20 @@
 
                        status = "disabled";
 
+                       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>;