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

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

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220517203450.1155696-1-luca@z3ntu.xyz

diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
index df49be6..3ebcf08 100644 (file)
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
@@ -1146,6 +1146,18 @@
                        #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;
+               };
+
                remoteproc_mss: remoteproc@fc880000 {
                        compatible = "qcom,msm8974-mss-pil";
                        reg = <0xfc880000 0x100>, <0xfc820000 0x020>;
@@ -1180,6 +1192,20 @@
                                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>;