@@ -121,10 +121,32 @@
opp-supported-hw = <0x8>, <0x7>;
clock-latency-ns = <150000>;
};
};
+ ddrc_opp_table: ddrc-opp-table {
+ compatible = "operating-points-v2";
+
+ opp-25M {
+ opp-hz = /bits/ 64 <25000000>;
+ };
+ opp-750M {
+ opp-hz = /bits/ 64 <750000000>;
+ };
+ };
+
+ noc_opp_table: noc-opp-table {
+ compatible = "operating-points-v2";
+
+ opp-150M {
+ opp-hz = /bits/ 64 <150000000>;
+ };
+ opp-750M {
+ opp-hz = /bits/ 64 <750000000>;
+ };
+ };
+
memory@40000000 {
device_type = "memory";
reg = <0x0 0x40000000 0 0x80000000>;
};
@@ -748,10 +770,35 @@
status = "disabled";
};
};
+ pl301_main: nic@32000000 {
+ compatible = "fsl,imx8mm-nic";
+ reg = <0x32000000 0x100000>;
+ clocks = <&clk IMX8MM_CLK_MAIN_AXI>;
+ };
+
+ pl301_wakeup: nic@32100000 {
+ compatible = "fsl,imx8mm-nic";
+ reg = <0x32100000 0x100000>;
+ clocks = <&clk IMX8MM_CLK_AHB>;
+ };
+
+ pl301_enet: nic@32400000 {
+ compatible = "fsl,imx8mm-nic";
+ reg = <0x32400000 0x100000>;
+ clocks = <&clk IMX8MM_CLK_ENET_AXI>;
+ };
+
+ noc: noc@32700000 {
+ compatible = "fsl,imx8mm-noc";
+ reg = <0x32700000 0x100000>;
+ clocks = <&clk IMX8MM_CLK_NOC>;
+ operating-points-v2 = <&noc_opp_table>;
+ };
+
aips4: bus@32c00000 {
compatible = "fsl,aips-bus", "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x32c00000 0x32c00000 0x400000>;
@@ -835,7 +882,14 @@
<0x38880000 0xc0000>; /* GICR (RD_base + SGI_base) */
#interrupt-cells = <3>;
interrupt-controller;
interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
};
+
+ ddrc: dram-controller@3d400000 {
+ compatible = "fsl,imx8mm-ddrc";
+ reg = <0x3d400000 0x400000>;
+ clocks = <&clk IMX8MM_CLK_DRAM>;
+ operating-points-v2 = <&ddrc_opp_table>;
+ };
};
};
The imx8mm has multiple buses which can be scaled with some degree of independence. Expose them as devfreq devices for userspace scaling. It shouldn't be possible to get the system in a non-working state this way. It is primarily aimed at testing and fine performance tuning. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> --- arch/arm64/boot/dts/freescale/imx8mm.dtsi | 54 +++++++++++++++++++++++ 1 file changed, 54 insertions(+)