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1NVIDIA Tegra210 Boot and Power Management Processor (BPMP)2 3The Boot and Power Management Processor (BPMP) is a co-processor found4in Tegra210 SoC. It is designed to handle the early stages of the boot5process as well as to assisting in entering deep low power state6(suspend to ram), and also offloading DRAM memory clock scaling on7some platforms. The binding document defines the resources that would8be used by the BPMP T210 firmware driver, which can create the9interprocessor communication (IPC) between the CPU and BPMP.10 11Required properties:12- compatible13 Array of strings14 One of:15 - "nvidia,tegra210-bpmp"16- reg: physical base address and length for HW synchornization primitives17 1) base address and length to Tegra 'atomics' hardware18 2) base address and length to Tegra 'semaphore' hardware19- interrupts: specifies the interrupt number for receiving messages ("rx")20 and for triggering messages ("tx")21 22Optional properties:23- #clock-cells : Should be 1 for platforms where DRAM clock control is24 offloaded to bpmp.25 26Example:27 28bpmp@70016000 {29 compatible = "nvidia,tegra210-bpmp";30 reg = <0x0 0x70016000 0x0 0x200031 0x0 0x60001000 0x0 0x1000>;32 interrupts = <GIC_SPI 6 IRQ_TYPE_EDGE_RISING>,33 <GIC_SPI 4 IRQ_TYPE_EDGE_RISING>;34 interrupt-names = "tx", "rx";35};36