Hi, > + clocks { [..] > + > + nic_clk: nic_clk { What does nic_clk stand for? If I had to guess, it has something to do with network. But.. > + compatible = "fixed-clock"; > + #clock-cells = <0>; > + clock-frequency = <200000000>; > + }; > + }; > + > + clks: clock-controller@e00c00a8 { > + compatible = "microchip,lan966x-gck"; > + #clock-cells = <1>; > + clocks = <&cpu_clk>, <&ddr_clk>, <&sys_clk>; > + clock-names = "cpu", "ddr", "sys"; > + reg = <0xe00c00a8 0x38>; > + }; > + > + timer { > + compatible = "arm,armv7-timer"; > + interrupt-parent = <&gic>; > + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>, > + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>, > + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>, > + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>; > + clock-frequency = <37500000>; > + arm,cpu-registers-not-fw-configured; > + }; > + > + soc { > + compatible = "simple-bus"; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + > + flx0: flexcom@e0040000 { > + compatible = "atmel,sama5d2-flexcom"; > + reg = <0xe0040000 0x100>; > + clocks = <&clks GCK_ID_FLEXCOM0>; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0xe0040000 0x800>; > + status = "disabled"; > + }; > + > + flx1: flexcom@e0044000 { > + compatible = "atmel,sama5d2-flexcom"; > + reg = <0xe0044000 0x100>; > + clocks = <&clks GCK_ID_FLEXCOM1>; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0xe0044000 0x800>; > + status = "disabled"; > + }; > + > + trng: trng@e0048000 { > + compatible = "atmel,at91sam9g45-trng"; > + reg = <0xe0048000 0x100>; > + clocks = <&nic_clk>; .. it is used here.. > + }; > + > + aes: aes@e004c000 { > + compatible = "atmel,at91sam9g46-aes"; > + reg = <0xe004c000 0x100>; > + interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>; > + dmas = <&dma0 AT91_XDMAC_DT_PERID(13)>, > + <&dma0 AT91_XDMAC_DT_PERID(12)>; > + dma-names = "rx", "tx"; > + clocks = <&nic_clk>; .. and here. and so on. So, is it some kind of internal clock? > + interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>; > + }; > + > + watchdog: watchdog@e0090000 { > + compatible = "snps,dw-wdt"; > + reg = <0xe0090000 0x1000>; > + interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>; > + clocks = <&nic_clk>; Btw. can we disable all nodes by default and enable them in the board dts files?