Hi, i want to add an sram node to arch/arm/boot/dts/imx28.dtsi. According to the reference manual [1] the On-Chip RAM is connected to AHB, start address 0 and has a size of 128 KB. So i modified the imx28.dtsi based on the patch below. Unfortunately the dtc give me some strang errors: ERROR (duplicate_label): Duplicate label 'mac0' on /ahb@80080000/ethernet@800f0000 and /ahb@00000000/ethernet@800f0000 ERROR: Input tree has errors, aborting (use -f to force output) What's wrong with my patch or does it reveal another issue? Regards Stefan [1] - http://cache.freescale.com/files/dsp/doc/ref_manual/MCIMX28RM.pdf i.MX28 Applications Processor Reference Manual, Rev. 2, 08/2013 Chapter 4.1 Memory Map Overview -------------------------->8--------------------------------------- --- a/arch/arm/boot/dts/imx28.dtsi +++ b/arch/arm/boot/dts/imx28.dtsi @@ -1311,13 +1311,18 @@ }; }; - ahb@80080000 { + ahb@00000000 { compatible = "simple-bus"; #address-cells = <1>; #size-cells = <1>; - reg = <0x80080000 0x80000>; + reg = <0x00000000 0x20000>, <0x80080000 0x80000>; ranges; + ocram: sram@00000000 { + compatible = "mmio-sram"; + reg = <0x00000000 0x20000>; + }; + usb0: usb@80080000 { compatible = "fsl,imx28-usb", "fsl,imx27-usb"; reg = <0x80080000 0x10000>;