1Devicetree binding for regmap 2 3Optional properties: 4 5 little-endian, 6 big-endian, 7 native-endian: See common-properties.txt for a definition 8 9Note: 10Regmap defaults to little-endian register access on MMIO based 11devices, this is by far the most common setting. On CPU 12architectures that typically run big-endian operating systems 13(e.g. PowerPC), registers can be defined as big-endian and must 14be marked that way in the devicetree. 15 16On SoCs that can be operated in both big-endian and little-endian 17modes, with a single hardware switch controlling both the endianness 18of the CPU and a byteswap for MMIO registers (e.g. many Broadcom MIPS 19chips), "native-endian" is used to allow using the same device tree 20blob in both cases. 21 22Examples: 23Scenario 1 : a register set in big-endian mode. 24dev: dev@40031000 { 25 compatible = "syscon"; 26 reg = <0x40031000 0x1000>; 27 big-endian; 28 ... 29}; 30