1/ { 2 cpuapp_sram@20017000 { 3 compatible = "zephyr,memory-region", "mmio-sram"; 4 reg = <0x20017000 DT_SIZE_K(4)>; 5 zephyr,memory-region = "RetainedMem"; 6 status = "okay"; 7 8 retainedmem0: retainedmem { 9 compatible = "zephyr,retained-ram"; 10 status = "okay"; 11 }; 12 }; 13 14 aliases { 15 retainedmemtestdevice = &retainedmem0; 16 }; 17}; 18 19&cpuapp_sram { 20 /* Shrink SRAM size to avoid overlap with retained memory region: 21 * 96 - 4 = 92KB = 0x17000 22 */ 23 reg = <0x20000000 0x17000>; 24 ranges = <0x0 0x20000000 0x17000>; 25}; 26