1Atmel system registers 2 3Chipid required properties: 4- compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid" 5 "microchip,sama7d65-chipid" 6- reg : Should contain registers location and length 7 8PIT Timer required properties: 9- compatible: Should be "atmel,at91sam9260-pit" 10- reg: Should contain registers location and length 11- interrupts: Should contain interrupt for the PIT which is the IRQ line 12 shared across all System Controller members. 13 14PIT64B Timer required properties: 15- compatible: Should be "microchip,sam9x60-pit64b" or 16 "microchip,sam9x7-pit64b", "microchip,sam9x60-pit64b" 17 "microchip,sama7d65-pit64b", "microchip,sam9x60-pit64b" 18- reg: Should contain registers location and length 19- interrupts: Should contain interrupt for PIT64B timer 20- clocks: Should contain the available clock sources for PIT64B timer. 21 22System Timer (ST) required properties: 23- compatible: Should be "atmel,at91rm9200-st", "syscon", "simple-mfd" 24- reg: Should contain registers location and length 25- interrupts: Should contain interrupt for the ST which is the IRQ line 26 shared across all System Controller members. 27- clocks: phandle to input clock. 28Its subnodes can be: 29- watchdog: compatible should be "atmel,at91rm9200-wdt" 30 31RAMC SDRAM/DDR Controller required properties: 32- compatible: Should be "atmel,at91rm9200-sdramc", "syscon" or 33 "atmel,at91sam9260-sdramc" or 34 "atmel,at91sam9g45-ddramc" or 35 "atmel,sama5d3-ddramc" or 36 "microchip,sam9x60-ddramc" or 37 "microchip,sama7g5-uddrc" or 38 "microchip,sama7d65-uddrc", "microchip,sama7g5-uddrc" or 39 "microchip,sam9x7-ddramc", "atmel,sama5d3-ddramc". 40- reg: Should contain registers location and length 41 42Examples: 43 44 ramc0: ramc@ffffe800 { 45 compatible = "atmel,at91sam9g45-ddramc"; 46 reg = <0xffffe800 0x200>; 47 }; 48 49