3 Chipid required properties:
4 - compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid"
5 - reg : Should contain registers location and length
7 PIT Timer required properties:
8 - compatible: Should be "atmel,at91sam9260-pit"
9 - reg: Should contain registers location and length
10 - interrupts: Should contain interrupt for the PIT which is the IRQ line
11 shared across all System Controller members.
13 PIT64B Timer required properties:
14 - compatible: Should be "microchip,sam9x60-pit64b"
15 - reg: Should contain registers location and length
16 - interrupts: Should contain interrupt for PIT64B timer
17 - clocks: Should contain the available clock sources for PIT64B timer.
19 System Timer (ST) required properties:
20 - compatible: Should be "atmel,at91rm9200-st", "syscon", "simple-mfd"
21 - reg: Should contain registers location and length
22 - interrupts: Should contain interrupt for the ST which is the IRQ line
23 shared across all System Controller members.
24 - clocks: phandle to input clock.
26 - watchdog: compatible should be "atmel,at91rm9200-wdt"
28 RSTC Reset Controller required properties:
29 - compatible: Should be "atmel,<chip>-rstc".
30 <chip> can be "at91sam9260", "at91sam9g45", "sama5d3" or "samx7"
31 it also can be "microchip,sam9x60-rstc"
32 - reg: Should contain registers location and length
33 - clocks: phandle to input clock.
38 compatible = "atmel,at91sam9260-rstc";
39 reg = <0xfffffd00 0x10>;
43 RAMC SDRAM/DDR Controller required properties:
44 - compatible: Should be "atmel,at91rm9200-sdramc", "syscon"
45 "atmel,at91sam9260-sdramc",
46 "atmel,at91sam9g45-ddramc",
47 "atmel,sama5d3-ddramc",
48 "microchip,sam9x60-ddramc",
49 "microchip,sama7g5-uddrc"
50 - reg: Should contain registers location and length
54 ramc0: ramc@ffffe800 {
55 compatible = "atmel,at91sam9g45-ddramc";
56 reg = <0xffffe800 0x200>;
59 RAMC PHY Controller required properties:
60 - compatible: Should be "microchip,sama7g5-ddr3phy", "syscon"
61 - reg: Should contain registers location and length
65 ddr3phy: ddr3phy@e3804000 {
66 compatible = "microchip,sama7g5-ddr3phy", "syscon";
67 reg = <0xe3804000 0x1000>;
70 SHDWC Shutdown Controller
73 - compatible: Should be "atmel,<chip>-shdwc".
74 <chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
75 - reg: Should contain registers location and length
76 - clocks: phandle to input clock.
79 - atmel,wakeup-mode: String, operation mode of the wakeup mode.
80 Supported values are: "none", "high", "low", "any".
81 - atmel,wakeup-counter: Counter on Wake-up 0 (between 0x0 and 0xf).
83 optional at91sam9260 properties:
84 - atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
86 optional at91sam9rl properties:
87 - atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
88 - atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
90 optional at91sam9x5 properties:
91 - atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up.
96 compatible = "atmel,at91sam9260-shdwc";
97 reg = <0xfffffd10 0x10>;
101 SHDWC SAMA5D2-Compatible Shutdown Controller
106 - compatible: should be "atmel,sama5d2-shdwc", "microchip,sam9x60-shdwc" or
107 "microchip,sama7g5-shdwc"
108 - reg: should contain registers location and length
109 - clocks: phandle to input clock.
110 - #address-cells: should be one. The cell is the wake-up input index.
111 - #size-cells: should be zero.
115 - debounce-delay-us: minimum wake-up inputs debouncer period in
116 microseconds. It's usually a board-related property.
117 - atmel,wakeup-rtc-timer: boolean to enable Real-Time Clock wake-up.
119 optional microchip,sam9x60-shdwc or microchip,sama7g5-shdwc properties:
120 - atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up.
122 The node contains child nodes for each wake-up input that the platform uses.
126 Wake-up input nodes are usually described in the "board" part of the Device
127 Tree. Note also that input 0 is linked to the wake-up pin and is frequently
131 - reg: should contain the wake-up input index [0 - 15].
134 - atmel,wakeup-active-high: boolean, the corresponding wake-up input described
135 by the child, forces the wake-up of the core power supply on a high level.
136 The default is to be active low.
142 compatible = "atmel,sama5d2-shdwc";
143 reg = <0xf8048010 0x10>;
145 #address-cells = <1>;
147 atmel,wakeup-rtc-timer;
152 debounce-delay-us = <976>;
160 atmel,wakeup-active-high;
164 Special Function Registers (SFR)
166 Special Function Registers (SFR) manage specific aspects of the integrated
167 memory, bridge implementations, processor and other functionality not controlled
171 - compatible: Should be "atmel,<chip>-sfr", "syscon" or
172 "atmel,<chip>-sfrbu", "syscon"
173 <chip> can be "sama5d3", "sama5d4" or "sama5d2".
174 It also can be "microchip,sam9x60-sfr", "syscon".
175 - reg: Should contain registers location and length
178 compatible = "atmel,sama5d3-sfr", "syscon";
179 reg = <0xf0038000 0x60>;
182 Security Module (SECUMOD)
184 The Security Module macrocell provides all necessary secure functions to avoid
185 voltage, temperature, frequency and mechanical attacks on the chip. It also
186 embeds secure memories that can be scrambled.
188 The Security Module also offers the PIOBU pins which can be used as GPIO pins.
189 Note that they maintain their voltage during Backup/Self-refresh.
192 - compatible: Should be "atmel,<chip>-secumod", "syscon".
193 <chip> can be "sama5d2".
194 - reg: Should contain registers location and length
195 - gpio-controller: Marks the port as GPIO controller.
196 - #gpio-cells: There are 2. The pin number is the
197 first, the second represents additional
198 parameters such as GPIO_ACTIVE_HIGH/LOW.
202 compatible = "atmel,sama5d2-secumod", "syscon";
203 reg = <0xfc040000 0x100>;