diff options
Diffstat (limited to 'Documentation/devicetree/bindings/arm/atmel-sysregs.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/atmel-sysregs.txt | 167 |
1 files changed, 12 insertions, 155 deletions
diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt index ab1b352344ae..5ce54f9befe6 100644 --- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt +++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt @@ -2,6 +2,7 @@ Atmel system registers Chipid required properties: - compatible: Should be "atmel,sama5d2-chipid" or "microchip,sama7g5-chipid" + "microchip,sama7d65-chipid" - reg : Should contain registers location and length PIT Timer required properties: @@ -11,7 +12,9 @@ PIT Timer required properties: shared across all System Controller members. PIT64B Timer required properties: -- compatible: Should be "microchip,sam9x60-pit64b" +- compatible: Should be "microchip,sam9x60-pit64b" or + "microchip,sam9x7-pit64b", "microchip,sam9x60-pit64b" + "microchip,sama7d65-pit64b", "microchip,sam9x60-pit64b" - reg: Should contain registers location and length - interrupts: Should contain interrupt for PIT64B timer - clocks: Should contain the available clock sources for PIT64B timer. @@ -26,12 +29,14 @@ Its subnodes can be: - watchdog: compatible should be "atmel,at91rm9200-wdt" RAMC SDRAM/DDR Controller required properties: -- compatible: Should be "atmel,at91rm9200-sdramc", "syscon" - "atmel,at91sam9260-sdramc", - "atmel,at91sam9g45-ddramc", - "atmel,sama5d3-ddramc", - "microchip,sam9x60-ddramc", - "microchip,sama7g5-uddrc" +- compatible: Should be "atmel,at91rm9200-sdramc", "syscon" or + "atmel,at91sam9260-sdramc" or + "atmel,at91sam9g45-ddramc" or + "atmel,sama5d3-ddramc" or + "microchip,sam9x60-ddramc" or + "microchip,sama7g5-uddrc" or + "microchip,sama7d65-uddrc", "microchip,sama7g5-uddrc" or + "microchip,sam9x7-ddramc", "atmel,sama5d3-ddramc". - reg: Should contain registers location and length Examples: @@ -41,151 +46,3 @@ Examples: reg = <0xffffe800 0x200>; }; -RAMC PHY Controller required properties: -- compatible: Should be "microchip,sama7g5-ddr3phy", "syscon" -- reg: Should contain registers location and length - -Example: - - ddr3phy: ddr3phy@e3804000 { - compatible = "microchip,sama7g5-ddr3phy", "syscon"; - reg = <0xe3804000 0x1000>; -}; - -SHDWC Shutdown Controller - -required properties: -- compatible: Should be "atmel,<chip>-shdwc". - <chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5". -- reg: Should contain registers location and length -- clocks: phandle to input clock. - -optional properties: -- atmel,wakeup-mode: String, operation mode of the wakeup mode. - Supported values are: "none", "high", "low", "any". -- atmel,wakeup-counter: Counter on Wake-up 0 (between 0x0 and 0xf). - -optional at91sam9260 properties: -- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up. - -optional at91sam9rl properties: -- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up. -- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up. - -optional at91sam9x5 properties: -- atmel,wakeup-rtc-timer: boolean to enable Real-time Clock Wake-up. - -Example: - - shdwc@fffffd10 { - compatible = "atmel,at91sam9260-shdwc"; - reg = <0xfffffd10 0x10>; - clocks = <&clk32k>; - }; - -SHDWC SAMA5D2-Compatible Shutdown Controller - -1) shdwc node - -required properties: -- compatible: should be "atmel,sama5d2-shdwc", "microchip,sam9x60-shdwc" or - "microchip,sama7g5-shdwc" -- reg: should contain registers location and length -- clocks: phandle to input clock. -- #address-cells: should be one. The cell is the wake-up input index. -- #size-cells: should be zero. - -optional properties: - -- debounce-delay-us: minimum wake-up inputs debouncer period in - microseconds. It's usually a board-related property. -- atmel,wakeup-rtc-timer: boolean to enable Real-Time Clock wake-up. - -optional microchip,sam9x60-shdwc or microchip,sama7g5-shdwc properties: -- atmel,wakeup-rtt-timer: boolean to enable Real-time Timer Wake-up. - -The node contains child nodes for each wake-up input that the platform uses. - -2) input nodes - -Wake-up input nodes are usually described in the "board" part of the Device -Tree. Note also that input 0 is linked to the wake-up pin and is frequently -used. - -Required properties: -- reg: should contain the wake-up input index [0 - 15]. - -Optional properties: -- atmel,wakeup-active-high: boolean, the corresponding wake-up input described - by the child, forces the wake-up of the core power supply on a high level. - The default is to be active low. - -Example: - -On the SoC side: - shdwc@f8048010 { - compatible = "atmel,sama5d2-shdwc"; - reg = <0xf8048010 0x10>; - clocks = <&clk32k>; - #address-cells = <1>; - #size-cells = <0>; - atmel,wakeup-rtc-timer; - }; - -On the board side: - shdwc@f8048010 { - debounce-delay-us = <976>; - - input@0 { - reg = <0>; - }; - - input@1 { - reg = <1>; - atmel,wakeup-active-high; - }; - }; - -Special Function Registers (SFR) - -Special Function Registers (SFR) manage specific aspects of the integrated -memory, bridge implementations, processor and other functionality not controlled -elsewhere. - -required properties: -- compatible: Should be "atmel,<chip>-sfr", "syscon" or - "atmel,<chip>-sfrbu", "syscon" - <chip> can be "sama5d3", "sama5d4" or "sama5d2". - It also can be "microchip,sam9x60-sfr", "syscon". -- reg: Should contain registers location and length - - sfr@f0038000 { - compatible = "atmel,sama5d3-sfr", "syscon"; - reg = <0xf0038000 0x60>; - }; - -Security Module (SECUMOD) - -The Security Module macrocell provides all necessary secure functions to avoid -voltage, temperature, frequency and mechanical attacks on the chip. It also -embeds secure memories that can be scrambled. - -The Security Module also offers the PIOBU pins which can be used as GPIO pins. -Note that they maintain their voltage during Backup/Self-refresh. - -required properties: -- compatible: Should be "atmel,<chip>-secumod", "syscon". - <chip> can be "sama5d2". -- reg: Should contain registers location and length -- gpio-controller: Marks the port as GPIO controller. -- #gpio-cells: There are 2. The pin number is the - first, the second represents additional - parameters such as GPIO_ACTIVE_HIGH/LOW. - - - secumod@fc040000 { - compatible = "atmel,sama5d2-secumod", "syscon"; - reg = <0xfc040000 0x100>; - gpio-controller; - #gpio-cells = <2>; - }; |