diff --git a/Documentation/devicetree/bindings/arm/gemini.txt b/Documentation/devicetree/bindings/arm/gemini.txt index 0041eb031116..55bf7ce96c44 100644 --- a/Documentation/devicetree/bindings/arm/gemini.txt +++ b/Documentation/devicetree/bindings/arm/gemini.txt @@ -24,6 +24,19 @@ Required nodes: global control registers, with the compatible string "cortina,gemini-syscon", "syscon"; + Required properties on the syscon: + - reg: syscon register location and size. + - #clock-cells: should be set to <1> - the system controller is also a + clock provider. + - #reset-cells: should be set to <1> - the system controller is also a + reset line provider. + + The clock sources have shorthand defines in the include file: + + + The reset lines have shorthand defines in the include file: + + - timer: the soc bus node must have a timer node pointing to the SoC timer block, with the compatible string "cortina,gemini-timer" See: clocksource/cortina,gemini-timer.txt @@ -56,12 +69,15 @@ Example: syscon: syscon@40000000 { compatible = "cortina,gemini-syscon", "syscon"; reg = <0x40000000 0x1000>; + #clock-cells = <1>; + #reset-cells = <1>; }; uart0: serial@42000000 { compatible = "ns16550a"; reg = <0x42000000 0x100>; - clock-frequency = <48000000>; + resets = <&syscon GEMINI_RESET_UART>; + clocks = <&syscon GEMINI_CLK_UART>; interrupts = <18 IRQ_TYPE_LEVEL_HIGH>; reg-shift = <2>; }; @@ -73,12 +89,18 @@ Example: interrupts = <14 IRQ_TYPE_EDGE_FALLING>, /* Timer 1 */ <15 IRQ_TYPE_EDGE_FALLING>, /* Timer 2 */ <16 IRQ_TYPE_EDGE_FALLING>; /* Timer 3 */ + resets = <&syscon GEMINI_RESET_TIMER>; + /* APB clock or RTC clock */ + clocks = <&syscon GEMINI_CLK_APB>, + <&syscon GEMINI_CLK_RTC>; + clock-names = "PCLK", "EXTCLK"; syscon = <&syscon>; }; intcon: interrupt-controller@48000000 { compatible = "cortina,gemini-interrupt-controller"; reg = <0x48000000 0x1000>; + resets = <&syscon GEMINI_RESET_INTCON0>; interrupt-controller; #interrupt-cells = <2>; }; diff --git a/arch/arm/boot/dts/gemini.dtsi b/arch/arm/boot/dts/gemini.dtsi index b8d011bdcc76..80abf84f8a80 100644 --- a/arch/arm/boot/dts/gemini.dtsi +++ b/arch/arm/boot/dts/gemini.dtsi @@ -25,8 +25,11 @@ }; syscon: syscon@40000000 { - compatible = "cortina,gemini-syscon", "syscon", "simple-mfd"; + compatible = "cortina,gemini-syscon", + "syscon", "simple-mfd"; reg = <0x40000000 0x1000>; + #clock-cells = <1>; + #reset-cells = <1>; syscon-reboot { compatible = "syscon-reboot"; @@ -42,23 +45,30 @@ compatible = "cortina,gemini-watchdog"; reg = <0x41000000 0x1000>; interrupts = <3 IRQ_TYPE_LEVEL_HIGH>; + resets = <&syscon 23>; + clocks = <&syscon 2>; }; uart0: serial@42000000 { compatible = "ns16550a"; reg = <0x42000000 0x100>; - clock-frequency = <48000000>; + resets = <&syscon 18>; + clocks = <&syscon 6>; interrupts = <18 IRQ_TYPE_LEVEL_HIGH>; reg-shift = <2>; }; timer@43000000 { - compatible = "cortina,gemini-timer"; + compatible = "faraday,fttmr010"; reg = <0x43000000 0x1000>; interrupt-parent = <&intcon>; interrupts = <14 IRQ_TYPE_EDGE_FALLING>, /* Timer 1 */ <15 IRQ_TYPE_EDGE_FALLING>, /* Timer 2 */ <16 IRQ_TYPE_EDGE_FALLING>; /* Timer 3 */ + resets = <&syscon 17>; + /* APB clock or RTC clock */ + clocks = <&syscon 2>, <&syscon 0>; + clock-names = "PCLK", "EXTCLK"; syscon = <&syscon>; }; @@ -66,11 +76,15 @@ compatible = "cortina,gemini-rtc"; reg = <0x45000000 0x100>; interrupts = <17 IRQ_TYPE_LEVEL_HIGH>; + resets = <&syscon 16>; + clocks = <&syscon 2>, <&syscon 0>; + clock-names = "PCLK", "EXTCLK"; }; intcon: interrupt-controller@48000000 { compatible = "faraday,ftintc010"; reg = <0x48000000 0x1000>; + resets = <&syscon 14>; interrupt-controller; #interrupt-cells = <2>; }; @@ -85,6 +99,8 @@ compatible = "cortina,gemini-gpio", "faraday,ftgpio010"; reg = <0x4d000000 0x100>; interrupts = <22 IRQ_TYPE_LEVEL_HIGH>; + resets = <&syscon 20>; + clocks = <&syscon 2>; gpio-controller; #gpio-cells = <2>; interrupt-controller; @@ -95,6 +111,8 @@ compatible = "cortina,gemini-gpio", "faraday,ftgpio010"; reg = <0x4e000000 0x100>; interrupts = <23 IRQ_TYPE_LEVEL_HIGH>; + resets = <&syscon 21>; + clocks = <&syscon 2>; gpio-controller; #gpio-cells = <2>; interrupt-controller; @@ -105,6 +123,8 @@ compatible = "cortina,gemini-gpio", "faraday,ftgpio010"; reg = <0x4f000000 0x100>; interrupts = <24 IRQ_TYPE_LEVEL_HIGH>; + resets = <&syscon 22>; + clocks = <&syscon 2>; gpio-controller; #gpio-cells = <2>; interrupt-controller; @@ -118,6 +138,9 @@ * to configure the host bridge. */ reg = <0x50000000 0x100>; + resets = <&syscon 7>; + clocks = <&syscon 15>, <&syscon 4>; + clock-names = "PCLK", "PCICLK"; #address-cells = <3>; #size-cells = <2>; #interrupt-cells = <1>;