diff options
| -rw-r--r-- | Documentation/devicetree/bindings/clock/alphascale,acc.txt | 115 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/vendor-prefixes.txt | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/boot/dts/alphascale-asm9260-devkit.dts | 13 | ||||
| -rw-r--r-- | arch/arm/boot/dts/alphascale-asm9260.dtsi | 63 |
5 files changed, 193 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/clock/alphascale,acc.txt b/Documentation/devicetree/bindings/clock/alphascale,acc.txt new file mode 100644 index 000000000000..62e67e883e76 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/alphascale,acc.txt @@ -0,0 +1,115 @@ +Alphascale Clock Controller + +The ACC (Alphascale Clock Controller) is responsible of choising proper +clock source, setting deviders and clock gates. + +Required properties for the ACC node: + - compatible: must be "alphascale,asm9260-clock-controller" + - reg: must contain the ACC register base and size + - #clock-cells : shall be set to 1. + +Simple one-cell clock specifier format is used, where the only cell is used +as an index of the clock inside the provider. +It is encouraged to use dt-binding for clock index definitions. SoC specific +dt-binding should be included to the device tree descriptor. For example +Alphascale ASM9260: +#include <dt-bindings/clock/alphascale,asm9260.h> + +This binding contains two types of clock providers: + _AHB_ - AHB gate; + _SYS_ - adjustable clock source. Not all peripheral have _SYS_ clock provider. +All clock specific details can be found in the SoC documentation. +CLKID_AHB_ROM 0 +CLKID_AHB_RAM 1 +CLKID_AHB_GPIO 2 +CLKID_AHB_MAC 3 +CLKID_AHB_EMI 4 +CLKID_AHB_USB0 5 +CLKID_AHB_USB1 6 +CLKID_AHB_DMA0 7 +CLKID_AHB_DMA1 8 +CLKID_AHB_UART0 9 +CLKID_AHB_UART1 10 +CLKID_AHB_UART2 11 +CLKID_AHB_UART3 12 +CLKID_AHB_UART4 13 +CLKID_AHB_UART5 14 +CLKID_AHB_UART6 15 +CLKID_AHB_UART7 16 +CLKID_AHB_UART8 17 +CLKID_AHB_UART9 18 +CLKID_AHB_I2S0 19 +CLKID_AHB_I2C0 20 +CLKID_AHB_I2C1 21 +CLKID_AHB_SSP0 22 +CLKID_AHB_IOCONFIG 23 +CLKID_AHB_WDT 24 +CLKID_AHB_CAN0 25 +CLKID_AHB_CAN1 26 +CLKID_AHB_MPWM 27 +CLKID_AHB_SPI0 28 +CLKID_AHB_SPI1 29 +CLKID_AHB_QEI 30 +CLKID_AHB_QUADSPI0 31 +CLKID_AHB_CAMIF 32 +CLKID_AHB_LCDIF 33 +CLKID_AHB_TIMER0 34 +CLKID_AHB_TIMER1 35 +CLKID_AHB_TIMER2 36 +CLKID_AHB_TIMER3 37 +CLKID_AHB_IRQ 38 +CLKID_AHB_RTC 39 +CLKID_AHB_NAND 40 +CLKID_AHB_ADC0 41 +CLKID_AHB_LED 42 +CLKID_AHB_DAC0 43 +CLKID_AHB_LCD 44 +CLKID_AHB_I2S1 45 +CLKID_AHB_MAC1 46 + +CLKID_SYS_CPU 47 +CLKID_SYS_AHB 48 +CLKID_SYS_I2S0M 49 +CLKID_SYS_I2S0S 50 +CLKID_SYS_I2S1M 51 +CLKID_SYS_I2S1S 52 +CLKID_SYS_UART0 53 +CLKID_SYS_UART1 54 +CLKID_SYS_UART2 55 +CLKID_SYS_UART3 56 +CLKID_SYS_UART4 56 +CLKID_SYS_UART5 57 +CLKID_SYS_UART6 58 +CLKID_SYS_UART7 59 +CLKID_SYS_UART8 60 +CLKID_SYS_UART9 61 +CLKID_SYS_SPI0 62 +CLKID_SYS_SPI1 63 +CLKID_SYS_QUADSPI 64 +CLKID_SYS_SSP0 65 +CLKID_SYS_NAND 66 +CLKID_SYS_TRACE 67 +CLKID_SYS_CAMM 68 +CLKID_SYS_WDT 69 +CLKID_SYS_CLKOUT 70 +CLKID_SYS_MAC 71 +CLKID_SYS_LCD 72 +CLKID_SYS_ADCANA 73 + +Example of clock consumer with _SYS_ and _AHB_ sinks. +uart4: serial@80010000 { + compatible = "alphascale,asm9260-uart"; + reg = <0x80010000 0x4000>; + clocks = <&acc CLKID_SYS_UART4>, <&acc CLKID_AHB_UART4>; + interrupts = <19>; + status = "disabled"; +}; + +Clock consumer with only one, _AHB_ sink. +timer0: timer@80088000 { + compatible = "alphascale,asm9260-timer"; + reg = <0x80088000 0x4000>; + clocks = <&acc CLKID_AHB_TIMER0>; + interrupts = <29>; +}; + diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index b1df0ad1306c..76a4b3b43e59 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -11,6 +11,7 @@ adi Analog Devices, Inc. aeroflexgaisler Aeroflex Gaisler AB ak Asahi Kasei Corp. allwinner Allwinner Technology Co., Ltd. +alphascale AlphaScale Integrated Circuits Systems, Inc. altr Altera Corp. amcc Applied Micro Circuits Corporation (APM, formally AMCC) amd Advanced Micro Devices (AMD), Inc. diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 311691b4a846..f2fd0a2eda40 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -628,7 +628,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \ mt6592-evb.dtb \ mt8127-moose.dtb \ mt8135-evbp1.dtb - +dtb-$(CONFIG_MACH_ASM9260) += alphascale-asm9260-devkit.dtb endif always := $(dtb-y) diff --git a/arch/arm/boot/dts/alphascale-asm9260-devkit.dts b/arch/arm/boot/dts/alphascale-asm9260-devkit.dts new file mode 100644 index 000000000000..c77e2c902fb6 --- /dev/null +++ b/arch/arm/boot/dts/alphascale-asm9260-devkit.dts @@ -0,0 +1,13 @@ +/* + * Copyright 2014 Oleksij Rempel <linux@rempel-privat.de> + * + * Licensed under the X11 license or the GPL v2 (or later) + */ + +/dts-v1/; +#include "alphascale-asm9260.dtsi" + +/ { + model = "Alphascale asm9260 Development Kit"; + compatible = "alphascale,asm9260devkit", "alphascale,asm9260"; +}; diff --git a/arch/arm/boot/dts/alphascale-asm9260.dtsi b/arch/arm/boot/dts/alphascale-asm9260.dtsi new file mode 100644 index 000000000000..907fc7bfc418 --- /dev/null +++ b/arch/arm/boot/dts/alphascale-asm9260.dtsi @@ -0,0 +1,63 @@ +/* + * Copyright 2014 Oleksij Rempel <linux@rempel-privat.de> + * + * Licensed under the X11 license or the GPL v2 (or later) + */ + +#include "skeleton.dtsi" +#include <dt-bindings/clock/alphascale,asm9260.h> + +/ { + interrupt-parent = <&icoll>; + + memory { + device_type = "memory"; + reg = <0x20000000 0x2000000>; + }; + + cpus { + #address-cells = <0>; + #size-cells = <0>; + + cpu { + compatible = "arm,arm926ej-s"; + device_type = "cpu"; + clocks = <&acc CLKID_SYS_CPU>; + }; + }; + + osc24m: oscillator { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + clock-accuracy = <30000>; + }; + + soc { + #address-cells = <1>; + #size-cells = <1>; + compatible = "simple-bus"; + ranges; + + acc: clock-controller@80040000 { + compatible = "alphascale,asm9260-clock-controller"; + #clock-cells = <1>; + clocks = <&osc24m>; + reg = <0x80040000 0x204>; + }; + + icoll: interrupt-controller@80054000 { + compatible = "alphascale,asm9260-icoll"; + interrupt-controller; + #interrupt-cells = <1>; + reg = <0x80054000 0x200>; + }; + + timer0: timer@80088000 { + compatible = "alphascale,asm9260-timer"; + reg = <0x80088000 0x4000>; + clocks = <&acc CLKID_AHB_TIMER0>; + interrupts = <29>; + }; + }; +}; |