diff --git a/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt index 0532d815dae322045de67032428ac411c6b82f9d..8f19d87cbf2451e4668f918832c94922363c07d6 100644 --- a/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt +++ b/Documentation/devicetree/bindings/clock/st,stm32-rcc.txt @@ -17,6 +17,9 @@ Required properties: property, containing a phandle to the clock device node, an index selecting between gated clocks and other clocks and an index specifying the clock to use. +- clocks: External oscillator clock phandle + - high speed external clock signal (HSE) + - external I2S clock (I2S_CKIN) Example: @@ -25,6 +28,7 @@ Example: #clock-cells = <2> compatible = "st,stm32f42xx-rcc", "st,stm32-rcc"; reg = <0x40023800 0x400>; + clocks = <&clk_hse>, <&clk_i2s_ckin>; }; Specifying gated clocks @@ -66,6 +70,19 @@ The secondary index is bound with the following magic numbers: 0 SYSTICK 1 FCLK + 2 CLK_LSI (low-power clock source) + 3 CLK_LSE (generated from a 32.768 kHz low-speed external + crystal or ceramic resonator) + 4 CLK_HSE_RTC (HSE division factor for RTC clock) + 5 CLK_RTC (real-time clock) + 6 PLL_VCO_I2S (vco frequency of I2S pll) + 7 PLL_VCO_SAI (vco frequency of SAI pll) + 8 CLK_LCD (LCD-TFT) + 9 CLK_I2S (I2S clocks) + 10 CLK_SAI1 (audio clocks) + 11 CLK_SAI2 + 12 CLK_I2SQ_PDIV (post divisor of pll i2s q divisor) + 13 CLK_SAIQ_PDIV (post divisor of pll sai q divisor) Example: diff --git a/arch/arm/boot/dts/stm32429i-eval.dts b/arch/arm/boot/dts/stm32429i-eval.dts index 5436e880e28f14bc6298d36a648c7e8189816cca..eedb27d33f6662ab48d90771067a26dbd2709520 100644 --- a/arch/arm/boot/dts/stm32429i-eval.dts +++ b/arch/arm/boot/dts/stm32429i-eval.dts @@ -70,6 +70,20 @@ dma-ranges = <0xc0000000 0x0 0x10000000>; }; + regulators { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + reg_vref: regulator@0 { + compatible = "regulator-fixed"; + reg = <0>; + regulator-name = "vref"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + }; + leds { compatible = "gpio-leds"; green { @@ -112,6 +126,17 @@ }; }; +&adc { + pinctrl-names = "default"; + pinctrl-0 = <&adc3_in8_pin>; + vref-supply = <®_vref>; + status = "okay"; + adc3: adc@200 { + st,adc-channels = <8>; + status = "okay"; + }; +}; + &clk_hse { clock-frequency = <25000000>; }; @@ -132,6 +157,10 @@ }; }; +&rtc { + status = "okay"; +}; + &usart1 { pinctrl-0 = <&usart1_pins_a>; pinctrl-names = "default"; diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts index 7d0415e80668946f8df0f89813788a011a340bbf..9222b9f37bc00fefa1d9bb2176192bbb7effbe7e 100644 --- a/arch/arm/boot/dts/stm32f429-disco.dts +++ b/arch/arm/boot/dts/stm32f429-disco.dts @@ -94,6 +94,12 @@ clock-frequency = <8000000>; }; +&rtc { + assigned-clocks = <&rcc 1 CLK_RTC>; + assigned-clock-parents = <&rcc 1 CLK_LSI>; + status = "okay"; +}; + &usart1 { pinctrl-0 = <&usart1_pins_a>; pinctrl-names = "default"; diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi index e4dae0eda3cdf95ebf65e3ea29cc07f8ed375335..f05a9d95ef234a5f3aa9269daa1d728472fcac84 100644 --- a/arch/arm/boot/dts/stm32f429.dtsi +++ b/arch/arm/boot/dts/stm32f429.dtsi @@ -48,6 +48,7 @@ #include "skeleton.dtsi" #include "armv7-m.dtsi" #include +#include / { clocks { @@ -68,6 +69,12 @@ compatible = "fixed-clock"; clock-frequency = <32000>; }; + + clk_i2s_ckin: i2s-ckin { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <0>; + }; }; soc { @@ -118,6 +125,20 @@ status = "disabled"; }; + rtc: rtc@40002800 { + compatible = "st,stm32-rtc"; + reg = <0x40002800 0x400>; + clocks = <&rcc 1 CLK_RTC>; + clock-names = "ck_rtc"; + assigned-clocks = <&rcc 1 CLK_RTC>; + assigned-clock-parents = <&rcc 1 CLK_LSE>; + interrupt-parent = <&exti>; + interrupts = <17 1>; + interrupt-names = "alarm"; + st,syscfg = <&pwrcfg>; + status = "disabled"; + }; + usart2: serial@40004400 { compatible = "st,stm32-usart", "st,stm32-uart"; reg = <0x40004400 0x400>; @@ -188,6 +209,49 @@ status = "disabled"; }; + adc: adc@40012000 { + compatible = "st,stm32f4-adc-core"; + reg = <0x40012000 0x400>; + interrupts = <18>; + clocks = <&rcc 0 168>; + clock-names = "adc"; + interrupt-controller; + #interrupt-cells = <1>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + + adc1: adc@0 { + compatible = "st,stm32f4-adc"; + #io-channel-cells = <1>; + reg = <0x0>; + clocks = <&rcc 0 168>; + interrupt-parent = <&adc>; + interrupts = <0>; + status = "disabled"; + }; + + adc2: adc@100 { + compatible = "st,stm32f4-adc"; + #io-channel-cells = <1>; + reg = <0x100>; + clocks = <&rcc 0 169>; + interrupt-parent = <&adc>; + interrupts = <1>; + status = "disabled"; + }; + + adc3: adc@200 { + compatible = "st,stm32f4-adc"; + #io-channel-cells = <1>; + reg = <0x200>; + clocks = <&rcc 0 170>; + interrupt-parent = <&adc>; + interrupts = <2>; + status = "disabled"; + }; + }; + syscfg: system-config@40013800 { compatible = "syscon"; reg = <0x40013800 0x400>; @@ -316,6 +380,19 @@ }; }; + usart3_pins_a: usart3@0 { + pins1 { + pinmux = ; + bias-disable; + drive-push-pull; + slew-rate = <0>; + }; + pins2 { + pinmux = ; + bias-disable; + }; + }; + usbotg_hs_pins_a: usbotg_hs@0 { pins { pinmux = , @@ -355,6 +432,12 @@ slew-rate = <2>; }; }; + + adc3_in8_pin: adc@200 { + pins { + pinmux = ; + }; + }; }; rcc: rcc@40023810 { @@ -362,8 +445,10 @@ #clock-cells = <2>; compatible = "st,stm32f42xx-rcc", "st,stm32-rcc"; reg = <0x40023800 0x400>; - clocks = <&clk_hse>; + clocks = <&clk_hse>, <&clk_i2s_ckin>; st,syscfg = <&pwrcfg>; + assigned-clocks = <&rcc 1 CLK_HSE_RTC>; + assigned-clock-rates = <1000000>; }; dma1: dma-controller@40026000 { diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts index 8877c00ce8e8bf8f12f3ff58d6566a07d09a6fb3..f52b9f6cf56609010c103925429e82fafcda0dfd 100644 --- a/arch/arm/boot/dts/stm32f469-disco.dts +++ b/arch/arm/boot/dts/stm32f469-disco.dts @@ -58,7 +58,7 @@ }; memory { - reg = <0x00000000 0x800000>; + reg = <0x00000000 0x1000000>; }; aliases { @@ -78,6 +78,12 @@ clock-frequency = <8000000>; }; +&rtc { + status = "okay"; +}; + &usart3 { + pinctrl-0 = <&usart3_pins_a>; + pinctrl-names = "default"; status = "okay"; }; diff --git a/include/dt-bindings/clock/stm32fx-clock.h b/include/dt-bindings/clock/stm32fx-clock.h new file mode 100644 index 0000000000000000000000000000000000000000..08bcab61b7140422d6f63d5d0fbbd473d5e05c11 --- /dev/null +++ b/include/dt-bindings/clock/stm32fx-clock.h @@ -0,0 +1,39 @@ +/* + * stm32fx-clock.h + * + * Copyright (C) 2016 STMicroelectronics + * Author: Gabriel Fernandez for STMicroelectronics. + * License terms: GNU General Public License (GPL), version 2 + */ + +/* + * List of clocks wich are not derived from system clock (SYSCLOCK) + * + * The index of these clocks is the secondary index of DT bindings + * (see Documentatoin/devicetree/bindings/clock/st,stm32-rcc.txt) + * + * e.g: + ; +*/ + +#ifndef _DT_BINDINGS_CLK_STMFX_H +#define _DT_BINDINGS_CLK_STMFX_H + +#define SYSTICK 0 +#define FCLK 1 +#define CLK_LSI 2 +#define CLK_LSE 3 +#define CLK_HSE_RTC 4 +#define CLK_RTC 5 +#define PLL_VCO_I2S 6 +#define PLL_VCO_SAI 7 +#define CLK_LCD 8 +#define CLK_I2S 9 +#define CLK_SAI1 10 +#define CLK_SAI2 11 +#define CLK_I2SQ_PDIV 12 +#define CLK_SAIQ_PDIV 13 + +#define END_PRIMARY_CLK 14 + +#endif