Merge commit 'f8b5036361412a27c07a4ac9c3a4b80678cbd1e1' into stm32-dt-for-v4.11
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232aa35e1b
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@ -17,6 +17,9 @@ Required properties:
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property, containing a phandle to the clock device node, an index selecting
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between gated clocks and other clocks and an index specifying the clock to
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use.
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- clocks: External oscillator clock phandle
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- high speed external clock signal (HSE)
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- external I2S clock (I2S_CKIN)
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Example:
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@ -25,6 +28,7 @@ Example:
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#clock-cells = <2>
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compatible = "st,stm32f42xx-rcc", "st,stm32-rcc";
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reg = <0x40023800 0x400>;
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clocks = <&clk_hse>, <&clk_i2s_ckin>;
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};
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Specifying gated clocks
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@ -66,6 +70,19 @@ The secondary index is bound with the following magic numbers:
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0 SYSTICK
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1 FCLK
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2 CLK_LSI (low-power clock source)
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3 CLK_LSE (generated from a 32.768 kHz low-speed external
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crystal or ceramic resonator)
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4 CLK_HSE_RTC (HSE division factor for RTC clock)
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5 CLK_RTC (real-time clock)
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6 PLL_VCO_I2S (vco frequency of I2S pll)
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7 PLL_VCO_SAI (vco frequency of SAI pll)
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8 CLK_LCD (LCD-TFT)
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9 CLK_I2S (I2S clocks)
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10 CLK_SAI1 (audio clocks)
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11 CLK_SAI2
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12 CLK_I2SQ_PDIV (post divisor of pll i2s q divisor)
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13 CLK_SAIQ_PDIV (post divisor of pll sai q divisor)
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Example:
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@ -0,0 +1,39 @@
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/*
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* stm32fx-clock.h
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*
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* Copyright (C) 2016 STMicroelectronics
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* Author: Gabriel Fernandez for STMicroelectronics.
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* License terms: GNU General Public License (GPL), version 2
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*/
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/*
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* List of clocks wich are not derived from system clock (SYSCLOCK)
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*
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* The index of these clocks is the secondary index of DT bindings
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* (see Documentatoin/devicetree/bindings/clock/st,stm32-rcc.txt)
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*
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* e.g:
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<assigned-clocks = <&rcc 1 CLK_LSE>;
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*/
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#ifndef _DT_BINDINGS_CLK_STMFX_H
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#define _DT_BINDINGS_CLK_STMFX_H
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#define SYSTICK 0
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#define FCLK 1
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#define CLK_LSI 2
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#define CLK_LSE 3
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#define CLK_HSE_RTC 4
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#define CLK_RTC 5
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#define PLL_VCO_I2S 6
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#define PLL_VCO_SAI 7
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#define CLK_LCD 8
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#define CLK_I2S 9
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#define CLK_SAI1 10
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#define CLK_SAI2 11
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#define CLK_I2SQ_PDIV 12
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#define CLK_SAIQ_PDIV 13
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#define END_PRIMARY_CLK 14
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#endif
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