Commit 232aa35e authored by Alexandre TORGUE's avatar Alexandre TORGUE

Merge commit 'f8b50363' into stm32-dt-for-v4.11

parents 7ce7d89f f8b50363
...@@ -17,6 +17,9 @@ Required properties: ...@@ -17,6 +17,9 @@ Required properties:
property, containing a phandle to the clock device node, an index selecting 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 between gated clocks and other clocks and an index specifying the clock to
use. use.
- clocks: External oscillator clock phandle
- high speed external clock signal (HSE)
- external I2S clock (I2S_CKIN)
Example: Example:
...@@ -25,6 +28,7 @@ Example: ...@@ -25,6 +28,7 @@ Example:
#clock-cells = <2> #clock-cells = <2>
compatible = "st,stm32f42xx-rcc", "st,stm32-rcc"; compatible = "st,stm32f42xx-rcc", "st,stm32-rcc";
reg = <0x40023800 0x400>; reg = <0x40023800 0x400>;
clocks = <&clk_hse>, <&clk_i2s_ckin>;
}; };
Specifying gated clocks Specifying gated clocks
...@@ -66,6 +70,19 @@ The secondary index is bound with the following magic numbers: ...@@ -66,6 +70,19 @@ The secondary index is bound with the following magic numbers:
0 SYSTICK 0 SYSTICK
1 FCLK 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: Example:
......
/*
* 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:
<assigned-clocks = <&rcc 1 CLK_LSE>;
*/
#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
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