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Kirill Smelkov
linux
Commits
232aa35e
Commit
232aa35e
authored
Jan 20, 2017
by
Alexandre TORGUE
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Merge commit '
f8b50363
' into stm32-dt-for-v4.11
parents
7ce7d89f
f8b50363
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Documentation/devicetree/bindings/clock/st,stm32-rcc.txt
Documentation/devicetree/bindings/clock/st,stm32-rcc.txt
+17
-0
include/dt-bindings/clock/stm32fx-clock.h
include/dt-bindings/clock/stm32fx-clock.h
+39
-0
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Documentation/devicetree/bindings/clock/st,stm32-rcc.txt
View file @
232aa35e
...
...
@@ -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:
...
...
include/dt-bindings/clock/stm32fx-clock.h
0 → 100644
View file @
232aa35e
/*
* 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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