linux/include/dt-bindings/clock/pxa-clock.h
Robert Jarzmik bda0030366 clk: add pxa clocks infrastructure
Add a the common code used by all PXA variants.

This is the first step in the transition from architecture defined
clocks (in arch/arm/mach-pxa) towards clock framework. The goal is to
have the same features (and not all the features) of the existing
clocks, and enable the transition of PXA to device-tree.

All PXA rely on a "CKEN" type clock, which :
 - has a gate (bit in CKEN register)
 - is generated from a PLL, generally divided
 - has an alternate low power clock

Each variant will specialize the CKEN clock :
 - pxa25x have no low power clock
 - pxa27x in low power use always the 13 MHz ring oscillator
 - pxa3xx in low power have specific dividers for each clock

The device-tree provides a list of CLK_* (ex: CLK_USB or CLK_I2C) to get
a handle on the clock. While pxa-clock.h will describe all the clocks of
all the variants, each variant will only use a subset of it.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-09-30 12:31:30 -07:00

78 lines
1.7 KiB
C

/*
* Inspired by original work from pxa2xx-regs.h by Nicolas Pitre
* Copyright (C) 2014 Robert Jarzmik
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __DT_BINDINGS_CLOCK_PXA2XX_H__
#define __DT_BINDINGS_CLOCK_PXA2XX_H__
#define CLK_NONE 0
#define CLK_1WIRE 1
#define CLK_AC97 2
#define CLK_AC97CONF 3
#define CLK_ASSP 4
#define CLK_BOOT 5
#define CLK_BTUART 6
#define CLK_CAMERA 7
#define CLK_CIR 8
#define CLK_CORE 9
#define CLK_DMC 10
#define CLK_FFUART 11
#define CLK_FICP 12
#define CLK_GPIO 13
#define CLK_HSIO2 14
#define CLK_HWUART 15
#define CLK_I2C 16
#define CLK_I2S 17
#define CLK_IM 18
#define CLK_INC 19
#define CLK_ISC 20
#define CLK_KEYPAD 21
#define CLK_LCD 22
#define CLK_MEMC 23
#define CLK_MEMSTK 24
#define CLK_MINI_IM 25
#define CLK_MINI_LCD 26
#define CLK_MMC 27
#define CLK_MMC1 28
#define CLK_MMC2 29
#define CLK_MMC3 30
#define CLK_MSL 31
#define CLK_MSL0 32
#define CLK_MVED 33
#define CLK_NAND 34
#define CLK_NSSP 35
#define CLK_OSTIMER 36
#define CLK_PWM0 37
#define CLK_PWM1 38
#define CLK_PWM2 39
#define CLK_PWM3 40
#define CLK_PWRI2C 41
#define CLK_PXA300_GCU 42
#define CLK_PXA320_GCU 43
#define CLK_SMC 44
#define CLK_SSP 45
#define CLK_SSP1 46
#define CLK_SSP2 47
#define CLK_SSP3 48
#define CLK_SSP4 49
#define CLK_STUART 50
#define CLK_TOUCH 51
#define CLK_TPM 52
#define CLK_UDC 53
#define CLK_USB 54
#define CLK_USB2 55
#define CLK_USBH 56
#define CLK_USBHOST 57
#define CLK_USIM 58
#define CLK_USIM1 59
#define CLK_USMI0 60
#define CLK_MAX 61
#endif