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freebsd/sys/arm/ti/ti_prcm.h
Oleksandr Tymoshenko e53470fee3 Merging of projects/armv6, part 10
- Support for Texas Instruments SoCs:
	- AM335x
	- OMAP4

- Kernel configs, DTS for Beaglebone and Pandaboard

Submitted by:	Ben Gray, Damjan Marion
2012-08-15 06:31:32 +00:00

186 lines
4.4 KiB
C

/*
* Copyright (c) 2010
* Ben Gray <ben.r.gray@gmail.com>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Ben Gray.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BEN GRAY ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL BEN GRAY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Texas Instruments - OMAP3xxx series processors
*
* Reference:
* OMAP35x Applications Processor
* Technical Reference Manual
* (omap35xx_techref.pdf)
*/
#ifndef _TI_PRCM_H_
#define _TI_PRCM_H_
typedef enum {
/* System clocks, typically you can only call ti_prcm_clk_get_source_freq()
* on these clocks as they are enabled by default.
*/
SYS_CLK = 1,
/* The MPU (ARM) core clock */
MPU_CLK = 20,
/* MMC modules */
MMC0_CLK = 100,
MMC1_CLK,
MMC2_CLK,
MMC3_CLK,
MMC4_CLK,
MMC5_CLK,
/* I2C modules */
I2C0_CLK = 200,
I2C1_CLK,
I2C2_CLK,
I2C3_CLK,
I2C4_CLK,
/* USB module(s) */
USBTLL_CLK = 300,
USBHSHOST_CLK,
USBFSHOST_CLK,
USBP1_PHY_CLK,
USBP2_PHY_CLK,
USBP1_UTMI_CLK,
USBP2_UTMI_CLK,
USBP1_HSIC_CLK,
USBP2_HSIC_CLK,
/* UART modules */
UART1_CLK = 400,
UART2_CLK,
UART3_CLK,
UART4_CLK,
/* General purpose timer modules */
GPTIMER1_CLK = 500,
GPTIMER2_CLK,
GPTIMER3_CLK,
GPTIMER4_CLK,
GPTIMER5_CLK,
GPTIMER6_CLK,
GPTIMER7_CLK,
GPTIMER8_CLK,
GPTIMER9_CLK,
GPTIMER10_CLK,
GPTIMER11_CLK,
GPTIMER12_CLK,
/* McBSP module(s) */
MCBSP1_CLK = 600,
MCBSP2_CLK,
MCBSP3_CLK,
MCBSP4_CLK,
MCBSP5_CLK,
/* General purpose I/O modules */
GPIO0_CLK = 700,
GPIO1_CLK,
GPIO2_CLK,
GPIO3_CLK,
GPIO4_CLK,
GPIO5_CLK,
GPIO6_CLK,
/* sDMA module */
SDMA_CLK = 800,
/* DMTimer modules */
DMTIMER0_CLK = 900,
DMTIMER1_CLK,
DMTIMER2_CLK,
DMTIMER3_CLK,
DMTIMER4_CLK,
DMTIMER5_CLK,
DMTIMER6_CLK,
DMTIMER7_CLK,
/* CPSW modules */
CPSW_CLK = 1000,
/* Mentor USB modules */
MUSB0_CLK = 1100,
/* EDMA module */
EDMA_TPCC_CLK = 1200,
EDMA_TPTC0_CLK,
EDMA_TPTC1_CLK,
EDMA_TPTC2_CLK,
INVALID_CLK_IDENT
} clk_ident_t;
/*
*
*/
typedef enum {
SYSCLK_CLK, /* System clock */
EXT_CLK,
F32KHZ_CLK, /* 32KHz clock */
F48MHZ_CLK, /* 48MHz clock */
F64MHZ_CLK, /* 64MHz clock */
F96MHZ_CLK, /* 96MHz clock */
} clk_src_t;
struct ti_clock_dev {
/* The profile of the timer */
clk_ident_t id;
/* A bunch of callbacks associated with the clock device */
int (*clk_activate)(struct ti_clock_dev *clkdev);
int (*clk_deactivate)(struct ti_clock_dev *clkdev);
int (*clk_set_source)(struct ti_clock_dev *clkdev,
clk_src_t clksrc);
int (*clk_accessible)(struct ti_clock_dev *clkdev);
int (*clk_get_source_freq)(struct ti_clock_dev *clkdev,
unsigned int *freq);
};
int ti_prcm_clk_valid(clk_ident_t clk);
int ti_prcm_clk_enable(clk_ident_t clk);
int ti_prcm_clk_disable(clk_ident_t clk);
int ti_prcm_clk_accessible(clk_ident_t clk);
int ti_prcm_clk_disable_autoidle(clk_ident_t clk);
int ti_prcm_clk_set_source(clk_ident_t clk, clk_src_t clksrc);
int ti_prcm_clk_get_source_freq(clk_ident_t clk, unsigned int *freq);
void ti_prcm_reset(void);
#endif /* _TI_PRCM_H_ */