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/*
* 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 {
INVALID_CLK_IDENT = 0,
/* 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 */
MMC1_CLK = 100,
MMC2_CLK,
MMC3_CLK,
MMC4_CLK,
MMC5_CLK,
MMC6_CLK,
/* I2C modules */
I2C1_CLK = 200,
I2C2_CLK,
I2C3_CLK,
I2C4_CLK,
I2C5_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,
UART5_CLK,
UART6_CLK,
UART7_CLK,
UART8_CLK,
UART9_CLK,
/* General purpose timer modules */
TIMER1_CLK = 500,
TIMER2_CLK,
TIMER3_CLK,
TIMER4_CLK,
TIMER5_CLK,
TIMER6_CLK,
TIMER7_CLK,
TIMER8_CLK,
TIMER9_CLK,
TIMER10_CLK,
TIMER11_CLK,
TIMER12_CLK,
/* McBSP module(s) */
MCBSP1_CLK = 600,
MCBSP2_CLK,
MCBSP3_CLK,
MCBSP4_CLK,
MCBSP5_CLK,
/* General purpose I/O modules */
GPIO1_CLK = 700,
GPIO2_CLK,
GPIO3_CLK,
GPIO4_CLK,
GPIO5_CLK,
GPIO6_CLK,
GPIO7_CLK,
/* sDMA module */
SDMA_CLK = 800,
/* 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,
/* LCD controller module */
LCDC_CLK = 1300,
/* PWM modules */
PWMSS0_CLK = 1400,
PWMSS1_CLK,
PWMSS2_CLK,
/* Mailbox modules */
MAILBOX0_CLK = 1500,
/* Spinlock modules */
SPINLOCK0_CLK = 1600,
PRUSS_CLK = 1700,
TSC_ADC_CLK = 1800,
/* RTC module */
RTC_CLK = 1900,
/* McSPI */
SPI0_CLK = 2000,
SPI1_CLK,
} 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_set_source_freq)(struct ti_clock_dev *clkdev,
unsigned int freq);
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_set_source_freq(clk_ident_t clk, unsigned int freq);
int ti_prcm_clk_get_source_freq(clk_ident_t clk, unsigned int *freq);
void ti_prcm_reset(void);
#endif /* _TI_PRCM_H_ */
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