diff options
Diffstat (limited to 'sys/arm/ti/ti_prcm.h')
| -rw-r--r-- | sys/arm/ti/ti_prcm.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/sys/arm/ti/ti_prcm.h b/sys/arm/ti/ti_prcm.h new file mode 100644 index 000000000000..61b696076dda --- /dev/null +++ b/sys/arm/ti/ti_prcm.h @@ -0,0 +1,207 @@ +/* + * 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_ */ |