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/*
* IMX Clock Control Module base class
*
* Copyright (C) 2012 NICTA
* Updated by Jean-Christophe Dubois <jcd@tribudubois.net>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef IMX_CCM_H
#define IMX_CCM_H
#include "hw/sysbus.h"
#include "qom/object.h"
#define CKIL_FREQ 32768 /* nominal 32khz clock */
/* PLL control registers */
#define PD(v) (((v) >> 26) & 0xf)
#define MFD(v) (((v) >> 16) & 0x3ff)
#define MFI(v) (((v) >> 10) & 0xf);
#define MFN(v) ((v) & 0x3ff)
#define PLL_PD(x) (((x) & 0xf) << 26)
#define PLL_MFD(x) (((x) & 0x3ff) << 16)
#define PLL_MFI(x) (((x) & 0xf) << 10)
#define PLL_MFN(x) (((x) & 0x3ff) << 0)
#define TYPE_IMX_CCM "imx.ccm"
typedef struct IMXCCMClass IMXCCMClass;
typedef struct IMXCCMState IMXCCMState;
DECLARE_OBJ_CHECKERS(IMXCCMState, IMXCCMClass,
IMX_CCM, TYPE_IMX_CCM)
struct IMXCCMState {
/* <private> */
SysBusDevice parent_obj;
/* <public> */
};
typedef enum {
CLK_NONE,
CLK_IPG,
CLK_IPG_HIGH,
CLK_32k,
CLK_EXT,
CLK_HIGH_DIV,
CLK_HIGH,
} IMXClk;
struct IMXCCMClass {
/* <private> */
SysBusDeviceClass parent_class;
/* <public> */
uint32_t (*get_clock_frequency)(IMXCCMState *s, IMXClk clk);
};
uint32_t imx_ccm_calc_pll(uint32_t pllreg, uint32_t base_freq);
uint32_t imx_ccm_get_clock_frequency(IMXCCMState *s, IMXClk clock);
#endif /* IMX_CCM_H */
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