/* * IMX Clock Control Module base class * * Copyright (C) 2012 NICTA * Updated by Jean-Christophe Dubois * * 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; #define IMX_CCM(obj) \ OBJECT_CHECK(IMXCCMState, (obj), TYPE_IMX_CCM) #define IMX_CCM_CLASS(klass) \ OBJECT_CLASS_CHECK(IMXCCMClass, (klass), TYPE_IMX_CCM) #define IMX_CCM_GET_CLASS(obj) \ OBJECT_GET_CLASS(IMXCCMClass, (obj), TYPE_IMX_CCM) struct IMXCCMState { /* */ SysBusDevice parent_obj; /* */ }; typedef enum { CLK_NONE, CLK_IPG, CLK_IPG_HIGH, CLK_32k, CLK_EXT, CLK_HIGH_DIV, CLK_HIGH, } IMXClk; struct IMXCCMClass { /* */ SysBusDeviceClass parent_class; /* */ 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 */