[qemu.git] / hw / misc / imx_ccm.c

/*
 * IMX31 Clock Control Module
 *
 * Copyright (C) 2012 NICTA
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 *
 * To get the timer frequencies right, we need to emulate at least part of
 * the CCM.
 */

#include "hw/hw.h"
#include "hw/sysbus.h"
#include "sysemu/sysemu.h"
#include "hw/arm/imx.h"

#define CKIH_FREQ 26000000 /* 26MHz crystal input */
#define CKIL_FREQ    32768 /* nominal 32khz clock */


//#define DEBUG_CCM 1
#ifdef DEBUG_CCM
#define DPRINTF(fmt, args...) \
do { printf("imx_ccm: " fmt , ##args); } while (0)
#else
#define DPRINTF(fmt, args...) do {} while (0)
#endif

static int imx_ccm_post_load(void *opaque, int version_id);

#define TYPE_IMX_CCM "imx_ccm"
#define IMX_CCM(obj) OBJECT_CHECK(IMXCCMState, (obj), TYPE_IMX_CCM)

typedef struct IMXCCMState {
    SysBusDevice parent_obj;

    MemoryRegion iomem;

    uint32_t ccmr;
    uint32_t pdr0;
    uint32_t pdr1;
    uint32_t mpctl;
    uint32_t spctl;
    uint32_t cgr[3];
    uint32_t pmcr0;
    uint32_t pmcr1;

    /* Frequencies precalculated on register changes */
    uint32_t pll_refclk_freq;
    uint32_t mcu_clk_freq;
    uint32_t hsp_clk_freq;
    uint32_t ipg_clk_freq;
} IMXCCMState;

static const VMStateDescription vmstate_imx_ccm = {
    .name = "imx-ccm",
    .version_id = 1,
    .minimum_version_id = 1,
    .minimum_version_id_old = 1,
    .fields = (VMStateField[]) {
        VMSTATE_UINT32(ccmr, IMXCCMState),
        VMSTATE_UINT32(pdr0, IMXCCMState),
        VMSTATE_UINT32(pdr1, IMXCCMState),
        VMSTATE_UINT32(mpctl, IMXCCMState),
        VMSTATE_UINT32(spctl, IMXCCMState),
        VMSTATE_UINT32_ARRAY(cgr, IMXCCMState, 3),
        VMSTATE_UINT32(pmcr0, IMXCCMState),
        VMSTATE_UINT32(pmcr1, IMXCCMState),
        VMSTATE_UINT32(pll_refclk_freq, IMXCCMState),
    },
    .post_load = imx_ccm_post_load,
};

/* CCMR */
#define CCMR_FPME (1<<0)
#define CCMR_MPE  (1<<3)
#define CCMR_MDS  (1<<7)
#define CCMR_FPMF (1<<26)
#define CCMR_PRCS (3<<1)

/* PDR0 */
#define PDR0_MCU_PODF_SHIFT (0)
#define PDR0_MCU_PODF_MASK (0x7)
#define PDR0_MAX_PODF_SHIFT (3)
#define PDR0_MAX_PODF_MASK (0x7)
#define PDR0_IPG_PODF_SHIFT (6)
#define PDR0_IPG_PODF_MASK (0x3)
#define PDR0_NFC_PODF_SHIFT (8)
#define PDR0_NFC_PODF_MASK (0x7)
#define PDR0_HSP_PODF_SHIFT (11)
#define PDR0_HSP_PODF_MASK (0x7)
#define PDR0_PER_PODF_SHIFT (16)
#define PDR0_PER_PODF_MASK (0x1f)
#define PDR0_CSI_PODF_SHIFT (23)
#define PDR0_CSI_PODF_MASK (0x1ff)

#define EXTRACT(value, name) (((value) >> PDR0_##name##_PODF_SHIFT) \
                              & PDR0_##name##_PODF_MASK)
#define INSERT(value, name) (((value) & PDR0_##name##_PODF_MASK) << \
                             PDR0_##name##_PODF_SHIFT)
/* 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)

uint32_t imx_clock_frequency(DeviceState *dev, IMXClk clock)
{
    IMXCCMState *s = IMX_CCM(dev);

    switch (clock) {
    case NOCLK:
        return 0;
    case MCU:
        return s->mcu_clk_freq;
    case HSP:
        return s->hsp_clk_freq;
    case IPG:
        return s->ipg_clk_freq;
    case CLK_32k:
        return CKIL_FREQ;
    }
    return 0;
}

/*
 * Calculate PLL output frequency
 */
static uint32_t calc_pll(uint32_t pllreg, uint32_t base_freq)
{
    int32_t mfn = MFN(pllreg);  /* Numerator */
    uint32_t mfi = MFI(pllreg); /* Integer part */
    uint32_t mfd = 1 + MFD(pllreg); /* Denominator */
    uint32_t pd = 1 + PD(pllreg);   /* Pre-divider */

    if (mfi < 5) {
        mfi = 5;
    }
    /* mfn is 10-bit signed twos-complement */
    mfn <<= 32 - 10;
    mfn >>= 32 - 10;

    return ((2 * (base_freq >> 10) * (mfi * mfd + mfn)) /
            (mfd * pd)) << 10;
}

static void update_clocks(IMXCCMState *s)
{
    /*
     * If we ever emulate more clocks, this should switch to a data-driven
     * approach
     */

    if ((s->ccmr & CCMR_PRCS) == 2) {
        s->pll_refclk_freq = CKIL_FREQ * 1024;
    } else {
        s->pll_refclk_freq = CKIH_FREQ;
    }

    /* ipg_clk_arm aka MCU clock */
    if ((s->ccmr & CCMR_MDS) || !(s->ccmr & CCMR_MPE)) {
        s->mcu_clk_freq = s->pll_refclk_freq;
    } else {
        s->mcu_clk_freq = calc_pll(s->mpctl, s->pll_refclk_freq);
    }

    /* High-speed clock */
    s->hsp_clk_freq = s->mcu_clk_freq / (1 + EXTRACT(s->pdr0, HSP));
    s->ipg_clk_freq = s->hsp_clk_freq / (1 + EXTRACT(s->pdr0, IPG));

    DPRINTF("Clocks: mcu %uMHz, HSP %uMHz, IPG %uHz\n",
            s->mcu_clk_freq / 1000000,
            s->hsp_clk_freq / 1000000,
            s->ipg_clk_freq);
}

static void imx_ccm_reset(DeviceState *dev)
{
    IMXCCMState *s = IMX_CCM(dev);

    s->ccmr = 0x074b0b7b;
    s->pdr0 = 0xff870b48;
    s->pdr1 = 0x49fcfe7f;
    s->mpctl = PLL_PD(1) | PLL_MFD(0) | PLL_MFI(6) | PLL_MFN(0);
    s->cgr[0] = s->cgr[1] = s->cgr[2] = 0xffffffff;
    s->spctl = PLL_PD(1) | PLL_MFD(4) | PLL_MFI(0xc) | PLL_MFN(1);
    s->pmcr0 = 0x80209828;

    update_clocks(s);
}

static uint64_t imx_ccm_read(void *opaque, hwaddr offset,
                                unsigned size)
{
    IMXCCMState *s = (IMXCCMState *)opaque;

    DPRINTF("read(offset=%x)", offset >> 2);
    switch (offset >> 2) {
    case 0: /* CCMR */
        DPRINTF(" ccmr = 0x%x\n", s->ccmr);
        return s->ccmr;
    case 1:
        DPRINTF(" pdr0 = 0x%x\n", s->pdr0);
        return s->pdr0;
    case 2:
        DPRINTF(" pdr1 = 0x%x\n", s->pdr1);
        return s->pdr1;
    case 4:
        DPRINTF(" mpctl = 0x%x\n", s->mpctl);
        return s->mpctl;
    case 6:
        DPRINTF(" spctl = 0x%x\n", s->spctl);
        return s->spctl;
    case 8:
        DPRINTF(" cgr0 = 0x%x\n", s->cgr[0]);
        return s->cgr[0];
    case 9:
        DPRINTF(" cgr1 = 0x%x\n", s->cgr[1]);
        return s->cgr[1];
    case 10:
        DPRINTF(" cgr2 = 0x%x\n", s->cgr[2]);
        return s->cgr[2];
    case 18: /* LTR1 */
        return 0x00004040;
    case 23:
        DPRINTF(" pcmr0 = 0x%x\n", s->pmcr0);
        return s->pmcr0;
    }
    DPRINTF(" return 0\n");
    return 0;
}

static void imx_ccm_write(void *opaque, hwaddr offset,
                          uint64_t value, unsigned size)
{
    IMXCCMState *s = (IMXCCMState *)opaque;

    DPRINTF("write(offset=%x, value = %x)\n",
            offset >> 2, (unsigned int)value);
    switch (offset >> 2) {
    case 0:
        s->ccmr = CCMR_FPMF | (value & 0x3b6fdfff);
        break;
    case 1:
        s->pdr0 = value & 0xff9f3fff;
        break;
    case 2:
        s->pdr1 = value;
        break;
    case 4:
        s->mpctl = value & 0xbfff3fff;
        break;
    case 6:
        s->spctl = value & 0xbfff3fff;
        break;
    case 8:
        s->cgr[0] = value;
        return;
    case 9:
        s->cgr[1] = value;
        return;
    case 10:
        s->cgr[2] = value;
        return;

    default:
        return;
    }
    update_clocks(s);
}

static const struct MemoryRegionOps imx_ccm_ops = {
    .read = imx_ccm_read,
    .write = imx_ccm_write,
    .endianness = DEVICE_NATIVE_ENDIAN,
};

static int imx_ccm_init(SysBusDevice *dev)
{
    IMXCCMState *s = IMX_CCM(dev);

    memory_region_init_io(&s->iomem, OBJECT(dev), &imx_ccm_ops, s,
                          "imx_ccm", 0x1000);
    sysbus_init_mmio(dev, &s->iomem);

    return 0;
}

static int imx_ccm_post_load(void *opaque, int version_id)
{
    IMXCCMState *s = (IMXCCMState *)opaque;

    update_clocks(s);
    return 0;
}

static void imx_ccm_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);

    sbc->init = imx_ccm_init;
    dc->reset = imx_ccm_reset;
    dc->vmsd = &vmstate_imx_ccm;
    dc->desc = "i.MX Clock Control Module";
}

static const TypeInfo imx_ccm_info = {
    .name = TYPE_IMX_CCM,
    .parent = TYPE_SYS_BUS_DEVICE,
    .instance_size = sizeof(IMXCCMState),
    .class_init = imx_ccm_class_init,
};

static void imx_ccm_register_types(void)
{
    type_register_static(&imx_ccm_info);
}

type_init(imx_ccm_register_types)
Commit	Line	Data
bcc181b0 PC	1	/*
	2	* IMX31 Clock Control Module
	3	*
	4	* Copyright (C) 2012 NICTA
	5	*
	6	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	7	* See the COPYING file in the top-level directory.
	8	*
	9	* To get the timer frequencies right, we need to emulate at least part of
	10	* the CCM.
	11	*/
	12
83c9f4ca PB	13	#include "hw/hw.h"
83c9f4ca PB	14	#include "hw/sysbus.h"
9c17d615	15	#include "sysemu/sysemu.h"
0d09e41a	16	#include "hw/arm/imx.h"
bcc181b0 PC	17
	18	#define CKIH_FREQ 26000000 /* 26MHz crystal input */
	19	#define CKIL_FREQ 32768 /* nominal 32khz clock */
	20
	21
	22	//#define DEBUG_CCM 1
	23	#ifdef DEBUG_CCM
	24	#define DPRINTF(fmt, args...) \
	25	do { printf("imx_ccm: " fmt , ##args); } while (0)
	26	#else
	27	#define DPRINTF(fmt, args...) do {} while (0)
	28	#endif
	29
	30	static int imx_ccm_post_load(void *opaque, int version_id);
	31
bcb34c7a AF	32	#define TYPE_IMX_CCM "imx_ccm"
	33	#define IMX_CCM(obj) OBJECT_CHECK(IMXCCMState, (obj), TYPE_IMX_CCM)
	34
	35	typedef struct IMXCCMState {
	36	SysBusDevice parent_obj;
	37
bcc181b0 PC	38	MemoryRegion iomem;
	39
	40	uint32_t ccmr;
	41	uint32_t pdr0;
	42	uint32_t pdr1;
	43	uint32_t mpctl;
	44	uint32_t spctl;
	45	uint32_t cgr[3];
	46	uint32_t pmcr0;
	47	uint32_t pmcr1;
	48
	49	/* Frequencies precalculated on register changes */
	50	uint32_t pll_refclk_freq;
	51	uint32_t mcu_clk_freq;
	52	uint32_t hsp_clk_freq;
	53	uint32_t ipg_clk_freq;
	54	} IMXCCMState;
	55
	56	static const VMStateDescription vmstate_imx_ccm = {
	57	.name = "imx-ccm",
	58	.version_id = 1,
	59	.minimum_version_id = 1,
	60	.minimum_version_id_old = 1,
	61	.fields = (VMStateField[]) {
	62	VMSTATE_UINT32(ccmr, IMXCCMState),
	63	VMSTATE_UINT32(pdr0, IMXCCMState),
	64	VMSTATE_UINT32(pdr1, IMXCCMState),
	65	VMSTATE_UINT32(mpctl, IMXCCMState),
	66	VMSTATE_UINT32(spctl, IMXCCMState),
	67	VMSTATE_UINT32_ARRAY(cgr, IMXCCMState, 3),
	68	VMSTATE_UINT32(pmcr0, IMXCCMState),
	69	VMSTATE_UINT32(pmcr1, IMXCCMState),
	70	VMSTATE_UINT32(pll_refclk_freq, IMXCCMState),
	71	},
	72	.post_load = imx_ccm_post_load,
	73	};
	74
	75	/* CCMR */
	76	#define CCMR_FPME (1<<0)
	77	#define CCMR_MPE (1<<3)
	78	#define CCMR_MDS (1<<7)
	79	#define CCMR_FPMF (1<<26)
	80	#define CCMR_PRCS (3<<1)
	81
	82	/* PDR0 */
	83	#define PDR0_MCU_PODF_SHIFT (0)
	84	#define PDR0_MCU_PODF_MASK (0x7)
	85	#define PDR0_MAX_PODF_SHIFT (3)
	86	#define PDR0_MAX_PODF_MASK (0x7)
	87	#define PDR0_IPG_PODF_SHIFT (6)
	88	#define PDR0_IPG_PODF_MASK (0x3)
	89	#define PDR0_NFC_PODF_SHIFT (8)
	90	#define PDR0_NFC_PODF_MASK (0x7)
	91	#define PDR0_HSP_PODF_SHIFT (11)
	92	#define PDR0_HSP_PODF_MASK (0x7)
	93	#define PDR0_PER_PODF_SHIFT (16)
	94	#define PDR0_PER_PODF_MASK (0x1f)
	95	#define PDR0_CSI_PODF_SHIFT (23)
	96	#define PDR0_CSI_PODF_MASK (0x1ff)
	97
	98	#define EXTRACT(value, name) (((value) >> PDR0_##name##_PODF_SHIFT) \
	99	& PDR0_##name##_PODF_MASK)
	100	#define INSERT(value, name) (((value) & PDR0_##name##_PODF_MASK) << \
	101	PDR0_##name##_PODF_SHIFT)
102	/* PLL control registers */
103	#define PD(v) (((v) >> 26) & 0xf)
104	#define MFD(v) (((v) >> 16) & 0x3ff)
105	#define MFI(v) (((v) >> 10) & 0xf);
106	#define MFN(v) ((v) & 0x3ff)
107
108	#define PLL_PD(x) (((x) & 0xf) << 26)
109	#define PLL_MFD(x) (((x) & 0x3ff) << 16)
110	#define PLL_MFI(x) (((x) & 0xf) << 10)
111	#define PLL_MFN(x) (((x) & 0x3ff) << 0)
112
113	uint32_t imx_clock_frequency(DeviceState *dev, IMXClk clock)
114	{
bcb34c7a	115	IMXCCMState *s = IMX_CCM(dev);
bcc181b0 PC	116
	117	switch (clock) {
	118	case NOCLK:
	119	return 0;
	120	case MCU:
	121	return s->mcu_clk_freq;
	122	case HSP:
	123	return s->hsp_clk_freq;
	124	case IPG:
	125	return s->ipg_clk_freq;
	126	case CLK_32k:
	127	return CKIL_FREQ;
	128	}
	129	return 0;
	130	}
	131
	132	/*
	133	* Calculate PLL output frequency
	134	*/
	135	static uint32_t calc_pll(uint32_t pllreg, uint32_t base_freq)
	136	{
	137	int32_t mfn = MFN(pllreg); /* Numerator */
	138	uint32_t mfi = MFI(pllreg); /* Integer part */
	139	uint32_t mfd = 1 + MFD(pllreg); /* Denominator */
	140	uint32_t pd = 1 + PD(pllreg); /* Pre-divider */
	141
	142	if (mfi < 5) {
	143	mfi = 5;
	144	}
	145	/* mfn is 10-bit signed twos-complement */
	146	mfn <<= 32 - 10;
	147	mfn >>= 32 - 10;
	148
	149	return ((2 * (base_freq >> 10) * (mfi * mfd + mfn)) /
	150	(mfd * pd)) << 10;
	151	}
	152
	153	static void update_clocks(IMXCCMState *s)
	154	{
	155	/*
	156	* If we ever emulate more clocks, this should switch to a data-driven
	157	* approach
	158	*/
	159
f3c8fac2	160	if ((s->ccmr & CCMR_PRCS) == 2) {
bcc181b0 PC	161	s->pll_refclk_freq = CKIL_FREQ * 1024;
	162	} else {
	163	s->pll_refclk_freq = CKIH_FREQ;
	164	}
	165
	166	/* ipg_clk_arm aka MCU clock */
	167	if ((s->ccmr & CCMR_MDS) \|\| !(s->ccmr & CCMR_MPE)) {
	168	s->mcu_clk_freq = s->pll_refclk_freq;
	169	} else {
	170	s->mcu_clk_freq = calc_pll(s->mpctl, s->pll_refclk_freq);
	171	}
	172
	173	/* High-speed clock */
	174	s->hsp_clk_freq = s->mcu_clk_freq / (1 + EXTRACT(s->pdr0, HSP));
	175	s->ipg_clk_freq = s->hsp_clk_freq / (1 + EXTRACT(s->pdr0, IPG));
	176
	177	DPRINTF("Clocks: mcu %uMHz, HSP %uMHz, IPG %uHz\n",
	178	s->mcu_clk_freq / 1000000,
	179	s->hsp_clk_freq / 1000000,
	180	s->ipg_clk_freq);
	181	}
	182
	183	static void imx_ccm_reset(DeviceState *dev)
	184	{
bcb34c7a	185	IMXCCMState *s = IMX_CCM(dev);
bcc181b0 PC	186
	187	s->ccmr = 0x074b0b7b;
	188	s->pdr0 = 0xff870b48;
	189	s->pdr1 = 0x49fcfe7f;
	190	s->mpctl = PLL_PD(1) \| PLL_MFD(0) \| PLL_MFI(6) \| PLL_MFN(0);
	191	s->cgr[0] = s->cgr[1] = s->cgr[2] = 0xffffffff;
	192	s->spctl = PLL_PD(1) \| PLL_MFD(4) \| PLL_MFI(0xc) \| PLL_MFN(1);
	193	s->pmcr0 = 0x80209828;
	194
	195	update_clocks(s);
	196	}
	197
a8170e5e	198	static uint64_t imx_ccm_read(void *opaque, hwaddr offset,
bcc181b0 PC	199	unsigned size)
	200	{
	201	IMXCCMState s = (IMXCCMState )opaque;
	202
	203	DPRINTF("read(offset=%x)", offset >> 2);
	204	switch (offset >> 2) {
	205	case 0: /* CCMR */
	206	DPRINTF(" ccmr = 0x%x\n", s->ccmr);
	207	return s->ccmr;
	208	case 1:
	209	DPRINTF(" pdr0 = 0x%x\n", s->pdr0);
	210	return s->pdr0;
	211	case 2:
	212	DPRINTF(" pdr1 = 0x%x\n", s->pdr1);
	213	return s->pdr1;
	214	case 4:
	215	DPRINTF(" mpctl = 0x%x\n", s->mpctl);
	216	return s->mpctl;
	217	case 6:
	218	DPRINTF(" spctl = 0x%x\n", s->spctl);
	219	return s->spctl;
	220	case 8:
	221	DPRINTF(" cgr0 = 0x%x\n", s->cgr[0]);
	222	return s->cgr[0];
	223	case 9:
	224	DPRINTF(" cgr1 = 0x%x\n", s->cgr[1]);
	225	return s->cgr[1];
	226	case 10:
	227	DPRINTF(" cgr2 = 0x%x\n", s->cgr[2]);
	228	return s->cgr[2];
	229	case 18: /* LTR1 */
	230	return 0x00004040;
	231	case 23:
	232	DPRINTF(" pcmr0 = 0x%x\n", s->pmcr0);
	233	return s->pmcr0;
	234	}
	235	DPRINTF(" return 0\n");
	236	return 0;
	237	}
	238
a8170e5e	239	static void imx_ccm_write(void *opaque, hwaddr offset,
bcc181b0 PC	240	uint64_t value, unsigned size)
	241	{
	242	IMXCCMState s = (IMXCCMState )opaque;
	243
	244	DPRINTF("write(offset=%x, value = %x)\n",
	245	offset >> 2, (unsigned int)value);
	246	switch (offset >> 2) {
	247	case 0:
	248	s->ccmr = CCMR_FPMF \| (value & 0x3b6fdfff);
	249	break;
	250	case 1:
	251	s->pdr0 = value & 0xff9f3fff;
	252	break;
	253	case 2:
	254	s->pdr1 = value;
	255	break;
	256	case 4:
	257	s->mpctl = value & 0xbfff3fff;
	258	break;
	259	case 6:
	260	s->spctl = value & 0xbfff3fff;
	261	break;
	262	case 8:
	263	s->cgr[0] = value;
	264	return;
	265	case 9:
	266	s->cgr[1] = value;
	267	return;
	268	case 10:
	269	s->cgr[2] = value;
	270	return;
	271
	272	default:
	273	return;
	274	}
	275	update_clocks(s);
	276	}
	277
	278	static const struct MemoryRegionOps imx_ccm_ops = {
	279	.read = imx_ccm_read,
	280	.write = imx_ccm_write,
	281	.endianness = DEVICE_NATIVE_ENDIAN,
	282	};
	283
	284	static int imx_ccm_init(SysBusDevice *dev)
	285	{
bcb34c7a	286	IMXCCMState *s = IMX_CCM(dev);
bcc181b0	287
3c161542 PB	288	memory_region_init_io(&s->iomem, OBJECT(dev), &imx_ccm_ops, s,
3c161542 PB	289	"imx_ccm", 0x1000);
bcc181b0 PC	290	sysbus_init_mmio(dev, &s->iomem);
	291
	292	return 0;
	293	}
	294
	295	static int imx_ccm_post_load(void *opaque, int version_id)
	296	{
	297	IMXCCMState s = (IMXCCMState )opaque;
	298
	299	update_clocks(s);
	300	return 0;
	301	}
	302
	303	static void imx_ccm_class_init(ObjectClass klass, void data)
	304	{
	305	DeviceClass *dc = DEVICE_CLASS(klass);
	306	SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
	307
	308	sbc->init = imx_ccm_init;
	309	dc->reset = imx_ccm_reset;
	310	dc->vmsd = &vmstate_imx_ccm;
	311	dc->desc = "i.MX Clock Control Module";
	312	}
	313
8c43a6f0	314	static const TypeInfo imx_ccm_info = {
bcb34c7a	315	.name = TYPE_IMX_CCM,
bcc181b0 PC	316	.parent = TYPE_SYS_BUS_DEVICE,
	317	.instance_size = sizeof(IMXCCMState),
	318	.class_init = imx_ccm_class_init,
	319	};
	320
	321	static void imx_ccm_register_types(void)
	322	{
	323	type_register_static(&imx_ccm_info);
	324	}
	325
	326	type_init(imx_ccm_register_types)