[qemu.git] / hw / misc / imx25_ccm.c

/*
 * IMX25 Clock Control Module
 *
 * Copyright (C) 2012 NICTA
 * Updated by Jean-Christophe Dubois <[email protected]>
 *
 * 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/misc/imx25_ccm.h"

#ifndef DEBUG_IMX25_CCM
#define DEBUG_IMX25_CCM 0
#endif

#define DPRINTF(fmt, args...) \
    do { \
        if (DEBUG_IMX25_CCM) { \
            fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX25_CCM, \
                                             __func__, ##args); \
        } \
    } while (0)

static char const *imx25_ccm_reg_name(uint32_t reg)
{
    static char unknown[20];

    switch (reg) {
    case IMX25_CCM_MPCTL_REG:
        return "mpctl";
    case IMX25_CCM_UPCTL_REG:
        return "upctl";
    case IMX25_CCM_CCTL_REG:
        return "cctl";
    case IMX25_CCM_CGCR0_REG:
        return "cgcr0";
    case IMX25_CCM_CGCR1_REG:
        return "cgcr1";
    case IMX25_CCM_CGCR2_REG:
        return "cgcr2";
    case IMX25_CCM_PCDR0_REG:
        return "pcdr0";
    case IMX25_CCM_PCDR1_REG:
        return "pcdr1";
    case IMX25_CCM_PCDR2_REG:
        return "pcdr2";
    case IMX25_CCM_PCDR3_REG:
        return "pcdr3";
    case IMX25_CCM_RCSR_REG:
        return "rcsr";
    case IMX25_CCM_CRDR_REG:
        return "crdr";
    case IMX25_CCM_DCVR0_REG:
        return "dcvr0";
    case IMX25_CCM_DCVR1_REG:
        return "dcvr1";
    case IMX25_CCM_DCVR2_REG:
        return "dcvr2";
    case IMX25_CCM_DCVR3_REG:
        return "dcvr3";
    case IMX25_CCM_LTR0_REG:
        return "ltr0";
    case IMX25_CCM_LTR1_REG:
        return "ltr1";
    case IMX25_CCM_LTR2_REG:
        return "ltr2";
    case IMX25_CCM_LTR3_REG:
        return "ltr3";
    case IMX25_CCM_LTBR0_REG:
        return "ltbr0";
    case IMX25_CCM_LTBR1_REG:
        return "ltbr1";
    case IMX25_CCM_PMCR0_REG:
        return "pmcr0";
    case IMX25_CCM_PMCR1_REG:
        return "pmcr1";
    case IMX25_CCM_PMCR2_REG:
        return "pmcr2";
    case IMX25_CCM_MCR_REG:
        return "mcr";
    case IMX25_CCM_LPIMR0_REG:
        return "lpimr0";
    case IMX25_CCM_LPIMR1_REG:
        return "lpimr1";
    default:
        sprintf(unknown, "[%d ?]", reg);
        return unknown;
    }
}
#define CKIH_FREQ 24000000 /* 24MHz crystal input */

static const VMStateDescription vmstate_imx25_ccm = {
    .name = TYPE_IMX25_CCM,
    .version_id = 1,
    .minimum_version_id = 1,
    .fields = (VMStateField[]) {
        VMSTATE_UINT32_ARRAY(reg, IMX25CCMState, IMX25_CCM_MAX_REG),
        VMSTATE_END_OF_LIST()
    },
};

static uint32_t imx25_ccm_get_mpll_clk(IMXCCMState *dev)
{
    uint32_t freq;
    IMX25CCMState *s = IMX25_CCM(dev);

    if (EXTRACT(s->reg[IMX25_CCM_CCTL_REG], MPLL_BYPASS)) {
        freq = CKIH_FREQ;
    } else {
        freq = imx_ccm_calc_pll(s->reg[IMX25_CCM_MPCTL_REG], CKIH_FREQ);
    }

    DPRINTF("freq = %d\n", freq);

    return freq;
}

static uint32_t imx25_ccm_get_upll_clk(IMXCCMState *dev)
{
    uint32_t freq = 0;
    IMX25CCMState *s = IMX25_CCM(dev);

    if (!EXTRACT(s->reg[IMX25_CCM_CCTL_REG], UPLL_DIS)) {
        freq = imx_ccm_calc_pll(s->reg[IMX25_CCM_UPCTL_REG], CKIH_FREQ);
    }

    DPRINTF("freq = %d\n", freq);

    return freq;
}

static uint32_t imx25_ccm_get_mcu_clk(IMXCCMState *dev)
{
    uint32_t freq;
    IMX25CCMState *s = IMX25_CCM(dev);

    freq = imx25_ccm_get_mpll_clk(dev);

    if (EXTRACT(s->reg[IMX25_CCM_CCTL_REG], ARM_SRC)) {
        freq = (freq * 3 / 4);
    }

    freq = freq / (1 + EXTRACT(s->reg[IMX25_CCM_CCTL_REG], ARM_CLK_DIV));

    DPRINTF("freq = %d\n", freq);

    return freq;
}

static uint32_t imx25_ccm_get_ahb_clk(IMXCCMState *dev)
{
    uint32_t freq;
    IMX25CCMState *s = IMX25_CCM(dev);

    freq = imx25_ccm_get_mcu_clk(dev)
           / (1 + EXTRACT(s->reg[IMX25_CCM_CCTL_REG], AHB_CLK_DIV));

    DPRINTF("freq = %d\n", freq);

    return freq;
}

static uint32_t imx25_ccm_get_ipg_clk(IMXCCMState *dev)
{
    uint32_t freq;

    freq = imx25_ccm_get_ahb_clk(dev) / 2;

    DPRINTF("freq = %d\n", freq);

    return freq;
}

static uint32_t imx25_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
{
    uint32_t freq = 0;
    DPRINTF("Clock = %d)\n", clock);

    switch (clock) {
    case NOCLK:
        break;
    case CLK_MPLL:
        freq = imx25_ccm_get_mpll_clk(dev);
        break;
    case CLK_UPLL:
        freq = imx25_ccm_get_upll_clk(dev);
        break;
    case CLK_MCU:
        freq = imx25_ccm_get_mcu_clk(dev);
        break;
    case CLK_AHB:
        freq = imx25_ccm_get_ahb_clk(dev);
        break;
    case CLK_IPG:
        freq = imx25_ccm_get_ipg_clk(dev);
        break;
    case CLK_32k:
        freq = CKIL_FREQ;
        break;
    default:
        qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: unsupported clock %d\n",
                      TYPE_IMX25_CCM, __func__, clock);
        break;
    }

    DPRINTF("Clock = %d) = %d\n", clock, freq);

    return freq;
}

static void imx25_ccm_reset(DeviceState *dev)
{
    IMX25CCMState *s = IMX25_CCM(dev);

    DPRINTF("\n");

    memset(s->reg, 0, IMX25_CCM_MAX_REG * sizeof(uint32_t));
    s->reg[IMX25_CCM_MPCTL_REG] = 0x800b2c01;
    s->reg[IMX25_CCM_UPCTL_REG] = 0x84042800;
    /* 
     * The value below gives:
     * CPU = 133 MHz, AHB = 66,5 MHz, IPG = 33 MHz. 
     */
    s->reg[IMX25_CCM_CCTL_REG]  = 0xd0030000;
    s->reg[IMX25_CCM_CGCR0_REG] = 0x028A0100;
    s->reg[IMX25_CCM_CGCR1_REG] = 0x04008100;
    s->reg[IMX25_CCM_CGCR2_REG] = 0x00000438;
    s->reg[IMX25_CCM_PCDR0_REG] = 0x01010101;
    s->reg[IMX25_CCM_PCDR1_REG] = 0x01010101;
    s->reg[IMX25_CCM_PCDR2_REG] = 0x01010101;
    s->reg[IMX25_CCM_PCDR3_REG] = 0x01010101;
    s->reg[IMX25_CCM_PMCR0_REG] = 0x00A00000;
    s->reg[IMX25_CCM_PMCR1_REG] = 0x0000A030;
    s->reg[IMX25_CCM_PMCR2_REG] = 0x0000A030;
    s->reg[IMX25_CCM_MCR_REG]   = 0x43000000;

    /*
     * default boot will change the reset values to allow:
     * CPU = 399 MHz, AHB = 133 MHz, IPG = 66,5 MHz. 
     * For some reason, this doesn't work. With the value below, linux
     * detects a 88 MHz IPG CLK instead of 66,5 MHz.
    s->reg[IMX25_CCM_CCTL_REG]  = 0x20032000;
     */
}

static uint64_t imx25_ccm_read(void *opaque, hwaddr offset, unsigned size)
{
    uint32 value = 0;
    IMX25CCMState *s = (IMX25CCMState *)opaque;

    if (offset < 0x70) {
        value = s->reg[offset >> 2];
    } else {
        qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
                      HWADDR_PRIx "\n", TYPE_IMX25_CCM, __func__, offset);
    }

    DPRINTF("reg[%s] => 0x%" PRIx32 "\n", imx25_ccm_reg_name(offset >> 2),
            value);

    return value;
}

static void imx25_ccm_write(void *opaque, hwaddr offset, uint64_t value,
                            unsigned size)
{
    IMX25CCMState *s = (IMX25CCMState *)opaque;

    DPRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx25_ccm_reg_name(offset >> 2),
            (uint32_t)value);

    if (offset < 0x70) {
        /*
         * We will do a better implementation later. In particular some bits
         * cannot be written to.
         */
        s->reg[offset >> 2] = value;
    } else {
        qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
                      HWADDR_PRIx "\n", TYPE_IMX25_CCM, __func__, offset);
    }
}

static const struct MemoryRegionOps imx25_ccm_ops = {
    .read = imx25_ccm_read,
    .write = imx25_ccm_write,
    .endianness = DEVICE_NATIVE_ENDIAN,
    .valid = {
        /*
         * Our device would not work correctly if the guest was doing
         * unaligned access. This might not be a limitation on the real
         * device but in practice there is no reason for a guest to access
         * this device unaligned.
         */
        .min_access_size = 4,
        .max_access_size = 4,
        .unaligned = false,
    },
};

static void imx25_ccm_init(Object *obj)
{
    DeviceState *dev = DEVICE(obj);
    SysBusDevice *sd = SYS_BUS_DEVICE(obj);
    IMX25CCMState *s = IMX25_CCM(obj);

    memory_region_init_io(&s->iomem, OBJECT(dev), &imx25_ccm_ops, s,
                          TYPE_IMX25_CCM, 0x1000);
    sysbus_init_mmio(sd, &s->iomem);
}

static void imx25_ccm_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    IMXCCMClass *ccm = IMX_CCM_CLASS(klass);

    dc->reset = imx25_ccm_reset;
    dc->vmsd = &vmstate_imx25_ccm;
    dc->desc = "i.MX25 Clock Control Module";

    ccm->get_clock_frequency = imx25_ccm_get_clock_frequency;
}

static const TypeInfo imx25_ccm_info = {
    .name          = TYPE_IMX25_CCM,
    .parent        = TYPE_IMX_CCM,
    .instance_size = sizeof(IMX25CCMState),
    .instance_init = imx25_ccm_init,
    .class_init    = imx25_ccm_class_init,
};

static void imx25_ccm_register_types(void)
{
    type_register_static(&imx25_ccm_info);
}

type_init(imx25_ccm_register_types)
Commit	Line	Data
92eccc6e JCD	1	/*
	2	* IMX25 Clock Control Module
	3	*
	4	* Copyright (C) 2012 NICTA
	5	* Updated by Jean-Christophe Dubois <[email protected]>
	6	*
	7	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	8	* See the COPYING file in the top-level directory.
	9	*
	10	* To get the timer frequencies right, we need to emulate at least part of
	11	* the CCM.
	12	*/
	13
	14	#include "hw/misc/imx25_ccm.h"
	15
	16	#ifndef DEBUG_IMX25_CCM
	17	#define DEBUG_IMX25_CCM 0
	18	#endif
	19
	20	#define DPRINTF(fmt, args...) \
	21	do { \
	22	if (DEBUG_IMX25_CCM) { \
	23	fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX25_CCM, \
	24	__func__, ##args); \
	25	} \
	26	} while (0)
	27
	28	static char const *imx25_ccm_reg_name(uint32_t reg)
	29	{
	30	static char unknown[20];
	31
	32	switch (reg) {
	33	case IMX25_CCM_MPCTL_REG:
	34	return "mpctl";
	35	case IMX25_CCM_UPCTL_REG:
	36	return "upctl";
	37	case IMX25_CCM_CCTL_REG:
	38	return "cctl";
	39	case IMX25_CCM_CGCR0_REG:
	40	return "cgcr0";
	41	case IMX25_CCM_CGCR1_REG:
	42	return "cgcr1";
	43	case IMX25_CCM_CGCR2_REG:
	44	return "cgcr2";
	45	case IMX25_CCM_PCDR0_REG:
	46	return "pcdr0";
	47	case IMX25_CCM_PCDR1_REG:
	48	return "pcdr1";
	49	case IMX25_CCM_PCDR2_REG:
	50	return "pcdr2";
	51	case IMX25_CCM_PCDR3_REG:
	52	return "pcdr3";
	53	case IMX25_CCM_RCSR_REG:
	54	return "rcsr";
	55	case IMX25_CCM_CRDR_REG:
	56	return "crdr";
	57	case IMX25_CCM_DCVR0_REG:
	58	return "dcvr0";
	59	case IMX25_CCM_DCVR1_REG:
	60	return "dcvr1";
	61	case IMX25_CCM_DCVR2_REG:
	62	return "dcvr2";
	63	case IMX25_CCM_DCVR3_REG:
	64	return "dcvr3";
65	case IMX25_CCM_LTR0_REG:
66	return "ltr0";
67	case IMX25_CCM_LTR1_REG:
68	return "ltr1";
69	case IMX25_CCM_LTR2_REG:
70	return "ltr2";
71	case IMX25_CCM_LTR3_REG:
72	return "ltr3";
73	case IMX25_CCM_LTBR0_REG:
74	return "ltbr0";
75	case IMX25_CCM_LTBR1_REG:
76	return "ltbr1";
77	case IMX25_CCM_PMCR0_REG:
78	return "pmcr0";
79	case IMX25_CCM_PMCR1_REG:
80	return "pmcr1";
81	case IMX25_CCM_PMCR2_REG:
82	return "pmcr2";
83	case IMX25_CCM_MCR_REG:
84	return "mcr";
85	case IMX25_CCM_LPIMR0_REG:
86	return "lpimr0";
87	case IMX25_CCM_LPIMR1_REG:
88	return "lpimr1";
89	default:
90	sprintf(unknown, "[%d ?]", reg);
91	return unknown;
92	}
93	}
94	#define CKIH_FREQ 24000000 /* 24MHz crystal input */
95
96	static const VMStateDescription vmstate_imx25_ccm = {
97	.name = TYPE_IMX25_CCM,
98	.version_id = 1,
99	.minimum_version_id = 1,
100	.fields = (VMStateField[]) {
101	VMSTATE_UINT32_ARRAY(reg, IMX25CCMState, IMX25_CCM_MAX_REG),
102	VMSTATE_END_OF_LIST()
103	},
104	};
105
106	static uint32_t imx25_ccm_get_mpll_clk(IMXCCMState *dev)
107	{
108	uint32_t freq;
109	IMX25CCMState *s = IMX25_CCM(dev);
110
111	if (EXTRACT(s->reg[IMX25_CCM_CCTL_REG], MPLL_BYPASS)) {
112	freq = CKIH_FREQ;
113	} else {
114	freq = imx_ccm_calc_pll(s->reg[IMX25_CCM_MPCTL_REG], CKIH_FREQ);
115	}
116
117	DPRINTF("freq = %d\n", freq);
118
119	return freq;
120	}
121
122	static uint32_t imx25_ccm_get_upll_clk(IMXCCMState *dev)
123	{
124	uint32_t freq = 0;
125	IMX25CCMState *s = IMX25_CCM(dev);
126
127	if (!EXTRACT(s->reg[IMX25_CCM_CCTL_REG], UPLL_DIS)) {
128	freq = imx_ccm_calc_pll(s->reg[IMX25_CCM_UPCTL_REG], CKIH_FREQ);
129	}
130
131	DPRINTF("freq = %d\n", freq);
132
133	return freq;
134	}
135
136	static uint32_t imx25_ccm_get_mcu_clk(IMXCCMState *dev)
137	{
138	uint32_t freq;
139	IMX25CCMState *s = IMX25_CCM(dev);
140
141	freq = imx25_ccm_get_mpll_clk(dev);
142
143	if (EXTRACT(s->reg[IMX25_CCM_CCTL_REG], ARM_SRC)) {
144	freq = (freq * 3 / 4);
145	}
146
147	freq = freq / (1 + EXTRACT(s->reg[IMX25_CCM_CCTL_REG], ARM_CLK_DIV));
148
149	DPRINTF("freq = %d\n", freq);
150
151	return freq;
152	}
153
154	static uint32_t imx25_ccm_get_ahb_clk(IMXCCMState *dev)
155	{
156	uint32_t freq;
157	IMX25CCMState *s = IMX25_CCM(dev);
158
159	freq = imx25_ccm_get_mcu_clk(dev)
160	/ (1 + EXTRACT(s->reg[IMX25_CCM_CCTL_REG], AHB_CLK_DIV));
161
162	DPRINTF("freq = %d\n", freq);
163
164	return freq;
165	}
166
167	static uint32_t imx25_ccm_get_ipg_clk(IMXCCMState *dev)
168	{
169	uint32_t freq;
170
171	freq = imx25_ccm_get_ahb_clk(dev) / 2;
172
173	DPRINTF("freq = %d\n", freq);
174
175	return freq;
176	}
177
178	static uint32_t imx25_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
179	{
180	uint32_t freq = 0;
181	DPRINTF("Clock = %d)\n", clock);
182
183	switch (clock) {
184	case NOCLK:
185	break;
186	case CLK_MPLL:
187	freq = imx25_ccm_get_mpll_clk(dev);
188	break;
189	case CLK_UPLL:
190	freq = imx25_ccm_get_upll_clk(dev);
191	break;
192	case CLK_MCU:
193	freq = imx25_ccm_get_mcu_clk(dev);
194	break;
195	case CLK_AHB:
196	freq = imx25_ccm_get_ahb_clk(dev);
197	break;
198	case CLK_IPG:
199	freq = imx25_ccm_get_ipg_clk(dev);
200	break;
201	case CLK_32k:
202	freq = CKIL_FREQ;
203	break;
204	default:
205	qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: unsupported clock %d\n",
206	TYPE_IMX25_CCM, __func__, clock);
207	break;
208	}
209
210	DPRINTF("Clock = %d) = %d\n", clock, freq);
211
212	return freq;
213	}
214
215	static void imx25_ccm_reset(DeviceState *dev)
216	{
217	IMX25CCMState *s = IMX25_CCM(dev);
218
219	DPRINTF("\n");
220
221	memset(s->reg, 0, IMX25_CCM_MAX_REG * sizeof(uint32_t));
222	s->reg[IMX25_CCM_MPCTL_REG] = 0x800b2c01;
223	s->reg[IMX25_CCM_UPCTL_REG] = 0x84042800;
224	/*
225	* The value below gives:
226	* CPU = 133 MHz, AHB = 66,5 MHz, IPG = 33 MHz.
227	*/
228	s->reg[IMX25_CCM_CCTL_REG] = 0xd0030000;
229	s->reg[IMX25_CCM_CGCR0_REG] = 0x028A0100;
230	s->reg[IMX25_CCM_CGCR1_REG] = 0x04008100;
231	s->reg[IMX25_CCM_CGCR2_REG] = 0x00000438;
232	s->reg[IMX25_CCM_PCDR0_REG] = 0x01010101;
233	s->reg[IMX25_CCM_PCDR1_REG] = 0x01010101;
234	s->reg[IMX25_CCM_PCDR2_REG] = 0x01010101;
235	s->reg[IMX25_CCM_PCDR3_REG] = 0x01010101;
236	s->reg[IMX25_CCM_PMCR0_REG] = 0x00A00000;
237	s->reg[IMX25_CCM_PMCR1_REG] = 0x0000A030;
238	s->reg[IMX25_CCM_PMCR2_REG] = 0x0000A030;
239	s->reg[IMX25_CCM_MCR_REG] = 0x43000000;
240
241	/*
242	* default boot will change the reset values to allow:
243	* CPU = 399 MHz, AHB = 133 MHz, IPG = 66,5 MHz.
244	* For some reason, this doesn't work. With the value below, linux
245	* detects a 88 MHz IPG CLK instead of 66,5 MHz.
246	s->reg[IMX25_CCM_CCTL_REG] = 0x20032000;
247	*/
248	}
249
250	static uint64_t imx25_ccm_read(void *opaque, hwaddr offset, unsigned size)
251	{
252	uint32 value = 0;
253	IMX25CCMState s = (IMX25CCMState )opaque;
254
255	if (offset < 0x70) {
256	value = s->reg[offset >> 2];
257	} else {
258	qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
259	HWADDR_PRIx "\n", TYPE_IMX25_CCM, __func__, offset);
260	}
261
262	DPRINTF("reg[%s] => 0x%" PRIx32 "\n", imx25_ccm_reg_name(offset >> 2),
263	value);
264
265	return value;
266	}
267
268	static void imx25_ccm_write(void *opaque, hwaddr offset, uint64_t value,
269	unsigned size)
270	{
271	IMX25CCMState s = (IMX25CCMState )opaque;
272
273	DPRINTF("reg[%s] <= 0x%" PRIx32 "\n", imx25_ccm_reg_name(offset >> 2),
274	(uint32_t)value);
275
276	if (offset < 0x70) {
277	/*
278	* We will do a better implementation later. In particular some bits
279	* cannot be written to.
280	*/
281	s->reg[offset >> 2] = value;
282	} else {
283	qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
284	HWADDR_PRIx "\n", TYPE_IMX25_CCM, __func__, offset);
285	}
286	}
287
288	static const struct MemoryRegionOps imx25_ccm_ops = {
289	.read = imx25_ccm_read,
290	.write = imx25_ccm_write,
291	.endianness = DEVICE_NATIVE_ENDIAN,
292	.valid = {
293	/*
294	* Our device would not work correctly if the guest was doing
295	* unaligned access. This might not be a limitation on the real
296	* device but in practice there is no reason for a guest to access
297	* this device unaligned.
298	*/
299	.min_access_size = 4,
300	.max_access_size = 4,
301	.unaligned = false,
302	},
303	};
304
305	static void imx25_ccm_init(Object *obj)
306	{
307	DeviceState *dev = DEVICE(obj);
308	SysBusDevice *sd = SYS_BUS_DEVICE(obj);
309	IMX25CCMState *s = IMX25_CCM(obj);
310
311	memory_region_init_io(&s->iomem, OBJECT(dev), &imx25_ccm_ops, s,
312	TYPE_IMX25_CCM, 0x1000);
313	sysbus_init_mmio(sd, &s->iomem);
314	}
315
316	static void imx25_ccm_class_init(ObjectClass klass, void data)
317	{
318	DeviceClass *dc = DEVICE_CLASS(klass);
319	IMXCCMClass *ccm = IMX_CCM_CLASS(klass);
320
321	dc->reset = imx25_ccm_reset;
322	dc->vmsd = &vmstate_imx25_ccm;
323	dc->desc = "i.MX25 Clock Control Module";
324
325	ccm->get_clock_frequency = imx25_ccm_get_clock_frequency;
326	}
327
328	static const TypeInfo imx25_ccm_info = {
329	.name = TYPE_IMX25_CCM,
330	.parent = TYPE_IMX_CCM,
331	.instance_size = sizeof(IMX25CCMState),
332	.instance_init = imx25_ccm_init,
333	.class_init = imx25_ccm_class_init,
334	};
335
336	static void imx25_ccm_register_types(void)
337	{
338	type_register_static(&imx25_ccm_info);
339	}
340
341	type_init(imx25_ccm_register_types)