arch/arm/mach-shmobile/clock-sh7367.c - third_party/linux - Git at Google

 /*
  * SH7367 clock framework support
  *
  * Copyright (C) 2010  Magnus Damm
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2 of the License.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/io.h>
 #include <linux/sh_clk.h>
 #include <linux/clkdev.h>
 #include <mach/common.h>

 /* SH7367 registers */
 #define RTFRQCR    0xe6150000
 #define SYFRQCR    0xe6150004
 #define CMFRQCR    0xe61500E0
 #define VCLKCR1    0xe6150008
 #define VCLKCR2    0xe615000C
 #define VCLKCR3    0xe615001C
 #define SCLKACR    0xe6150010
 #define SCLKBCR    0xe6150014
 #define SUBUSBCKCR 0xe6158080
 #define SPUCKCR    0xe6150084
 #define MSUCKCR    0xe6150088
 #define MVI3CKCR   0xe6150090
 #define VOUCKCR    0xe6150094
 #define MFCK1CR    0xe6150098
 #define MFCK2CR    0xe615009C
 #define PLLC1CR    0xe6150028
 #define PLLC2CR    0xe615002C
 #define RTMSTPCR0  0xe6158030
 #define RTMSTPCR2  0xe6158038
 #define SYMSTPCR0  0xe6158040
 #define SYMSTPCR2  0xe6158048
 #define CMMSTPCR0  0xe615804c

 /* Fixed 32 KHz root clock from EXTALR pin */
 static struct clk r_clk = {
 	.rate           = 32768,
 };

 /*
  * 26MHz default rate for the EXTALB1 root input clock.
  * If needed, reset this with clk_set_rate() from the platform code.
  */
 struct clk sh7367_extalb1_clk = {
 	.rate		= 26666666,
 };

 /*
  * 48MHz default rate for the EXTAL2 root input clock.
  * If needed, reset this with clk_set_rate() from the platform code.
  */
 struct clk sh7367_extal2_clk = {
 	.rate		= 48000000,
 };

 /* A fixed divide-by-2 block */
 static unsigned long div2_recalc(struct clk *clk)
 {
 	return clk->parent->rate / 2;
 }

 static struct clk_ops div2_clk_ops = {
 	.recalc		= div2_recalc,
 };

 /* Divide extalb1 by two */
 static struct clk extalb1_div2_clk = {
 	.ops		= &div2_clk_ops,
 	.parent		= &sh7367_extalb1_clk,
 };

 /* Divide extal2 by two */
 static struct clk extal2_div2_clk = {
 	.ops		= &div2_clk_ops,
 	.parent		= &sh7367_extal2_clk,
 };

 /* PLLC1 */
 static unsigned long pllc1_recalc(struct clk *clk)
 {
 	unsigned long mult = 1;

 	if (__raw_readl(PLLC1CR) & (1 << 14))
 		mult = (((__raw_readl(RTFRQCR) >> 24) & 0x3f) + 1) * 2;

 	return clk->parent->rate * mult;
 }

 static struct clk_ops pllc1_clk_ops = {
 	.recalc		= pllc1_recalc,
 };

 static struct clk pllc1_clk = {
 	.ops		= &pllc1_clk_ops,
 	.flags		= CLK_ENABLE_ON_INIT,
 	.parent		= &extalb1_div2_clk,
 };

 /* Divide PLLC1 by two */
 static struct clk pllc1_div2_clk = {
 	.ops		= &div2_clk_ops,
 	.parent		= &pllc1_clk,
 };

 /* PLLC2 */
 static unsigned long pllc2_recalc(struct clk *clk)
 {
 	unsigned long mult = 1;

 	if (__raw_readl(PLLC2CR) & (1 << 31))
 		mult = (((__raw_readl(PLLC2CR) >> 24) & 0x3f) + 1) * 2;

 	return clk->parent->rate * mult;
 }

 static struct clk_ops pllc2_clk_ops = {
 	.recalc		= pllc2_recalc,
 };

 static struct clk pllc2_clk = {
 	.ops		= &pllc2_clk_ops,
 	.flags		= CLK_ENABLE_ON_INIT,
 	.parent		= &extalb1_div2_clk,
 };

 static struct clk *main_clks[] = {
 	&r_clk,
 	&sh7367_extalb1_clk,
 	&sh7367_extal2_clk,
 	&extalb1_div2_clk,
 	&extal2_div2_clk,
 	&pllc1_clk,
 	&pllc1_div2_clk,
 	&pllc2_clk,
 };

 static void div4_kick(struct clk *clk)
 {
 	unsigned long value;

 	/* set KICK bit in SYFRQCR to update hardware setting */
 	value = __raw_readl(SYFRQCR);
 	value |= (1 << 31);
 	__raw_writel(value, SYFRQCR);
 }

 static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
 			  24, 32, 36, 48, 0, 72, 0, 0 };

 static struct clk_div_mult_table div4_div_mult_table = {
 	.divisors = divisors,
 	.nr_divisors = ARRAY_SIZE(divisors),
 };

 static struct clk_div4_table div4_table = {
 	.div_mult_table = &div4_div_mult_table,
 	.kick = div4_kick,
 };

 enum { DIV4_I, DIV4_G, DIV4_S, DIV4_B,
        DIV4_ZX, DIV4_ZT, DIV4_Z, DIV4_ZD, DIV4_HP,
        DIV4_ZS, DIV4_ZB, DIV4_ZB3, DIV4_CP, DIV4_NR };

 #define DIV4(_reg, _bit, _mask, _flags) \
   SH_CLK_DIV4(&pllc1_clk, _reg, _bit, _mask, _flags)

 static struct clk div4_clks[DIV4_NR] = {
 	[DIV4_I] = DIV4(RTFRQCR, 20, 0x6fff, CLK_ENABLE_ON_INIT),
 	[DIV4_G] = DIV4(RTFRQCR, 16, 0x6fff, CLK_ENABLE_ON_INIT),
 	[DIV4_S] = DIV4(RTFRQCR, 12, 0x6fff, CLK_ENABLE_ON_INIT),
 	[DIV4_B] = DIV4(RTFRQCR, 8, 0x6fff, CLK_ENABLE_ON_INIT),
 	[DIV4_ZX] = DIV4(SYFRQCR, 20, 0x6fff, 0),
 	[DIV4_ZT] = DIV4(SYFRQCR, 16, 0x6fff, 0),
 	[DIV4_Z] = DIV4(SYFRQCR, 12, 0x6fff, 0),
 	[DIV4_ZD] = DIV4(SYFRQCR, 8, 0x6fff, 0),
 	[DIV4_HP] = DIV4(SYFRQCR, 4, 0x6fff, 0),
 	[DIV4_ZS] = DIV4(CMFRQCR, 12, 0x6fff, 0),
 	[DIV4_ZB] = DIV4(CMFRQCR, 8, 0x6fff, 0),
 	[DIV4_ZB3] = DIV4(CMFRQCR, 4, 0x6fff, 0),
 	[DIV4_CP] = DIV4(CMFRQCR, 0, 0x6fff, 0),
 };

 enum { DIV6_SUB, DIV6_SIUA, DIV6_SIUB, DIV6_MSU, DIV6_SPU,
        DIV6_MVI3, DIV6_MF1, DIV6_MF2,
        DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_VOU,
        DIV6_NR };

 static struct clk div6_clks[DIV6_NR] = {
 	[DIV6_SUB] = SH_CLK_DIV6(&sh7367_extal2_clk, SUBUSBCKCR, 0),
 	[DIV6_SIUA] = SH_CLK_DIV6(&pllc1_div2_clk, SCLKACR, 0),
 	[DIV6_SIUB] = SH_CLK_DIV6(&pllc1_div2_clk, SCLKBCR, 0),
 	[DIV6_MSU] = SH_CLK_DIV6(&pllc1_div2_clk, MSUCKCR, 0),
 	[DIV6_SPU] = SH_CLK_DIV6(&pllc1_div2_clk, SPUCKCR, 0),
 	[DIV6_MVI3] = SH_CLK_DIV6(&pllc1_div2_clk, MVI3CKCR, 0),
 	[DIV6_MF1] = SH_CLK_DIV6(&pllc1_div2_clk, MFCK1CR, 0),
 	[DIV6_MF2] = SH_CLK_DIV6(&pllc1_div2_clk, MFCK2CR, 0),
 	[DIV6_VCK1] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR1, 0),
 	[DIV6_VCK2] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR2, 0),
 	[DIV6_VCK3] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR3, 0),
 	[DIV6_VOU] = SH_CLK_DIV6(&pllc1_div2_clk, VOUCKCR, 0),
 };

 enum { RTMSTP001,
        RTMSTP231, RTMSTP230, RTMSTP229, RTMSTP228, RTMSTP226,
        RTMSTP216, RTMSTP206, RTMSTP205, RTMSTP201,
        SYMSTP023, SYMSTP007, SYMSTP006, SYMSTP004,
        SYMSTP003, SYMSTP002, SYMSTP001, SYMSTP000,
        SYMSTP231, SYMSTP229, SYMSTP225, SYMSTP223, SYMSTP222,
        SYMSTP215, SYMSTP214, SYMSTP213, SYMSTP211,
        CMMSTP003,
        MSTP_NR };

 #define MSTP(_parent, _reg, _bit, _flags) \
   SH_CLK_MSTP32(_parent, _reg, _bit, _flags)

 static struct clk mstp_clks[MSTP_NR] = {
 	[RTMSTP001] = MSTP(&div6_clks[DIV6_SUB], RTMSTPCR0, 1, 0), /* IIC2 */
 	[RTMSTP231] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 31, 0), /* VEU3 */
 	[RTMSTP230] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 30, 0), /* VEU2 */
 	[RTMSTP229] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 29, 0), /* VEU1 */
 	[RTMSTP228] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 28, 0), /* VEU0 */
 	[RTMSTP226] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 26, 0), /* VEU2H */
 	[RTMSTP216] = MSTP(&div6_clks[DIV6_SUB], RTMSTPCR2, 16, 0), /* IIC0 */
 	[RTMSTP206] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 6, 0), /* JPU */
 	[RTMSTP205] = MSTP(&div6_clks[DIV6_VOU], RTMSTPCR2, 5, 0), /* VOU */
 	[RTMSTP201] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 1, 0), /* VPU */
 	[SYMSTP023] = MSTP(&div6_clks[DIV6_SPU], SYMSTPCR0, 23, 0), /* SPU1 */
 	[SYMSTP007] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 7, 0), /* SCIFA5 */
 	[SYMSTP006] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 6, 0), /* SCIFB */
 	[SYMSTP004] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 4, 0), /* SCIFA0 */
 	[SYMSTP003] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 3, 0), /* SCIFA1 */
 	[SYMSTP002] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 2, 0), /* SCIFA2 */
 	[SYMSTP001] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 1, 0), /* SCIFA3 */
 	[SYMSTP000] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 0, 0), /* SCIFA4 */
 	[SYMSTP231] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR2, 31, 0), /* SIU */
 	[SYMSTP229] = MSTP(&r_clk, SYMSTPCR2, 29, 0), /* CMT10 */
 	[SYMSTP225] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR2, 25, 0), /* IRDA */
 	[SYMSTP223] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR2, 23, 0), /* IIC1 */
 	[SYMSTP222] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR2, 22, 0), /* USBHS */
 	[SYMSTP215] = MSTP(&div4_clks[DIV4_HP], SYMSTPCR2, 15, 0), /* FLCTL */
 	[SYMSTP214] = MSTP(&div4_clks[DIV4_HP], SYMSTPCR2, 14, 0), /* SDHI0 */
 	[SYMSTP213] = MSTP(&div4_clks[DIV4_HP], SYMSTPCR2, 13, 0), /* SDHI1 */
 	[SYMSTP211] = MSTP(&div4_clks[DIV4_HP], SYMSTPCR2, 11, 0), /* SDHI2 */
 	[CMMSTP003] = MSTP(&r_clk, CMMSTPCR0, 3, 0), /* KEYSC */
 };

 static struct clk_lookup lookups[] = {
 	/* main clocks */
 	CLKDEV_CON_ID("r_clk", &r_clk),
 	CLKDEV_CON_ID("extalb1", &sh7367_extalb1_clk),
 	CLKDEV_CON_ID("extal2", &sh7367_extal2_clk),
 	CLKDEV_CON_ID("extalb1_div2_clk", &extalb1_div2_clk),
 	CLKDEV_CON_ID("extal2_div2_clk", &extal2_div2_clk),
 	CLKDEV_CON_ID("pllc1_clk", &pllc1_clk),
 	CLKDEV_CON_ID("pllc1_div2_clk", &pllc1_div2_clk),
 	CLKDEV_CON_ID("pllc2_clk", &pllc2_clk),

 	/* DIV4 clocks */
 	CLKDEV_CON_ID("i_clk", &div4_clks[DIV4_I]),
 	CLKDEV_CON_ID("g_clk", &div4_clks[DIV4_G]),
 	CLKDEV_CON_ID("b_clk", &div4_clks[DIV4_B]),
 	CLKDEV_CON_ID("zx_clk", &div4_clks[DIV4_ZX]),
 	CLKDEV_CON_ID("zt_clk", &div4_clks[DIV4_ZT]),
 	CLKDEV_CON_ID("z_clk", &div4_clks[DIV4_Z]),
 	CLKDEV_CON_ID("zd_clk", &div4_clks[DIV4_ZD]),
 	CLKDEV_CON_ID("hp_clk", &div4_clks[DIV4_HP]),
 	CLKDEV_CON_ID("zs_clk", &div4_clks[DIV4_ZS]),
 	CLKDEV_CON_ID("zb_clk", &div4_clks[DIV4_ZB]),
 	CLKDEV_CON_ID("zb3_clk", &div4_clks[DIV4_ZB3]),
 	CLKDEV_CON_ID("cp_clk", &div4_clks[DIV4_CP]),

 	/* DIV6 clocks */
 	CLKDEV_CON_ID("sub_clk", &div6_clks[DIV6_SUB]),
 	CLKDEV_CON_ID("siua_clk", &div6_clks[DIV6_SIUA]),
 	CLKDEV_CON_ID("siub_clk", &div6_clks[DIV6_SIUB]),
 	CLKDEV_CON_ID("msu_clk", &div6_clks[DIV6_MSU]),
 	CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_SPU]),
 	CLKDEV_CON_ID("mvi3_clk", &div6_clks[DIV6_MVI3]),
 	CLKDEV_CON_ID("mf1_clk", &div6_clks[DIV6_MF1]),
 	CLKDEV_CON_ID("mf2_clk", &div6_clks[DIV6_MF2]),
 	CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]),
 	CLKDEV_CON_ID("vck2_clk", &div6_clks[DIV6_VCK2]),
 	CLKDEV_CON_ID("vck3_clk", &div6_clks[DIV6_VCK3]),
 	CLKDEV_CON_ID("vou_clk", &div6_clks[DIV6_VOU]),

 	/* MSTP32 clocks */
 	CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[RTMSTP001]), /* IIC2 */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.4", &mstp_clks[RTMSTP231]), /* VEU3 */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.3", &mstp_clks[RTMSTP230]), /* VEU2 */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.2", &mstp_clks[RTMSTP229]), /* VEU1 */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.1", &mstp_clks[RTMSTP228]), /* VEU0 */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.5", &mstp_clks[RTMSTP226]), /* VEU2H */
 	CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[RTMSTP216]), /* IIC0 */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.6", &mstp_clks[RTMSTP206]), /* JPU */
 	CLKDEV_DEV_ID("sh-vou", &mstp_clks[RTMSTP205]), /* VOU */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.0", &mstp_clks[RTMSTP201]), /* VPU */
 	CLKDEV_DEV_ID("uio_pdrv_genirq.7", &mstp_clks[SYMSTP023]), /* SPU1 */
 	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[SYMSTP007]), /* SCIFA5 */
 	CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[SYMSTP006]), /* SCIFB */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[SYMSTP004]), /* SCIFA0 */
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[SYMSTP003]), /* SCIFA1 */
 	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[SYMSTP002]), /* SCIFA2 */
 	CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[SYMSTP001]), /* SCIFA3 */
 	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[SYMSTP000]), /* SCIFA4 */
 	CLKDEV_DEV_ID("sh_siu", &mstp_clks[SYMSTP231]), /* SIU */
 	CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[SYMSTP229]), /* CMT10 */
 	CLKDEV_DEV_ID("sh_irda", &mstp_clks[SYMSTP225]), /* IRDA */
 	CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[SYMSTP223]), /* IIC1 */
 	CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[SYMSTP222]), /* USBHS */
 	CLKDEV_DEV_ID("r8a66597_udc.0", &mstp_clks[SYMSTP222]), /* USBHS */
 	CLKDEV_DEV_ID("sh_flctl", &mstp_clks[SYMSTP215]), /* FLCTL */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[SYMSTP214]), /* SDHI0 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[SYMSTP213]), /* SDHI1 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[SYMSTP211]), /* SDHI2 */
 	CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[CMMSTP003]), /* KEYSC */
 };

 void __init sh7367_clock_init(void)
 {
 	int k, ret = 0;

 	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
 		ret = clk_register(main_clks[k]);

 	if (!ret)
 		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);

 	if (!ret)
 		ret = sh_clk_div6_register(div6_clks, DIV6_NR);

 	if (!ret)
 		ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);

 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));

 	if (!ret)
 		clk_init();
 	else
 		panic("failed to setup sh7367 clocks\n");
 }
	/*
	* SH7367 clock framework support
	*
	* Copyright (C) 2010 Magnus Damm
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; version 2 of the License.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	*/
	#include <linux/init.h>
	#include <linux/kernel.h>
	#include <linux/io.h>
	#include <linux/sh_clk.h>
	#include <linux/clkdev.h>
	#include <mach/common.h>

	/* SH7367 registers */
	#define RTFRQCR 0xe6150000
	#define SYFRQCR 0xe6150004
	#define CMFRQCR 0xe61500E0
	#define VCLKCR1 0xe6150008
	#define VCLKCR2 0xe615000C
	#define VCLKCR3 0xe615001C
	#define SCLKACR 0xe6150010
	#define SCLKBCR 0xe6150014
	#define SUBUSBCKCR 0xe6158080
	#define SPUCKCR 0xe6150084
	#define MSUCKCR 0xe6150088
	#define MVI3CKCR 0xe6150090
	#define VOUCKCR 0xe6150094
	#define MFCK1CR 0xe6150098
	#define MFCK2CR 0xe615009C
	#define PLLC1CR 0xe6150028
	#define PLLC2CR 0xe615002C
	#define RTMSTPCR0 0xe6158030
	#define RTMSTPCR2 0xe6158038
	#define SYMSTPCR0 0xe6158040
	#define SYMSTPCR2 0xe6158048
	#define CMMSTPCR0 0xe615804c

	/* Fixed 32 KHz root clock from EXTALR pin */
	static struct clk r_clk = {
	.rate = 32768,
	};

	/*
	* 26MHz default rate for the EXTALB1 root input clock.
	* If needed, reset this with clk_set_rate() from the platform code.
	*/
	struct clk sh7367_extalb1_clk = {
	.rate = 26666666,
	};

	/*
	* 48MHz default rate for the EXTAL2 root input clock.
	* If needed, reset this with clk_set_rate() from the platform code.
	*/
	struct clk sh7367_extal2_clk = {
	.rate = 48000000,
	};

	/* A fixed divide-by-2 block */
	static unsigned long div2_recalc(struct clk *clk)
	{
	return clk->parent->rate / 2;
	}

	static struct clk_ops div2_clk_ops = {
	.recalc = div2_recalc,
	};

	/* Divide extalb1 by two */
	static struct clk extalb1_div2_clk = {
	.ops = &div2_clk_ops,
	.parent = &sh7367_extalb1_clk,
	};

	/* Divide extal2 by two */
	static struct clk extal2_div2_clk = {
	.ops = &div2_clk_ops,
	.parent = &sh7367_extal2_clk,
	};

	/* PLLC1 */
	static unsigned long pllc1_recalc(struct clk *clk)
	{
	unsigned long mult = 1;

	if (__raw_readl(PLLC1CR) & (1 << 14))
	mult = (((__raw_readl(RTFRQCR) >> 24) & 0x3f) + 1) * 2;

	return clk->parent->rate * mult;
	}

	static struct clk_ops pllc1_clk_ops = {
	.recalc = pllc1_recalc,
	};

	static struct clk pllc1_clk = {
	.ops = &pllc1_clk_ops,
	.flags = CLK_ENABLE_ON_INIT,
	.parent = &extalb1_div2_clk,
	};

	/* Divide PLLC1 by two */
	static struct clk pllc1_div2_clk = {
	.ops = &div2_clk_ops,
	.parent = &pllc1_clk,
	};

	/* PLLC2 */
	static unsigned long pllc2_recalc(struct clk *clk)
	{
	unsigned long mult = 1;

	if (__raw_readl(PLLC2CR) & (1 << 31))
	mult = (((__raw_readl(PLLC2CR) >> 24) & 0x3f) + 1) * 2;

	return clk->parent->rate * mult;
	}

	static struct clk_ops pllc2_clk_ops = {
	.recalc = pllc2_recalc,
	};

	static struct clk pllc2_clk = {
	.ops = &pllc2_clk_ops,
	.flags = CLK_ENABLE_ON_INIT,
	.parent = &extalb1_div2_clk,
	};

	static struct clk *main_clks[] = {
	&r_clk,
	&sh7367_extalb1_clk,
	&sh7367_extal2_clk,
	&extalb1_div2_clk,
	&extal2_div2_clk,
	&pllc1_clk,
	&pllc1_div2_clk,
	&pllc2_clk,
	};

	static void div4_kick(struct clk *clk)
	{
	unsigned long value;

	/* set KICK bit in SYFRQCR to update hardware setting */
	value = __raw_readl(SYFRQCR);
	value \|= (1 << 31);
	__raw_writel(value, SYFRQCR);
	}

	static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
	24, 32, 36, 48, 0, 72, 0, 0 };

	static struct clk_div_mult_table div4_div_mult_table = {
	.divisors = divisors,
	.nr_divisors = ARRAY_SIZE(divisors),
	};

	static struct clk_div4_table div4_table = {
	.div_mult_table = &div4_div_mult_table,
	.kick = div4_kick,
	};

	enum { DIV4_I, DIV4_G, DIV4_S, DIV4_B,
	DIV4_ZX, DIV4_ZT, DIV4_Z, DIV4_ZD, DIV4_HP,
	DIV4_ZS, DIV4_ZB, DIV4_ZB3, DIV4_CP, DIV4_NR };

	#define DIV4(_reg, _bit, _mask, _flags) \
	SH_CLK_DIV4(&pllc1_clk, _reg, _bit, _mask, _flags)

	static struct clk div4_clks[DIV4_NR] = {
	[DIV4_I] = DIV4(RTFRQCR, 20, 0x6fff, CLK_ENABLE_ON_INIT),
	[DIV4_G] = DIV4(RTFRQCR, 16, 0x6fff, CLK_ENABLE_ON_INIT),
	[DIV4_S] = DIV4(RTFRQCR, 12, 0x6fff, CLK_ENABLE_ON_INIT),
	[DIV4_B] = DIV4(RTFRQCR, 8, 0x6fff, CLK_ENABLE_ON_INIT),
	[DIV4_ZX] = DIV4(SYFRQCR, 20, 0x6fff, 0),
	[DIV4_ZT] = DIV4(SYFRQCR, 16, 0x6fff, 0),
	[DIV4_Z] = DIV4(SYFRQCR, 12, 0x6fff, 0),
	[DIV4_ZD] = DIV4(SYFRQCR, 8, 0x6fff, 0),
	[DIV4_HP] = DIV4(SYFRQCR, 4, 0x6fff, 0),
	[DIV4_ZS] = DIV4(CMFRQCR, 12, 0x6fff, 0),
	[DIV4_ZB] = DIV4(CMFRQCR, 8, 0x6fff, 0),
	[DIV4_ZB3] = DIV4(CMFRQCR, 4, 0x6fff, 0),
	[DIV4_CP] = DIV4(CMFRQCR, 0, 0x6fff, 0),
	};

	enum { DIV6_SUB, DIV6_SIUA, DIV6_SIUB, DIV6_MSU, DIV6_SPU,
	DIV6_MVI3, DIV6_MF1, DIV6_MF2,
	DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_VOU,
	DIV6_NR };

	static struct clk div6_clks[DIV6_NR] = {
	[DIV6_SUB] = SH_CLK_DIV6(&sh7367_extal2_clk, SUBUSBCKCR, 0),
	[DIV6_SIUA] = SH_CLK_DIV6(&pllc1_div2_clk, SCLKACR, 0),
	[DIV6_SIUB] = SH_CLK_DIV6(&pllc1_div2_clk, SCLKBCR, 0),
	[DIV6_MSU] = SH_CLK_DIV6(&pllc1_div2_clk, MSUCKCR, 0),
	[DIV6_SPU] = SH_CLK_DIV6(&pllc1_div2_clk, SPUCKCR, 0),
	[DIV6_MVI3] = SH_CLK_DIV6(&pllc1_div2_clk, MVI3CKCR, 0),
	[DIV6_MF1] = SH_CLK_DIV6(&pllc1_div2_clk, MFCK1CR, 0),
	[DIV6_MF2] = SH_CLK_DIV6(&pllc1_div2_clk, MFCK2CR, 0),
	[DIV6_VCK1] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR1, 0),
	[DIV6_VCK2] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR2, 0),
	[DIV6_VCK3] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR3, 0),
	[DIV6_VOU] = SH_CLK_DIV6(&pllc1_div2_clk, VOUCKCR, 0),
	};

	enum { RTMSTP001,
	RTMSTP231, RTMSTP230, RTMSTP229, RTMSTP228, RTMSTP226,
	RTMSTP216, RTMSTP206, RTMSTP205, RTMSTP201,
	SYMSTP023, SYMSTP007, SYMSTP006, SYMSTP004,
	SYMSTP003, SYMSTP002, SYMSTP001, SYMSTP000,
	SYMSTP231, SYMSTP229, SYMSTP225, SYMSTP223, SYMSTP222,
	SYMSTP215, SYMSTP214, SYMSTP213, SYMSTP211,
	CMMSTP003,
	MSTP_NR };

	#define MSTP(_parent, _reg, _bit, _flags) \
	SH_CLK_MSTP32(_parent, _reg, _bit, _flags)

	static struct clk mstp_clks[MSTP_NR] = {
	[RTMSTP001] = MSTP(&div6_clks[DIV6_SUB], RTMSTPCR0, 1, 0), /* IIC2 */
	[RTMSTP231] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 31, 0), /* VEU3 */
	[RTMSTP230] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 30, 0), /* VEU2 */
	[RTMSTP229] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 29, 0), /* VEU1 */
	[RTMSTP228] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 28, 0), /* VEU0 */
	[RTMSTP226] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 26, 0), /* VEU2H */
	[RTMSTP216] = MSTP(&div6_clks[DIV6_SUB], RTMSTPCR2, 16, 0), /* IIC0 */
	[RTMSTP206] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 6, 0), /* JPU */
	[RTMSTP205] = MSTP(&div6_clks[DIV6_VOU], RTMSTPCR2, 5, 0), /* VOU */
	[RTMSTP201] = MSTP(&div4_clks[DIV4_B], RTMSTPCR2, 1, 0), /* VPU */
	[SYMSTP023] = MSTP(&div6_clks[DIV6_SPU], SYMSTPCR0, 23, 0), /* SPU1 */
	[SYMSTP007] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 7, 0), /* SCIFA5 */
	[SYMSTP006] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 6, 0), /* SCIFB */
	[SYMSTP004] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 4, 0), /* SCIFA0 */
	[SYMSTP003] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 3, 0), /* SCIFA1 */
	[SYMSTP002] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 2, 0), /* SCIFA2 */
	[SYMSTP001] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 1, 0), /* SCIFA3 */
	[SYMSTP000] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR0, 0, 0), /* SCIFA4 */
	[SYMSTP231] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR2, 31, 0), /* SIU */
	[SYMSTP229] = MSTP(&r_clk, SYMSTPCR2, 29, 0), /* CMT10 */
	[SYMSTP225] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR2, 25, 0), /* IRDA */
	[SYMSTP223] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR2, 23, 0), /* IIC1 */
	[SYMSTP222] = MSTP(&div6_clks[DIV6_SUB], SYMSTPCR2, 22, 0), /* USBHS */
	[SYMSTP215] = MSTP(&div4_clks[DIV4_HP], SYMSTPCR2, 15, 0), /* FLCTL */
	[SYMSTP214] = MSTP(&div4_clks[DIV4_HP], SYMSTPCR2, 14, 0), /* SDHI0 */
	[SYMSTP213] = MSTP(&div4_clks[DIV4_HP], SYMSTPCR2, 13, 0), /* SDHI1 */
	[SYMSTP211] = MSTP(&div4_clks[DIV4_HP], SYMSTPCR2, 11, 0), /* SDHI2 */
	[CMMSTP003] = MSTP(&r_clk, CMMSTPCR0, 3, 0), /* KEYSC */
	};

	static struct clk_lookup lookups[] = {
	/* main clocks */
	CLKDEV_CON_ID("r_clk", &r_clk),
	CLKDEV_CON_ID("extalb1", &sh7367_extalb1_clk),
	CLKDEV_CON_ID("extal2", &sh7367_extal2_clk),
	CLKDEV_CON_ID("extalb1_div2_clk", &extalb1_div2_clk),
	CLKDEV_CON_ID("extal2_div2_clk", &extal2_div2_clk),
	CLKDEV_CON_ID("pllc1_clk", &pllc1_clk),
	CLKDEV_CON_ID("pllc1_div2_clk", &pllc1_div2_clk),
	CLKDEV_CON_ID("pllc2_clk", &pllc2_clk),

	/* DIV4 clocks */
	CLKDEV_CON_ID("i_clk", &div4_clks[DIV4_I]),
	CLKDEV_CON_ID("g_clk", &div4_clks[DIV4_G]),
	CLKDEV_CON_ID("b_clk", &div4_clks[DIV4_B]),
	CLKDEV_CON_ID("zx_clk", &div4_clks[DIV4_ZX]),
	CLKDEV_CON_ID("zt_clk", &div4_clks[DIV4_ZT]),
	CLKDEV_CON_ID("z_clk", &div4_clks[DIV4_Z]),
	CLKDEV_CON_ID("zd_clk", &div4_clks[DIV4_ZD]),
	CLKDEV_CON_ID("hp_clk", &div4_clks[DIV4_HP]),
	CLKDEV_CON_ID("zs_clk", &div4_clks[DIV4_ZS]),
	CLKDEV_CON_ID("zb_clk", &div4_clks[DIV4_ZB]),
	CLKDEV_CON_ID("zb3_clk", &div4_clks[DIV4_ZB3]),
	CLKDEV_CON_ID("cp_clk", &div4_clks[DIV4_CP]),

	/* DIV6 clocks */
	CLKDEV_CON_ID("sub_clk", &div6_clks[DIV6_SUB]),
	CLKDEV_CON_ID("siua_clk", &div6_clks[DIV6_SIUA]),
	CLKDEV_CON_ID("siub_clk", &div6_clks[DIV6_SIUB]),
	CLKDEV_CON_ID("msu_clk", &div6_clks[DIV6_MSU]),
	CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_SPU]),
	CLKDEV_CON_ID("mvi3_clk", &div6_clks[DIV6_MVI3]),
	CLKDEV_CON_ID("mf1_clk", &div6_clks[DIV6_MF1]),
	CLKDEV_CON_ID("mf2_clk", &div6_clks[DIV6_MF2]),
	CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]),
	CLKDEV_CON_ID("vck2_clk", &div6_clks[DIV6_VCK2]),
	CLKDEV_CON_ID("vck3_clk", &div6_clks[DIV6_VCK3]),
	CLKDEV_CON_ID("vou_clk", &div6_clks[DIV6_VOU]),

	/* MSTP32 clocks */
	CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[RTMSTP001]), /* IIC2 */
	CLKDEV_DEV_ID("uio_pdrv_genirq.4", &mstp_clks[RTMSTP231]), /* VEU3 */
	CLKDEV_DEV_ID("uio_pdrv_genirq.3", &mstp_clks[RTMSTP230]), /* VEU2 */
	CLKDEV_DEV_ID("uio_pdrv_genirq.2", &mstp_clks[RTMSTP229]), /* VEU1 */
	CLKDEV_DEV_ID("uio_pdrv_genirq.1", &mstp_clks[RTMSTP228]), /* VEU0 */
	CLKDEV_DEV_ID("uio_pdrv_genirq.5", &mstp_clks[RTMSTP226]), /* VEU2H */
	CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[RTMSTP216]), /* IIC0 */
	CLKDEV_DEV_ID("uio_pdrv_genirq.6", &mstp_clks[RTMSTP206]), /* JPU */
	CLKDEV_DEV_ID("sh-vou", &mstp_clks[RTMSTP205]), /* VOU */
	CLKDEV_DEV_ID("uio_pdrv_genirq.0", &mstp_clks[RTMSTP201]), /* VPU */
	CLKDEV_DEV_ID("uio_pdrv_genirq.7", &mstp_clks[SYMSTP023]), /* SPU1 */
	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[SYMSTP007]), /* SCIFA5 */
	CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[SYMSTP006]), /* SCIFB */
	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[SYMSTP004]), /* SCIFA0 */
	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[SYMSTP003]), /* SCIFA1 */
	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[SYMSTP002]), /* SCIFA2 */
	CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[SYMSTP001]), /* SCIFA3 */
	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[SYMSTP000]), /* SCIFA4 */
	CLKDEV_DEV_ID("sh_siu", &mstp_clks[SYMSTP231]), /* SIU */
	CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[SYMSTP229]), /* CMT10 */
	CLKDEV_DEV_ID("sh_irda", &mstp_clks[SYMSTP225]), /* IRDA */
	CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[SYMSTP223]), /* IIC1 */
	CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[SYMSTP222]), /* USBHS */
	CLKDEV_DEV_ID("r8a66597_udc.0", &mstp_clks[SYMSTP222]), /* USBHS */
	CLKDEV_DEV_ID("sh_flctl", &mstp_clks[SYMSTP215]), /* FLCTL */
	CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[SYMSTP214]), /* SDHI0 */
	CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[SYMSTP213]), /* SDHI1 */
	CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[SYMSTP211]), /* SDHI2 */
	CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[CMMSTP003]), /* KEYSC */
	};

	void __init sh7367_clock_init(void)
	{
	int k, ret = 0;

	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
	ret = clk_register(main_clks[k]);

	if (!ret)
	ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);

	if (!ret)
	ret = sh_clk_div6_register(div6_clks, DIV6_NR);

	if (!ret)
	ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);

	clkdev_add_table(lookups, ARRAY_SIZE(lookups));

	if (!ret)
	clk_init();
	else
	panic("failed to setup sh7367 clocks\n");
	}