arch/arm/mach-shmobile/clock-sh73a0.c - maze/linux - Git at Google

 /*
  * sh73a0 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; either 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/io.h>
 #include <linux/sh_clk.h>
 #include <linux/clkdev.h>
 #include <asm/processor.h>
 #include <mach/clock.h>
 #include <mach/common.h>

 #define FRQCRA		IOMEM(0xe6150000)
 #define FRQCRB		IOMEM(0xe6150004)
 #define FRQCRD		IOMEM(0xe61500e4)
 #define VCLKCR1		IOMEM(0xe6150008)
 #define VCLKCR2		IOMEM(0xe615000C)
 #define VCLKCR3		IOMEM(0xe615001C)
 #define ZBCKCR		IOMEM(0xe6150010)
 #define FLCKCR		IOMEM(0xe6150014)
 #define SD0CKCR		IOMEM(0xe6150074)
 #define SD1CKCR		IOMEM(0xe6150078)
 #define SD2CKCR		IOMEM(0xe615007C)
 #define FSIACKCR	IOMEM(0xe6150018)
 #define FSIBCKCR	IOMEM(0xe6150090)
 #define SUBCKCR		IOMEM(0xe6150080)
 #define SPUACKCR	IOMEM(0xe6150084)
 #define SPUVCKCR	IOMEM(0xe6150094)
 #define MSUCKCR		IOMEM(0xe6150088)
 #define HSICKCR		IOMEM(0xe615008C)
 #define MFCK1CR		IOMEM(0xe6150098)
 #define MFCK2CR		IOMEM(0xe615009C)
 #define DSITCKCR	IOMEM(0xe6150060)
 #define DSI0PCKCR	IOMEM(0xe6150064)
 #define DSI1PCKCR	IOMEM(0xe6150068)
 #define DSI0PHYCR	0xe615006C
 #define DSI1PHYCR	0xe6150070
 #define PLLECR		IOMEM(0xe61500d0)
 #define PLL0CR		IOMEM(0xe61500d8)
 #define PLL1CR		IOMEM(0xe6150028)
 #define PLL2CR		IOMEM(0xe615002c)
 #define PLL3CR		IOMEM(0xe61500dc)
 #define SMSTPCR0	IOMEM(0xe6150130)
 #define SMSTPCR1	IOMEM(0xe6150134)
 #define SMSTPCR2	IOMEM(0xe6150138)
 #define SMSTPCR3	IOMEM(0xe615013c)
 #define SMSTPCR4	IOMEM(0xe6150140)
 #define SMSTPCR5	IOMEM(0xe6150144)
 #define CKSCR		IOMEM(0xe61500c0)

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

 /*
  * 26MHz default rate for the EXTAL1 root input clock.
  * If needed, reset this with clk_set_rate() from the platform code.
  */
 struct clk sh73a0_extal1_clk = {
 	.rate		= 26000000,
 };

 /*
  * 48MHz default rate for the EXTAL2 root input clock.
  * If needed, reset this with clk_set_rate() from the platform code.
  */
 struct clk sh73a0_extal2_clk = {
 	.rate		= 48000000,
 };

 static struct sh_clk_ops main_clk_ops = {
 	.recalc		= followparent_recalc,
 };

 /* Main clock */
 static struct clk main_clk = {
 	/* .parent wll be set on sh73a0_clock_init() */
 	.ops		= &main_clk_ops,
 };

 /* PLL0, PLL1, PLL2, PLL3 */
 static unsigned long pll_recalc(struct clk *clk)
 {
 	unsigned long mult = 1;

 	if (__raw_readl(PLLECR) & (1 << clk->enable_bit)) {
 		mult = (((__raw_readl(clk->enable_reg) >> 24) & 0x3f) + 1);
 		/* handle CFG bit for PLL1 and PLL2 */
 		switch (clk->enable_bit) {
 		case 1:
 		case 2:
 			if (__raw_readl(clk->enable_reg) & (1 << 20))
 				mult *= 2;
 		}
 	}

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

 static struct sh_clk_ops pll_clk_ops = {
 	.recalc		= pll_recalc,
 };

 static struct clk pll0_clk = {
 	.ops		= &pll_clk_ops,
 	.flags		= CLK_ENABLE_ON_INIT,
 	.parent		= &main_clk,
 	.enable_reg	= (void __iomem *)PLL0CR,
 	.enable_bit	= 0,
 };

 static struct clk pll1_clk = {
 	.ops		= &pll_clk_ops,
 	.flags		= CLK_ENABLE_ON_INIT,
 	.parent		= &main_clk,
 	.enable_reg	= (void __iomem *)PLL1CR,
 	.enable_bit	= 1,
 };

 static struct clk pll2_clk = {
 	.ops		= &pll_clk_ops,
 	.flags		= CLK_ENABLE_ON_INIT,
 	.parent		= &main_clk,
 	.enable_reg	= (void __iomem *)PLL2CR,
 	.enable_bit	= 2,
 };

 static struct clk pll3_clk = {
 	.ops		= &pll_clk_ops,
 	.flags		= CLK_ENABLE_ON_INIT,
 	.parent		= &main_clk,
 	.enable_reg	= (void __iomem *)PLL3CR,
 	.enable_bit	= 3,
 };

 /* A fixed divide block */
 SH_CLK_RATIO(div2,  1, 2);
 SH_CLK_RATIO(div7,  1, 7);
 SH_CLK_RATIO(div13, 1, 13);

 SH_FIXED_RATIO_CLK(extal1_div2_clk,	sh73a0_extal1_clk,	div2);
 SH_FIXED_RATIO_CLK(extal2_div2_clk,	sh73a0_extal2_clk,	div2);
 SH_FIXED_RATIO_CLK(main_div2_clk,	main_clk,		div2);
 SH_FIXED_RATIO_CLK(pll1_div2_clk,	pll1_clk,		div2);
 SH_FIXED_RATIO_CLK(pll1_div7_clk,	pll1_clk,		div7);
 SH_FIXED_RATIO_CLK(pll1_div13_clk,	pll1_clk,		div13);

 /* External input clock */
 struct clk sh73a0_extcki_clk = {
 };

 struct clk sh73a0_extalr_clk = {
 };

 static struct clk *main_clks[] = {
 	&r_clk,
 	&sh73a0_extal1_clk,
 	&sh73a0_extal2_clk,
 	&extal1_div2_clk,
 	&extal2_div2_clk,
 	&main_clk,
 	&main_div2_clk,
 	&pll0_clk,
 	&pll1_clk,
 	&pll2_clk,
 	&pll3_clk,
 	&pll1_div2_clk,
 	&pll1_div7_clk,
 	&pll1_div13_clk,
 	&sh73a0_extcki_clk,
 	&sh73a0_extalr_clk,
 };

 static int frqcr_kick(void)
 {
 	int i;

 	/* set KICK bit in FRQCRB to update hardware setting, check success */
 	__raw_writel(__raw_readl(FRQCRB) | (1 << 31), FRQCRB);
 	for (i = 1000; i; i--)
 		if (__raw_readl(FRQCRB) & (1 << 31))
 			cpu_relax();
 		else
 			return i;

 	return -ETIMEDOUT;
 }

 static void div4_kick(struct clk *clk)
 {
 	frqcr_kick();
 }

 static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
 			  24, 0, 36, 48, 7 };

 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_ZG, DIV4_M3, DIV4_B, DIV4_M1, DIV4_M2,
 	DIV4_Z, DIV4_ZX, DIV4_HP, DIV4_NR };

 #define DIV4(_reg, _bit, _mask, _flags) \
 	SH_CLK_DIV4(&pll1_clk, _reg, _bit, _mask, _flags)

 static struct clk div4_clks[DIV4_NR] = {
 	[DIV4_I] = DIV4(FRQCRA, 20, 0xdff, CLK_ENABLE_ON_INIT),
 	[DIV4_ZG] = SH_CLK_DIV4(&pll0_clk, FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT),
 	[DIV4_M3] = DIV4(FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT),
 	[DIV4_B] = DIV4(FRQCRA, 8, 0xdff, CLK_ENABLE_ON_INIT),
 	[DIV4_M1] = DIV4(FRQCRA, 4, 0x1dff, 0),
 	[DIV4_M2] = DIV4(FRQCRA, 0, 0x1dff, 0),
 	[DIV4_Z] = SH_CLK_DIV4(&pll0_clk, FRQCRB, 24, 0x97f, 0),
 	[DIV4_ZX] = DIV4(FRQCRB, 12, 0xdff, 0),
 	[DIV4_HP] = DIV4(FRQCRB, 4, 0xdff, 0),
 };

 static unsigned long twd_recalc(struct clk *clk)
 {
 	return clk_get_rate(clk->parent) / 4;
 }

 static struct sh_clk_ops twd_clk_ops = {
 	.recalc = twd_recalc,
 };

 static struct clk twd_clk = {
 	.parent = &div4_clks[DIV4_Z],
 	.ops = &twd_clk_ops,
 };

 enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1,
 	DIV6_FLCTL, DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2,
 	DIV6_FSIA, DIV6_FSIB, DIV6_SUB,
 	DIV6_SPUA, DIV6_SPUV, DIV6_MSU,
 	DIV6_HSI,  DIV6_MFG1, DIV6_MFG2,
 	DIV6_DSIT, DIV6_DSI0P, DIV6_DSI1P,
 	DIV6_NR };

 static struct clk *vck_parent[8] = {
 	[0] = &pll1_div2_clk,
 	[1] = &pll2_clk,
 	[2] = &sh73a0_extcki_clk,
 	[3] = &sh73a0_extal2_clk,
 	[4] = &main_div2_clk,
 	[5] = &sh73a0_extalr_clk,
 	[6] = &main_clk,
 };

 static struct clk *pll_parent[4] = {
 	[0] = &pll1_div2_clk,
 	[1] = &pll2_clk,
 	[2] = &pll1_div13_clk,
 };

 static struct clk *hsi_parent[4] = {
 	[0] = &pll1_div2_clk,
 	[1] = &pll2_clk,
 	[2] = &pll1_div7_clk,
 };

 static struct clk *pll_extal2_parent[] = {
 	[0] = &pll1_div2_clk,
 	[1] = &pll2_clk,
 	[2] = &sh73a0_extal2_clk,
 	[3] = &sh73a0_extal2_clk,
 };

 static struct clk *dsi_parent[8] = {
 	[0] = &pll1_div2_clk,
 	[1] = &pll2_clk,
 	[2] = &main_clk,
 	[3] = &sh73a0_extal2_clk,
 	[4] = &sh73a0_extcki_clk,
 };

 static struct clk div6_clks[DIV6_NR] = {
 	[DIV6_VCK1] = SH_CLK_DIV6_EXT(VCLKCR1, 0,
 			vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
 	[DIV6_VCK2] = SH_CLK_DIV6_EXT(VCLKCR2, 0,
 			vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
 	[DIV6_VCK3] = SH_CLK_DIV6_EXT(VCLKCR3, 0,
 			vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
 	[DIV6_ZB1] = SH_CLK_DIV6_EXT(ZBCKCR, CLK_ENABLE_ON_INIT,
 			pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
 	[DIV6_FLCTL] = SH_CLK_DIV6_EXT(FLCKCR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
 	[DIV6_SDHI0] = SH_CLK_DIV6_EXT(SD0CKCR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
 	[DIV6_SDHI1] = SH_CLK_DIV6_EXT(SD1CKCR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
 	[DIV6_SDHI2] = SH_CLK_DIV6_EXT(SD2CKCR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
 	[DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 6, 1),
 	[DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 6, 1),
 	[DIV6_SUB] = SH_CLK_DIV6_EXT(SUBCKCR, 0,
 			pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
 	[DIV6_SPUA] = SH_CLK_DIV6_EXT(SPUACKCR, 0,
 			pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
 	[DIV6_SPUV] = SH_CLK_DIV6_EXT(SPUVCKCR, 0,
 			pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
 	[DIV6_MSU] = SH_CLK_DIV6_EXT(MSUCKCR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
 	[DIV6_HSI] = SH_CLK_DIV6_EXT(HSICKCR, 0,
 			hsi_parent, ARRAY_SIZE(hsi_parent), 6, 2),
 	[DIV6_MFG1] = SH_CLK_DIV6_EXT(MFCK1CR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
 	[DIV6_MFG2] = SH_CLK_DIV6_EXT(MFCK2CR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
 	[DIV6_DSIT] = SH_CLK_DIV6_EXT(DSITCKCR, 0,
 			pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
 	[DIV6_DSI0P] = SH_CLK_DIV6_EXT(DSI0PCKCR, 0,
 			dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3),
 	[DIV6_DSI1P] = SH_CLK_DIV6_EXT(DSI1PCKCR, 0,
 			dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3),
 };

 /* DSI DIV */
 static unsigned long dsiphy_recalc(struct clk *clk)
 {
 	u32 value;

 	value = __raw_readl(clk->mapping->base);

 	/* FIXME */
 	if (!(value & 0x000B8000))
 		return clk->parent->rate;

 	value &= 0x3f;
 	value += 1;

 	if ((value < 12) ||
 	    (value > 33)) {
 		pr_err("DSIPHY has wrong value (%d)", value);
 		return 0;
 	}

 	return clk->parent->rate / value;
 }

 static long dsiphy_round_rate(struct clk *clk, unsigned long rate)
 {
 	return clk_rate_mult_range_round(clk, 12, 33, rate);
 }

 static void dsiphy_disable(struct clk *clk)
 {
 	u32 value;

 	value = __raw_readl(clk->mapping->base);
 	value &= ~0x000B8000;

 	__raw_writel(value , clk->mapping->base);
 }

 static int dsiphy_enable(struct clk *clk)
 {
 	u32 value;
 	int multi;

 	value = __raw_readl(clk->mapping->base);
 	multi = (value & 0x3f) + 1;

 	if ((multi < 12) || (multi > 33))
 		return -EIO;

 	__raw_writel(value | 0x000B8000, clk->mapping->base);

 	return 0;
 }

 static int dsiphy_set_rate(struct clk *clk, unsigned long rate)
 {
 	u32 value;
 	int idx;

 	idx = rate / clk->parent->rate;
 	if ((idx < 12) || (idx > 33))
 		return -EINVAL;

 	idx += -1;

 	value = __raw_readl(clk->mapping->base);
 	value = (value & ~0x3f) + idx;

 	__raw_writel(value, clk->mapping->base);

 	return 0;
 }

 static struct sh_clk_ops dsiphy_clk_ops = {
 	.recalc		= dsiphy_recalc,
 	.round_rate	= dsiphy_round_rate,
 	.set_rate	= dsiphy_set_rate,
 	.enable		= dsiphy_enable,
 	.disable	= dsiphy_disable,
 };

 static struct clk_mapping dsi0phy_clk_mapping = {
 	.phys	= DSI0PHYCR,
 	.len	= 4,
 };

 static struct clk_mapping dsi1phy_clk_mapping = {
 	.phys	= DSI1PHYCR,
 	.len	= 4,
 };

 static struct clk dsi0phy_clk = {
 	.ops		= &dsiphy_clk_ops,
 	.parent		= &div6_clks[DIV6_DSI0P], /* late install */
 	.mapping	= &dsi0phy_clk_mapping,
 };

 static struct clk dsi1phy_clk = {
 	.ops		= &dsiphy_clk_ops,
 	.parent		= &div6_clks[DIV6_DSI1P], /* late install */
 	.mapping	= &dsi1phy_clk_mapping,
 };

 static struct clk *late_main_clks[] = {
 	&dsi0phy_clk,
 	&dsi1phy_clk,
 	&twd_clk,
 };

 enum { MSTP001,
 	MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP100,
 	MSTP219, MSTP218, MSTP217,
 	MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
 	MSTP331, MSTP329, MSTP328, MSTP325, MSTP323, MSTP322,
 	MSTP314, MSTP313, MSTP312, MSTP311,
 	MSTP303, MSTP302, MSTP301, MSTP300,
 	MSTP411, MSTP410, MSTP403,
 	MSTP_NR };

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

 static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP001] = MSTP(&div4_clks[DIV4_HP], SMSTPCR0, 1, 0), /* IIC2 */
 	[MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* CEU1 */
 	[MSTP128] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 28, 0), /* CSI2-RX1 */
 	[MSTP127] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 27, 0), /* CEU0 */
 	[MSTP126] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 26, 0), /* CSI2-RX0 */
 	[MSTP125] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */
 	[MSTP118] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 18, 0), /* DSITX0 */
 	[MSTP116] = MSTP(&div4_clks[DIV4_HP], SMSTPCR1, 16, 0), /* IIC0 */
 	[MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */
 	[MSTP219] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 19, 0), /* SCIFA7 */
 	[MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* SY-DMAC */
 	[MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* MP-DMAC */
 	[MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
 	[MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
 	[MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
 	[MSTP203] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 3, 0), /* SCIFA1 */
 	[MSTP202] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 2, 0), /* SCIFA2 */
 	[MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */
 	[MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */
 	[MSTP331] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 31, 0), /* SCIFA6 */
 	[MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
 	[MSTP328] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 28, 0), /*FSI*/
 	[MSTP325] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 25, 0), /* IrDA */
 	[MSTP323] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 23, 0), /* IIC1 */
 	[MSTP322] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 22, 0), /* USB */
 	[MSTP314] = MSTP(&div6_clks[DIV6_SDHI0], SMSTPCR3, 14, 0), /* SDHI0 */
 	[MSTP313] = MSTP(&div6_clks[DIV6_SDHI1], SMSTPCR3, 13, 0), /* SDHI1 */
 	[MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */
 	[MSTP311] = MSTP(&div6_clks[DIV6_SDHI2], SMSTPCR3, 11, 0), /* SDHI2 */
 	[MSTP303] = MSTP(&main_div2_clk, SMSTPCR3, 3, 0), /* TPU1 */
 	[MSTP302] = MSTP(&main_div2_clk, SMSTPCR3, 2, 0), /* TPU2 */
 	[MSTP301] = MSTP(&main_div2_clk, SMSTPCR3, 1, 0), /* TPU3 */
 	[MSTP300] = MSTP(&main_div2_clk, SMSTPCR3, 0, 0), /* TPU4 */
 	[MSTP411] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 11, 0), /* IIC3 */
 	[MSTP410] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 10, 0), /* IIC4 */
 	[MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */
 };

 /* The lookups structure below includes duplicate entries for some clocks
  * with alternate names.
  * - The traditional name used when a device is initialised with platform data
  * - The name used when a device is initialised using device tree
  * The longer-term aim is to remove these duplicates, and indeed the
  * lookups table entirely, by describing clocks using device tree.
  */
 static struct clk_lookup lookups[] = {
 	/* main clocks */
 	CLKDEV_CON_ID("r_clk", &r_clk),
 	CLKDEV_DEV_ID("smp_twd", &twd_clk), /* smp_twd */

 	/* DIV6 clocks */
 	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("sdhi0_clk", &div6_clks[DIV6_SDHI0]),
 	CLKDEV_CON_ID("sdhi1_clk", &div6_clks[DIV6_SDHI1]),
 	CLKDEV_CON_ID("sdhi2_clk", &div6_clks[DIV6_SDHI2]),
 	CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSIT]),
 	CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSIT]),
 	CLKDEV_ICK_ID("dsip_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSI0P]),
 	CLKDEV_ICK_ID("dsip_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSI1P]),
 	CLKDEV_ICK_ID("dsiphy_clk", "sh-mipi-dsi.0", &dsi0phy_clk),
 	CLKDEV_ICK_ID("dsiphy_clk", "sh-mipi-dsi.1", &dsi1phy_clk),

 	/* MSTP32 clocks */
 	CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* I2C2 */
 	CLKDEV_DEV_ID("e6824000.i2c", &mstp_clks[MSTP001]), /* I2C2 */
 	CLKDEV_DEV_ID("sh_mobile_ceu.1", &mstp_clks[MSTP129]), /* CEU1 */
 	CLKDEV_DEV_ID("sh-mobile-csi2.1", &mstp_clks[MSTP128]), /* CSI2-RX1 */
 	CLKDEV_DEV_ID("sh_mobile_ceu.0", &mstp_clks[MSTP127]), /* CEU0 */
 	CLKDEV_DEV_ID("sh-mobile-csi2.0", &mstp_clks[MSTP126]), /* CSI2-RX0 */
 	CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP125]), /* TMU00 */
 	CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP125]), /* TMU01 */
 	CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX */
 	CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* I2C0 */
 	CLKDEV_DEV_ID("e6820000.i2c", &mstp_clks[MSTP116]), /* I2C0 */
 	CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */
 	CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP219]), /* SCIFA7 */
 	CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* SY-DMAC */
 	CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* MP-DMAC */
 	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
 	CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]), /* SCIFB */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */
 	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), /* SCIFA2 */
 	CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), /* SCIFA3 */
 	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */
 	CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP331]), /* SCIFA6 */
 	CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */
 	CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), /* FSI */
 	CLKDEV_DEV_ID("sh_irda.0", &mstp_clks[MSTP325]), /* IrDA */
 	CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* I2C1 */
 	CLKDEV_DEV_ID("e6822000.i2c", &mstp_clks[MSTP323]), /* I2C1 */
 	CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP322]), /* USB */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */
 	CLKDEV_DEV_ID("ee100000.sdhi", &mstp_clks[MSTP314]), /* SDHI0 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
 	CLKDEV_DEV_ID("ee120000.sdhi", &mstp_clks[MSTP313]), /* SDHI1 */
 	CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */
 	CLKDEV_DEV_ID("e6bd0000.mmcif", &mstp_clks[MSTP312]), /* MMCIF0 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP311]), /* SDHI2 */
 	CLKDEV_DEV_ID("ee140000.sdhi", &mstp_clks[MSTP311]), /* SDHI2 */
 	CLKDEV_DEV_ID("leds-renesas-tpu.12", &mstp_clks[MSTP303]), /* TPU1 */
 	CLKDEV_DEV_ID("leds-renesas-tpu.21", &mstp_clks[MSTP302]), /* TPU2 */
 	CLKDEV_DEV_ID("leds-renesas-tpu.30", &mstp_clks[MSTP301]), /* TPU3 */
 	CLKDEV_DEV_ID("leds-renesas-tpu.41", &mstp_clks[MSTP300]), /* TPU4 */
 	CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* I2C3 */
 	CLKDEV_DEV_ID("e6826000.i2c", &mstp_clks[MSTP411]), /* I2C3 */
 	CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* I2C4 */
 	CLKDEV_DEV_ID("e6828000.i2c", &mstp_clks[MSTP410]), /* I2C4 */
 	CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */
 };

 void __init sh73a0_clock_init(void)
 {
 	int k, ret = 0;

 	/* Set SDHI clocks to a known state */
 	__raw_writel(0x108, SD0CKCR);
 	__raw_writel(0x108, SD1CKCR);
 	__raw_writel(0x108, SD2CKCR);

 	/* detect main clock parent */
 	switch ((__raw_readl(CKSCR) >> 28) & 0x03) {
 	case 0:
 		main_clk.parent = &sh73a0_extal1_clk;
 		break;
 	case 1:
 		main_clk.parent = &extal1_div2_clk;
 		break;
 	case 2:
 		main_clk.parent = &sh73a0_extal2_clk;
 		break;
 	case 3:
 		main_clk.parent = &extal2_div2_clk;
 		break;
 	}

 	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_reparent_register(div6_clks, DIV6_NR);

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

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

 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));

 	if (!ret)
 		shmobile_clk_init();
 	else
 		panic("failed to setup sh73a0 clocks\n");
 }
	/*
	* sh73a0 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; either 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*/
	#include <linux/init.h>
	#include <linux/kernel.h>
	#include <linux/io.h>
	#include <linux/sh_clk.h>
	#include <linux/clkdev.h>
	#include <asm/processor.h>
	#include <mach/clock.h>
	#include <mach/common.h>

	#define FRQCRA IOMEM(0xe6150000)
	#define FRQCRB IOMEM(0xe6150004)
	#define FRQCRD IOMEM(0xe61500e4)
	#define VCLKCR1 IOMEM(0xe6150008)
	#define VCLKCR2 IOMEM(0xe615000C)
	#define VCLKCR3 IOMEM(0xe615001C)
	#define ZBCKCR IOMEM(0xe6150010)
	#define FLCKCR IOMEM(0xe6150014)
	#define SD0CKCR IOMEM(0xe6150074)
	#define SD1CKCR IOMEM(0xe6150078)
	#define SD2CKCR IOMEM(0xe615007C)
	#define FSIACKCR IOMEM(0xe6150018)
	#define FSIBCKCR IOMEM(0xe6150090)
	#define SUBCKCR IOMEM(0xe6150080)
	#define SPUACKCR IOMEM(0xe6150084)
	#define SPUVCKCR IOMEM(0xe6150094)
	#define MSUCKCR IOMEM(0xe6150088)
	#define HSICKCR IOMEM(0xe615008C)
	#define MFCK1CR IOMEM(0xe6150098)
	#define MFCK2CR IOMEM(0xe615009C)
	#define DSITCKCR IOMEM(0xe6150060)
	#define DSI0PCKCR IOMEM(0xe6150064)
	#define DSI1PCKCR IOMEM(0xe6150068)
	#define DSI0PHYCR 0xe615006C
	#define DSI1PHYCR 0xe6150070
	#define PLLECR IOMEM(0xe61500d0)
	#define PLL0CR IOMEM(0xe61500d8)
	#define PLL1CR IOMEM(0xe6150028)
	#define PLL2CR IOMEM(0xe615002c)
	#define PLL3CR IOMEM(0xe61500dc)
	#define SMSTPCR0 IOMEM(0xe6150130)
	#define SMSTPCR1 IOMEM(0xe6150134)
	#define SMSTPCR2 IOMEM(0xe6150138)
	#define SMSTPCR3 IOMEM(0xe615013c)
	#define SMSTPCR4 IOMEM(0xe6150140)
	#define SMSTPCR5 IOMEM(0xe6150144)
	#define CKSCR IOMEM(0xe61500c0)

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

	/*
	* 26MHz default rate for the EXTAL1 root input clock.
	* If needed, reset this with clk_set_rate() from the platform code.
	*/
	struct clk sh73a0_extal1_clk = {
	.rate = 26000000,
	};

	/*
	* 48MHz default rate for the EXTAL2 root input clock.
	* If needed, reset this with clk_set_rate() from the platform code.
	*/
	struct clk sh73a0_extal2_clk = {
	.rate = 48000000,
	};

	static struct sh_clk_ops main_clk_ops = {
	.recalc = followparent_recalc,
	};

	/* Main clock */
	static struct clk main_clk = {
	/* .parent wll be set on sh73a0_clock_init() */
	.ops = &main_clk_ops,
	};

	/* PLL0, PLL1, PLL2, PLL3 */
	static unsigned long pll_recalc(struct clk *clk)
	{
	unsigned long mult = 1;

	if (__raw_readl(PLLECR) & (1 << clk->enable_bit)) {
	mult = (((__raw_readl(clk->enable_reg) >> 24) & 0x3f) + 1);
	/* handle CFG bit for PLL1 and PLL2 */
	switch (clk->enable_bit) {
	case 1:
	case 2:
	if (__raw_readl(clk->enable_reg) & (1 << 20))
	mult *= 2;
	}
	}

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

	static struct sh_clk_ops pll_clk_ops = {
	.recalc = pll_recalc,
	};

	static struct clk pll0_clk = {
	.ops = &pll_clk_ops,
	.flags = CLK_ENABLE_ON_INIT,
	.parent = &main_clk,
	.enable_reg = (void __iomem *)PLL0CR,
	.enable_bit = 0,
	};

	static struct clk pll1_clk = {
	.ops = &pll_clk_ops,
	.flags = CLK_ENABLE_ON_INIT,
	.parent = &main_clk,
	.enable_reg = (void __iomem *)PLL1CR,
	.enable_bit = 1,
	};

	static struct clk pll2_clk = {
	.ops = &pll_clk_ops,
	.flags = CLK_ENABLE_ON_INIT,
	.parent = &main_clk,
	.enable_reg = (void __iomem *)PLL2CR,
	.enable_bit = 2,
	};

	static struct clk pll3_clk = {
	.ops = &pll_clk_ops,
	.flags = CLK_ENABLE_ON_INIT,
	.parent = &main_clk,
	.enable_reg = (void __iomem *)PLL3CR,
	.enable_bit = 3,
	};

	/* A fixed divide block */
	SH_CLK_RATIO(div2, 1, 2);
	SH_CLK_RATIO(div7, 1, 7);
	SH_CLK_RATIO(div13, 1, 13);

	SH_FIXED_RATIO_CLK(extal1_div2_clk, sh73a0_extal1_clk, div2);
	SH_FIXED_RATIO_CLK(extal2_div2_clk, sh73a0_extal2_clk, div2);
	SH_FIXED_RATIO_CLK(main_div2_clk, main_clk, div2);
	SH_FIXED_RATIO_CLK(pll1_div2_clk, pll1_clk, div2);
	SH_FIXED_RATIO_CLK(pll1_div7_clk, pll1_clk, div7);
	SH_FIXED_RATIO_CLK(pll1_div13_clk, pll1_clk, div13);

	/* External input clock */
	struct clk sh73a0_extcki_clk = {
	};

	struct clk sh73a0_extalr_clk = {
	};

	static struct clk *main_clks[] = {
	&r_clk,
	&sh73a0_extal1_clk,
	&sh73a0_extal2_clk,
	&extal1_div2_clk,
	&extal2_div2_clk,
	&main_clk,
	&main_div2_clk,
	&pll0_clk,
	&pll1_clk,
	&pll2_clk,
	&pll3_clk,
	&pll1_div2_clk,
	&pll1_div7_clk,
	&pll1_div13_clk,
	&sh73a0_extcki_clk,
	&sh73a0_extalr_clk,
	};

	static int frqcr_kick(void)
	{
	int i;

	/* set KICK bit in FRQCRB to update hardware setting, check success */
	__raw_writel(__raw_readl(FRQCRB) \| (1 << 31), FRQCRB);
	for (i = 1000; i; i--)
	if (__raw_readl(FRQCRB) & (1 << 31))
	cpu_relax();
	else
	return i;

	return -ETIMEDOUT;
	}

	static void div4_kick(struct clk *clk)
	{
	frqcr_kick();
	}

	static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
	24, 0, 36, 48, 7 };

	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_ZG, DIV4_M3, DIV4_B, DIV4_M1, DIV4_M2,
	DIV4_Z, DIV4_ZX, DIV4_HP, DIV4_NR };

	#define DIV4(_reg, _bit, _mask, _flags) \
	SH_CLK_DIV4(&pll1_clk, _reg, _bit, _mask, _flags)

	static struct clk div4_clks[DIV4_NR] = {
	[DIV4_I] = DIV4(FRQCRA, 20, 0xdff, CLK_ENABLE_ON_INIT),
	[DIV4_ZG] = SH_CLK_DIV4(&pll0_clk, FRQCRA, 16, 0xd7f, CLK_ENABLE_ON_INIT),
	[DIV4_M3] = DIV4(FRQCRA, 12, 0x1dff, CLK_ENABLE_ON_INIT),
	[DIV4_B] = DIV4(FRQCRA, 8, 0xdff, CLK_ENABLE_ON_INIT),
	[DIV4_M1] = DIV4(FRQCRA, 4, 0x1dff, 0),
	[DIV4_M2] = DIV4(FRQCRA, 0, 0x1dff, 0),
	[DIV4_Z] = SH_CLK_DIV4(&pll0_clk, FRQCRB, 24, 0x97f, 0),
	[DIV4_ZX] = DIV4(FRQCRB, 12, 0xdff, 0),
	[DIV4_HP] = DIV4(FRQCRB, 4, 0xdff, 0),
	};

	static unsigned long twd_recalc(struct clk *clk)
	{
	return clk_get_rate(clk->parent) / 4;
	}

	static struct sh_clk_ops twd_clk_ops = {
	.recalc = twd_recalc,
	};

	static struct clk twd_clk = {
	.parent = &div4_clks[DIV4_Z],
	.ops = &twd_clk_ops,
	};

	enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1,
	DIV6_FLCTL, DIV6_SDHI0, DIV6_SDHI1, DIV6_SDHI2,
	DIV6_FSIA, DIV6_FSIB, DIV6_SUB,
	DIV6_SPUA, DIV6_SPUV, DIV6_MSU,
	DIV6_HSI, DIV6_MFG1, DIV6_MFG2,
	DIV6_DSIT, DIV6_DSI0P, DIV6_DSI1P,
	DIV6_NR };

	static struct clk *vck_parent[8] = {
	[0] = &pll1_div2_clk,
	[1] = &pll2_clk,
	[2] = &sh73a0_extcki_clk,
	[3] = &sh73a0_extal2_clk,
	[4] = &main_div2_clk,
	[5] = &sh73a0_extalr_clk,
	[6] = &main_clk,
	};

	static struct clk *pll_parent[4] = {
	[0] = &pll1_div2_clk,
	[1] = &pll2_clk,
	[2] = &pll1_div13_clk,
	};

	static struct clk *hsi_parent[4] = {
	[0] = &pll1_div2_clk,
	[1] = &pll2_clk,
	[2] = &pll1_div7_clk,
	};

	static struct clk *pll_extal2_parent[] = {
	[0] = &pll1_div2_clk,
	[1] = &pll2_clk,
	[2] = &sh73a0_extal2_clk,
	[3] = &sh73a0_extal2_clk,
	};

	static struct clk *dsi_parent[8] = {
	[0] = &pll1_div2_clk,
	[1] = &pll2_clk,
	[2] = &main_clk,
	[3] = &sh73a0_extal2_clk,
	[4] = &sh73a0_extcki_clk,
	};

	static struct clk div6_clks[DIV6_NR] = {
	[DIV6_VCK1] = SH_CLK_DIV6_EXT(VCLKCR1, 0,
	vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
	[DIV6_VCK2] = SH_CLK_DIV6_EXT(VCLKCR2, 0,
	vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
	[DIV6_VCK3] = SH_CLK_DIV6_EXT(VCLKCR3, 0,
	vck_parent, ARRAY_SIZE(vck_parent), 12, 3),
	[DIV6_ZB1] = SH_CLK_DIV6_EXT(ZBCKCR, CLK_ENABLE_ON_INIT,
	pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
	[DIV6_FLCTL] = SH_CLK_DIV6_EXT(FLCKCR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
	[DIV6_SDHI0] = SH_CLK_DIV6_EXT(SD0CKCR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
	[DIV6_SDHI1] = SH_CLK_DIV6_EXT(SD1CKCR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
	[DIV6_SDHI2] = SH_CLK_DIV6_EXT(SD2CKCR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 6, 2),
	[DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 6, 1),
	[DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 6, 1),
	[DIV6_SUB] = SH_CLK_DIV6_EXT(SUBCKCR, 0,
	pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
	[DIV6_SPUA] = SH_CLK_DIV6_EXT(SPUACKCR, 0,
	pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
	[DIV6_SPUV] = SH_CLK_DIV6_EXT(SPUVCKCR, 0,
	pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2),
	[DIV6_MSU] = SH_CLK_DIV6_EXT(MSUCKCR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
	[DIV6_HSI] = SH_CLK_DIV6_EXT(HSICKCR, 0,
	hsi_parent, ARRAY_SIZE(hsi_parent), 6, 2),
	[DIV6_MFG1] = SH_CLK_DIV6_EXT(MFCK1CR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
	[DIV6_MFG2] = SH_CLK_DIV6_EXT(MFCK2CR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
	[DIV6_DSIT] = SH_CLK_DIV6_EXT(DSITCKCR, 0,
	pll_parent, ARRAY_SIZE(pll_parent), 7, 1),
	[DIV6_DSI0P] = SH_CLK_DIV6_EXT(DSI0PCKCR, 0,
	dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3),
	[DIV6_DSI1P] = SH_CLK_DIV6_EXT(DSI1PCKCR, 0,
	dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3),
	};

	/* DSI DIV */
	static unsigned long dsiphy_recalc(struct clk *clk)
	{
	u32 value;

	value = __raw_readl(clk->mapping->base);

	/* FIXME */
	if (!(value & 0x000B8000))
	return clk->parent->rate;

	value &= 0x3f;
	value += 1;

	if ((value < 12) \|\|
	(value > 33)) {
	pr_err("DSIPHY has wrong value (%d)", value);
	return 0;
	}

	return clk->parent->rate / value;
	}

	static long dsiphy_round_rate(struct clk *clk, unsigned long rate)
	{
	return clk_rate_mult_range_round(clk, 12, 33, rate);
	}

	static void dsiphy_disable(struct clk *clk)
	{
	u32 value;

	value = __raw_readl(clk->mapping->base);
	value &= ~0x000B8000;

	__raw_writel(value , clk->mapping->base);
	}

	static int dsiphy_enable(struct clk *clk)
	{
	u32 value;
	int multi;

	value = __raw_readl(clk->mapping->base);
	multi = (value & 0x3f) + 1;

	if ((multi < 12) \|\| (multi > 33))
	return -EIO;

	__raw_writel(value \| 0x000B8000, clk->mapping->base);

	return 0;
	}

	static int dsiphy_set_rate(struct clk *clk, unsigned long rate)
	{
	u32 value;
	int idx;

	idx = rate / clk->parent->rate;
	if ((idx < 12) \|\| (idx > 33))
	return -EINVAL;

	idx += -1;

	value = __raw_readl(clk->mapping->base);
	value = (value & ~0x3f) + idx;

	__raw_writel(value, clk->mapping->base);

	return 0;
	}

	static struct sh_clk_ops dsiphy_clk_ops = {
	.recalc = dsiphy_recalc,
	.round_rate = dsiphy_round_rate,
	.set_rate = dsiphy_set_rate,
	.enable = dsiphy_enable,
	.disable = dsiphy_disable,
	};

	static struct clk_mapping dsi0phy_clk_mapping = {
	.phys = DSI0PHYCR,
	.len = 4,
	};

	static struct clk_mapping dsi1phy_clk_mapping = {
	.phys = DSI1PHYCR,
	.len = 4,
	};

	static struct clk dsi0phy_clk = {
	.ops = &dsiphy_clk_ops,
	.parent = &div6_clks[DIV6_DSI0P], /* late install */
	.mapping = &dsi0phy_clk_mapping,
	};

	static struct clk dsi1phy_clk = {
	.ops = &dsiphy_clk_ops,
	.parent = &div6_clks[DIV6_DSI1P], /* late install */
	.mapping = &dsi1phy_clk_mapping,
	};

	static struct clk *late_main_clks[] = {
	&dsi0phy_clk,
	&dsi1phy_clk,
	&twd_clk,
	};

	enum { MSTP001,
	MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP100,
	MSTP219, MSTP218, MSTP217,
	MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
	MSTP331, MSTP329, MSTP328, MSTP325, MSTP323, MSTP322,
	MSTP314, MSTP313, MSTP312, MSTP311,
	MSTP303, MSTP302, MSTP301, MSTP300,
	MSTP411, MSTP410, MSTP403,
	MSTP_NR };

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

	static struct clk mstp_clks[MSTP_NR] = {
	[MSTP001] = MSTP(&div4_clks[DIV4_HP], SMSTPCR0, 1, 0), /* IIC2 */
	[MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* CEU1 */
	[MSTP128] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 28, 0), /* CSI2-RX1 */
	[MSTP127] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 27, 0), /* CEU0 */
	[MSTP126] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 26, 0), /* CSI2-RX0 */
	[MSTP125] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */
	[MSTP118] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 18, 0), /* DSITX0 */
	[MSTP116] = MSTP(&div4_clks[DIV4_HP], SMSTPCR1, 16, 0), /* IIC0 */
	[MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */
	[MSTP219] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 19, 0), /* SCIFA7 */
	[MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* SY-DMAC */
	[MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* MP-DMAC */
	[MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
	[MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
	[MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
	[MSTP203] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 3, 0), /* SCIFA1 */
	[MSTP202] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 2, 0), /* SCIFA2 */
	[MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */
	[MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */
	[MSTP331] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 31, 0), /* SCIFA6 */
	[MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
	[MSTP328] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 28, 0), /FSI/
	[MSTP325] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 25, 0), /* IrDA */
	[MSTP323] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 23, 0), /* IIC1 */
	[MSTP322] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 22, 0), /* USB */
	[MSTP314] = MSTP(&div6_clks[DIV6_SDHI0], SMSTPCR3, 14, 0), /* SDHI0 */
	[MSTP313] = MSTP(&div6_clks[DIV6_SDHI1], SMSTPCR3, 13, 0), /* SDHI1 */
	[MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */
	[MSTP311] = MSTP(&div6_clks[DIV6_SDHI2], SMSTPCR3, 11, 0), /* SDHI2 */
	[MSTP303] = MSTP(&main_div2_clk, SMSTPCR3, 3, 0), /* TPU1 */
	[MSTP302] = MSTP(&main_div2_clk, SMSTPCR3, 2, 0), /* TPU2 */
	[MSTP301] = MSTP(&main_div2_clk, SMSTPCR3, 1, 0), /* TPU3 */
	[MSTP300] = MSTP(&main_div2_clk, SMSTPCR3, 0, 0), /* TPU4 */
	[MSTP411] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 11, 0), /* IIC3 */
	[MSTP410] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 10, 0), /* IIC4 */
	[MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */
	};

	/* The lookups structure below includes duplicate entries for some clocks
	* with alternate names.
	* - The traditional name used when a device is initialised with platform data
	* - The name used when a device is initialised using device tree
	* The longer-term aim is to remove these duplicates, and indeed the
	* lookups table entirely, by describing clocks using device tree.
	*/
	static struct clk_lookup lookups[] = {
	/* main clocks */
	CLKDEV_CON_ID("r_clk", &r_clk),
	CLKDEV_DEV_ID("smp_twd", &twd_clk), /* smp_twd */

	/* DIV6 clocks */
	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("sdhi0_clk", &div6_clks[DIV6_SDHI0]),
	CLKDEV_CON_ID("sdhi1_clk", &div6_clks[DIV6_SDHI1]),
	CLKDEV_CON_ID("sdhi2_clk", &div6_clks[DIV6_SDHI2]),
	CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSIT]),
	CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSIT]),
	CLKDEV_ICK_ID("dsip_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSI0P]),
	CLKDEV_ICK_ID("dsip_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSI1P]),
	CLKDEV_ICK_ID("dsiphy_clk", "sh-mipi-dsi.0", &dsi0phy_clk),
	CLKDEV_ICK_ID("dsiphy_clk", "sh-mipi-dsi.1", &dsi1phy_clk),

	/* MSTP32 clocks */
	CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* I2C2 */
	CLKDEV_DEV_ID("e6824000.i2c", &mstp_clks[MSTP001]), /* I2C2 */
	CLKDEV_DEV_ID("sh_mobile_ceu.1", &mstp_clks[MSTP129]), /* CEU1 */
	CLKDEV_DEV_ID("sh-mobile-csi2.1", &mstp_clks[MSTP128]), /* CSI2-RX1 */
	CLKDEV_DEV_ID("sh_mobile_ceu.0", &mstp_clks[MSTP127]), /* CEU0 */
	CLKDEV_DEV_ID("sh-mobile-csi2.0", &mstp_clks[MSTP126]), /* CSI2-RX0 */
	CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP125]), /* TMU00 */
	CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP125]), /* TMU01 */
	CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX */
	CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* I2C0 */
	CLKDEV_DEV_ID("e6820000.i2c", &mstp_clks[MSTP116]), /* I2C0 */
	CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */
	CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP219]), /* SCIFA7 */
	CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* SY-DMAC */
	CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* MP-DMAC */
	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
	CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]), /* SCIFB */
	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */
	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), /* SCIFA2 */
	CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), /* SCIFA3 */
	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */
	CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP331]), /* SCIFA6 */
	CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */
	CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), /* FSI */
	CLKDEV_DEV_ID("sh_irda.0", &mstp_clks[MSTP325]), /* IrDA */
	CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* I2C1 */
	CLKDEV_DEV_ID("e6822000.i2c", &mstp_clks[MSTP323]), /* I2C1 */
	CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP322]), /* USB */
	CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */
	CLKDEV_DEV_ID("ee100000.sdhi", &mstp_clks[MSTP314]), /* SDHI0 */
	CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
	CLKDEV_DEV_ID("ee120000.sdhi", &mstp_clks[MSTP313]), /* SDHI1 */
	CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */
	CLKDEV_DEV_ID("e6bd0000.mmcif", &mstp_clks[MSTP312]), /* MMCIF0 */
	CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP311]), /* SDHI2 */
	CLKDEV_DEV_ID("ee140000.sdhi", &mstp_clks[MSTP311]), /* SDHI2 */
	CLKDEV_DEV_ID("leds-renesas-tpu.12", &mstp_clks[MSTP303]), /* TPU1 */
	CLKDEV_DEV_ID("leds-renesas-tpu.21", &mstp_clks[MSTP302]), /* TPU2 */
	CLKDEV_DEV_ID("leds-renesas-tpu.30", &mstp_clks[MSTP301]), /* TPU3 */
	CLKDEV_DEV_ID("leds-renesas-tpu.41", &mstp_clks[MSTP300]), /* TPU4 */
	CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* I2C3 */
	CLKDEV_DEV_ID("e6826000.i2c", &mstp_clks[MSTP411]), /* I2C3 */
	CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* I2C4 */
	CLKDEV_DEV_ID("e6828000.i2c", &mstp_clks[MSTP410]), /* I2C4 */
	CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */
	};

	void __init sh73a0_clock_init(void)
	{
	int k, ret = 0;

	/* Set SDHI clocks to a known state */
	__raw_writel(0x108, SD0CKCR);
	__raw_writel(0x108, SD1CKCR);
	__raw_writel(0x108, SD2CKCR);

	/* detect main clock parent */
	switch ((__raw_readl(CKSCR) >> 28) & 0x03) {
	case 0:
	main_clk.parent = &sh73a0_extal1_clk;
	break;
	case 1:
	main_clk.parent = &extal1_div2_clk;
	break;
	case 2:
	main_clk.parent = &sh73a0_extal2_clk;
	break;
	case 3:
	main_clk.parent = &extal2_div2_clk;
	break;
	}

	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_reparent_register(div6_clks, DIV6_NR);

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

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

	clkdev_add_table(lookups, ARRAY_SIZE(lookups));

	if (!ret)
	shmobile_clk_init();
	else
	panic("failed to setup sh73a0 clocks\n");
	}