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Commit cf285434 authored by Viresh Kumar's avatar Viresh Kumar Committed by Russell King
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ARM: 6679/1: SPEAr: make clk API functions more generic



- Add a dummy clk_set_rate() function.  This is required for compilation
  of a few drivers.
- Make functions in plat-spear/clock.c more generic over all SPEAr
  platforms.
- Add div_factor in struct clk for clks with .recalc = follow_parent
- Change type of register pointers to void __iomem *

Reviewed-by: default avatarStanley Miao <stanley.miao@windriver.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@st.com>
Signed-off-by: default avatarRajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 5c881d9a
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+58 −8
Original line number Original line Diff line number Diff line
@@ -39,10 +39,25 @@ static struct clk rtc_clk = {
};
};


/* clock derived from 24 MHz osc clk */
/* clock derived from 24 MHz osc clk */
/* pll masks structure */
static struct pll_clk_masks pll1_masks = {
	.mode_mask = PLL_MODE_MASK,
	.mode_shift = PLL_MODE_SHIFT,
	.norm_fdbk_m_mask = PLL_NORM_FDBK_M_MASK,
	.norm_fdbk_m_shift = PLL_NORM_FDBK_M_SHIFT,
	.dith_fdbk_m_mask = PLL_DITH_FDBK_M_MASK,
	.dith_fdbk_m_shift = PLL_DITH_FDBK_M_SHIFT,
	.div_p_mask = PLL_DIV_P_MASK,
	.div_p_shift = PLL_DIV_P_SHIFT,
	.div_n_mask = PLL_DIV_N_MASK,
	.div_n_shift = PLL_DIV_N_SHIFT,
};

/* pll1 configuration structure */
/* pll1 configuration structure */
static struct pll_clk_config pll1_config = {
static struct pll_clk_config pll1_config = {
	.mode_reg = PLL1_CTR,
	.mode_reg = PLL1_CTR,
	.cfg_reg = PLL1_FRQ,
	.cfg_reg = PLL1_FRQ,
	.masks = &pll1_masks,
};
};


/* PLL1 clock */
/* PLL1 clock */
@@ -50,7 +65,7 @@ static struct clk pll1_clk = {
	.pclk = &osc_24m_clk,
	.pclk = &osc_24m_clk,
	.en_reg = PLL1_CTR,
	.en_reg = PLL1_CTR,
	.en_reg_bit = PLL_ENABLE,
	.en_reg_bit = PLL_ENABLE,
	.recalc = &pll1_clk_recalc,
	.recalc = &pll_clk_recalc,
	.private_data = &pll1_config,
	.private_data = &pll1_config,
};
};


@@ -76,11 +91,16 @@ static struct clk cpu_clk = {
	.recalc = &follow_parent,
	.recalc = &follow_parent,
};
};


/* ahb masks structure */
static struct bus_clk_masks ahb_masks = {
	.mask = PLL_HCLK_RATIO_MASK,
	.shift = PLL_HCLK_RATIO_SHIFT,
};

/* ahb configuration structure */
/* ahb configuration structure */
static struct bus_clk_config ahb_config = {
static struct bus_clk_config ahb_config = {
	.reg = CORE_CLK_CFG,
	.reg = CORE_CLK_CFG,
	.mask = PLL_HCLK_RATIO_MASK,
	.masks = &ahb_masks,
	.shift = PLL_HCLK_RATIO_SHIFT,
};
};


/* ahb clock */
/* ahb clock */
@@ -91,9 +111,22 @@ static struct clk ahb_clk = {
	.private_data = &ahb_config,
	.private_data = &ahb_config,
};
};


/* auxiliary synthesizers masks */
static struct aux_clk_masks aux_masks = {
	.eq_sel_mask = AUX_EQ_SEL_MASK,
	.eq_sel_shift = AUX_EQ_SEL_SHIFT,
	.eq1_mask = AUX_EQ1_SEL,
	.eq2_mask = AUX_EQ2_SEL,
	.xscale_sel_mask = AUX_XSCALE_MASK,
	.xscale_sel_shift = AUX_XSCALE_SHIFT,
	.yscale_sel_mask = AUX_YSCALE_MASK,
	.yscale_sel_shift = AUX_YSCALE_SHIFT,
};

/* uart configurations */
/* uart configurations */
static struct aux_clk_config uart_config = {
static struct aux_clk_config uart_config = {
	.synth_reg = UART_CLK_SYNT,
	.synth_reg = UART_CLK_SYNT,
	.masks = &aux_masks,
};
};


/* uart parents */
/* uart parents */
@@ -130,6 +163,7 @@ static struct clk uart_clk = {
/* firda configurations */
/* firda configurations */
static struct aux_clk_config firda_config = {
static struct aux_clk_config firda_config = {
	.synth_reg = FIRDA_CLK_SYNT,
	.synth_reg = FIRDA_CLK_SYNT,
	.masks = &aux_masks,
};
};


/* firda parents */
/* firda parents */
@@ -184,9 +218,18 @@ static struct pclk_sel gpt_pclk_sel = {
	.pclk_sel_mask = GPT_CLK_MASK,
	.pclk_sel_mask = GPT_CLK_MASK,
};
};


/* gpt synthesizer masks */
static struct gpt_clk_masks gpt_masks = {
	.mscale_sel_mask = GPT_MSCALE_MASK,
	.mscale_sel_shift = GPT_MSCALE_SHIFT,
	.nscale_sel_mask = GPT_NSCALE_MASK,
	.nscale_sel_shift = GPT_NSCALE_SHIFT,
};

/* gpt0 configurations */
/* gpt0 configurations */
static struct aux_clk_config gpt0_config = {
static struct gpt_clk_config gpt0_config = {
	.synth_reg = PRSC1_CLK_CFG,
	.synth_reg = PRSC1_CLK_CFG,
	.masks = &gpt_masks,
};
};


/* gpt0 timer clock */
/* gpt0 timer clock */
@@ -199,8 +242,9 @@ static struct clk gpt0_clk = {
};
};


/* gpt1 configurations */
/* gpt1 configurations */
static struct aux_clk_config gpt1_config = {
static struct gpt_clk_config gpt1_config = {
	.synth_reg = PRSC2_CLK_CFG,
	.synth_reg = PRSC2_CLK_CFG,
	.masks = &gpt_masks,
};
};


/* gpt1 timer clock */
/* gpt1 timer clock */
@@ -214,8 +258,9 @@ static struct clk gpt1_clk = {
};
};


/* gpt2 configurations */
/* gpt2 configurations */
static struct aux_clk_config gpt2_config = {
static struct gpt_clk_config gpt2_config = {
	.synth_reg = PRSC3_CLK_CFG,
	.synth_reg = PRSC3_CLK_CFG,
	.masks = &gpt_masks,
};
};


/* gpt2 timer clock */
/* gpt2 timer clock */
@@ -253,11 +298,16 @@ static struct clk clcd_clk = {
};
};


/* clock derived from ahb clk */
/* clock derived from ahb clk */
/* apb masks structure */
static struct bus_clk_masks apb_masks = {
	.mask = HCLK_PCLK_RATIO_MASK,
	.shift = HCLK_PCLK_RATIO_SHIFT,
};

/* apb configuration structure */
/* apb configuration structure */
static struct bus_clk_config apb_config = {
static struct bus_clk_config apb_config = {
	.reg = CORE_CLK_CFG,
	.reg = CORE_CLK_CFG,
	.mask = HCLK_PCLK_RATIO_MASK,
	.masks = &apb_masks,
	.shift = HCLK_PCLK_RATIO_SHIFT,
};
};


/* apb clock */
/* apb clock */
+59 −8
Original line number Original line Diff line number Diff line
@@ -39,10 +39,25 @@ static struct clk rtc_clk = {
};
};


/* clock derived from 30 MHz osc clk */
/* clock derived from 30 MHz osc clk */
/* pll masks structure */
static struct pll_clk_masks pll1_masks = {
	.mode_mask = PLL_MODE_MASK,
	.mode_shift = PLL_MODE_SHIFT,
	.norm_fdbk_m_mask = PLL_NORM_FDBK_M_MASK,
	.norm_fdbk_m_shift = PLL_NORM_FDBK_M_SHIFT,
	.dith_fdbk_m_mask = PLL_DITH_FDBK_M_MASK,
	.dith_fdbk_m_shift = PLL_DITH_FDBK_M_SHIFT,
	.div_p_mask = PLL_DIV_P_MASK,
	.div_p_shift = PLL_DIV_P_SHIFT,
	.div_n_mask = PLL_DIV_N_MASK,
	.div_n_shift = PLL_DIV_N_SHIFT,
};

/* pll1 configuration structure */
/* pll1 configuration structure */
static struct pll_clk_config pll1_config = {
static struct pll_clk_config pll1_config = {
	.mode_reg = PLL1_CTR,
	.mode_reg = PLL1_CTR,
	.cfg_reg = PLL1_FRQ,
	.cfg_reg = PLL1_FRQ,
	.masks = &pll1_masks,
};
};


/* PLL1 clock */
/* PLL1 clock */
@@ -50,7 +65,7 @@ static struct clk pll1_clk = {
	.pclk = &osc_30m_clk,
	.pclk = &osc_30m_clk,
	.en_reg = PLL1_CTR,
	.en_reg = PLL1_CTR,
	.en_reg_bit = PLL_ENABLE,
	.en_reg_bit = PLL_ENABLE,
	.recalc = &pll1_clk_recalc,
	.recalc = &pll_clk_recalc,
	.private_data = &pll1_config,
	.private_data = &pll1_config,
};
};


@@ -76,11 +91,16 @@ static struct clk cpu_clk = {
	.recalc = &follow_parent,
	.recalc = &follow_parent,
};
};


/* ahb masks structure */
static struct bus_clk_masks ahb_masks = {
	.mask = PLL_HCLK_RATIO_MASK,
	.shift = PLL_HCLK_RATIO_SHIFT,
};

/* ahb configuration structure */
/* ahb configuration structure */
static struct bus_clk_config ahb_config = {
static struct bus_clk_config ahb_config = {
	.reg = CORE_CLK_CFG,
	.reg = CORE_CLK_CFG,
	.mask = PLL_HCLK_RATIO_MASK,
	.masks = &ahb_masks,
	.shift = PLL_HCLK_RATIO_SHIFT,
};
};


/* ahb clock */
/* ahb clock */
@@ -112,9 +132,22 @@ static struct pclk_sel uart_pclk_sel = {
	.pclk_sel_mask = UART_CLK_MASK,
	.pclk_sel_mask = UART_CLK_MASK,
};
};


/* auxiliary synthesizers masks */
static struct aux_clk_masks aux_masks = {
	.eq_sel_mask = AUX_EQ_SEL_MASK,
	.eq_sel_shift = AUX_EQ_SEL_SHIFT,
	.eq1_mask = AUX_EQ1_SEL,
	.eq2_mask = AUX_EQ2_SEL,
	.xscale_sel_mask = AUX_XSCALE_MASK,
	.xscale_sel_shift = AUX_XSCALE_SHIFT,
	.yscale_sel_mask = AUX_YSCALE_MASK,
	.yscale_sel_shift = AUX_YSCALE_SHIFT,
};

/* uart configurations */
/* uart configurations */
static struct aux_clk_config uart_config = {
static struct aux_clk_config uart_config = {
	.synth_reg = UART_CLK_SYNT,
	.synth_reg = UART_CLK_SYNT,
	.masks = &aux_masks,
};
};


/* uart0 clock */
/* uart0 clock */
@@ -140,6 +173,7 @@ static struct clk uart1_clk = {
/* firda configurations */
/* firda configurations */
static struct aux_clk_config firda_config = {
static struct aux_clk_config firda_config = {
	.synth_reg = FIRDA_CLK_SYNT,
	.synth_reg = FIRDA_CLK_SYNT,
	.masks = &aux_masks,
};
};


/* firda parents */
/* firda parents */
@@ -176,6 +210,7 @@ static struct clk firda_clk = {
/* clcd configurations */
/* clcd configurations */
static struct aux_clk_config clcd_config = {
static struct aux_clk_config clcd_config = {
	.synth_reg = CLCD_CLK_SYNT,
	.synth_reg = CLCD_CLK_SYNT,
	.masks = &aux_masks,
};
};


/* clcd parents */
/* clcd parents */
@@ -230,9 +265,18 @@ static struct pclk_sel gpt_pclk_sel = {
	.pclk_sel_mask = GPT_CLK_MASK,
	.pclk_sel_mask = GPT_CLK_MASK,
};
};


/* gpt synthesizer masks */
static struct gpt_clk_masks gpt_masks = {
	.mscale_sel_mask = GPT_MSCALE_MASK,
	.mscale_sel_shift = GPT_MSCALE_SHIFT,
	.nscale_sel_mask = GPT_NSCALE_MASK,
	.nscale_sel_shift = GPT_NSCALE_SHIFT,
};

/* gpt0_1 configurations */
/* gpt0_1 configurations */
static struct aux_clk_config gpt0_1_config = {
static struct gpt_clk_config gpt0_1_config = {
	.synth_reg = PRSC1_CLK_CFG,
	.synth_reg = PRSC1_CLK_CFG,
	.masks = &gpt_masks,
};
};


/* gpt0 ARM1 subsystem timer clock */
/* gpt0 ARM1 subsystem timer clock */
@@ -254,8 +298,9 @@ static struct clk gpt1_clk = {
};
};


/* gpt2 configurations */
/* gpt2 configurations */
static struct aux_clk_config gpt2_config = {
static struct gpt_clk_config gpt2_config = {
	.synth_reg = PRSC2_CLK_CFG,
	.synth_reg = PRSC2_CLK_CFG,
	.masks = &gpt_masks,
};
};


/* gpt2 timer clock */
/* gpt2 timer clock */
@@ -269,8 +314,9 @@ static struct clk gpt2_clk = {
};
};


/* gpt3 configurations */
/* gpt3 configurations */
static struct aux_clk_config gpt3_config = {
static struct gpt_clk_config gpt3_config = {
	.synth_reg = PRSC3_CLK_CFG,
	.synth_reg = PRSC3_CLK_CFG,
	.masks = &gpt_masks,
};
};


/* gpt3 timer clock */
/* gpt3 timer clock */
@@ -309,11 +355,16 @@ static struct clk usbd_clk = {
};
};


/* clock derived from ahb clk */
/* clock derived from ahb clk */
/* apb masks structure */
static struct bus_clk_masks apb_masks = {
	.mask = HCLK_PCLK_RATIO_MASK,
	.shift = HCLK_PCLK_RATIO_SHIFT,
};

/* apb configuration structure */
/* apb configuration structure */
static struct bus_clk_config apb_config = {
static struct bus_clk_config apb_config = {
	.reg = CORE_CLK_CFG,
	.reg = CORE_CLK_CFG,
	.mask = HCLK_PCLK_RATIO_MASK,
	.masks = &apb_masks,
	.shift = HCLK_PCLK_RATIO_SHIFT,
};
};


/* apb clock */
/* apb clock */
+41 −18
Original line number Original line Diff line number Diff line
@@ -17,7 +17,6 @@
#include <linux/list.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/spinlock.h>
#include <mach/misc_regs.h>
#include <plat/clock.h>
#include <plat/clock.h>


static DEFINE_SPINLOCK(clocks_lock);
static DEFINE_SPINLOCK(clocks_lock);
@@ -187,6 +186,20 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
}
}
EXPORT_SYMBOL(clk_set_parent);
EXPORT_SYMBOL(clk_set_parent);


/**
 * clk_set_rate - set the clock rate for a clock source
 * @clk: clock source
 * @rate: desired clock rate in Hz
 *
 * Returns success (0) or negative errno.
 */
int clk_set_rate(struct clk *clk, unsigned long rate)
{
	/* TODO */
	return -EINVAL;
}
EXPORT_SYMBOL(clk_set_rate);

/* registers clock in platform clock framework */
/* registers clock in platform clock framework */
void clk_register(struct clk_lookup *cl)
void clk_register(struct clk_lookup *cl)
{
{
@@ -212,6 +225,7 @@ void clk_register(struct clk_lookup *cl)
		list_add(&clk->sibling, &clk->pclk->children);
		list_add(&clk->sibling, &clk->pclk->children);
	} else {
	} else {
		/* add clocks with > 1 parent to 1st parent's children list */
		/* add clocks with > 1 parent to 1st parent's children list */
		clk->pclk = clk->pclk_sel->pclk_info[0].pclk;
		list_add(&clk->sibling,
		list_add(&clk->sibling,
			 &clk->pclk_sel->pclk_info[0].pclk->children);
			 &clk->pclk_sel->pclk_info[0].pclk->children);
	}
	}
@@ -283,29 +297,31 @@ static void change_parent(struct clk *cclk, struct clk *pclk)
 * In Dithered mode
 * In Dithered mode
 * rate = (2 * M[15:0] * Fin)/(256 * N * 2^P)
 * rate = (2 * M[15:0] * Fin)/(256 * N * 2^P)
 */
 */
void pll1_clk_recalc(struct clk *clk)
void pll_clk_recalc(struct clk *clk)
{
{
	struct pll_clk_config *config = clk->private_data;
	struct pll_clk_config *config = clk->private_data;
	unsigned int num = 2, den = 0, val, mode = 0;
	unsigned int num = 2, den = 0, val, mode = 0;
	unsigned long flags;
	unsigned long flags;


	spin_lock_irqsave(&clocks_lock, flags);
	spin_lock_irqsave(&clocks_lock, flags);
	mode = (readl(config->mode_reg) >> PLL_MODE_SHIFT) &
	mode = (readl(config->mode_reg) >> config->masks->mode_shift) &
		PLL_MODE_MASK;
		config->masks->mode_mask;


	val = readl(config->cfg_reg);
	val = readl(config->cfg_reg);
	/* calculate denominator */
	/* calculate denominator */
	den = (val >> PLL_DIV_P_SHIFT) & PLL_DIV_P_MASK;
	den = (val >> config->masks->div_p_shift) & config->masks->div_p_mask;
	den = 1 << den;
	den = 1 << den;
	den *= (val >> PLL_DIV_N_SHIFT) & PLL_DIV_N_MASK;
	den *= (val >> config->masks->div_n_shift) & config->masks->div_n_mask;


	/* calculate numerator & denominator */
	/* calculate numerator & denominator */
	if (!mode) {
	if (!mode) {
		/* Normal mode */
		/* Normal mode */
		num *= (val >> PLL_NORM_FDBK_M_SHIFT) & PLL_NORM_FDBK_M_MASK;
		num *= (val >> config->masks->norm_fdbk_m_shift) &
			config->masks->norm_fdbk_m_mask;
	} else {
	} else {
		/* Dithered mode */
		/* Dithered mode */
		num *= (val >> PLL_DITH_FDBK_M_SHIFT) & PLL_DITH_FDBK_M_MASK;
		num *= (val >> config->masks->dith_fdbk_m_shift) &
			config->masks->dith_fdbk_m_mask;
		den *= 256;
		den *= 256;
	}
	}


@@ -321,7 +337,8 @@ void bus_clk_recalc(struct clk *clk)
	unsigned long flags;
	unsigned long flags;


	spin_lock_irqsave(&clocks_lock, flags);
	spin_lock_irqsave(&clocks_lock, flags);
	div = ((readl(config->reg) >> config->shift) & config->mask) + 1;
	div = ((readl(config->reg) >> config->masks->shift) &
			config->masks->mask) + 1;
	clk->rate = (unsigned long)clk->pclk->rate / div;
	clk->rate = (unsigned long)clk->pclk->rate / div;
	spin_unlock_irqrestore(&clocks_lock, flags);
	spin_unlock_irqrestore(&clocks_lock, flags);
}
}
@@ -359,15 +376,18 @@ void aux_clk_recalc(struct clk *clk)
	if (pclk_info->scalable) {
	if (pclk_info->scalable) {
		val = readl(config->synth_reg);
		val = readl(config->synth_reg);


		eqn = (val >> AUX_EQ_SEL_SHIFT) & AUX_EQ_SEL_MASK;
		eqn = (val >> config->masks->eq_sel_shift) &
		if (eqn == AUX_EQ1_SEL)
			config->masks->eq_sel_mask;
		if (eqn == config->masks->eq1_mask)
			den *= 2;
			den *= 2;


		/* calculate numerator */
		/* calculate numerator */
		num = (val >> AUX_XSCALE_SHIFT) & AUX_XSCALE_MASK;
		num = (val >> config->masks->xscale_sel_shift) &
			config->masks->xscale_sel_mask;


		/* calculate denominator */
		/* calculate denominator */
		den *= (val >> AUX_YSCALE_SHIFT) & AUX_YSCALE_MASK;
		den *= (val >> config->masks->yscale_sel_shift) &
			config->masks->yscale_sel_mask;
		val = (((clk->pclk->rate/10000) * num) / den) * 10000;
		val = (((clk->pclk->rate/10000) * num) / den) * 10000;
	} else
	} else
		val = clk->pclk->rate;
		val = clk->pclk->rate;
@@ -383,7 +403,7 @@ void aux_clk_recalc(struct clk *clk)
 */
 */
void gpt_clk_recalc(struct clk *clk)
void gpt_clk_recalc(struct clk *clk)
{
{
	struct aux_clk_config *config = clk->private_data;
	struct gpt_clk_config *config = clk->private_data;
	struct pclk_info *pclk_info = NULL;
	struct pclk_info *pclk_info = NULL;
	unsigned int div = 1, val;
	unsigned int div = 1, val;
	unsigned long flags;
	unsigned long flags;
@@ -402,8 +422,10 @@ void gpt_clk_recalc(struct clk *clk)
	spin_lock_irqsave(&clocks_lock, flags);
	spin_lock_irqsave(&clocks_lock, flags);
	if (pclk_info->scalable) {
	if (pclk_info->scalable) {
		val = readl(config->synth_reg);
		val = readl(config->synth_reg);
		div += (val >> GPT_MSCALE_SHIFT) & GPT_MSCALE_MASK;
		div += (val >> config->masks->mscale_sel_shift) &
		div *= 1 << (((val >> GPT_NSCALE_SHIFT) & GPT_NSCALE_MASK) + 1);
			config->masks->mscale_sel_mask;
		div *= 1 << (((val >> config->masks->nscale_sel_shift) &
					config->masks->nscale_sel_mask) + 1);
	}
	}


	clk->rate = (unsigned long)clk->pclk->rate / div;
	clk->rate = (unsigned long)clk->pclk->rate / div;
@@ -411,15 +433,16 @@ void gpt_clk_recalc(struct clk *clk)
}
}


/*
/*
 * Used for clocks that always have same value as the parent clock divided by a
 * Used for clocks that always have value as the parent clock divided by a
 * fixed divisor
 * fixed divisor
 */
 */
void follow_parent(struct clk *clk)
void follow_parent(struct clk *clk)
{
{
	unsigned long flags;
	unsigned long flags;
	unsigned int div_factor = (clk->div_factor < 1) ? 1 : clk->div_factor;


	spin_lock_irqsave(&clocks_lock, flags);
	spin_lock_irqsave(&clocks_lock, flags);
	clk->rate = clk->pclk->rate;
	clk->rate = clk->pclk->rate/div_factor;
	spin_unlock_irqrestore(&clocks_lock, flags);
	spin_unlock_irqrestore(&clocks_lock, flags);
}
}


+56 −12
Original line number Original line Diff line number Diff line
@@ -54,7 +54,7 @@ struct pclk_info {
struct pclk_sel {
struct pclk_sel {
	struct pclk_info *pclk_info;
	struct pclk_info *pclk_info;
	u8 pclk_count;
	u8 pclk_count;
	unsigned int *pclk_sel_reg;
	void __iomem *pclk_sel_reg;
	unsigned int pclk_sel_mask;
	unsigned int pclk_sel_mask;
};
};


@@ -67,6 +67,7 @@ struct pclk_sel {
 * @en_reg_bit: clk enable/disable bit
 * @en_reg_bit: clk enable/disable bit
 * @ops: clk enable/disable ops - generic_clkops selected if NULL
 * @ops: clk enable/disable ops - generic_clkops selected if NULL
 * @recalc: pointer to clock rate recalculate function
 * @recalc: pointer to clock rate recalculate function
 * @div_factor: division factor to parent clock. Only for recalc = follow_parent
 * @pclk: current parent clk
 * @pclk: current parent clk
 * @pclk_sel: pointer to parent selection structure
 * @pclk_sel: pointer to parent selection structure
 * @pclk_sel_shift: register shift for selecting parent of this clock
 * @pclk_sel_shift: register shift for selecting parent of this clock
@@ -78,10 +79,11 @@ struct clk {
	unsigned int usage_count;
	unsigned int usage_count;
	unsigned int flags;
	unsigned int flags;
	unsigned long rate;
	unsigned long rate;
	unsigned int *en_reg;
	void __iomem *en_reg;
	u8 en_reg_bit;
	u8 en_reg_bit;
	const struct clkops *ops;
	const struct clkops *ops;
	void (*recalc) (struct clk *);
	void (*recalc) (struct clk *);
	unsigned int div_factor;


	struct clk *pclk;
	struct clk *pclk;
	struct pclk_sel *pclk_sel;
	struct pclk_sel *pclk_sel;
@@ -93,23 +95,65 @@ struct clk {
};
};


/* pll configuration structure */
/* pll configuration structure */
struct pll_clk_masks {
	u32 mode_mask;
	u32 mode_shift;

	u32 norm_fdbk_m_mask;
	u32 norm_fdbk_m_shift;
	u32 dith_fdbk_m_mask;
	u32 dith_fdbk_m_shift;
	u32 div_p_mask;
	u32 div_p_shift;
	u32 div_n_mask;
	u32 div_n_shift;
};

struct pll_clk_config {
struct pll_clk_config {
	unsigned int *mode_reg;
	void __iomem *mode_reg;
	unsigned int *cfg_reg;
	void __iomem *cfg_reg;
	struct pll_clk_masks *masks;
};
};


/* ahb and apb bus configuration structure */
/* ahb and apb bus configuration structure */
struct bus_clk_masks {
	u32 mask;
	u32 shift;
};

struct bus_clk_config {
struct bus_clk_config {
	unsigned int *reg;
	void __iomem *reg;
	unsigned int mask;
	struct bus_clk_masks *masks;
	unsigned int shift;
};

/* Aux clk configuration structure: applicable to UART and FIRDA */
struct aux_clk_masks {
	u32 eq_sel_mask;
	u32 eq_sel_shift;
	u32 eq1_mask;
	u32 eq2_mask;
	u32 xscale_sel_mask;
	u32 xscale_sel_shift;
	u32 yscale_sel_mask;
	u32 yscale_sel_shift;
};
};


/*
 * Aux clk configuration structure: applicable to GPT, UART and FIRDA
 */
struct aux_clk_config {
struct aux_clk_config {
	unsigned int *synth_reg;
	void __iomem *synth_reg;
	struct aux_clk_masks *masks;
};

/* GPT clk configuration structure */
struct gpt_clk_masks {
	u32 mscale_sel_mask;
	u32 mscale_sel_shift;
	u32 nscale_sel_mask;
	u32 nscale_sel_shift;
};

struct gpt_clk_config {
	void __iomem *synth_reg;
	struct gpt_clk_masks *masks;
};
};


/* platform specific clock functions */
/* platform specific clock functions */
@@ -118,7 +162,7 @@ void recalc_root_clocks(void);


/* clock recalc functions */
/* clock recalc functions */
void follow_parent(struct clk *clk);
void follow_parent(struct clk *clk);
void pll1_clk_recalc(struct clk *clk);
void pll_clk_recalc(struct clk *clk);
void bus_clk_recalc(struct clk *clk);
void bus_clk_recalc(struct clk *clk);
void gpt_clk_recalc(struct clk *clk);
void gpt_clk_recalc(struct clk *clk);
void aux_clk_recalc(struct clk *clk);
void aux_clk_recalc(struct clk *clk);