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Subject[PATCH C 05/13] OMAP2/3 clock: fix DPLL rate calculation
Date
From: Tero Kristo <tero.kristo@nokia.com>

Removes the clksel-based DPLL rate handling from the OMAP3 clock tree.
In its place, omap2_get_dpll_rate() now has code to determine whether the DPLL
is bypassed. This obsoletes several clocks, which are removed by this patch.

Also, previously, the OMAP2xxx code returned the wrong value for the
DPLL rate under some conditions. Move the CORE_CLK rate recalculation
to clock24xx.c:omap2xxx_clk_get_core_rate().

This patch is a collaboration between Tero Kristo <tero.kristo@nokia.com>
and Paul Walmsley <paul@pwsan.com>. Thanks to Peter de Schrijver
<peter.de-schrijver@nokia.com> for help debugging and Kevin Hilman
<khilman@deeprootsystems.com> for reporting the OMAP2 build problems with
an earlier version of this patch.

linux-omap source commits are 3241b19e23fb95cf03d0e9747273458cfb82d7aa,
88b5d9b6872be2d944895ca0f6c236f262e4e8d3, and
18a550088456d3c39e4eccf901ddd8669dbe6ee3.

Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Peter de Schrijver <peter.de-schrijver@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
arch/arm/mach-omap2/clock.c | 43 +++++++-
arch/arm/mach-omap2/clock.h | 15 +++
arch/arm/mach-omap2/clock24xx.c | 43 +++++---
arch/arm/mach-omap2/clock24xx.h | 2
arch/arm/mach-omap2/clock34xx.c | 4 -
arch/arm/mach-omap2/clock34xx.h | 169 +++----------------------------
arch/arm/mach-omap2/memory.c | 2
arch/arm/plat-omap/include/mach/clock.h | 13 +-
8 files changed, 105 insertions(+), 186 deletions(-)
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index d902309..b517469 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -136,22 +136,53 @@ void omap2_init_clksel_parent(struct clk *clk)
return;
}

-/* Returns the DPLL rate */
+/**
+ * omap2_get_dpll_rate - returns the current DPLL CLKOUT rate
+ * @clk: struct clk * of a DPLL
+ *
+ * DPLLs can be locked or bypassed - basically, enabled or disabled.
+ * When locked, the DPLL output depends on the M and N values. When
+ * bypassed, on OMAP2xxx, the output rate is either the 32KiHz clock
+ * or sys_clk. Bypass rates on OMAP3 depend on the DPLL: DPLLs 1 and
+ * 2 are bypassed with dpll1_fclk and dpll2_fclk respectively
+ * (generated by DPLL3), while DPLL 3, 4, and 5 bypass rates are sys_clk.
+ * Returns the current DPLL CLKOUT rate (*not* CLKOUTX2) if the DPLL is
+ * locked, or the appropriate bypass rate if the DPLL is bypassed, or 0
+ * if the clock @clk is not a DPLL.
+ */
u32 omap2_get_dpll_rate(struct clk *clk)
{
long long dpll_clk;
- u32 dpll_mult, dpll_div, dpll;
+ u32 dpll_mult, dpll_div, v;
struct dpll_data *dd;

dd = clk->dpll_data;
- /* REVISIT: What do we return on error? */
if (!dd)
return 0;

- dpll = __raw_readl(dd->mult_div1_reg);
- dpll_mult = dpll & dd->mult_mask;
+ /* Return bypass rate if DPLL is bypassed */
+ v = __raw_readl(dd->control_reg);
+ v &= dd->enable_mask;
+ v >>= __ffs(dd->enable_mask);
+
+ if (cpu_is_omap24xx()) {
+
+ if (v == OMAP2XXX_EN_DPLL_LPBYPASS ||
+ v == OMAP2XXX_EN_DPLL_FRBYPASS)
+ return clk->parent->rate;
+
+ } else if (cpu_is_omap34xx()) {
+
+ if (v == OMAP3XXX_EN_DPLL_LPBYPASS ||
+ v == OMAP3XXX_EN_DPLL_FRBYPASS)
+ return dd->bypass_clk->rate;
+
+ }
+
+ v = __raw_readl(dd->mult_div1_reg);
+ dpll_mult = v & dd->mult_mask;
dpll_mult >>= __ffs(dd->mult_mask);
- dpll_div = dpll & dd->div1_mask;
+ dpll_div = v & dd->div1_mask;
dpll_div >>= __ffs(dd->div1_mask);

dpll_clk = (long long)clk->parent->rate * dpll_mult;
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 3fa2e26..72bb320 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -21,6 +21,21 @@
/* The maximum error between a target DPLL rate and the rounded rate in Hz */
#define DEFAULT_DPLL_RATE_TOLERANCE 50000

+/* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */
+#define CORE_CLK_SRC_32K 0x0
+#define CORE_CLK_SRC_DPLL 0x1
+#define CORE_CLK_SRC_DPLL_X2 0x2
+
+/* OMAP2xxx CM_CLKEN_PLL.EN_DPLL bits - for omap2_get_dpll_rate() */
+#define OMAP2XXX_EN_DPLL_LPBYPASS 0x1
+#define OMAP2XXX_EN_DPLL_FRBYPASS 0x2
+#define OMAP2XXX_EN_DPLL_LOCKED 0x3
+
+/* OMAP3xxx CM_CLKEN_PLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */
+#define OMAP3XXX_EN_DPLL_LPBYPASS 0x5
+#define OMAP3XXX_EN_DPLL_FRBYPASS 0x6
+#define OMAP3XXX_EN_DPLL_LOCKED 0x7
+
int omap2_clk_init(void);
int omap2_clk_enable(struct clk *clk);
void omap2_clk_disable(struct clk *clk);
diff --git a/arch/arm/mach-omap2/clock24xx.c b/arch/arm/mach-omap2/clock24xx.c
index 8533c3a..a2c13ef 100644
--- a/arch/arm/mach-omap2/clock24xx.c
+++ b/arch/arm/mach-omap2/clock24xx.c
@@ -61,19 +61,32 @@ static struct clk *sclk;
* Omap24xx specific clock functions
*-------------------------------------------------------------------------*/

-/* This actually returns the rate of core_ck, not dpll_ck. */
-static u32 omap2_get_dpll_rate_24xx(struct clk *tclk)
+/**
+ * omap2xxx_clk_get_core_rate - return the CORE_CLK rate
+ * @clk: pointer to the combined dpll_ck + core_ck (currently "dpll_ck")
+ *
+ * Returns the CORE_CLK rate. CORE_CLK can have one of three rate
+ * sources on OMAP2xxx: the DPLL CLKOUT rate, DPLL CLKOUTX2, or 32KHz
+ * (the latter is unusual). This currently should be called with
+ * struct clk *dpll_ck, which is a composite clock of dpll_ck and
+ * core_ck.
+ */
+static u32 omap2xxx_clk_get_core_rate(struct clk *clk)
{
- long long dpll_clk;
- u8 amult;
+ long long core_clk;
+ u32 v;

- dpll_clk = omap2_get_dpll_rate(tclk);
+ core_clk = omap2_get_dpll_rate(clk);

- amult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
- amult &= OMAP24XX_CORE_CLK_SRC_MASK;
- dpll_clk *= amult;
+ v = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+ v &= OMAP24XX_CORE_CLK_SRC_MASK;

- return dpll_clk;
+ if (v == CORE_CLK_SRC_32K)
+ core_clk = 32768;
+ else
+ core_clk *= v;
+
+ return core_clk;
}

static int omap2_enable_osc_ck(struct clk *clk)
@@ -173,7 +186,7 @@ static long omap2_dpllcore_round_rate(unsigned long target_rate)

static void omap2_dpllcore_recalc(struct clk *clk)
{
- clk->rate = omap2_get_dpll_rate_24xx(clk);
+ clk->rate = omap2xxx_clk_get_core_rate(clk);

propagate_rate(clk);
}
@@ -188,7 +201,7 @@ static int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
int ret = -EINVAL;

local_irq_save(flags);
- cur_rate = omap2_get_dpll_rate_24xx(&dpll_ck);
+ cur_rate = omap2xxx_clk_get_core_rate(&dpll_ck);
mult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
mult &= OMAP24XX_CORE_CLK_SRC_MASK;

@@ -326,7 +339,7 @@ static int omap2_select_table_rate(struct clk *clk, unsigned long rate)
}

curr_prcm_set = prcm;
- cur_rate = omap2_get_dpll_rate_24xx(&dpll_ck);
+ cur_rate = omap2xxx_clk_get_core_rate(&dpll_ck);

if (prcm->dpll_speed == cur_rate / 2) {
omap2_reprogram_sdrc(CORE_CLK_SRC_DPLL, 1);
@@ -535,8 +548,10 @@ void __init omap2_clk_rewrite_base(struct clk *clk)
{
omap2_clk_check_reg(clk->flags, &clk->clksel_reg);
omap2_clk_check_reg(clk->flags, &clk->enable_reg);
- if (clk->dpll_data)
+ if (clk->dpll_data) {
omap2_clk_check_reg(0, &clk->dpll_data->mult_div1_reg);
+ omap2_clk_check_reg(0, &clk->dpll_data->control_reg);
+ }
}

int __init omap2_clk_init(void)
@@ -579,7 +594,7 @@ int __init omap2_clk_init(void)
}

/* Check the MPU rate set by bootloader */
- clkrate = omap2_get_dpll_rate_24xx(&dpll_ck);
+ clkrate = omap2xxx_clk_get_core_rate(&dpll_ck);
for (prcm = rate_table; prcm->mpu_speed; prcm++) {
if (!(prcm->flags & cpu_mask))
continue;
diff --git a/arch/arm/mach-omap2/clock24xx.h b/arch/arm/mach-omap2/clock24xx.h
index 2587c3d..f6177e3 100644
--- a/arch/arm/mach-omap2/clock24xx.h
+++ b/arch/arm/mach-omap2/clock24xx.h
@@ -680,6 +680,8 @@ static struct dpll_data dpll_dd = {
.mult_div1_reg = _CM_REG_OFFSET(PLL_MOD, CM_CLKSEL1),
.mult_mask = OMAP24XX_DPLL_MULT_MASK,
.div1_mask = OMAP24XX_DPLL_DIV_MASK,
+ .control_reg = _CM_REG_OFFSET(PLL_MOD, CM_CLKEN),
+ .enable_mask = OMAP24XX_EN_DPLL_MASK,
.max_multiplier = 1024,
.max_divider = 16,
.rate_tolerance = DEFAULT_DPLL_RATE_TOLERANCE
diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
index 0f493f5..c5efd7e 100644
--- a/arch/arm/mach-omap2/clock34xx.c
+++ b/arch/arm/mach-omap2/clock34xx.c
@@ -512,11 +512,11 @@ static void omap3_clkoutx2_recalc(struct clk *clk)

dd = pclk->dpll_data;

- WARN_ON(!dd->control_reg || !dd->enable_mask);
+ WARN_ON(!dd->enable_mask);

v = __raw_readl(dd->control_reg) & dd->enable_mask;
v >>= __ffs(dd->enable_mask);
- if (v != DPLL_LOCKED)
+ if (v != OMAP3XXX_EN_DPLL_LOCKED)
clk->rate = clk->parent->rate;
else
clk->rate = clk->parent->rate * 2;
diff --git a/arch/arm/mach-omap2/clock34xx.h b/arch/arm/mach-omap2/clock34xx.h
index 5d20075..0c50a2d 100644
--- a/arch/arm/mach-omap2/clock34xx.h
+++ b/arch/arm/mach-omap2/clock34xx.h
@@ -257,16 +257,6 @@ static struct clk sys_clkout1 = {

/* CM CLOCKS */

-static const struct clksel_rate dpll_bypass_rates[] = {
- { .div = 1, .val = 0, .flags = RATE_IN_343X | DEFAULT_RATE },
- { .div = 0 }
-};
-
-static const struct clksel_rate dpll_locked_rates[] = {
- { .div = 1, .val = 1, .flags = RATE_IN_343X | DEFAULT_RATE },
- { .div = 0 }
-};
-
static const struct clksel_rate div16_dpll_rates[] = {
{ .div = 1, .val = 1, .flags = RATE_IN_343X | DEFAULT_RATE },
{ .div = 2, .val = 2, .flags = RATE_IN_343X },
@@ -529,40 +519,22 @@ static struct clk dpll3_m2_ck = {
.recalc = &omap2_clksel_recalc,
};

-static const struct clksel core_ck_clksel[] = {
- { .parent = &sys_ck, .rates = dpll_bypass_rates },
- { .parent = &dpll3_m2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
static struct clk core_ck = {
.name = "core_ck",
- .init = &omap2_init_clksel_parent,
- .clksel_reg = _OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST),
- .clksel_mask = OMAP3430_ST_CORE_CLK_MASK,
- .clksel = core_ck_clksel,
+ .parent = &dpll3_m2_ck,
.flags = CLOCK_IN_OMAP343X | RATE_PROPAGATES |
PARENT_CONTROLS_CLOCK,
.clkdm = { .name = "cm_clkdm" },
- .recalc = &omap2_clksel_recalc,
-};
-
-static const struct clksel dpll3_m2x2_ck_clksel[] = {
- { .parent = &sys_ck, .rates = dpll_bypass_rates },
- { .parent = &dpll3_x2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
+ .recalc = &followparent_recalc,
};

static struct clk dpll3_m2x2_ck = {
.name = "dpll3_m2x2_ck",
- .init = &omap2_init_clksel_parent,
- .clksel_reg = _OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST),
- .clksel_mask = OMAP3430_ST_CORE_CLK_MASK,
- .clksel = dpll3_m2x2_ck_clksel,
+ .parent = &dpll3_x2_ck,
.flags = CLOCK_IN_OMAP343X | RATE_PROPAGATES |
PARENT_CONTROLS_CLOCK,
.clkdm = { .name = "dpll3_clkdm" },
- .recalc = &omap2_clksel_recalc,
+ .recalc = &followparent_recalc,
};

/* The PWRDN bit is apparently only available on 3430ES2 and above */
@@ -596,23 +568,13 @@ static struct clk dpll3_m3x2_ck = {
.recalc = &omap3_clkoutx2_recalc,
};

-static const struct clksel emu_core_alwon_ck_clksel[] = {
- { .parent = &sys_ck, .rates = dpll_bypass_rates },
- { .parent = &dpll3_m3x2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
static struct clk emu_core_alwon_ck = {
.name = "emu_core_alwon_ck",
.parent = &dpll3_m3x2_ck,
- .init = &omap2_init_clksel_parent,
- .clksel_reg = _OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST),
- .clksel_mask = OMAP3430_ST_CORE_CLK_MASK,
- .clksel = emu_core_alwon_ck_clksel,
.flags = CLOCK_IN_OMAP343X | RATE_PROPAGATES |
PARENT_CONTROLS_CLOCK,
.clkdm = { .name = "dpll3_clkdm" },
- .recalc = &omap2_clksel_recalc,
+ .recalc = &followparent_recalc,
};

/* DPLL4 */
@@ -696,12 +658,6 @@ static struct clk dpll4_m2x2_ck = {
.recalc = &omap3_clkoutx2_recalc,
};

-static const struct clksel omap_96m_alwon_fck_clksel[] = {
- { .parent = &sys_ck, .rates = dpll_bypass_rates },
- { .parent = &dpll4_m2x2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
/*
* DPLL4 generates DPLL4_M2X2_CLK which is then routed into the PRM as
* PRM_96M_ALWON_(F)CLK. Two clocks then emerge from the PRM:
@@ -711,14 +667,10 @@ static const struct clksel omap_96m_alwon_fck_clksel[] = {
static struct clk omap_96m_alwon_fck = {
.name = "omap_96m_alwon_fck",
.parent = &dpll4_m2x2_ck,
- .init = &omap2_init_clksel_parent,
- .clksel_reg = _OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST),
- .clksel_mask = OMAP3430_ST_PERIPH_CLK_MASK,
- .clksel = omap_96m_alwon_fck_clksel,
.flags = CLOCK_IN_OMAP343X | RATE_PROPAGATES |
PARENT_CONTROLS_CLOCK,
.clkdm = { .name = "prm_clkdm" },
- .recalc = &omap2_clksel_recalc,
+ .recalc = &followparent_recalc,
};

static struct clk cm_96m_fck = {
@@ -785,25 +737,6 @@ static struct clk dpll4_m3x2_ck = {
.recalc = &omap3_clkoutx2_recalc,
};

-static const struct clksel virt_omap_54m_fck_clksel[] = {
- { .parent = &sys_ck, .rates = dpll_bypass_rates },
- { .parent = &dpll4_m3x2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
-static struct clk virt_omap_54m_fck = {
- .name = "virt_omap_54m_fck",
- .parent = &dpll4_m3x2_ck,
- .init = &omap2_init_clksel_parent,
- .clksel_reg = _OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST),
- .clksel_mask = OMAP3430_ST_PERIPH_CLK_MASK,
- .clksel = virt_omap_54m_fck_clksel,
- .flags = CLOCK_IN_OMAP343X | RATE_PROPAGATES |
- PARENT_CONTROLS_CLOCK,
- .clkdm = { .name = "dpll4_clkdm" },
- .recalc = &omap2_clksel_recalc,
-};
-
static const struct clksel_rate omap_54m_d4m3x2_rates[] = {
{ .div = 1, .val = 0, .flags = RATE_IN_343X | DEFAULT_RATE },
{ .div = 0 }
@@ -815,7 +748,7 @@ static const struct clksel_rate omap_54m_alt_rates[] = {
};

static const struct clksel omap_54m_clksel[] = {
- { .parent = &virt_omap_54m_fck, .rates = omap_54m_d4m3x2_rates },
+ { .parent = &dpll4_m3x2_ck, .rates = omap_54m_d4m3x2_rates },
{ .parent = &sys_altclk, .rates = omap_54m_alt_rates },
{ .parent = NULL }
};
@@ -1013,25 +946,6 @@ static struct clk dpll5_m2_ck = {
.recalc = &omap2_clksel_recalc,
};

-static const struct clksel omap_120m_fck_clksel[] = {
- { .parent = &sys_ck, .rates = dpll_bypass_rates },
- { .parent = &dpll5_m2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
-static struct clk omap_120m_fck = {
- .name = "omap_120m_fck",
- .parent = &dpll5_m2_ck,
- .init = &omap2_init_clksel_parent,
- .clksel_reg = _OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST2),
- .clksel_mask = OMAP3430ES2_ST_PERIPH2_CLK_MASK,
- .clksel = omap_120m_fck_clksel,
- .flags = CLOCK_IN_OMAP3430ES2 | RATE_PROPAGATES |
- PARENT_CONTROLS_CLOCK,
- .clkdm = { .name = "dpll5_clkdm" },
- .recalc = &omap2_clksel_recalc,
-};
-
/* CM EXTERNAL CLOCK OUTPUTS */

static const struct clksel_rate clkout2_src_core_rates[] = {
@@ -1138,29 +1052,13 @@ static struct clk dpll1_fck = {
.recalc = &omap2_clksel_recalc,
};

-/*
- * MPU clksel:
- * If DPLL1 is locked, mpu_ck derives from DPLL1; otherwise, mpu_ck
- * derives from the high-frequency bypass clock originating from DPLL3,
- * called 'dpll1_fck'
- */
-static const struct clksel mpu_clksel[] = {
- { .parent = &dpll1_fck, .rates = dpll_bypass_rates },
- { .parent = &dpll1_x2m2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
static struct clk mpu_ck = {
.name = "mpu_ck",
.parent = &dpll1_x2m2_ck,
- .init = &omap2_init_clksel_parent,
- .clksel_reg = _OMAP34XX_CM_REGADDR(MPU_MOD, OMAP3430_CM_IDLEST_PLL),
- .clksel_mask = OMAP3430_ST_MPU_CLK_MASK,
- .clksel = mpu_clksel,
.flags = CLOCK_IN_OMAP343X | RATE_PROPAGATES |
PARENT_CONTROLS_CLOCK,
.clkdm = { .name = "mpu_clkdm" },
- .recalc = &omap2_clksel_recalc,
+ .recalc = &followparent_recalc,
};

/* arm_fck is divided by two when DPLL1 locked; otherwise, passthrough mpu_ck */
@@ -1216,32 +1114,15 @@ static struct clk dpll2_fck = {
.recalc = &omap2_clksel_recalc,
};

-/*
- * IVA2 clksel:
- * If DPLL2 is locked, iva2_ck derives from DPLL2; otherwise, iva2_ck
- * derives from the high-frequency bypass clock originating from DPLL3,
- * called 'dpll2_fck'
- */
-
-static const struct clksel iva2_clksel[] = {
- { .parent = &dpll2_fck, .rates = dpll_bypass_rates },
- { .parent = &dpll2_m2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
static struct clk iva2_ck = {
.name = "iva2_ck",
.parent = &dpll2_m2_ck,
.init = &omap2_init_clksel_parent,
.enable_reg = _OMAP34XX_CM_REGADDR(OMAP3430_IVA2_MOD, CM_FCLKEN),
.enable_bit = OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_SHIFT,
- .clksel_reg = _OMAP34XX_CM_REGADDR(OMAP3430_IVA2_MOD,
- OMAP3430_CM_IDLEST_PLL),
- .clksel_mask = OMAP3430_ST_IVA2_CLK_MASK,
- .clksel = iva2_clksel,
.flags = CLOCK_IN_OMAP343X | RATE_PROPAGATES,
.clkdm = { .name = "iva2_clkdm" },
- .recalc = &omap2_clksel_recalc,
+ .recalc = &followparent_recalc,
};

/* Common interface clocks */
@@ -1473,7 +1354,7 @@ static struct clk ts_fck = {

static struct clk usbtll_fck = {
.name = "usbtll_fck",
- .parent = &omap_120m_fck,
+ .parent = &dpll5_m2_ck,
.enable_reg = _OMAP34XX_CM_REGADDR(CORE_MOD, OMAP3430ES2_CM_FCLKEN3),
.enable_bit = OMAP3430ES2_EN_USBTLL_SHIFT,
.flags = CLOCK_IN_OMAP3430ES2,
@@ -2207,24 +2088,14 @@ static struct clk des1_ick = {
};

/* DSS */
-static const struct clksel dss1_alwon_fck_clksel[] = {
- { .parent = &sys_ck, .rates = dpll_bypass_rates },
- { .parent = &dpll4_m4x2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
static struct clk dss1_alwon_fck = {
.name = "dss1_alwon_fck",
.parent = &dpll4_m4x2_ck,
- .init = &omap2_init_clksel_parent,
.enable_reg = _OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD, CM_FCLKEN),
.enable_bit = OMAP3430_EN_DSS1_SHIFT,
- .clksel_reg = _OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST),
- .clksel_mask = OMAP3430_ST_PERIPH_CLK_MASK,
- .clksel = dss1_alwon_fck_clksel,
.flags = CLOCK_IN_OMAP343X,
.clkdm = { .name = "dss_clkdm" },
- .recalc = &omap2_clksel_recalc,
+ .recalc = &followparent_recalc,
};

static struct clk dss_tv_fck = {
@@ -2270,24 +2141,14 @@ static struct clk dss_ick = {

/* CAM */

-static const struct clksel cam_mclk_clksel[] = {
- { .parent = &sys_ck, .rates = dpll_bypass_rates },
- { .parent = &dpll4_m5x2_ck, .rates = dpll_locked_rates },
- { .parent = NULL }
-};
-
static struct clk cam_mclk = {
.name = "cam_mclk",
.parent = &dpll4_m5x2_ck,
- .init = &omap2_init_clksel_parent,
- .clksel_reg = _OMAP34XX_CM_REGADDR(PLL_MOD, CM_IDLEST),
- .clksel_mask = OMAP3430_ST_PERIPH_CLK_MASK,
- .clksel = cam_mclk_clksel,
.enable_reg = _OMAP34XX_CM_REGADDR(OMAP3430_CAM_MOD, CM_FCLKEN),
.enable_bit = OMAP3430_EN_CAM_SHIFT,
.flags = CLOCK_IN_OMAP343X,
.clkdm = { .name = "cam_clkdm" },
- .recalc = &omap2_clksel_recalc,
+ .recalc = &followparent_recalc,
};

static struct clk cam_ick = {
@@ -2315,7 +2176,7 @@ static struct clk csi2_96m_fck = {

static struct clk usbhost_120m_fck = {
.name = "usbhost_120m_fck",
- .parent = &omap_120m_fck,
+ .parent = &dpll5_m2_ck,
.enable_reg = _OMAP34XX_CM_REGADDR(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN),
.enable_bit = OMAP3430ES2_EN_USBHOST2_SHIFT,
.flags = CLOCK_IN_OMAP3430ES2,
@@ -2364,7 +2225,7 @@ static const struct clksel_rate usim_120m_rates[] = {

static const struct clksel usim_clksel[] = {
{ .parent = &omap_96m_fck, .rates = usim_96m_rates },
- { .parent = &omap_120m_fck, .rates = usim_120m_rates },
+ { .parent = &dpll5_m2_ck, .rates = usim_120m_rates },
{ .parent = &sys_ck, .rates = div2_rates },
{ .parent = NULL },
};
@@ -3176,7 +3037,6 @@ static struct clk *onchip_34xx_clks[] __initdata = {
&omap_96m_alwon_fck,
&omap_96m_fck,
&cm_96m_fck,
- &virt_omap_54m_fck,
&omap_54m_fck,
&omap_48m_fck,
&omap_12m_fck,
@@ -3193,7 +3053,6 @@ static struct clk *onchip_34xx_clks[] __initdata = {
&emu_per_alwon_ck,
&dpll5_ck,
&dpll5_m2_ck,
- &omap_120m_fck,
&clkout2_src_ck,
&sys_clkout2,
&corex2_fck,
diff --git a/arch/arm/mach-omap2/memory.c b/arch/arm/mach-omap2/memory.c
index b7669c8..db024fd 100644
--- a/arch/arm/mach-omap2/memory.c
+++ b/arch/arm/mach-omap2/memory.c
@@ -29,6 +29,8 @@

#include "prm.h"

+#include "clock.h"
+
#include "memory.h"
#include "sdrc.h"

diff --git a/arch/arm/plat-omap/include/mach/clock.h b/arch/arm/plat-omap/include/mach/clock.h
index 0fb4271..73676ee 100644
--- a/arch/arm/plat-omap/include/mach/clock.h
+++ b/arch/arm/plat-omap/include/mach/clock.h
@@ -41,14 +41,14 @@ struct dpll_data {
u16 max_multiplier;
u8 max_divider;
u32 max_tolerance;
- void __iomem *idlest_reg;
- u32 idlest_mask;
struct clk *bypass_clk;
+ void __iomem *control_reg;
+ u32 enable_mask;
# if defined(CONFIG_ARCH_OMAP3)
+ void __iomem *idlest_reg;
+ u32 idlest_mask;
u32 freqsel_mask;
u8 modes;
- void __iomem *control_reg;
- u32 enable_mask;
u8 auto_recal_bit;
u8 recal_en_bit;
u8 recal_st_bit;
@@ -165,9 +165,4 @@ extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
#define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X)


-/* CM_CLKSEL2_PLL.CORE_CLK_SRC options (24XX) */
-#define CORE_CLK_SRC_32K 0
-#define CORE_CLK_SRC_DPLL 1
-#define CORE_CLK_SRC_DPLL_X2 2
-
#endif



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