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Diffstat (limited to 'arch/arm/mach-omap2/clock2xxx.c')
-rw-r--r--arch/arm/mach-omap2/clock2xxx.c136
1 files changed, 0 insertions, 136 deletions
diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c
index bef557488fec..419ae80fa1d4 100644
--- a/arch/arm/mach-omap2/clock2xxx.c
+++ b/arch/arm/mach-omap2/clock2xxx.c
@@ -54,8 +54,6 @@
#define APLLS_CLKIN_13MHZ 2
#define APLLS_CLKIN_12MHZ 3
-/* #define DOWN_VARIABLE_DPLL 1 */ /* Experimental */
-
const struct prcm_config *curr_prcm_set;
const struct prcm_config *rate_table;
@@ -94,34 +92,6 @@ const struct clkops clkops_omap2430_i2chs_wait = {
.find_companion = omap2_clk_dflt_find_companion,
};
-/**
- * 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.
- */
-unsigned long omap2xxx_clk_get_core_rate(struct clk *clk)
-{
- long long core_clk;
- u32 v;
-
- core_clk = omap2_get_dpll_rate(clk);
-
- v = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
- v &= OMAP24XX_CORE_CLK_SRC_MASK;
-
- 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)
{
u32 pcc;
@@ -215,112 +185,6 @@ const struct clkops clkops_apll54 = {
.disable = omap2_clk_apll_disable,
};
-/*
- * Uses the current prcm set to tell if a rate is valid.
- * You can go slower, but not faster within a given rate set.
- */
-long omap2_dpllcore_round_rate(unsigned long target_rate)
-{
- u32 high, low, core_clk_src;
-
- core_clk_src = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
- core_clk_src &= OMAP24XX_CORE_CLK_SRC_MASK;
-
- if (core_clk_src == CORE_CLK_SRC_DPLL) { /* DPLL clockout */
- high = curr_prcm_set->dpll_speed * 2;
- low = curr_prcm_set->dpll_speed;
- } else { /* DPLL clockout x 2 */
- high = curr_prcm_set->dpll_speed;
- low = curr_prcm_set->dpll_speed / 2;
- }
-
-#ifdef DOWN_VARIABLE_DPLL
- if (target_rate > high)
- return high;
- else
- return target_rate;
-#else
- if (target_rate > low)
- return high;
- else
- return low;
-#endif
-
-}
-
-unsigned long omap2_dpllcore_recalc(struct clk *clk)
-{
- return omap2xxx_clk_get_core_rate(clk);
-}
-
-int omap2_reprogram_dpllcore(struct clk *clk, unsigned long rate)
-{
- u32 cur_rate, low, mult, div, valid_rate, done_rate;
- u32 bypass = 0;
- struct prcm_config tmpset;
- const struct dpll_data *dd;
-
- cur_rate = omap2xxx_clk_get_core_rate(dclk);
- mult = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
- mult &= OMAP24XX_CORE_CLK_SRC_MASK;
-
- if ((rate == (cur_rate / 2)) && (mult == 2)) {
- omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
- } else if ((rate == (cur_rate * 2)) && (mult == 1)) {
- omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
- } else if (rate != cur_rate) {
- valid_rate = omap2_dpllcore_round_rate(rate);
- if (valid_rate != rate)
- return -EINVAL;
-
- if (mult == 1)
- low = curr_prcm_set->dpll_speed;
- else
- low = curr_prcm_set->dpll_speed / 2;
-
- dd = clk->dpll_data;
- if (!dd)
- return -EINVAL;
-
- tmpset.cm_clksel1_pll = __raw_readl(dd->mult_div1_reg);
- tmpset.cm_clksel1_pll &= ~(dd->mult_mask |
- dd->div1_mask);
- div = ((curr_prcm_set->xtal_speed / 1000000) - 1);
- tmpset.cm_clksel2_pll = cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
- tmpset.cm_clksel2_pll &= ~OMAP24XX_CORE_CLK_SRC_MASK;
- if (rate > low) {
- tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL_X2;
- mult = ((rate / 2) / 1000000);
- done_rate = CORE_CLK_SRC_DPLL_X2;
- } else {
- tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL;
- mult = (rate / 1000000);
- done_rate = CORE_CLK_SRC_DPLL;
- }
- tmpset.cm_clksel1_pll |= (div << __ffs(dd->mult_mask));
- tmpset.cm_clksel1_pll |= (mult << __ffs(dd->div1_mask));
-
- /* Worst case */
- tmpset.base_sdrc_rfr = SDRC_RFR_CTRL_BYPASS;
-
- if (rate == curr_prcm_set->xtal_speed) /* If asking for 1-1 */
- bypass = 1;
-
- /* For omap2xxx_sdrc_init_params() */
- omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
-
- /* Force dll lock mode */
- omap2_set_prcm(tmpset.cm_clksel1_pll, tmpset.base_sdrc_rfr,
- bypass);
-
- /* Errata: ret dll entry state */
- omap2xxx_sdrc_init_params(omap2xxx_sdrc_dll_is_unlocked());
- omap2xxx_sdrc_reprogram(done_rate, 0);
- }
-
- return 0;
-}
-
/**
* omap2_table_mpu_recalc - just return the MPU speed
* @clk: virt_prcm_set struct clk