initial_commit

1 files changed, 161 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
new file mode 100644
index 00000000..e10ff2b5
--- /dev/null
+++ b/arch/arm/mach-omap2/clock.h
@@ -0,0 +1,161 @@
+/*
+ *  linux/arch/arm/mach-omap2/clock.h
+ *
+ *  Copyright (C) 2005-2009 Texas Instruments, Inc.
+ *  Copyright (C) 2004-2011 Nokia Corporation
+ *
+ *  Contacts:
+ *  Richard Woodruff <r-woodruff2@ti.com>
+ *  Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK_H
+#define __ARCH_ARM_MACH_OMAP2_CLOCK_H
+
+#include <plat/clock.h>
+
+/* 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
+
+/* OMAP4xxx CM_CLKMODE_DPLL*.EN_*_DPLL bits - for omap2_get_dpll_rate() */
+#define OMAP4XXX_EN_DPLL_MNBYPASS		0x4
+#define OMAP4XXX_EN_DPLL_LPBYPASS		0x5
+#define OMAP4XXX_EN_DPLL_FRBYPASS		0x6
+#define OMAP4XXX_EN_DPLL_LOCKED			0x7
+
+/* CM_CLKEN_PLL*.EN* bit values - not all are available for every DPLL */
+#define DPLL_LOW_POWER_STOP	0x1
+#define DPLL_LOW_POWER_BYPASS	0x5
+#define DPLL_LOCKED		0x7
+
+/* DPLL Type and DCO Selection Flags */
+#define DPLL_J_TYPE		0x1
+
+int omap2_clk_enable(struct clk *clk);
+void omap2_clk_disable(struct clk *clk);
+long omap2_clk_round_rate(struct clk *clk, unsigned long rate);
+int omap2_clk_set_rate(struct clk *clk, unsigned long rate);
+int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent);
+long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate);
+unsigned long omap3_dpll_recalc(struct clk *clk);
+unsigned long omap3_clkoutx2_recalc(struct clk *clk);
+void omap3_dpll_allow_idle(struct clk *clk);
+void omap3_dpll_deny_idle(struct clk *clk);
+u32 omap3_dpll_autoidle_read(struct clk *clk);
+int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate);
+int omap3_noncore_dpll_enable(struct clk *clk);
+void omap3_noncore_dpll_disable(struct clk *clk);
+int omap4_dpllmx_gatectrl_read(struct clk *clk);
+void omap4_dpllmx_allow_gatectrl(struct clk *clk);
+void omap4_dpllmx_deny_gatectrl(struct clk *clk);
+
+#ifdef CONFIG_OMAP_RESET_CLOCKS
+void omap2_clk_disable_unused(struct clk *clk);
+#else
+#define omap2_clk_disable_unused	NULL
+#endif
+
+void omap2_init_clk_clkdm(struct clk *clk);
+
+/* clkt_clksel.c public functions */
+u32 omap2_clksel_round_rate_div(struct clk *clk, unsigned long target_rate,
+				u32 *new_div);
+void omap2_init_clksel_parent(struct clk *clk);
+unsigned long omap2_clksel_recalc(struct clk *clk);
+long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate);
+int omap2_clksel_set_rate(struct clk *clk, unsigned long rate);
+int omap2_clksel_set_parent(struct clk *clk, struct clk *new_parent);
+
+/* clkt_iclk.c public functions */
+extern void omap2_clkt_iclk_allow_idle(struct clk *clk);
+extern void omap2_clkt_iclk_deny_idle(struct clk *clk);
+
+u32 omap2_get_dpll_rate(struct clk *clk);
+void omap2_init_dpll_parent(struct clk *clk);
+
+int omap2_wait_clock_ready(void __iomem *reg, u32 cval, const char *name);
+
+
+#ifdef CONFIG_ARCH_OMAP2
+void omap2xxx_clk_prepare_for_reboot(void);
+#else
+static inline void omap2xxx_clk_prepare_for_reboot(void)
+{
+}
+#endif
+
+#ifdef CONFIG_ARCH_OMAP3
+void omap3_clk_prepare_for_reboot(void);
+#else
+static inline void omap3_clk_prepare_for_reboot(void)
+{
+}
+#endif
+
+#ifdef CONFIG_ARCH_OMAP4
+void omap4_clk_prepare_for_reboot(void);
+#else
+static inline void omap4_clk_prepare_for_reboot(void)
+{
+}
+#endif
+
+int omap2_dflt_clk_enable(struct clk *clk);
+void omap2_dflt_clk_disable(struct clk *clk);
+void omap2_clk_dflt_find_companion(struct clk *clk, void __iomem **other_reg,
+				   u8 *other_bit);
+void omap2_clk_dflt_find_idlest(struct clk *clk, void __iomem **idlest_reg,
+				u8 *idlest_bit, u8 *idlest_val);
+int omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name);
+void omap2_clk_print_new_rates(const char *hfclkin_ck_name,
+			       const char *core_ck_name,
+			       const char *mpu_ck_name);
+
+extern u8 cpu_mask;
+
+extern const struct clkops clkops_omap2_dflt_wait;
+extern const struct clkops clkops_dummy;
+extern const struct clkops clkops_omap2_dflt;
+
+extern struct clk_functions omap2_clk_functions;
+extern struct clk *vclk, *sclk;
+
+extern const struct clksel_rate gpt_32k_rates[];
+extern const struct clksel_rate gpt_sys_rates[];
+extern const struct clksel_rate gfx_l3_rates[];
+extern const struct clksel_rate dsp_ick_rates[];
+
+#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_CPU_FREQ)
+extern void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
+extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
+#else
+#define omap2_clk_init_cpufreq_table	0
+#define omap2_clk_exit_cpufreq_table	0
+#endif
+
+extern const struct clkops clkops_omap2_iclk_dflt_wait;
+extern const struct clkops clkops_omap2_iclk_dflt;
+extern const struct clkops clkops_omap2_iclk_idle_only;
+extern const struct clkops clkops_omap2_mdmclk_dflt_wait;
+extern const struct clkops clkops_omap2xxx_dpll_ops;
+extern const struct clkops clkops_omap3_noncore_dpll_ops;
+extern const struct clkops clkops_omap3_core_dpll_ops;
+extern const struct clkops clkops_omap4_dpllmx_ops;
+
+#endif