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#ifndef __MACH_IMX_CLK_H
#define __MACH_IMX_CLK_H
#include <linux/spinlock.h>
#include <linux/clk-provider.h>
extern spinlock_t imx_ccm_lock;
extern void imx_cscmr1_fixup(u32 *val);
extern struct imx_sema4_mutex *amp_power_mutex;
extern struct imx_shared_mem *shared_mem;
struct clk *imx_clk_pllv1(const char *name, const char *parent,
void __iomem *base);
struct clk *imx_clk_pllv2(const char *name, const char *parent,
void __iomem *base);
enum imx_pllv3_type {
IMX_PLLV3_GENERIC,
IMX_PLLV3_SYS,
IMX_PLLV3_USB,
IMX_PLLV3_AV,
IMX_PLLV3_ENET,
IMX_PLLV3_MLB,
};
#define MAX_SHARED_CLK_NUMBER 100
#define SHARED_MEM_MAGIC_NUMBER 0x12345678
struct imx_shared_clk {
struct clk *self;
struct clk *parent;
void *m4_clk;
void *m4_clk_parent;
u8 ca9_enabled;
u8 cm4_enabled;
};
struct imx_shared_mem {
u32 ca9_valid;
u32 cm4_valid;
struct imx_shared_clk imx_clk[MAX_SHARED_CLK_NUMBER];
};
struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
const char *parent_name, void __iomem *base,
u32 div_mask, bool always_on);
struct clk *clk_register_gate2(struct device *dev, const char *name,
const char *parent_name, unsigned long flags,
void __iomem *reg, u8 bit_idx,
u8 clk_gate_flags, spinlock_t *lock,
unsigned int *share_count);
struct clk * imx_obtain_fixed_clock(
const char *name, unsigned long rate);
static inline struct clk *imx_clk_gate2(const char *name, const char *parent,
void __iomem *reg, u8 shift)
{
return clk_register_gate2(NULL, name, parent,
CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
reg, shift, 0, &imx_ccm_lock, NULL);
}
static inline struct clk *imx_clk_gate2_flags(const char *name, const char *parent,
void __iomem *reg, u8 shift, unsigned long flags)
{
return clk_register_gate2(NULL, name, parent,
flags, reg, shift, 0, &imx_ccm_lock, NULL);
}
static inline struct clk *imx_clk_gate2_shared(const char *name,
const char *parent, void __iomem *reg, u8 shift,
unsigned int *share_count)
{
return clk_register_gate2(NULL, name, parent,
CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
reg, shift, 0, &imx_ccm_lock, share_count);
}
static inline void imx_clk_prepare_enable(struct clk *clk)
{
int ret = clk_prepare_enable(clk);
if (ret)
pr_err("failed to prepare and enable clk %s: %d\n",
__clk_get_name(clk), ret);
}
static inline void imx_clk_set_parent(struct clk *clk, struct clk *parent)
{
int ret = clk_set_parent(clk, parent);
if (ret)
pr_err("failed to set parent of clk %s to %s: %d\n",
__clk_get_name(clk), __clk_get_name(parent), ret);
}
static inline void imx_clk_set_rate(struct clk *clk, unsigned long rate)
{
int ret = clk_set_rate(clk, rate);
if (ret)
pr_err("failed to set rate of clk %s to %ld: %d\n",
__clk_get_name(clk), rate, ret);
}
struct clk *imx_clk_pfd(const char *name, const char *parent_name,
void __iomem *reg, u8 idx);
struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
void __iomem *reg, u8 shift, u8 width,
void __iomem *busy_reg, u8 busy_shift);
struct clk *imx_clk_busy_mux(const char *name, void __iomem *reg, u8 shift,
u8 width, void __iomem *busy_reg, u8 busy_shift,
const char **parent_names, int num_parents);
struct clk *imx_clk_busy_gate(const char *name, const char *parent,
void __iomem *reg, u8 shift);
struct clk *imx_clk_fixup_divider(const char *name, const char *parent,
void __iomem *reg, u8 shift, u8 width,
void (*fixup)(u32 *val));
struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg,
u8 shift, u8 width, const char **parents,
int num_parents, void (*fixup)(u32 *val));
static inline struct clk *imx_clk_fixed(const char *name, int rate)
{
return clk_register_fixed_rate(NULL, name, NULL, CLK_IS_ROOT, rate);
}
static inline struct clk *imx_clk_divider(const char *name, const char *parent,
void __iomem *reg, u8 shift, u8 width)
{
return clk_register_divider(NULL, name, parent,
CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_divider_flags(const char *name,
const char *parent, void __iomem *reg, u8 shift, u8 width,
unsigned long flags)
{
return clk_register_divider(NULL, name, parent, flags,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_gate(const char *name, const char *parent,
void __iomem *reg, u8 shift)
{
return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
shift, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg,
u8 shift, u8 width, const char **parents, int num_parents)
{
return clk_register_mux(NULL, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT | CLK_SET_PARENT_GATE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_mux_bus(const char *name, void __iomem *reg,
u8 shift, u8 width, const char **parents, int num_parents)
{
return clk_register_mux(NULL, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_mux_flags(const char *name,
void __iomem *reg, u8 shift, u8 width, const char **parents,
int num_parents, unsigned long flags)
{
return clk_register_mux(NULL, name, parents, num_parents,
flags | CLK_SET_RATE_NO_REPARENT | CLK_SET_PARENT_GATE,
reg, shift, width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_mux_glitchless(const char *name,
void __iomem *reg, u8 shift, u8 width, const char **parents,
int num_parents)
{
return clk_register_mux(NULL, name, parents, num_parents,
CLK_SET_RATE_NO_REPARENT, reg, shift,
width, 0, &imx_ccm_lock);
}
static inline struct clk *imx_clk_fixed_factor(const char *name,
const char *parent, unsigned int mult, unsigned int div)
{
return clk_register_fixed_factor(NULL, name, parent,
CLK_SET_RATE_PARENT, mult, div);
}
#endif
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