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// SPDX-License-Identifier: BSD-3-Clause
/* Copyright (c) 2019, Linaro Ltd. */
#ifndef __DEBUGCC_H__
#define __DEBUGCC_H__
#define BIT(x) (1 << (x))
#define GENMASK(h, l) (((~0UL) << (l)) & (~0UL >> (sizeof(long) * 8 - 1 - (h))))
#define CORE_CC_BLOCK "core"
struct measure_clk;
struct debug_mux {
unsigned long phys;
void *base;
const char *block_name;
size_t size;
struct debug_mux *parent;
unsigned long parent_mux_val;
unsigned int enable_reg;
unsigned int enable_mask;
unsigned int mux_reg;
unsigned int mux_mask;
unsigned int mux_shift;
unsigned int div_reg;
unsigned int div_shift;
unsigned int div_mask;
unsigned int div_val;
unsigned long (*measure)(const struct measure_clk *clk,
const struct debug_mux *mux);
};
struct gcc_mux {
struct debug_mux mux;
unsigned int xo_rate;
unsigned int xo_div4_reg;
unsigned int xo_div4_val;
unsigned int debug_ctl_reg;
unsigned int debug_status_reg;
};
struct measure_clk {
char *name;
struct debug_mux *clk_mux;
unsigned long mux;
unsigned int fixed_div;
};
struct debugcc_platform {
const char *name;
const struct measure_clk *clocks;
int (*premap)(int devmem);
};
#define container_of(ptr, type, member) \
((type *) ((char *)(ptr) - offsetof(type, member)))
static inline uint32_t readl(void *ptr)
{
return *((volatile uint32_t*)ptr);
}
static inline void writel(uint32_t val, void *ptr)
{
*((volatile uint32_t*)ptr) = val;
}
int mmap_mux(int devmem, struct debug_mux *mux);
void mux_enable(struct debug_mux *mux);
void mux_disable(struct debug_mux *mux);
unsigned long measure_gcc(const struct measure_clk *clk,
const struct debug_mux *mux);
unsigned long measure_leaf(const struct measure_clk *clk,
const struct debug_mux *mux);
unsigned long measure_mccc(const struct measure_clk *clk,
const struct debug_mux *mux);
extern const struct debugcc_platform *platforms[];
#endif
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