diff options
Diffstat (limited to 'roms/u-boot/drivers/clk/at91/pmc.h')
-rw-r--r-- | roms/u-boot/drivers/clk/at91/pmc.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/clk/at91/pmc.h b/roms/u-boot/drivers/clk/at91/pmc.h new file mode 100644 index 000000000..f07f535e4 --- /dev/null +++ b/roms/u-boot/drivers/clk/at91/pmc.h @@ -0,0 +1,147 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2016 Atmel Corporation + * Wenyou.Yang <wenyou.yang@atmel.com> + */ + +#ifndef __AT91_PMC_H__ +#define __AT91_PMC_H__ + +#include <linux/bitops.h> +#include <linux/io.h> + +/* Keep a range of 256 available clocks for every clock type. */ +#define AT91_TO_CLK_ID(_t, _i) (((_t) << 8) | ((_i) & 0xff)) +#define AT91_CLK_ID_TO_DID(_i) ((_i) & 0xff) + +struct clk_range { + unsigned long min; + unsigned long max; +}; + +struct clk_master_layout { + u32 offset; + u32 mask; + u8 pres_shift; +}; + +extern const struct clk_master_layout at91rm9200_master_layout; +extern const struct clk_master_layout at91sam9x5_master_layout; + +struct clk_master_characteristics { + struct clk_range output; + u32 divisors[5]; + u8 have_div3_pres; +}; + +struct clk_pll_characteristics { + struct clk_range input; + int num_output; + const struct clk_range *output; + u16 *icpll; + u8 *out; + u8 upll : 1; +}; + +struct clk_pll_layout { + u32 pllr_mask; + u32 mul_mask; + u32 frac_mask; + u32 div_mask; + u32 endiv_mask; + u8 mul_shift; + u8 frac_shift; + u8 div_shift; + u8 endiv_shift; +}; + +struct clk_programmable_layout { + u8 pres_mask; + u8 pres_shift; + u8 css_mask; + u8 have_slck_mck; + u8 is_pres_direct; +}; + +struct clk_pcr_layout { + u32 offset; + u32 cmd; + u32 div_mask; + u32 gckcss_mask; + u32 pid_mask; +}; + +extern const struct clk_programmable_layout at91rm9200_programmable_layout; +extern const struct clk_programmable_layout at91sam9g45_programmable_layout; +extern const struct clk_programmable_layout at91sam9x5_programmable_layout; + +extern const struct clk_ops at91_clk_ops; + +struct clk *at91_clk_main_rc(void __iomem *reg, const char *name, + const char *parent_name); +struct clk *at91_clk_main_osc(void __iomem *reg, const char *name, + const char *parent_name, bool bypass); +struct clk *at91_clk_rm9200_main(void __iomem *reg, const char *name, + const char *parent_name); +struct clk *at91_clk_sam9x5_main(void __iomem *reg, const char *name, + const char * const *parent_names, int num_parents, + const u32 *mux_table, int type); +struct clk * +sam9x60_clk_register_div_pll(void __iomem *base, const char *name, + const char *parent_name, u8 id, + const struct clk_pll_characteristics *characteristics, + const struct clk_pll_layout *layout, bool critical); +struct clk * +sam9x60_clk_register_frac_pll(void __iomem *base, const char *name, + const char *parent_name, u8 id, + const struct clk_pll_characteristics *characteristics, + const struct clk_pll_layout *layout, bool critical); +struct clk * +at91_clk_register_master(void __iomem *base, const char *name, + const char * const *parent_names, int num_parents, + const struct clk_master_layout *layout, + const struct clk_master_characteristics *characteristics, + const u32 *mux_table); +struct clk * +at91_clk_sama7g5_register_master(void __iomem *base, const char *name, + const char * const *parent_names, int num_parents, + const u32 *mux_table, const u32 *clk_mux_table, + bool critical, u8 id); +struct clk * +at91_clk_register_utmi(void __iomem *base, struct udevice *dev, + const char *name, const char *parent_name); +struct clk * +at91_clk_sama7g5_register_utmi(void __iomem *base, const char *name, + const char *parent_name); +struct clk * +at91_clk_register_programmable(void __iomem *base, const char *name, + const char * const *parent_names, u8 num_parents, u8 id, + const struct clk_programmable_layout *layout, + const u32 *clk_mux_table, const u32 *mux_table); +struct clk * +at91_clk_register_system(void __iomem *base, const char *name, + const char *parent_name, u8 id); +struct clk * +at91_clk_register_peripheral(void __iomem *base, const char *name, + const char *parent_name, u32 id); +struct clk * +at91_clk_register_sam9x5_peripheral(void __iomem *base, + const struct clk_pcr_layout *layout, + const char *name, const char *parent_name, + u32 id, const struct clk_range *range); +struct clk * +at91_clk_register_generic(void __iomem *base, + const struct clk_pcr_layout *layout, const char *name, + const char * const *parent_names, + const u32 *clk_mux_table, const u32 *mux_table, + u8 num_parents, u8 id, const struct clk_range *range); + +int at91_clk_mux_val_to_index(const u32 *table, u32 num_parents, u32 val); +int at91_clk_mux_index_to_val(const u32 *table, u32 num_parents, u32 index); + +void pmc_read(void __iomem *base, unsigned int off, unsigned int *val); +void pmc_write(void __iomem *base, unsigned int off, unsigned int val); +void pmc_update_bits(void __iomem *base, unsigned int off, unsigned int mask, + unsigned int bits); + +#endif |