diff options
Diffstat (limited to 'drivers/clk/bcm/clk-kona.h')
| -rw-r--r-- | drivers/clk/bcm/clk-kona.h | 84 |
1 files changed, 44 insertions, 40 deletions
diff --git a/drivers/clk/bcm/clk-kona.h b/drivers/clk/bcm/clk-kona.h index 108c2647ca28..05d74779a564 100644 --- a/drivers/clk/bcm/clk-kona.h +++ b/drivers/clk/bcm/clk-kona.h @@ -71,35 +71,6 @@ enum bcm_clk_type { }; /* - * Each CCU defines a mapped area of memory containing registers - * used to manage clocks implemented by the CCU. Access to memory - * within the CCU's space is serialized by a spinlock. Before any - * (other) address can be written, a special access "password" value - * must be written to its WR_ACCESS register (located at the base - * address of the range). We keep track of the name of each CCU as - * it is set up, and maintain them in a list. - */ -struct ccu_data { - void __iomem *base; /* base of mapped address space */ - spinlock_t lock; /* serialization lock */ - bool write_enabled; /* write access is currently enabled */ - struct list_head links; /* for ccu_list */ - struct device_node *node; - struct clk_onecell_data clk_data; - const char *name; - u32 range; /* byte range of address space */ -}; - -/* Initialization for common fields in a Kona ccu_data structure */ -#define KONA_CCU_COMMON(_prefix, _name, _ucase_name) \ - .name = #_name "_ccu", \ - .lock = __SPIN_LOCK_UNLOCKED(_name ## _ccu_data.lock), \ - .links = LIST_HEAD_INIT(_name ## _ccu_data.links), \ - .clk_data = { \ - .clk_num = _prefix ## _ ## _ucase_name ## _CCU_CLOCK_COUNT, \ - } - -/* * Gating control and status is managed by a 32-bit gate register. * * There are several types of gating available: @@ -393,17 +364,52 @@ struct kona_clk { #define to_kona_clk(_hw) \ container_of(_hw, struct kona_clk, hw) -/* Exported globals */ +/* Initialization macro for an entry in a CCU's kona_clks[] array. */ +#define KONA_CLK(_ccu_name, _clk_name, _type) \ + { \ + .init_data = { \ + .name = #_clk_name, \ + .ops = &kona_ ## _type ## _clk_ops, \ + }, \ + .ccu = &_ccu_name ## _ccu_data, \ + .type = bcm_clk_ ## _type, \ + .u.data = &_clk_name ## _data, \ + } +#define LAST_KONA_CLK { .type = bcm_clk_none } -extern struct clk_ops kona_peri_clk_ops; +/* + * Each CCU defines a mapped area of memory containing registers + * used to manage clocks implemented by the CCU. Access to memory + * within the CCU's space is serialized by a spinlock. Before any + * (other) address can be written, a special access "password" value + * must be written to its WR_ACCESS register (located at the base + * address of the range). We keep track of the name of each CCU as + * it is set up, and maintain them in a list. + */ +struct ccu_data { + void __iomem *base; /* base of mapped address space */ + spinlock_t lock; /* serialization lock */ + bool write_enabled; /* write access is currently enabled */ + struct list_head links; /* for ccu_list */ + struct device_node *node; + struct clk_onecell_data clk_data; + const char *name; + u32 range; /* byte range of address space */ + struct kona_clk kona_clks[]; /* must be last */ +}; -/* Help functions */ +/* Initialization for common fields in a Kona ccu_data structure */ +#define KONA_CCU_COMMON(_prefix, _name, _ccuname) \ + .name = #_name "_ccu", \ + .lock = __SPIN_LOCK_UNLOCKED(_name ## _ccu_data.lock), \ + .links = LIST_HEAD_INIT(_name ## _ccu_data.links), \ + .clk_data = { \ + .clk_num = _prefix ## _ ## _ccuname ## _CCU_CLOCK_COUNT, \ + } -#define KONA_CLK_SETUP(_ccu, _type, _name) \ - kona_clk_setup((_ccu), #_name, bcm_clk_## _type, &_name ## _data) +/* Exported globals */ -#define PERI_CLK_SETUP(_ccu, _id, _name) \ - (_ccu)->clk_data.clks[_id] = KONA_CLK_SETUP((_ccu), peri, _name) +extern struct clk_ops kona_peri_clk_ops; /* Externally visible functions */ @@ -412,11 +418,9 @@ extern u64 scaled_div_max(struct bcm_clk_div *div); extern u64 scaled_div_build(struct bcm_clk_div *div, u32 div_value, u32 billionths); -extern struct clk *kona_clk_setup(struct ccu_data *ccu, const char *name, - enum bcm_clk_type type, void *data); +extern struct clk *kona_clk_setup(struct kona_clk *bcm_clk); extern void __init kona_dt_ccu_setup(struct ccu_data *ccu, - struct device_node *node, - int (*ccu_clks_setup)(struct ccu_data *)); + struct device_node *node); extern bool __init kona_ccu_init(struct ccu_data *ccu); #endif /* _CLK_KONA_H */ |
