diff options
Diffstat (limited to 'drivers/clk/imx/clk.h')
| -rw-r--r-- | drivers/clk/imx/clk.h | 98 |
1 files changed, 94 insertions, 4 deletions
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h index 6fe64ff8ffa1..b940f68c978c 100644 --- a/drivers/clk/imx/clk.h +++ b/drivers/clk/imx/clk.h @@ -4,16 +4,20 @@ #include <linux/spinlock.h> #include <linux/clk-provider.h> +#include <soc/imx/src.h> extern spinlock_t imx_ccm_lock; void imx_check_clocks(struct clk *clks[], unsigned int count); void imx_check_clk_hws(struct clk_hw *clks[], unsigned int count); -void imx_register_uart_clocks(struct clk ** const clks[]); +void imx_register_uart_clocks(void); void imx_mmdc_mask_handshake(void __iomem *ccm_base, unsigned int chn); void imx_unregister_clocks(struct clk *clks[], unsigned int count); extern void imx_cscmr1_fixup(u32 *val); +extern struct imx_sema4_mutex *amp_power_mutex; +extern struct imx_shared_mem *shared_mem; +extern bool uart_from_osc; enum imx_pllv1_type { IMX_PLLV1_IMX1, @@ -94,8 +98,9 @@ struct imx_pll14xx_clk { #define imx_clk_mux(name, reg, shift, width, parents, num_parents) \ to_clk(imx_clk_hw_mux(name, reg, shift, width, parents, num_parents)) -struct clk *imx_clk_pll14xx(const char *name, const char *parent_name, - void __iomem *base, const struct imx_pll14xx_clk *pll_clk); +struct clk *imx_dev_clk_pll14xx(struct device *dev, const char *name, + const char *parent_name, void __iomem *base, + const struct imx_pll14xx_clk *pll_clk); struct clk *imx_clk_pllv1(enum imx_pllv1_type type, const char *name, const char *parent, void __iomem *base); @@ -126,6 +131,25 @@ enum imx_pllv3_type { IMX_PLLV3_AV_IMX7, }; +#define MAX_SHARED_CLK_NUMBER 100 +#define SHARED_MEM_MAGIC_NUMBER 0x12345678 +#define MCC_POWER_SHMEM_NUMBER (6) + +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_hw *imx_clk_hw_pllv3(enum imx_pllv3_type type, const char *name, const char *parent_name, void __iomem *base, u32 div_mask); @@ -181,6 +205,13 @@ struct clk_hw *imx_clk_hw_busy_mux(const char *name, void __iomem *reg, u8 shift u8 width, void __iomem *busy_reg, u8 busy_shift, const char * const *parent_names, int num_parents); +int imx_update_shared_mem(struct clk_hw *hw, bool enable); + +static inline int clk_on_imx6sx(void) +{ + return of_machine_is_compatible("fsl,imx6sx"); +} + struct clk_hw *imx7ulp_clk_composite(const char *name, const char * const *parent_names, int num_parents, bool mux_present, @@ -285,6 +316,25 @@ static inline struct clk *imx_clk_gate(const char *name, const char *parent, shift, 0, &imx_ccm_lock); } +static inline struct clk *imx_dev_clk_gate(struct device *dev, + const char *name, const char *parent, + void __iomem *reg, u8 shift) +{ + return clk_register_gate(dev, name, parent, CLK_SET_RATE_PARENT, reg, + shift, 0, &imx_ccm_lock); +} + +struct clk *imx_dev_clk_gate_shared(struct device *dev, const char *name, + const char *parent, void __iomem *reg, + u8 shift, unsigned int *share_count); + +static inline struct clk *imx_clk_gate_shared(const char *name, + const char *parent, void __iomem *reg, u8 shift, + unsigned int *share_count) +{ + return imx_dev_clk_gate_shared(NULL, name, parent, reg, shift, share_count); +} + static inline struct clk_hw *imx_clk_hw_gate_flags(const char *name, const char *parent, void __iomem *reg, u8 shift, unsigned long flags) { @@ -354,7 +404,17 @@ static inline struct clk *imx_clk_gate2_cgr(const char *name, static inline struct clk_hw *imx_clk_hw_gate3(const char *name, const char *parent, void __iomem *reg, u8 shift) { - return clk_hw_register_gate(NULL, name, parent, + /* + * per design team's suggestion, clk root is NOT consuming + * much power, and clk root enable/disable does NOT have domain + * control, so they suggest to leave clk root always on when + * M4 is enabled. + */ + if (imx_src_is_m4_enabled()) + return clk_hw_register_fixed_factor(NULL, name, parent, + CLK_SET_RATE_PARENT, 1, 1); + else + return clk_hw_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE, reg, shift, 0, &imx_ccm_lock); } @@ -394,6 +454,15 @@ static inline struct clk_hw *imx_clk_hw_mux(const char *name, void __iomem *reg, width, 0, &imx_ccm_lock); } +static inline struct clk *imx_dev_clk_mux(struct device *dev, const char *name, + void __iomem *reg, u8 shift, u8 width, + const char * const *parents, int num_parents) +{ + return clk_register_mux(dev, 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_mux2(const char *name, void __iomem *reg, u8 shift, u8 width, const char * const *parents, int num_parents) @@ -424,6 +493,16 @@ static inline struct clk *imx_clk_mux_flags(const char *name, &imx_ccm_lock); } +static inline struct clk *imx_dev_clk_mux_flags(struct device *dev, + const char *name, void __iomem *reg, u8 shift, + u8 width, const char * const *parents, int num_parents, + unsigned long flags) +{ + return clk_register_mux(dev, 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_mux2_flags(const char *name, void __iomem *reg, u8 shift, u8 width, const char * const *parents, @@ -446,6 +525,14 @@ static inline struct clk_hw *imx_clk_hw_mux_flags(const char *name, reg, shift, width, 0, &imx_ccm_lock); } +static inline struct clk *imx_clk_pll14xx(const char *name, + const char *parent_name, + void __iomem *base, + const struct imx_pll14xx_clk *pll_clk) +{ + return imx_dev_clk_pll14xx(NULL, name, parent_name, base, pll_clk); +} + struct clk_hw *imx_clk_hw_cpu(const char *name, const char *parent_name, struct clk *div, struct clk *mux, struct clk *pll, struct clk *step); @@ -470,4 +557,7 @@ struct clk_hw *imx_clk_divider_gate(const char *name, const char *parent_name, unsigned long flags, void __iomem *reg, u8 shift, u8 width, u8 clk_divider_flags, const struct clk_div_table *table, spinlock_t *lock); + +void clk_set_delta_k(struct clk_hw *hw, short int delta_k); +void clk_get_pll_setting(struct clk_hw *hw, u32 *pll_div_ctrl0, u32 *pll_div_ctrl1); #endif |