diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/clk/imx/clk.h | 463 |
1 files changed, 463 insertions, 0 deletions
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h new file mode 100644 index 000000000..fb5913139 --- /dev/null +++ b/drivers/clk/imx/clk.h @@ -0,0 +1,463 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __MACH_IMX_CLK_H +#define __MACH_IMX_CLK_H + +#include <linux/bits.h> +#include <linux/spinlock.h> +#include <linux/clk-provider.h> + +extern spinlock_t imx_ccm_lock; +extern bool mcore_booted; + +void imx_check_clocks(struct clk *clks[], unsigned int count); +void imx_check_clk_hws(struct clk_hw *clks[], unsigned int count); +#ifndef MODULE +void imx_register_uart_clocks(unsigned int clk_count); +#else +static inline void imx_register_uart_clocks(unsigned int clk_count) +{ +} +#endif +void imx_mmdc_mask_handshake(void __iomem *ccm_base, unsigned int chn); +void imx_unregister_clocks(struct clk *clks[], unsigned int count); +void imx_unregister_hw_clocks(struct clk_hw *hws[], unsigned int count); + +extern void imx_cscmr1_fixup(u32 *val); + +enum imx_pllv1_type { + IMX_PLLV1_IMX1, + IMX_PLLV1_IMX21, + IMX_PLLV1_IMX25, + IMX_PLLV1_IMX27, + IMX_PLLV1_IMX31, + IMX_PLLV1_IMX35, +}; + +enum imx_sscg_pll_type { + SCCG_PLL1, + SCCG_PLL2, +}; + +enum imx_pll14xx_type { + PLL_1416X, + PLL_1443X, +}; + +enum imx_pllv4_type { + IMX_PLLV4_IMX7ULP, + IMX_PLLV4_IMX8ULP, + IMX_PLLV4_IMX8ULP_1GHZ, +}; + +enum imx_pfdv2_type { + IMX_PFDV2_IMX7ULP, + IMX_PFDV2_IMX8ULP, +}; + +/* NOTE: Rate table should be kept sorted in descending order. */ +struct imx_pll14xx_rate_table { + unsigned int rate; + unsigned int pdiv; + unsigned int mdiv; + unsigned int sdiv; + unsigned int kdiv; +}; + +struct imx_pll14xx_clk { + enum imx_pll14xx_type type; + const struct imx_pll14xx_rate_table *rate_table; + int rate_count; + int flags; +}; + +extern struct imx_pll14xx_clk imx_1416x_pll; +extern struct imx_pll14xx_clk imx_1443x_pll; +extern struct imx_pll14xx_clk imx_1443x_dram_pll; + +/* NOTE: Rate table should be kept sorted in descending order. */ +struct imx_fracn_gppll_rate_table { + unsigned int rate; + unsigned int mfi; + unsigned int mfn; + unsigned int mfd; + unsigned int rdiv; + unsigned int odiv; +}; + +struct imx_fracn_gppll_clk { + const struct imx_fracn_gppll_rate_table *rate_table; + int rate_count; + int flags; +}; + +struct clk_hw *imx_clk_fracn_gppll(const char *name, const char *parent_name, void __iomem *base, + const struct imx_fracn_gppll_clk *pll_clk); + +extern struct imx_fracn_gppll_clk imx_fracn_gppll; + +#define imx_clk_cpu(name, parent_name, div, mux, pll, step) \ + to_clk(imx_clk_hw_cpu(name, parent_name, div, mux, pll, step)) + +#define clk_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \ + cgr_val, cgr_mask, clk_gate_flags, lock, share_count) \ + to_clk(clk_hw_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \ + cgr_val, cgr_mask, clk_gate_flags, lock, share_count)) + +#define imx_clk_pllv3(type, name, parent_name, base, div_mask) \ + to_clk(imx_clk_hw_pllv3(type, name, parent_name, base, div_mask)) + +#define imx_clk_pfd(name, parent_name, reg, idx) \ + to_clk(imx_clk_hw_pfd(name, parent_name, reg, idx)) + +#define imx_clk_gate_exclusive(name, parent, reg, shift, exclusive_mask) \ + to_clk(imx_clk_hw_gate_exclusive(name, parent, reg, shift, exclusive_mask)) + +#define imx_clk_fixed(name, rate) \ + to_clk(imx_clk_hw_fixed(name, rate)) + +#define imx_clk_fixed_factor(name, parent, mult, div) \ + to_clk(imx_clk_hw_fixed_factor(name, parent, mult, div)) + +#define imx_clk_divider(name, parent, reg, shift, width) \ + to_clk(imx_clk_hw_divider(name, parent, reg, shift, width)) + +#define imx_clk_divider_flags(name, parent, reg, shift, width, flags) \ + to_clk(imx_clk_hw_divider_flags(name, parent, reg, shift, width, flags)) + +#define imx_clk_gate(name, parent, reg, shift) \ + to_clk(imx_clk_hw_gate(name, parent, reg, shift)) + +#define imx_clk_gate_dis(name, parent, reg, shift) \ + to_clk(imx_clk_hw_gate_dis(name, parent, reg, shift)) + +#define imx_clk_gate2(name, parent, reg, shift) \ + to_clk(imx_clk_hw_gate2(name, parent, reg, shift)) + +#define imx_clk_gate2_cgr(name, parent, reg, shift, cgr_val) \ + to_clk(__imx_clk_hw_gate2(name, parent, reg, shift, cgr_val, 0, NULL)) + +#define imx_clk_gate2_flags(name, parent, reg, shift, flags) \ + to_clk(imx_clk_hw_gate2_flags(name, parent, reg, shift, flags)) + +#define imx_clk_mux(name, reg, shift, width, parents, num_parents) \ + to_clk(imx_clk_hw_mux(name, reg, shift, width, parents, num_parents)) + +#define imx_clk_mux_flags(name, reg, shift, width, parents, num_parents, flags) \ + to_clk(imx_clk_hw_mux_flags(name, reg, shift, width, parents, num_parents, flags)) + +#define imx_clk_mux2_flags(name, reg, shift, width, parents, num_parents, flags) \ + to_clk(imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, flags)) + +#define imx_clk_pllv1(type, name, parent, base) \ + to_clk(imx_clk_hw_pllv1(type, name, parent, base)) + +#define imx_clk_pllv2(name, parent, base) \ + to_clk(imx_clk_hw_pllv2(name, parent, base)) + +#define imx_clk_mux_flags(name, reg, shift, width, parents, num_parents, flags) \ + to_clk(imx_clk_hw_mux_flags(name, reg, shift, width, parents, num_parents, flags)) + +#define imx_clk_hw_gate(name, parent, reg, shift) \ + imx_clk_hw_gate_flags(name, parent, reg, shift, 0) + +#define imx_clk_hw_gate2(name, parent, reg, shift) \ + imx_clk_hw_gate2_flags(name, parent, reg, shift, 0) + +#define imx_clk_hw_gate_dis(name, parent, reg, shift) \ + imx_clk_hw_gate_dis_flags(name, parent, reg, shift, 0) + +#define imx_clk_hw_gate_dis_flags(name, parent, reg, shift, flags) \ + __imx_clk_hw_gate(name, parent, reg, shift, flags, CLK_GATE_SET_TO_DISABLE) + +#define imx_clk_hw_gate_flags(name, parent, reg, shift, flags) \ + __imx_clk_hw_gate(name, parent, reg, shift, flags, 0) + +#define imx_clk_hw_gate2_flags(name, parent, reg, shift, flags) \ + __imx_clk_hw_gate2(name, parent, reg, shift, 0x3, flags, NULL) + +#define imx_clk_hw_gate2_shared(name, parent, reg, shift, shared_count) \ + __imx_clk_hw_gate2(name, parent, reg, shift, 0x3, 0, shared_count) + +#define imx_clk_hw_gate2_shared2(name, parent, reg, shift, shared_count) \ + __imx_clk_hw_gate2(name, parent, reg, shift, 0x3, CLK_OPS_PARENT_ENABLE, shared_count) + +#define imx_clk_hw_gate3(name, parent, reg, shift) \ + imx_clk_hw_gate3_flags(name, parent, reg, shift, 0) + +#define imx_clk_hw_gate3_flags(name, parent, reg, shift, flags) \ + __imx_clk_hw_gate(name, parent, reg, shift, flags | CLK_OPS_PARENT_ENABLE, 0) + +#define imx_clk_hw_gate4(name, parent, reg, shift) \ + imx_clk_hw_gate4_flags(name, parent, reg, shift, 0) + +#define imx_clk_hw_gate4_flags(name, parent, reg, shift, flags) \ + imx_clk_hw_gate2_flags(name, parent, reg, shift, flags | CLK_OPS_PARENT_ENABLE) + +#define imx_clk_hw_mux2(name, reg, shift, width, parents, num_parents) \ + imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, 0) + +#define imx_clk_hw_mux(name, reg, shift, width, parents, num_parents) \ + __imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, 0, 0) + +#define imx_clk_hw_mux_flags(name, reg, shift, width, parents, num_parents, flags) \ + __imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, flags, 0) + +#define imx_clk_hw_mux_ldb(name, reg, shift, width, parents, num_parents) \ + __imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, CLK_SET_RATE_PARENT, CLK_MUX_READ_ONLY) + +#define imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, flags) \ + __imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, flags | CLK_OPS_PARENT_ENABLE, 0) + +#define imx_clk_hw_divider(name, parent, reg, shift, width) \ + __imx_clk_hw_divider(name, parent, reg, shift, width, CLK_SET_RATE_PARENT) + +#define imx_clk_hw_divider2(name, parent, reg, shift, width) \ + __imx_clk_hw_divider(name, parent, reg, shift, width, \ + CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE) + +#define imx_clk_hw_divider_flags(name, parent, reg, shift, width, flags) \ + __imx_clk_hw_divider(name, parent, reg, shift, width, flags) + +#define imx_clk_hw_pll14xx(name, parent_name, base, pll_clk) \ + imx_dev_clk_hw_pll14xx(NULL, name, parent_name, base, pll_clk) + +struct clk_hw *imx_dev_clk_hw_pll14xx(struct device *dev, const char *name, + const char *parent_name, void __iomem *base, + const struct imx_pll14xx_clk *pll_clk); + +struct clk_hw *imx_clk_hw_pllv1(enum imx_pllv1_type type, const char *name, + const char *parent, void __iomem *base); + +struct clk_hw *imx_clk_hw_pllv2(const char *name, const char *parent, + void __iomem *base); + +struct clk_hw *imx_clk_hw_frac_pll(const char *name, const char *parent_name, + void __iomem *base); + +struct clk_hw *imx_clk_hw_sscg_pll(const char *name, + const char * const *parent_names, + u8 num_parents, + u8 parent, u8 bypass1, u8 bypass2, + void __iomem *base, + unsigned long flags); + +enum imx_pllv3_type { + IMX_PLLV3_GENERIC, + IMX_PLLV3_SYS, + IMX_PLLV3_USB, + IMX_PLLV3_USB_VF610, + IMX_PLLV3_AV, + IMX_PLLV3_ENET, + IMX_PLLV3_ENET_IMX7, + IMX_PLLV3_SYS_VF610, + IMX_PLLV3_DDR_IMX7, + IMX_PLLV3_AV_IMX7, +}; + +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); + +#define PLL_1416X_RATE(_rate, _m, _p, _s) \ + { \ + .rate = (_rate), \ + .mdiv = (_m), \ + .pdiv = (_p), \ + .sdiv = (_s), \ + } + +#define PLL_1443X_RATE(_rate, _m, _p, _s, _k) \ + { \ + .rate = (_rate), \ + .mdiv = (_m), \ + .pdiv = (_p), \ + .sdiv = (_s), \ + .kdiv = (_k), \ + } + +struct clk_hw *imx_clk_hw_pllv4(enum imx_pllv4_type type, const char *name, + const char *parent_name, void __iomem *base); + +struct clk_hw *clk_hw_register_gate2(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + void __iomem *reg, u8 bit_idx, u8 cgr_val, u8 cgr_mask, + u8 clk_gate_flags, spinlock_t *lock, + unsigned int *share_count); + +struct clk * imx_obtain_fixed_clock( + const char *name, unsigned long rate); + +struct clk_hw *imx_obtain_fixed_clock_hw( + const char *name, unsigned long rate); + +struct clk_hw *imx_obtain_fixed_clk_hw(struct device_node *np, + const char *name); + +struct clk_hw *imx_clk_hw_gate_exclusive(const char *name, const char *parent, + void __iomem *reg, u8 shift, u32 exclusive_mask); + +struct clk_hw *imx_clk_hw_pfd(const char *name, const char *parent_name, + void __iomem *reg, u8 idx); + +struct clk_hw *imx_clk_hw_pfdv2(enum imx_pfdv2_type type, const char *name, + const char *parent_name, void __iomem *reg, u8 idx); + +struct clk_hw *imx_clk_hw_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_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); + +struct clk_hw *imx7ulp_clk_hw_composite(const char *name, + const char * const *parent_names, + int num_parents, bool mux_present, + bool rate_present, bool gate_present, + void __iomem *reg); + +struct clk_hw *imx8ulp_clk_hw_composite(const char *name, + const char * const *parent_names, + int num_parents, bool mux_present, + bool rate_present, bool gate_present, + void __iomem *reg, bool has_swrst); + +struct clk_hw *imx_clk_hw_fixup_divider(const char *name, const char *parent, + void __iomem *reg, u8 shift, u8 width, + void (*fixup)(u32 *val)); + +struct clk_hw *imx_clk_hw_fixup_mux(const char *name, void __iomem *reg, + u8 shift, u8 width, const char * const *parents, + int num_parents, void (*fixup)(u32 *val)); + +static inline struct clk *to_clk(struct clk_hw *hw) +{ + if (IS_ERR_OR_NULL(hw)) + return ERR_CAST(hw); + return hw->clk; +} + +static inline struct clk_hw *imx_clk_hw_fixed(const char *name, int rate) +{ + return clk_hw_register_fixed_rate(NULL, name, NULL, 0, rate); +} + +static inline struct clk_hw *imx_clk_hw_fixed_factor(const char *name, + const char *parent, unsigned int mult, unsigned int div) +{ + return clk_hw_register_fixed_factor(NULL, name, parent, + CLK_SET_RATE_PARENT, mult, div); +} + +static inline struct clk_hw *__imx_clk_hw_divider(const char *name, + const char *parent, + void __iomem *reg, u8 shift, + u8 width, unsigned long flags) +{ + return clk_hw_register_divider(NULL, name, parent, flags, + reg, shift, width, 0, &imx_ccm_lock); +} + +static inline struct clk_hw *__imx_clk_hw_gate(const char *name, const char *parent, + void __iomem *reg, u8 shift, + unsigned long flags, + unsigned long clk_gate_flags) +{ + return clk_hw_register_gate(NULL, name, parent, flags | CLK_SET_RATE_PARENT, reg, + shift, clk_gate_flags, &imx_ccm_lock); +} + +static inline struct clk_hw *__imx_clk_hw_gate2(const char *name, const char *parent, + void __iomem *reg, u8 shift, u8 cgr_val, + unsigned long flags, + unsigned int *share_count) +{ + return clk_hw_register_gate2(NULL, name, parent, flags | CLK_SET_RATE_PARENT, reg, + shift, cgr_val, 0x3, 0, &imx_ccm_lock, share_count); +} + +static inline struct clk_hw *__imx_clk_hw_mux(const char *name, void __iomem *reg, + u8 shift, u8 width, const char * const *parents, + int num_parents, unsigned long flags, unsigned long clk_mux_flags) +{ + return clk_hw_register_mux(NULL, name, parents, num_parents, + flags | CLK_SET_RATE_NO_REPARENT, reg, shift, + width, clk_mux_flags, &imx_ccm_lock); +} + +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); + +#define IMX_COMPOSITE_CORE BIT(0) +#define IMX_COMPOSITE_BUS BIT(1) +#define IMX_COMPOSITE_FW_MANAGED BIT(2) + +#define IMX_COMPOSITE_CLK_FLAGS_DEFAULT \ + (CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE) +#define IMX_COMPOSITE_CLK_FLAGS_CRITICAL \ + (IMX_COMPOSITE_CLK_FLAGS_DEFAULT | CLK_IS_CRITICAL) +#define IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE \ + (IMX_COMPOSITE_CLK_FLAGS_DEFAULT | CLK_GET_RATE_NOCACHE) +#define IMX_COMPOSITE_CLK_FLAGS_CRITICAL_GET_RATE_NO_CACHE \ + (IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE | CLK_IS_CRITICAL) + +struct clk_hw *__imx8m_clk_hw_composite(const char *name, + const char * const *parent_names, + int num_parents, + void __iomem *reg, + u32 composite_flags, + unsigned long flags); + +#define _imx8m_clk_hw_composite(name, parent_names, reg, composite_flags, flags) \ + __imx8m_clk_hw_composite(name, parent_names, \ + ARRAY_SIZE(parent_names), reg, composite_flags, flags) + +#define imx8m_clk_hw_composite(name, parent_names, reg) \ + _imx8m_clk_hw_composite(name, parent_names, reg, \ + 0, IMX_COMPOSITE_CLK_FLAGS_DEFAULT) + +#define imx8m_clk_hw_composite_critical(name, parent_names, reg) \ + _imx8m_clk_hw_composite(name, parent_names, reg, \ + 0, IMX_COMPOSITE_CLK_FLAGS_CRITICAL) + +#define imx8m_clk_hw_composite_bus(name, parent_names, reg) \ + _imx8m_clk_hw_composite(name, parent_names, reg, \ + IMX_COMPOSITE_BUS, IMX_COMPOSITE_CLK_FLAGS_DEFAULT) + +#define imx8m_clk_hw_composite_bus_critical(name, parent_names, reg) \ + _imx8m_clk_hw_composite(name, parent_names, reg, \ + IMX_COMPOSITE_BUS, IMX_COMPOSITE_CLK_FLAGS_CRITICAL) + +#define imx8m_clk_hw_composite_core(name, parent_names, reg) \ + _imx8m_clk_hw_composite(name, parent_names, reg, \ + IMX_COMPOSITE_CORE, IMX_COMPOSITE_CLK_FLAGS_DEFAULT) + +#define imx8m_clk_hw_fw_managed_composite(name, parent_names, reg) \ + _imx8m_clk_hw_composite(name, parent_names, reg, \ + IMX_COMPOSITE_FW_MANAGED, \ + IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE) + +#define imx8m_clk_hw_fw_managed_composite_critical(name, parent_names, reg) \ + _imx8m_clk_hw_composite(name, parent_names, reg, \ + IMX_COMPOSITE_FW_MANAGED, \ + IMX_COMPOSITE_CLK_FLAGS_CRITICAL_GET_RATE_NO_CACHE) + +struct clk_hw *imx93_clk_composite_flags(const char *name, + const char * const *parent_names, + int num_parents, + void __iomem *reg, + u32 domain_id, + unsigned long flags); +#define imx93_clk_composite(name, parent_names, num_parents, reg, domain_id) \ + imx93_clk_composite_flags(name, parent_names, num_parents, reg, domain_id \ + CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE) + +struct clk_hw *imx93_clk_gate(struct device *dev, const char *name, const char *parent_name, + unsigned long flags, void __iomem *reg, u32 bit_idx, u32 val, + u32 mask, u32 domain_id, unsigned int *share_count); + +struct clk_hw *imx_clk_hw_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); +#endif |