diff options
Diffstat (limited to 'drivers/clk/sophgo/clk-cv18xx-pll.h')
| -rw-r--r-- | drivers/clk/sophgo/clk-cv18xx-pll.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/clk/sophgo/clk-cv18xx-pll.h b/drivers/clk/sophgo/clk-cv18xx-pll.h new file mode 100644 index 0000000000..7a33f3da2d --- /dev/null +++ b/drivers/clk/sophgo/clk-cv18xx-pll.h @@ -0,0 +1,118 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2023 Inochi Amaoto <inochiama@outlook.com> + */ + +#ifndef _CLK_SOPHGO_CV1800_PLL_H_ +#define _CLK_SOPHGO_CV1800_PLL_H_ + +#include "clk-cv18xx-common.h" + +struct cv1800_clk_pll_limit { + struct { + u8 min; + u8 max; + } pre_div, div, post_div, ictrl, mode; +}; + +#define _CV1800_PLL_LIMIT(_min, _max) \ + { \ + .min = _min, \ + .max = _max, \ + } \ + +#define for_each_pll_limit_range(_var, _restrict) \ + for (_var = (_restrict)->min; _var <= (_restrict)->max; _var++) + +struct cv1800_clk_pll_synthesizer { + struct cv1800_clk_regbit en; + struct cv1800_clk_regbit clk_half; + u32 ctrl; + u32 set; +}; + +#define _PLL_PRE_DIV_SEL_FIELD GENMASK(6, 0) +#define _PLL_POST_DIV_SEL_FIELD GENMASK(14, 8) +#define _PLL_SEL_MODE_FIELD GENMASK(16, 15) +#define _PLL_DIV_SEL_FIELD GENMASK(23, 17) +#define _PLL_ICTRL_FIELD GENMASK(26, 24) + +#define _PLL_ALL_FIELD_MASK \ + (_PLL_PRE_DIV_SEL_FIELD | \ + _PLL_POST_DIV_SEL_FIELD | \ + _PLL_SEL_MODE_FIELD | \ + _PLL_DIV_SEL_FIELD | \ + _PLL_ICTRL_FIELD) + +#define PLL_COPY_REG(_dest, _src) \ + (((_dest) & (~_PLL_ALL_FIELD_MASK)) | ((_src) & _PLL_ALL_FIELD_MASK)) + +#define PLL_GET_PRE_DIV_SEL(_reg) \ + FIELD_GET(_PLL_PRE_DIV_SEL_FIELD, (_reg)) +#define PLL_GET_POST_DIV_SEL(_reg) \ + FIELD_GET(_PLL_POST_DIV_SEL_FIELD, (_reg)) +#define PLL_GET_SEL_MODE(_reg) \ + FIELD_GET(_PLL_SEL_MODE_FIELD, (_reg)) +#define PLL_GET_DIV_SEL(_reg) \ + FIELD_GET(_PLL_DIV_SEL_FIELD, (_reg)) +#define PLL_GET_ICTRL(_reg) \ + FIELD_GET(_PLL_ICTRL_FIELD, (_reg)) + +#define PLL_SET_PRE_DIV_SEL(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_PRE_DIV_SEL_FIELD) +#define PLL_SET_POST_DIV_SEL(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_POST_DIV_SEL_FIELD) +#define PLL_SET_SEL_MODE(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_SEL_MODE_FIELD) +#define PLL_SET_DIV_SEL(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_DIV_SEL_FIELD) +#define PLL_SET_ICTRL(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_ICTRL_FIELD) + +struct cv1800_clk_pll { + struct cv1800_clk_common common; + u32 pll_reg; + struct cv1800_clk_regbit pll_pwd; + struct cv1800_clk_regbit pll_status; + const struct cv1800_clk_pll_limit *pll_limit; + struct cv1800_clk_pll_synthesizer *pll_syn; +}; + +#define CV1800_INTEGRAL_PLL(_name, _parent, _pll_reg, \ + _pll_pwd_reg, _pll_pwd_shift, \ + _pll_status_reg, _pll_status_shift, \ + _pll_limit, _flags) \ + struct cv1800_clk_pll _name = { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + &cv1800_clk_ipll_ops,\ + _flags), \ + .pll_reg = _pll_reg, \ + .pll_pwd = CV1800_CLK_BIT(_pll_pwd_reg, \ + _pll_pwd_shift), \ + .pll_status = CV1800_CLK_BIT(_pll_status_reg, \ + _pll_status_shift), \ + .pll_limit = _pll_limit, \ + .pll_syn = NULL, \ + } + +#define CV1800_FACTIONAL_PLL(_name, _parent, _pll_reg, \ + _pll_pwd_reg, _pll_pwd_shift, \ + _pll_status_reg, _pll_status_shift, \ + _pll_limit, _pll_syn, _flags) \ + struct cv1800_clk_pll _name = { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + &cv1800_clk_fpll_ops,\ + _flags), \ + .pll_reg = _pll_reg, \ + .pll_pwd = CV1800_CLK_BIT(_pll_pwd_reg, \ + _pll_pwd_shift), \ + .pll_status = CV1800_CLK_BIT(_pll_status_reg, \ + _pll_status_shift), \ + .pll_limit = _pll_limit, \ + .pll_syn = _pll_syn, \ + } + +extern const struct clk_ops cv1800_clk_ipll_ops; +extern const struct clk_ops cv1800_clk_fpll_ops; + +#endif // _CLK_SOPHGO_CV1800_PLL_H_ |