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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/dev/clk/starfive/jh7110_clk.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2024 Jari Sihvola <[email protected]>

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 */

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#ifndef _JH7110_CLK_H_

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#define	_JH7110_CLK_H_

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#include <dev/clk/clk.h>

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#define JH7110_CLK_HAS_GATE	0x01

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#define JH7110_CLK_HAS_MUX	0x02

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#define JH7110_CLK_HAS_DIV	0x04

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#define JH7110_CLK_HAS_INV	0x08

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#define AONCRG_RESET_SELECTOR	0x38

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#define AONCRG_RESET_STATUS	0x3c

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#define STGCRG_RESET_SELECTOR	0x74

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#define STGCRG_RESET_STATUS	0x78

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#define SYSCRG_RESET_SELECTOR	0x2f8

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#define SYSCRG_RESET_STATUS	0x308

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struct jh7110_clkgen_softc {

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	struct mtx		mtx;

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	struct clkdom		*clkdom;

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	struct resource		*mem_res;

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	uint32_t		reset_status_offset;

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	uint32_t		reset_selector_offset;

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};

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struct jh7110_clk_def {

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	struct clknode_init_def clkdef;

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	uint32_t		offset;

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	uint32_t		flags;

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	uint64_t		d_max;

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};

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#define	JH7110_CLK(_idx, _name, _pn, _d_max, _flags)		\

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{								\

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	.clkdef.id = _idx,					\

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	.clkdef.name =	_name,					\

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	.clkdef.parent_names = _pn,				\

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	.clkdef.parent_cnt = nitems(_pn),			\

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	.clkdef.flags = CLK_NODE_STATIC_STRINGS,		\

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	.flags = _flags,					\

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	.d_max = _d_max,					\

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}

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#define	JH7110_GATE(_idx, _name, _pn)					\

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	JH7110_CLK(_idx, _name, _pn, 0, JH7110_CLK_HAS_GATE)

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#define	JH7110_MUX(_idx, _name, _pn)					\

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	JH7110_CLK(_idx, _name, _pn, 0, JH7110_CLK_HAS_MUX)

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#define	JH7110_DIV(_idx, _name, _pn, _d_max)				\

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	JH7110_CLK(_idx, _name, _pn, _d_max, JH7110_CLK_HAS_DIV)

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#define	JH7110_GATEMUX(_idx, _name, _pn)				\

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	JH7110_CLK(_idx, _name, _pn, 0, JH7110_CLK_HAS_GATE |		\

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	JH7110_CLK_HAS_MUX)

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#define	JH7110_GATEDIV(_idx, _name, _pn, _d_max)			\

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	JH7110_CLK(_idx, _name, _pn, _d_max, JH7110_CLK_HAS_GATE |	\

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	JH7110_CLK_HAS_DIV)

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#define JH7110_INV(_idx, _name, _pn)					\

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	JH7110_CLK(_idx, _name, _pn, 0, JH7110_CLK_HAS_INV)

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int jh7110_clk_register(struct clkdom *clkdom,

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    const struct jh7110_clk_def *clkdef);

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int jh7110_ofw_map(struct clkdom *clkdom, uint32_t ncells, phandle_t *cells,

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    struct clknode **clk);

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int jh7110_reset_is_asserted(device_t dev, intptr_t id, bool *reset);

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int jh7110_reset_assert(device_t dev, intptr_t id, bool assert);

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#endif	/* _JH7110_CLK_H_ */

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