1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * R-Car Gen4 Clock Pulse Generator
4 *
5 * Copyright (C) 2021 Renesas Electronics Corp.
6 *
7 */
8
9#ifndef __CLK_RENESAS_RCAR_GEN4_CPG_H__
10#define __CLK_RENESAS_RCAR_GEN4_CPG_H__
11
12enum rcar_gen4_clk_types {
13	CLK_TYPE_GEN4_MAIN = CLK_TYPE_CUSTOM,
14	CLK_TYPE_GEN4_PLL1,
15	CLK_TYPE_GEN4_PLL2,
16	CLK_TYPE_GEN4_PLL2_VAR,
17	CLK_TYPE_GEN4_PLL2X_3X,	/* r8a779a0 only */
18	CLK_TYPE_GEN4_PLL3,
19	CLK_TYPE_GEN4_PLL4,
20	CLK_TYPE_GEN4_PLL5,
21	CLK_TYPE_GEN4_PLL6,
22	CLK_TYPE_GEN4_SDSRC,
23	CLK_TYPE_GEN4_SDH,
24	CLK_TYPE_GEN4_SD,
25	CLK_TYPE_GEN4_MDSEL,	/* Select parent/divider using mode pin */
26	CLK_TYPE_GEN4_Z,
27	CLK_TYPE_GEN4_OSC,	/* OSC EXTAL predivider and fixed divider */
28	CLK_TYPE_GEN4_RPCSRC,
29	CLK_TYPE_GEN4_RPC,
30	CLK_TYPE_GEN4_RPCD2,
31
32	/* SoC specific definitions start here */
33	CLK_TYPE_GEN4_SOC_BASE,
34};
35
36#define DEF_GEN4_SDH(_name, _id, _parent, _offset)	\
37	DEF_BASE(_name, _id, CLK_TYPE_GEN4_SDH, _parent, .offset = _offset)
38
39#define DEF_GEN4_SD(_name, _id, _parent, _offset)	\
40	DEF_BASE(_name, _id, CLK_TYPE_GEN4_SD, _parent, .offset = _offset)
41
42#define DEF_GEN4_MDSEL(_name, _id, _md, _parent0, _div0, _parent1, _div1) \
43	DEF_BASE(_name, _id, CLK_TYPE_GEN4_MDSEL,	\
44		 (_parent0) << 16 | (_parent1),		\
45		 .div = (_div0) << 16 | (_div1), .offset = _md)
46
47#define DEF_GEN4_OSC(_name, _id, _parent, _div)		\
48	DEF_BASE(_name, _id, CLK_TYPE_GEN4_OSC, _parent, .div = _div)
49
50#define DEF_GEN4_Z(_name, _id, _type, _parent, _div, _offset)	\
51	DEF_BASE(_name, _id, _type, _parent, .div = _div, .offset = _offset)
52
53struct rcar_gen4_cpg_pll_config {
54	u8 extal_div;
55	u8 pll1_mult;
56	u8 pll1_div;
57	u8 pll2_mult;
58	u8 pll2_div;
59	u8 pll3_mult;
60	u8 pll3_div;
61	u8 pll4_mult;
62	u8 pll4_div;
63	u8 pll5_mult;
64	u8 pll5_div;
65	u8 pll6_mult;
66	u8 pll6_div;
67	u8 osc_prediv;
68};
69
70#define CPG_RPCCKCR	0x874
71#define SD0CKCR1	0x8a4
72
73struct clk *rcar_gen4_cpg_clk_register(struct device *dev,
74	const struct cpg_core_clk *core, const struct cpg_mssr_info *info,
75	struct clk **clks, void __iomem *base,
76	struct raw_notifier_head *notifiers);
77int rcar_gen4_cpg_init(const struct rcar_gen4_cpg_pll_config *config,
78		       unsigned int clk_extalr, u32 mode);
79
80#endif
81