1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/* SPDX-License-Identifier: GPL-2.0 */
/*
* RZ/G2L Clock Pulse Generator
*
* Copyright (C) 2021 Renesas Electronics Corp.
*
*/
#ifndef __RENESAS_RZG2L_CPG_H__
#define __RENESAS_RZG2L_CPG_H__
#define CPG_PL2_DDIV (0x204)
#define CPG_PL3A_DDIV (0x208)
#define CPG_PL2SDHI_DSEL (0x218)
#define CPG_CLKSTATUS (0x280)
#define CPG_PL3_SSEL (0x408)
#define CPG_PL6_ETH_SSEL (0x418)
#define CPG_CLKSTATUS_SELSDHI0_STS BIT(28)
#define CPG_CLKSTATUS_SELSDHI1_STS BIT(29)
#define CPG_SDHI_CLK_SWITCH_STATUS_TIMEOUT_US 20000
/* n = 0/1/2 for PLL1/4/6 */
#define CPG_SAMPLL_CLK1(n) (0x04 + (16 * n))
#define CPG_SAMPLL_CLK2(n) (0x08 + (16 * n))
#define PLL146_CONF(n) (CPG_SAMPLL_CLK1(n) << 22 | CPG_SAMPLL_CLK2(n) << 12)
#define DDIV_PACK(offset, bitpos, size) \
(((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
#define DIVPL2A DDIV_PACK(CPG_PL2_DDIV, 0, 3)
#define DIVPL3A DDIV_PACK(CPG_PL3A_DDIV, 0, 3)
#define DIVPL3B DDIV_PACK(CPG_PL3A_DDIV, 4, 3)
#define DIVPL3C DDIV_PACK(CPG_PL3A_DDIV, 8, 3)
#define SEL_PLL_PACK(offset, bitpos, size) \
(((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
#define SEL_PLL3_3 SEL_PLL_PACK(CPG_PL3_SSEL, 8, 1)
#define SEL_PLL6_2 SEL_PLL_PACK(CPG_PL6_ETH_SSEL, 0, 1)
#define SEL_SDHI0 DDIV_PACK(CPG_PL2SDHI_DSEL, 0, 2)
#define SEL_SDHI1 DDIV_PACK(CPG_PL2SDHI_DSEL, 4, 2)
/**
* Definitions of CPG Core Clocks
*
* These include:
* - Clock outputs exported to DT
* - External input clocks
* - Internal CPG clocks
*/
struct cpg_core_clk {
const char *name;
unsigned int id;
unsigned int parent;
unsigned int div;
unsigned int mult;
unsigned int type;
unsigned int conf;
const struct clk_div_table *dtable;
const char * const *parent_names;
int flag;
int mux_flags;
int num_parents;
};
enum clk_types {
/* Generic */
CLK_TYPE_IN, /* External Clock Input */
CLK_TYPE_FF, /* Fixed Factor Clock */
CLK_TYPE_SAM_PLL,
/* Clock with divider */
CLK_TYPE_DIV,
/* Clock with clock source selector */
CLK_TYPE_MUX,
/* Clock with SD clock source selector */
CLK_TYPE_SD_MUX,
};
#define DEF_TYPE(_name, _id, _type...) \
{ .name = _name, .id = _id, .type = _type }
#define DEF_BASE(_name, _id, _type, _parent...) \
DEF_TYPE(_name, _id, _type, .parent = _parent)
#define DEF_SAMPLL(_name, _id, _parent, _conf) \
DEF_TYPE(_name, _id, CLK_TYPE_SAM_PLL, .parent = _parent, .conf = _conf)
#define DEF_INPUT(_name, _id) \
DEF_TYPE(_name, _id, CLK_TYPE_IN)
#define DEF_FIXED(_name, _id, _parent, _mult, _div) \
DEF_BASE(_name, _id, CLK_TYPE_FF, _parent, .div = _div, .mult = _mult)
#define DEF_DIV(_name, _id, _parent, _conf, _dtable, _flag) \
DEF_TYPE(_name, _id, CLK_TYPE_DIV, .conf = _conf, \
.parent = _parent, .dtable = _dtable, .flag = _flag)
#define DEF_MUX(_name, _id, _conf, _parent_names, _num_parents, _flag, \
_mux_flags) \
DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = _conf, \
.parent_names = _parent_names, .num_parents = _num_parents, \
.flag = _flag, .mux_flags = _mux_flags)
#define DEF_SD_MUX(_name, _id, _conf, _parent_names, _num_parents) \
DEF_TYPE(_name, _id, CLK_TYPE_SD_MUX, .conf = _conf, \
.parent_names = _parent_names, .num_parents = _num_parents)
/**
* struct rzg2l_mod_clk - Module Clocks definitions
*
* @name: handle between common and hardware-specific interfaces
* @id: clock index in array containing all Core and Module Clocks
* @parent: id of parent clock
* @off: register offset
* @bit: ON/MON bit
* @is_coupled: flag to indicate coupled clock
*/
struct rzg2l_mod_clk {
const char *name;
unsigned int id;
unsigned int parent;
u16 off;
u8 bit;
bool is_coupled;
};
#define DEF_MOD_BASE(_name, _id, _parent, _off, _bit, _is_coupled) \
{ \
.name = _name, \
.id = MOD_CLK_BASE + (_id), \
.parent = (_parent), \
.off = (_off), \
.bit = (_bit), \
.is_coupled = (_is_coupled), \
}
#define DEF_MOD(_name, _id, _parent, _off, _bit) \
DEF_MOD_BASE(_name, _id, _parent, _off, _bit, false)
#define DEF_COUPLED(_name, _id, _parent, _off, _bit) \
DEF_MOD_BASE(_name, _id, _parent, _off, _bit, true)
/**
* struct rzg2l_reset - Reset definitions
*
* @off: register offset
* @bit: reset bit
*/
struct rzg2l_reset {
u16 off;
u8 bit;
};
#define DEF_RST(_id, _off, _bit) \
[_id] = { \
.off = (_off), \
.bit = (_bit) \
}
/**
* struct rzg2l_cpg_info - SoC-specific CPG Description
*
* @core_clks: Array of Core Clock definitions
* @num_core_clks: Number of entries in core_clks[]
* @last_dt_core_clk: ID of the last Core Clock exported to DT
* @num_total_core_clks: Total number of Core Clocks (exported + internal)
*
* @mod_clks: Array of Module Clock definitions
* @num_mod_clks: Number of entries in mod_clks[]
* @num_hw_mod_clks: Number of Module Clocks supported by the hardware
*
* @crit_mod_clks: Array with Module Clock IDs of critical clocks that
* should not be disabled without a knowledgeable driver
* @num_crit_mod_clks: Number of entries in crit_mod_clks[]
*/
struct rzg2l_cpg_info {
/* Core Clocks */
const struct cpg_core_clk *core_clks;
unsigned int num_core_clks;
unsigned int last_dt_core_clk;
unsigned int num_total_core_clks;
/* Module Clocks */
const struct rzg2l_mod_clk *mod_clks;
unsigned int num_mod_clks;
unsigned int num_hw_mod_clks;
/* Resets */
const struct rzg2l_reset *resets;
unsigned int num_resets;
/* Critical Module Clocks that should not be disabled */
const unsigned int *crit_mod_clks;
unsigned int num_crit_mod_clks;
};
extern const struct rzg2l_cpg_info r9a07g044_cpg_info;
#endif
|
