1 /* SPDX-License-Identifier: GPL-2.0 */
3 * RZ/G2L Clock Pulse Generator
5 * Copyright (C) 2021 Renesas Electronics Corp.
9 #ifndef __RENESAS_RZG2L_CPG_H__
10 #define __RENESAS_RZG2L_CPG_H__
12 #include <linux/notifier.h>
14 #define CPG_SIPLL5_STBY (0x140)
15 #define CPG_SIPLL5_CLK1 (0x144)
16 #define CPG_SIPLL5_CLK3 (0x14C)
17 #define CPG_SIPLL5_CLK4 (0x150)
18 #define CPG_SIPLL5_CLK5 (0x154)
19 #define CPG_SIPLL5_MON (0x15C)
20 #define CPG_PL1_DDIV (0x200)
21 #define CPG_PL2_DDIV (0x204)
22 #define CPG_PL3A_DDIV (0x208)
23 #define CPG_PL6_DDIV (0x210)
24 #define CPG_CLKSTATUS (0x280)
25 #define CPG_PL3_SSEL (0x408)
26 #define CPG_PL6_SSEL (0x414)
27 #define CPG_PL6_ETH_SSEL (0x418)
28 #define CPG_PL5_SDIV (0x420)
29 #define CPG_RST_MON (0x680)
30 #define CPG_OTHERFUNC1_REG (0xBE8)
32 #define CPG_SIPLL5_STBY_RESETB BIT(0)
33 #define CPG_SIPLL5_STBY_RESETB_WEN BIT(16)
34 #define CPG_SIPLL5_STBY_SSCG_EN_WEN BIT(18)
35 #define CPG_SIPLL5_STBY_DOWNSPREAD_WEN BIT(20)
36 #define CPG_SIPLL5_CLK4_RESV_LSB (0xFF)
37 #define CPG_SIPLL5_MON_PLL5_LOCK BIT(4)
39 #define CPG_OTHERFUNC1_REG_RES0_ON_WEN BIT(16)
41 #define CPG_PL5_SDIV_DIV_DSI_A_WEN BIT(16)
42 #define CPG_PL5_SDIV_DIV_DSI_B_WEN BIT(24)
44 #define CPG_CLKSTATUS_SELSDHI0_STS BIT(28)
45 #define CPG_CLKSTATUS_SELSDHI1_STS BIT(29)
47 /* n = 0/1/2 for PLL1/4/6 */
48 #define CPG_SAMPLL_CLK1(n) (0x04 + (16 * n))
49 #define CPG_SAMPLL_CLK2(n) (0x08 + (16 * n))
51 #define PLL146_CONF(n) (CPG_SAMPLL_CLK1(n) << 22 | CPG_SAMPLL_CLK2(n) << 12)
53 #define DDIV_PACK(offset, bitpos, size) \
54 (((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
55 #define DIVPL1A DDIV_PACK(CPG_PL1_DDIV, 0, 2)
56 #define DIVPL2A DDIV_PACK(CPG_PL2_DDIV, 0, 3)
57 #define DIVDSILPCLK DDIV_PACK(CPG_PL2_DDIV, 12, 2)
58 #define DIVPL3A DDIV_PACK(CPG_PL3A_DDIV, 0, 3)
59 #define DIVPL3B DDIV_PACK(CPG_PL3A_DDIV, 4, 3)
60 #define DIVPL3C DDIV_PACK(CPG_PL3A_DDIV, 8, 3)
61 #define DIVGPU DDIV_PACK(CPG_PL6_DDIV, 0, 2)
63 #define SEL_PLL_PACK(offset, bitpos, size) \
64 (((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
66 #define SEL_PLL3_3 SEL_PLL_PACK(CPG_PL3_SSEL, 8, 1)
67 #define SEL_PLL5_4 SEL_PLL_PACK(CPG_OTHERFUNC1_REG, 0, 1)
68 #define SEL_PLL6_2 SEL_PLL_PACK(CPG_PL6_ETH_SSEL, 0, 1)
69 #define SEL_GPU2 SEL_PLL_PACK(CPG_PL6_SSEL, 12, 1)
71 #define EXTAL_FREQ_IN_MEGA_HZ (24)
74 * Definitions of CPG Core Clocks
77 * - Clock outputs exported to DT
78 * - External input clocks
79 * - Internal CPG clocks
90 const struct clk_div_table *dtable;
92 const unsigned long invalid_rate;
93 const unsigned long max_rate;
94 const char * const *parent_names;
95 notifier_fn_t notifier;
103 CLK_TYPE_IN, /* External Clock Input */
104 CLK_TYPE_FF, /* Fixed Factor Clock */
108 /* Clock with divider */
112 /* Clock with clock source selector */
115 /* Clock with SD clock source selector */
118 /* Clock for SIPLL5 */
121 /* Clock for PLL5_4 clock source selector */
124 /* Clock for DSI divider */
129 #define DEF_TYPE(_name, _id, _type...) \
130 { .name = _name, .id = _id, .type = _type }
131 #define DEF_BASE(_name, _id, _type, _parent...) \
132 DEF_TYPE(_name, _id, _type, .parent = _parent)
133 #define DEF_SAMPLL(_name, _id, _parent, _conf) \
134 DEF_TYPE(_name, _id, CLK_TYPE_SAM_PLL, .parent = _parent, .conf = _conf)
135 #define DEF_G3S_PLL(_name, _id, _parent, _conf) \
136 DEF_TYPE(_name, _id, CLK_TYPE_G3S_PLL, .parent = _parent, .conf = _conf)
137 #define DEF_INPUT(_name, _id) \
138 DEF_TYPE(_name, _id, CLK_TYPE_IN)
139 #define DEF_FIXED(_name, _id, _parent, _mult, _div) \
140 DEF_BASE(_name, _id, CLK_TYPE_FF, _parent, .div = _div, .mult = _mult)
141 #define DEF_DIV(_name, _id, _parent, _conf, _dtable) \
142 DEF_TYPE(_name, _id, CLK_TYPE_DIV, .conf = _conf, \
143 .parent = _parent, .dtable = _dtable, \
144 .flag = CLK_DIVIDER_HIWORD_MASK)
145 #define DEF_DIV_RO(_name, _id, _parent, _conf, _dtable) \
146 DEF_TYPE(_name, _id, CLK_TYPE_DIV, .conf = _conf, \
147 .parent = _parent, .dtable = _dtable, \
148 .flag = CLK_DIVIDER_READ_ONLY)
149 #define DEF_G3S_DIV(_name, _id, _parent, _conf, _sconf, _dtable, _invalid_rate, \
150 _max_rate, _clk_flags, _notif) \
151 DEF_TYPE(_name, _id, CLK_TYPE_G3S_DIV, .conf = _conf, .sconf = _sconf, \
152 .parent = _parent, .dtable = _dtable, \
153 .invalid_rate = _invalid_rate, \
154 .max_rate = _max_rate, .flag = (_clk_flags), \
156 #define DEF_MUX(_name, _id, _conf, _parent_names) \
157 DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = _conf, \
158 .parent_names = _parent_names, \
159 .num_parents = ARRAY_SIZE(_parent_names), \
160 .mux_flags = CLK_MUX_HIWORD_MASK)
161 #define DEF_MUX_RO(_name, _id, _conf, _parent_names) \
162 DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = _conf, \
163 .parent_names = _parent_names, \
164 .num_parents = ARRAY_SIZE(_parent_names), \
165 .mux_flags = CLK_MUX_READ_ONLY)
166 #define DEF_SD_MUX(_name, _id, _conf, _sconf, _parent_names, _mtable, _clk_flags, _notifier) \
167 DEF_TYPE(_name, _id, CLK_TYPE_SD_MUX, .conf = _conf, .sconf = _sconf, \
168 .parent_names = _parent_names, \
169 .num_parents = ARRAY_SIZE(_parent_names), \
170 .mtable = _mtable, .flag = _clk_flags, .notifier = _notifier)
171 #define DEF_PLL5_FOUTPOSTDIV(_name, _id, _parent) \
172 DEF_TYPE(_name, _id, CLK_TYPE_SIPLL5, .parent = _parent)
173 #define DEF_PLL5_4_MUX(_name, _id, _conf, _parent_names) \
174 DEF_TYPE(_name, _id, CLK_TYPE_PLL5_4_MUX, .conf = _conf, \
175 .parent_names = _parent_names, \
176 .num_parents = ARRAY_SIZE(_parent_names))
177 #define DEF_DSI_DIV(_name, _id, _parent, _flag) \
178 DEF_TYPE(_name, _id, CLK_TYPE_DSI_DIV, .parent = _parent, .flag = _flag)
181 * struct rzg2l_mod_clk - Module Clocks definitions
183 * @name: handle between common and hardware-specific interfaces
184 * @id: clock index in array containing all Core and Module Clocks
185 * @parent: id of parent clock
186 * @off: register offset
188 * @is_coupled: flag to indicate coupled clock
190 struct rzg2l_mod_clk {
199 #define DEF_MOD_BASE(_name, _id, _parent, _off, _bit, _is_coupled) \
202 .id = MOD_CLK_BASE + (_id), \
203 .parent = (_parent), \
206 .is_coupled = (_is_coupled), \
209 #define DEF_MOD(_name, _id, _parent, _off, _bit) \
210 DEF_MOD_BASE(_name, _id, _parent, _off, _bit, false)
212 #define DEF_COUPLED(_name, _id, _parent, _off, _bit) \
213 DEF_MOD_BASE(_name, _id, _parent, _off, _bit, true)
216 * struct rzg2l_reset - Reset definitions
218 * @off: register offset
220 * @monbit: monitor bit in CPG_RST_MON register, -1 if none
228 #define DEF_RST_MON(_id, _off, _bit, _monbit) \
232 .monbit = (_monbit) \
234 #define DEF_RST(_id, _off, _bit) \
235 DEF_RST_MON(_id, _off, _bit, -1)
238 * struct rzg2l_cpg_info - SoC-specific CPG Description
240 * @core_clks: Array of Core Clock definitions
241 * @num_core_clks: Number of entries in core_clks[]
242 * @last_dt_core_clk: ID of the last Core Clock exported to DT
243 * @num_total_core_clks: Total number of Core Clocks (exported + internal)
245 * @mod_clks: Array of Module Clock definitions
246 * @num_mod_clks: Number of entries in mod_clks[]
247 * @num_hw_mod_clks: Number of Module Clocks supported by the hardware
249 * @resets: Array of Module Reset definitions
250 * @num_resets: Number of entries in resets[]
252 * @crit_mod_clks: Array with Module Clock IDs of critical clocks that
253 * should not be disabled without a knowledgeable driver
254 * @num_crit_mod_clks: Number of entries in crit_mod_clks[]
255 * @has_clk_mon_regs: Flag indicating whether the SoC has CLK_MON registers
257 struct rzg2l_cpg_info {
259 const struct cpg_core_clk *core_clks;
260 unsigned int num_core_clks;
261 unsigned int last_dt_core_clk;
262 unsigned int num_total_core_clks;
265 const struct rzg2l_mod_clk *mod_clks;
266 unsigned int num_mod_clks;
267 unsigned int num_hw_mod_clks;
269 /* No PM Module Clocks */
270 const unsigned int *no_pm_mod_clks;
271 unsigned int num_no_pm_mod_clks;
274 const struct rzg2l_reset *resets;
275 unsigned int num_resets;
277 /* Critical Module Clocks that should not be disabled */
278 const unsigned int *crit_mod_clks;
279 unsigned int num_crit_mod_clks;
281 bool has_clk_mon_regs;
284 extern const struct rzg2l_cpg_info r9a07g043_cpg_info;
285 extern const struct rzg2l_cpg_info r9a07g044_cpg_info;
286 extern const struct rzg2l_cpg_info r9a07g054_cpg_info;
287 extern const struct rzg2l_cpg_info r9a08g045_cpg_info;
288 extern const struct rzg2l_cpg_info r9a09g011_cpg_info;
290 int rzg2l_cpg_sd_clk_mux_notifier(struct notifier_block *nb, unsigned long event, void *data);
291 int rzg3s_cpg_div_clk_notifier(struct notifier_block *nb, unsigned long event, void *data);