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 #define CPG_SIPLL5_STBY (0x140)
13 #define CPG_SIPLL5_CLK1 (0x144)
14 #define CPG_SIPLL5_CLK3 (0x14C)
15 #define CPG_SIPLL5_CLK4 (0x150)
16 #define CPG_SIPLL5_CLK5 (0x154)
17 #define CPG_SIPLL5_MON (0x15C)
18 #define CPG_PL1_DDIV (0x200)
19 #define CPG_PL2_DDIV (0x204)
20 #define CPG_PL3A_DDIV (0x208)
21 #define CPG_PL6_DDIV (0x210)
22 #define CPG_PL2SDHI_DSEL (0x218)
23 #define CPG_CLKSTATUS (0x280)
24 #define CPG_PL3_SSEL (0x408)
25 #define CPG_PL6_SSEL (0x414)
26 #define CPG_PL6_ETH_SSEL (0x418)
27 #define CPG_PL5_SDIV (0x420)
28 #define CPG_RST_MON (0x680)
29 #define CPG_OTHERFUNC1_REG (0xBE8)
31 #define CPG_SIPLL5_STBY_RESETB BIT(0)
32 #define CPG_SIPLL5_STBY_RESETB_WEN BIT(16)
33 #define CPG_SIPLL5_STBY_SSCG_EN_WEN BIT(18)
34 #define CPG_SIPLL5_STBY_DOWNSPREAD_WEN BIT(20)
35 #define CPG_SIPLL5_CLK1_POSTDIV1_WEN BIT(16)
36 #define CPG_SIPLL5_CLK1_POSTDIV2_WEN BIT(20)
37 #define CPG_SIPLL5_CLK1_REFDIV_WEN BIT(24)
38 #define CPG_SIPLL5_CLK4_RESV_LSB (0xFF)
39 #define CPG_SIPLL5_MON_PLL5_LOCK BIT(4)
41 #define CPG_OTHERFUNC1_REG_RES0_ON_WEN BIT(16)
43 #define CPG_PL5_SDIV_DIV_DSI_A_WEN BIT(16)
44 #define CPG_PL5_SDIV_DIV_DSI_B_WEN BIT(24)
46 #define CPG_CLKSTATUS_SELSDHI0_STS BIT(28)
47 #define CPG_CLKSTATUS_SELSDHI1_STS BIT(29)
49 #define CPG_SDHI_CLK_SWITCH_STATUS_TIMEOUT_US 20000
51 /* n = 0/1/2 for PLL1/4/6 */
52 #define CPG_SAMPLL_CLK1(n) (0x04 + (16 * n))
53 #define CPG_SAMPLL_CLK2(n) (0x08 + (16 * n))
55 #define PLL146_CONF(n) (CPG_SAMPLL_CLK1(n) << 22 | CPG_SAMPLL_CLK2(n) << 12)
57 #define DDIV_PACK(offset, bitpos, size) \
58 (((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
59 #define DIVPL1A DDIV_PACK(CPG_PL1_DDIV, 0, 2)
60 #define DIVPL2A DDIV_PACK(CPG_PL2_DDIV, 0, 3)
61 #define DIVDSILPCLK DDIV_PACK(CPG_PL2_DDIV, 12, 2)
62 #define DIVPL3A DDIV_PACK(CPG_PL3A_DDIV, 0, 3)
63 #define DIVPL3B DDIV_PACK(CPG_PL3A_DDIV, 4, 3)
64 #define DIVPL3C DDIV_PACK(CPG_PL3A_DDIV, 8, 3)
65 #define DIVGPU DDIV_PACK(CPG_PL6_DDIV, 0, 2)
67 #define SEL_PLL_PACK(offset, bitpos, size) \
68 (((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
70 #define SEL_PLL3_3 SEL_PLL_PACK(CPG_PL3_SSEL, 8, 1)
71 #define SEL_PLL5_4 SEL_PLL_PACK(CPG_OTHERFUNC1_REG, 0, 1)
72 #define SEL_PLL6_2 SEL_PLL_PACK(CPG_PL6_ETH_SSEL, 0, 1)
73 #define SEL_GPU2 SEL_PLL_PACK(CPG_PL6_SSEL, 12, 1)
75 #define SEL_SDHI0 DDIV_PACK(CPG_PL2SDHI_DSEL, 0, 2)
76 #define SEL_SDHI1 DDIV_PACK(CPG_PL2SDHI_DSEL, 4, 2)
78 #define EXTAL_FREQ_IN_MEGA_HZ (24)
81 * Definitions of CPG Core Clocks
84 * - Clock outputs exported to DT
85 * - External input clocks
86 * - Internal CPG clocks
96 const struct clk_div_table *dtable;
97 const char * const *parent_names;
105 CLK_TYPE_IN, /* External Clock Input */
106 CLK_TYPE_FF, /* Fixed Factor Clock */
109 /* 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_INPUT(_name, _id) \
136 DEF_TYPE(_name, _id, CLK_TYPE_IN)
137 #define DEF_FIXED(_name, _id, _parent, _mult, _div) \
138 DEF_BASE(_name, _id, CLK_TYPE_FF, _parent, .div = _div, .mult = _mult)
139 #define DEF_DIV(_name, _id, _parent, _conf, _dtable) \
140 DEF_TYPE(_name, _id, CLK_TYPE_DIV, .conf = _conf, \
141 .parent = _parent, .dtable = _dtable, \
142 .flag = CLK_DIVIDER_HIWORD_MASK)
143 #define DEF_DIV_RO(_name, _id, _parent, _conf, _dtable) \
144 DEF_TYPE(_name, _id, CLK_TYPE_DIV, .conf = _conf, \
145 .parent = _parent, .dtable = _dtable, \
146 .flag = CLK_DIVIDER_READ_ONLY)
147 #define DEF_MUX(_name, _id, _conf, _parent_names) \
148 DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = _conf, \
149 .parent_names = _parent_names, \
150 .num_parents = ARRAY_SIZE(_parent_names), \
151 .mux_flags = CLK_MUX_HIWORD_MASK)
152 #define DEF_MUX_RO(_name, _id, _conf, _parent_names) \
153 DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = _conf, \
154 .parent_names = _parent_names, \
155 .num_parents = ARRAY_SIZE(_parent_names), \
156 .mux_flags = CLK_MUX_READ_ONLY)
157 #define DEF_SD_MUX(_name, _id, _conf, _parent_names) \
158 DEF_TYPE(_name, _id, CLK_TYPE_SD_MUX, .conf = _conf, \
159 .parent_names = _parent_names, \
160 .num_parents = ARRAY_SIZE(_parent_names))
161 #define DEF_PLL5_FOUTPOSTDIV(_name, _id, _parent) \
162 DEF_TYPE(_name, _id, CLK_TYPE_SIPLL5, .parent = _parent)
163 #define DEF_PLL5_4_MUX(_name, _id, _conf, _parent_names) \
164 DEF_TYPE(_name, _id, CLK_TYPE_PLL5_4_MUX, .conf = _conf, \
165 .parent_names = _parent_names, \
166 .num_parents = ARRAY_SIZE(_parent_names))
167 #define DEF_DSI_DIV(_name, _id, _parent, _flag) \
168 DEF_TYPE(_name, _id, CLK_TYPE_DSI_DIV, .parent = _parent, .flag = _flag)
171 * struct rzg2l_mod_clk - Module Clocks definitions
173 * @name: handle between common and hardware-specific interfaces
174 * @id: clock index in array containing all Core and Module Clocks
175 * @parent: id of parent clock
176 * @off: register offset
178 * @is_coupled: flag to indicate coupled clock
180 struct rzg2l_mod_clk {
189 #define DEF_MOD_BASE(_name, _id, _parent, _off, _bit, _is_coupled) \
192 .id = MOD_CLK_BASE + (_id), \
193 .parent = (_parent), \
196 .is_coupled = (_is_coupled), \
199 #define DEF_MOD(_name, _id, _parent, _off, _bit) \
200 DEF_MOD_BASE(_name, _id, _parent, _off, _bit, false)
202 #define DEF_COUPLED(_name, _id, _parent, _off, _bit) \
203 DEF_MOD_BASE(_name, _id, _parent, _off, _bit, true)
206 * struct rzg2l_reset - Reset definitions
208 * @off: register offset
210 * @monbit: monitor bit in CPG_RST_MON register, -1 if none
218 #define DEF_RST_MON(_id, _off, _bit, _monbit) \
222 .monbit = (_monbit) \
224 #define DEF_RST(_id, _off, _bit) \
225 DEF_RST_MON(_id, _off, _bit, -1)
228 * struct rzg2l_cpg_info - SoC-specific CPG Description
230 * @core_clks: Array of Core Clock definitions
231 * @num_core_clks: Number of entries in core_clks[]
232 * @last_dt_core_clk: ID of the last Core Clock exported to DT
233 * @num_total_core_clks: Total number of Core Clocks (exported + internal)
235 * @mod_clks: Array of Module Clock definitions
236 * @num_mod_clks: Number of entries in mod_clks[]
237 * @num_hw_mod_clks: Number of Module Clocks supported by the hardware
239 * @resets: Array of Module Reset definitions
240 * @num_resets: Number of entries in resets[]
242 * @crit_mod_clks: Array with Module Clock IDs of critical clocks that
243 * should not be disabled without a knowledgeable driver
244 * @num_crit_mod_clks: Number of entries in crit_mod_clks[]
245 * @has_clk_mon_regs: Flag indicating whether the SoC has CLK_MON registers
247 struct rzg2l_cpg_info {
249 const struct cpg_core_clk *core_clks;
250 unsigned int num_core_clks;
251 unsigned int last_dt_core_clk;
252 unsigned int num_total_core_clks;
255 const struct rzg2l_mod_clk *mod_clks;
256 unsigned int num_mod_clks;
257 unsigned int num_hw_mod_clks;
259 /* No PM Module Clocks */
260 const unsigned int *no_pm_mod_clks;
261 unsigned int num_no_pm_mod_clks;
264 const struct rzg2l_reset *resets;
265 unsigned int num_resets;
267 /* Critical Module Clocks that should not be disabled */
268 const unsigned int *crit_mod_clks;
269 unsigned int num_crit_mod_clks;
271 bool has_clk_mon_regs;
274 extern const struct rzg2l_cpg_info r9a07g043_cpg_info;
275 extern const struct rzg2l_cpg_info r9a07g044_cpg_info;
276 extern const struct rzg2l_cpg_info r9a07g054_cpg_info;
277 extern const struct rzg2l_cpg_info r9a09g011_cpg_info;