1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * AM43xx Clock domains framework
4  *
5  * Copyright (C) 2013 Texas Instruments, Inc.
6  */
7 
8 #include <linux/kernel.h>
9 #include <linux/io.h>
10 
11 #include "clockdomain.h"
12 #include "prcm44xx.h"
13 #include "prcm43xx.h"
14 
15 static struct clockdomain l4_cefuse_43xx_clkdm = {
16 	.name		  = "l4_cefuse_clkdm",
17 	.pwrdm		  = { .name = "cefuse_pwrdm" },
18 	.prcm_partition	  = AM43XX_CM_PARTITION,
19 	.cm_inst	  = AM43XX_CM_CEFUSE_INST,
20 	.clkdm_offs	  = AM43XX_CM_CEFUSE_CEFUSE_CDOFFS,
21 	.flags		  = CLKDM_CAN_SWSUP,
22 };
23 
24 static struct clockdomain mpu_43xx_clkdm = {
25 	.name		  = "mpu_clkdm",
26 	.pwrdm		  = { .name = "mpu_pwrdm" },
27 	.prcm_partition	  = AM43XX_CM_PARTITION,
28 	.cm_inst	  = AM43XX_CM_MPU_INST,
29 	.clkdm_offs	  = AM43XX_CM_MPU_MPU_CDOFFS,
30 	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
31 };
32 
33 static struct clockdomain l4ls_43xx_clkdm = {
34 	.name		  = "l4ls_clkdm",
35 	.pwrdm		  = { .name = "per_pwrdm" },
36 	.prcm_partition	  = AM43XX_CM_PARTITION,
37 	.cm_inst	  = AM43XX_CM_PER_INST,
38 	.clkdm_offs	  = AM43XX_CM_PER_L4LS_CDOFFS,
39 	.flags		  = CLKDM_CAN_SWSUP,
40 };
41 
42 static struct clockdomain tamper_43xx_clkdm = {
43 	.name		  = "tamper_clkdm",
44 	.pwrdm		  = { .name = "tamper_pwrdm" },
45 	.prcm_partition	  = AM43XX_CM_PARTITION,
46 	.cm_inst	  = AM43XX_CM_TAMPER_INST,
47 	.clkdm_offs	  = AM43XX_CM_TAMPER_TAMPER_CDOFFS,
48 	.flags		  = CLKDM_CAN_SWSUP,
49 };
50 
51 static struct clockdomain l4_rtc_43xx_clkdm = {
52 	.name		  = "l4_rtc_clkdm",
53 	.pwrdm		  = { .name = "rtc_pwrdm" },
54 	.prcm_partition	  = AM43XX_CM_PARTITION,
55 	.cm_inst	  = AM43XX_CM_RTC_INST,
56 	.clkdm_offs	  = AM43XX_CM_RTC_RTC_CDOFFS,
57 	.flags		  = CLKDM_CAN_SWSUP,
58 };
59 
60 static struct clockdomain pruss_ocp_43xx_clkdm = {
61 	.name		  = "pruss_ocp_clkdm",
62 	.pwrdm		  = { .name = "per_pwrdm" },
63 	.prcm_partition	  = AM43XX_CM_PARTITION,
64 	.cm_inst	  = AM43XX_CM_PER_INST,
65 	.clkdm_offs	  = AM43XX_CM_PER_ICSS_CDOFFS,
66 	.flags		  = CLKDM_CAN_SWSUP,
67 };
68 
69 static struct clockdomain ocpwp_l3_43xx_clkdm = {
70 	.name		  = "ocpwp_l3_clkdm",
71 	.pwrdm		  = { .name = "per_pwrdm" },
72 	.prcm_partition	  = AM43XX_CM_PARTITION,
73 	.cm_inst	  = AM43XX_CM_PER_INST,
74 	.clkdm_offs	  = AM43XX_CM_PER_OCPWP_L3_CDOFFS,
75 	.flags		  = CLKDM_CAN_SWSUP,
76 };
77 
78 static struct clockdomain l3s_tsc_43xx_clkdm = {
79 	.name		  = "l3s_tsc_clkdm",
80 	.pwrdm		  = { .name = "wkup_pwrdm" },
81 	.prcm_partition	  = AM43XX_CM_PARTITION,
82 	.cm_inst	  = AM43XX_CM_WKUP_INST,
83 	.clkdm_offs	  = AM43XX_CM_WKUP_L3S_TSC_CDOFFS,
84 	.flags		  = CLKDM_CAN_SWSUP,
85 };
86 
87 static struct clockdomain lcdc_43xx_clkdm = {
88 	.name		  = "lcdc_clkdm",
89 	.pwrdm		  = { .name = "per_pwrdm" },
90 	.prcm_partition	  = AM43XX_CM_PARTITION,
91 	.cm_inst	  = AM43XX_CM_PER_INST,
92 	.clkdm_offs	  = AM43XX_CM_PER_LCDC_CDOFFS,
93 	.flags		  = CLKDM_CAN_SWSUP,
94 };
95 
96 static struct clockdomain dss_43xx_clkdm = {
97 	.name		  = "dss_clkdm",
98 	.pwrdm		  = { .name = "per_pwrdm" },
99 	.prcm_partition	  = AM43XX_CM_PARTITION,
100 	.cm_inst	  = AM43XX_CM_PER_INST,
101 	.clkdm_offs	  = AM43XX_CM_PER_DSS_CDOFFS,
102 	.flags		  = CLKDM_CAN_SWSUP,
103 };
104 
105 static struct clockdomain l3_aon_43xx_clkdm = {
106 	.name		  = "l3_aon_clkdm",
107 	.pwrdm		  = { .name = "wkup_pwrdm" },
108 	.prcm_partition	  = AM43XX_CM_PARTITION,
109 	.cm_inst	  = AM43XX_CM_WKUP_INST,
110 	.clkdm_offs	  = AM43XX_CM_WKUP_L3_AON_CDOFFS,
111 	.flags		  = CLKDM_CAN_SWSUP,
112 };
113 
114 static struct clockdomain emif_43xx_clkdm = {
115 	.name		  = "emif_clkdm",
116 	.pwrdm		  = { .name = "per_pwrdm" },
117 	.prcm_partition	  = AM43XX_CM_PARTITION,
118 	.cm_inst	  = AM43XX_CM_PER_INST,
119 	.clkdm_offs	  = AM43XX_CM_PER_EMIF_CDOFFS,
120 	.flags		  = CLKDM_CAN_SWSUP,
121 };
122 
123 static struct clockdomain l4_wkup_aon_43xx_clkdm = {
124 	.name		  = "l4_wkup_aon_clkdm",
125 	.pwrdm		  = { .name = "wkup_pwrdm" },
126 	.prcm_partition	  = AM43XX_CM_PARTITION,
127 	.cm_inst	  = AM43XX_CM_WKUP_INST,
128 	.clkdm_offs	  = AM43XX_CM_WKUP_L4_WKUP_AON_CDOFFS,
129 };
130 
131 static struct clockdomain l3_43xx_clkdm = {
132 	.name		  = "l3_clkdm",
133 	.pwrdm		  = { .name = "per_pwrdm" },
134 	.prcm_partition	  = AM43XX_CM_PARTITION,
135 	.cm_inst	  = AM43XX_CM_PER_INST,
136 	.clkdm_offs	  = AM43XX_CM_PER_L3_CDOFFS,
137 	.flags		  = CLKDM_CAN_SWSUP,
138 };
139 
140 static struct clockdomain l4_wkup_43xx_clkdm = {
141 	.name		  = "l4_wkup_clkdm",
142 	.pwrdm		  = { .name = "wkup_pwrdm" },
143 	.prcm_partition	  = AM43XX_CM_PARTITION,
144 	.cm_inst	  = AM43XX_CM_WKUP_INST,
145 	.clkdm_offs	  = AM43XX_CM_WKUP_WKUP_CDOFFS,
146 	.flags		  = CLKDM_CAN_SWSUP,
147 };
148 
149 static struct clockdomain cpsw_125mhz_43xx_clkdm = {
150 	.name		  = "cpsw_125mhz_clkdm",
151 	.pwrdm		  = { .name = "per_pwrdm" },
152 	.prcm_partition	  = AM43XX_CM_PARTITION,
153 	.cm_inst	  = AM43XX_CM_PER_INST,
154 	.clkdm_offs	  = AM43XX_CM_PER_CPSW_CDOFFS,
155 	.flags		  = CLKDM_CAN_SWSUP,
156 };
157 
158 static struct clockdomain gfx_l3_43xx_clkdm = {
159 	.name		  = "gfx_l3_clkdm",
160 	.pwrdm		  = { .name = "gfx_pwrdm" },
161 	.prcm_partition	  = AM43XX_CM_PARTITION,
162 	.cm_inst	  = AM43XX_CM_GFX_INST,
163 	.clkdm_offs	  = AM43XX_CM_GFX_GFX_L3_CDOFFS,
164 	.flags		  = CLKDM_CAN_SWSUP,
165 };
166 
167 static struct clockdomain l3s_43xx_clkdm = {
168 	.name		  = "l3s_clkdm",
169 	.pwrdm		  = { .name = "per_pwrdm" },
170 	.prcm_partition	  = AM43XX_CM_PARTITION,
171 	.cm_inst	  = AM43XX_CM_PER_INST,
172 	.clkdm_offs	  = AM43XX_CM_PER_L3S_CDOFFS,
173 	.flags		  = CLKDM_CAN_SWSUP,
174 };
175 
176 static struct clockdomain *clockdomains_am43xx[] __initdata = {
177 	&l4_cefuse_43xx_clkdm,
178 	&mpu_43xx_clkdm,
179 	&l4ls_43xx_clkdm,
180 	&tamper_43xx_clkdm,
181 	&l4_rtc_43xx_clkdm,
182 	&pruss_ocp_43xx_clkdm,
183 	&ocpwp_l3_43xx_clkdm,
184 	&l3s_tsc_43xx_clkdm,
185 	&lcdc_43xx_clkdm,
186 	&dss_43xx_clkdm,
187 	&l3_aon_43xx_clkdm,
188 	&emif_43xx_clkdm,
189 	&l4_wkup_aon_43xx_clkdm,
190 	&l3_43xx_clkdm,
191 	&l4_wkup_43xx_clkdm,
192 	&cpsw_125mhz_43xx_clkdm,
193 	&gfx_l3_43xx_clkdm,
194 	&l3s_43xx_clkdm,
195 	NULL
196 };
197 
am43xx_clockdomains_init(void)198 void __init am43xx_clockdomains_init(void)
199 {
200 	clkdm_register_platform_funcs(&am43xx_clkdm_operations);
201 	clkdm_register_clkdms(clockdomains_am43xx);
202 	clkdm_complete_init();
203 }
204