1 /*
2  * AM33XX Power domain data
3  *
4  * Copyright (C) 2011-2012 Texas Instruments Incorporated - https://www.ti.com/
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation version 2.
9  *
10  * This program is distributed "as is" WITHOUT ANY WARRANTY of any
11  * kind, whether express or implied; without even the implied warranty
12  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  */
15 
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 
19 #include "powerdomain.h"
20 #include "prcm-common.h"
21 #include "prm-regbits-33xx.h"
22 #include "prm33xx.h"
23 
24 static struct powerdomain gfx_33xx_pwrdm = {
25 	.name			= "gfx_pwrdm",
26 	.voltdm			= { .name = "core" },
27 	.prcm_offs		= AM33XX_PRM_GFX_MOD,
28 	.pwrstctrl_offs		= AM33XX_PM_GFX_PWRSTCTRL_OFFSET,
29 	.pwrstst_offs		= AM33XX_PM_GFX_PWRSTST_OFFSET,
30 	.pwrsts			= PWRSTS_OFF_RET_ON,
31 	.pwrsts_logic_ret	= PWRSTS_OFF_RET,
32 	.flags			= PWRDM_HAS_LOWPOWERSTATECHANGE,
33 	.banks			= 1,
34 	.logicretstate_mask	= AM33XX_LOGICRETSTATE_MASK,
35 	.mem_on_mask		= {
36 		[0]		= AM33XX_GFX_MEM_ONSTATE_MASK,	/* gfx_mem */
37 	},
38 	.mem_ret_mask		= {
39 		[0]		= AM33XX_GFX_MEM_RETSTATE_MASK,	/* gfx_mem */
40 	},
41 	.mem_pwrst_mask		= {
42 		[0]		= AM33XX_GFX_MEM_STATEST_MASK,	/* gfx_mem */
43 	},
44 	.mem_retst_mask		= {
45 		[0]		= AM33XX_GFX_MEM_RETSTATE_MASK,	/* gfx_mem */
46 	},
47 	.pwrsts_mem_ret		= {
48 		[0]		= PWRSTS_OFF_RET,	/* gfx_mem */
49 	},
50 	.pwrsts_mem_on		= {
51 		[0]		= PWRSTS_ON,		/* gfx_mem */
52 	},
53 };
54 
55 static struct powerdomain rtc_33xx_pwrdm = {
56 	.name			= "rtc_pwrdm",
57 	.voltdm			= { .name = "rtc" },
58 	.prcm_offs		= AM33XX_PRM_RTC_MOD,
59 	.pwrstctrl_offs		= AM33XX_PM_RTC_PWRSTCTRL_OFFSET,
60 	.pwrstst_offs		= AM33XX_PM_RTC_PWRSTST_OFFSET,
61 	.pwrsts			= PWRSTS_ON,
62 	.logicretstate_mask	= AM33XX_LOGICRETSTATE_MASK,
63 };
64 
65 static struct powerdomain wkup_33xx_pwrdm = {
66 	.name			= "wkup_pwrdm",
67 	.voltdm			= { .name = "core" },
68 	.prcm_offs		= AM33XX_PRM_WKUP_MOD,
69 	.pwrstctrl_offs		= AM33XX_PM_WKUP_PWRSTCTRL_OFFSET,
70 	.pwrstst_offs		= AM33XX_PM_WKUP_PWRSTST_OFFSET,
71 	.pwrsts			= PWRSTS_ON,
72 	.logicretstate_mask	= AM33XX_LOGICRETSTATE_3_3_MASK,
73 };
74 
75 static struct powerdomain per_33xx_pwrdm = {
76 	.name			= "per_pwrdm",
77 	.voltdm			= { .name = "core" },
78 	.prcm_offs		= AM33XX_PRM_PER_MOD,
79 	.pwrstctrl_offs		= AM33XX_PM_PER_PWRSTCTRL_OFFSET,
80 	.pwrstst_offs		= AM33XX_PM_PER_PWRSTST_OFFSET,
81 	.pwrsts			= PWRSTS_OFF_RET_ON,
82 	.pwrsts_logic_ret	= PWRSTS_OFF_RET,
83 	.flags			= PWRDM_HAS_LOWPOWERSTATECHANGE,
84 	.banks			= 3,
85 	.logicretstate_mask	= AM33XX_LOGICRETSTATE_3_3_MASK,
86 	.mem_on_mask		= {
87 		[0]		= AM33XX_PRUSS_MEM_ONSTATE_MASK, /* pruss_mem */
88 		[1]		= AM33XX_PER_MEM_ONSTATE_MASK,	/* per_mem */
89 		[2]		= AM33XX_RAM_MEM_ONSTATE_MASK,	/* ram_mem */
90 	},
91 	.mem_ret_mask		= {
92 		[0]		= AM33XX_PRUSS_MEM_RETSTATE_MASK, /* pruss_mem */
93 		[1]		= AM33XX_PER_MEM_RETSTATE_MASK,	/* per_mem */
94 		[2]		= AM33XX_RAM_MEM_RETSTATE_MASK,	/* ram_mem */
95 	},
96 	.mem_pwrst_mask		= {
97 		[0]		= AM33XX_PRUSS_MEM_STATEST_MASK, /* pruss_mem */
98 		[1]		= AM33XX_PER_MEM_STATEST_MASK,	/* per_mem */
99 		[2]		= AM33XX_RAM_MEM_STATEST_MASK,	/* ram_mem */
100 	},
101 	.mem_retst_mask		= {
102 		[0]		= AM33XX_PRUSS_MEM_RETSTATE_MASK, /* pruss_mem */
103 		[1]		= AM33XX_PER_MEM_RETSTATE_MASK,	/* per_mem */
104 		[2]		= AM33XX_RAM_MEM_RETSTATE_MASK,	/* ram_mem */
105 	},
106 	.pwrsts_mem_ret		= {
107 		[0]		= PWRSTS_OFF_RET,	/* pruss_mem */
108 		[1]		= PWRSTS_OFF_RET,	/* per_mem */
109 		[2]		= PWRSTS_OFF_RET,	/* ram_mem */
110 	},
111 	.pwrsts_mem_on		= {
112 		[0]		= PWRSTS_ON,		/* pruss_mem */
113 		[1]		= PWRSTS_ON,		/* per_mem */
114 		[2]		= PWRSTS_ON,		/* ram_mem */
115 	},
116 };
117 
118 static struct powerdomain mpu_33xx_pwrdm = {
119 	.name			= "mpu_pwrdm",
120 	.voltdm			= { .name = "mpu" },
121 	.prcm_offs		= AM33XX_PRM_MPU_MOD,
122 	.pwrstctrl_offs		= AM33XX_PM_MPU_PWRSTCTRL_OFFSET,
123 	.pwrstst_offs		= AM33XX_PM_MPU_PWRSTST_OFFSET,
124 	.pwrsts			= PWRSTS_OFF_RET_ON,
125 	.pwrsts_logic_ret	= PWRSTS_OFF_RET,
126 	.flags			= PWRDM_HAS_LOWPOWERSTATECHANGE,
127 	.banks			= 3,
128 	.logicretstate_mask	= AM33XX_LOGICRETSTATE_MASK,
129 	.mem_on_mask		= {
130 		[0]		= AM33XX_MPU_L1_ONSTATE_MASK,	/* mpu_l1 */
131 		[1]		= AM33XX_MPU_L2_ONSTATE_MASK,	/* mpu_l2 */
132 		[2]		= AM33XX_MPU_RAM_ONSTATE_MASK,	/* mpu_ram */
133 	},
134 	.mem_ret_mask		= {
135 		[0]		= AM33XX_MPU_L1_RETSTATE_MASK,	/* mpu_l1 */
136 		[1]		= AM33XX_MPU_L2_RETSTATE_MASK,	/* mpu_l2 */
137 		[2]		= AM33XX_MPU_RAM_RETSTATE_MASK,	/* mpu_ram */
138 	},
139 	.mem_pwrst_mask		= {
140 		[0]		= AM33XX_MPU_L1_STATEST_MASK,	/* mpu_l1 */
141 		[1]		= AM33XX_MPU_L2_STATEST_MASK,	/* mpu_l2 */
142 		[2]		= AM33XX_MPU_RAM_STATEST_MASK,	/* mpu_ram */
143 	},
144 	.mem_retst_mask		= {
145 		[0]		= AM33XX_MPU_L1_RETSTATE_MASK,	/* mpu_l1 */
146 		[1]		= AM33XX_MPU_L2_RETSTATE_MASK,	/* mpu_l2 */
147 		[2]		= AM33XX_MPU_RAM_RETSTATE_MASK,	/* mpu_ram */
148 	},
149 	.pwrsts_mem_ret		= {
150 		[0]		= PWRSTS_OFF_RET,	/* mpu_l1 */
151 		[1]		= PWRSTS_OFF_RET,	/* mpu_l2 */
152 		[2]		= PWRSTS_OFF_RET,	/* mpu_ram */
153 	},
154 	.pwrsts_mem_on		= {
155 		[0]		= PWRSTS_ON,		/* mpu_l1 */
156 		[1]		= PWRSTS_ON,		/* mpu_l2 */
157 		[2]		= PWRSTS_ON,		/* mpu_ram */
158 	},
159 };
160 
161 static struct powerdomain cefuse_33xx_pwrdm = {
162 	.name		= "cefuse_pwrdm",
163 	.voltdm		= { .name = "core" },
164 	.prcm_offs	= AM33XX_PRM_CEFUSE_MOD,
165 	.pwrstctrl_offs	= AM33XX_PM_CEFUSE_PWRSTCTRL_OFFSET,
166 	.pwrstst_offs	= AM33XX_PM_CEFUSE_PWRSTST_OFFSET,
167 	.pwrsts		= PWRSTS_OFF_ON,
168 };
169 
170 static struct powerdomain *powerdomains_am33xx[] __initdata = {
171 	&gfx_33xx_pwrdm,
172 	&rtc_33xx_pwrdm,
173 	&wkup_33xx_pwrdm,
174 	&per_33xx_pwrdm,
175 	&mpu_33xx_pwrdm,
176 	&cefuse_33xx_pwrdm,
177 	NULL,
178 };
179 
am33xx_powerdomains_init(void)180 void __init am33xx_powerdomains_init(void)
181 {
182 	pwrdm_register_platform_funcs(&am33xx_pwrdm_operations);
183 	pwrdm_register_pwrdms(powerdomains_am33xx);
184 	pwrdm_complete_init();
185 }
186