1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * AM43xx Power domains framework
4 *
5 * Copyright (C) 2013 Texas Instruments, Inc.
6 */
7
8#include <linux/kernel.h>
9#include <linux/init.h>
10
11#include "powerdomain.h"
12
13#include "prcm-common.h"
14#include "prcm44xx.h"
15#include "prcm43xx.h"
16
17static struct powerdomain gfx_43xx_pwrdm = {
18	.name		  = "gfx_pwrdm",
19	.voltdm		  = { .name = "core" },
20	.prcm_offs	  = AM43XX_PRM_GFX_INST,
21	.prcm_partition	  = AM43XX_PRM_PARTITION,
22	.pwrsts		  = PWRSTS_OFF_ON,
23	.banks		  = 1,
24	.pwrsts_mem_on	= {
25		[0] = PWRSTS_ON,	/* gfx_mem */
26	},
27	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
28};
29
30static struct powerdomain mpu_43xx_pwrdm = {
31	.name		  = "mpu_pwrdm",
32	.voltdm		  = { .name = "mpu" },
33	.prcm_offs	  = AM43XX_PRM_MPU_INST,
34	.prcm_partition	  = AM43XX_PRM_PARTITION,
35	.pwrsts		  = PWRSTS_OFF_RET_ON,
36	.pwrsts_logic_ret = PWRSTS_OFF_RET,
37	.banks		  = 3,
38	.pwrsts_mem_ret	= {
39		[0] = PWRSTS_OFF_RET,	/* mpu_l1 */
40		[1] = PWRSTS_OFF_RET,	/* mpu_l2 */
41		[2] = PWRSTS_OFF_RET,	/* mpu_ram */
42	},
43	.pwrsts_mem_on	= {
44		[0] = PWRSTS_ON,	/* mpu_l1 */
45		[1] = PWRSTS_ON,	/* mpu_l2 */
46		[2] = PWRSTS_ON,	/* mpu_ram */
47	},
48	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
49};
50
51static struct powerdomain rtc_43xx_pwrdm = {
52	.name		  = "rtc_pwrdm",
53	.voltdm		  = { .name = "rtc" },
54	.prcm_offs	  = AM43XX_PRM_RTC_INST,
55	.prcm_partition	  = AM43XX_PRM_PARTITION,
56	.pwrsts		  = PWRSTS_ON,
57};
58
59static struct powerdomain wkup_43xx_pwrdm = {
60	.name		  = "wkup_pwrdm",
61	.voltdm		  = { .name = "core" },
62	.prcm_offs	  = AM43XX_PRM_WKUP_INST,
63	.prcm_partition	  = AM43XX_PRM_PARTITION,
64	.pwrsts		  = PWRSTS_ON,
65	.banks		  = 1,
66	.pwrsts_mem_on	= {
67		[0] = PWRSTS_ON,	/* debugss_mem */
68	},
69};
70
71static struct powerdomain tamper_43xx_pwrdm = {
72	.name		  = "tamper_pwrdm",
73	.voltdm		  = { .name = "tamper" },
74	.prcm_offs	  = AM43XX_PRM_TAMPER_INST,
75	.prcm_partition	  = AM43XX_PRM_PARTITION,
76	.pwrsts		  = PWRSTS_ON,
77};
78
79static struct powerdomain cefuse_43xx_pwrdm = {
80	.name		  = "cefuse_pwrdm",
81	.voltdm		  = { .name = "core" },
82	.prcm_offs	  = AM43XX_PRM_CEFUSE_INST,
83	.prcm_partition	  = AM43XX_PRM_PARTITION,
84	.pwrsts		  = PWRSTS_OFF_ON,
85	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
86};
87
88static struct powerdomain per_43xx_pwrdm = {
89	.name		  = "per_pwrdm",
90	.voltdm		  = { .name = "core" },
91	.prcm_offs	  = AM43XX_PRM_PER_INST,
92	.prcm_partition	  = AM43XX_PRM_PARTITION,
93	.pwrsts		  = PWRSTS_OFF_RET_ON,
94	.pwrsts_logic_ret = PWRSTS_OFF_RET,
95	.banks		  = 4,
96	.pwrsts_mem_ret	= {
97		[0] = PWRSTS_OFF_RET,	/* icss_mem */
98		[1] = PWRSTS_OFF_RET,	/* per_mem */
99		[2] = PWRSTS_OFF_RET,	/* ram1_mem */
100		[3] = PWRSTS_OFF_RET,	/* ram2_mem */
101	},
102	.pwrsts_mem_on	= {
103		[0] = PWRSTS_ON,	/* icss_mem */
104		[1] = PWRSTS_ON,	/* per_mem */
105		[2] = PWRSTS_ON,	/* ram1_mem */
106		[3] = PWRSTS_ON,	/* ram2_mem */
107	},
108	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
109};
110
111static struct powerdomain *powerdomains_am43xx[] __initdata = {
112	&gfx_43xx_pwrdm,
113	&mpu_43xx_pwrdm,
114	&rtc_43xx_pwrdm,
115	&wkup_43xx_pwrdm,
116	&tamper_43xx_pwrdm,
117	&cefuse_43xx_pwrdm,
118	&per_43xx_pwrdm,
119	NULL
120};
121
122static int am43xx_check_vcvp(void)
123{
124	return 0;
125}
126
127void __init am43xx_powerdomains_init(void)
128{
129	omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
130	pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
131	pwrdm_register_pwrdms(powerdomains_am43xx);
132	pwrdm_complete_init();
133}
134