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 | |
17 | static 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 | |
30 | static 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 | |
51 | static 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 | |
59 | static 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 | |
71 | static 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 | |
79 | static 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 | |
88 | static 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 | |
111 | static 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 | |
122 | static int am43xx_check_vcvp(void) |
123 | { |
124 | return 0; |
125 | } |
126 | |
127 | void __init am43xx_powerdomains_init(void) |
128 | { |
129 | omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp; |
130 | pwrdm_register_platform_funcs(custom_funcs: &omap4_pwrdm_operations); |
131 | pwrdm_register_pwrdms(pwrdm_list: powerdomains_am43xx); |
132 | pwrdm_complete_init(); |
133 | } |
134 | |