1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * OMAP3 voltage domain data
4 *
5 * Copyright (C) 2007, 2010 Texas Instruments, Inc.
6 * Rajendra Nayak <rnayak@ti.com>
7 * Lesly A M <x0080970@ti.com>
8 * Thara Gopinath <thara@ti.com>
9 *
10 * Copyright (C) 2008, 2011 Nokia Corporation
11 * Kalle Jokiniemi
12 * Paul Walmsley
13 */
14 #include <linux/kernel.h>
15 #include <linux/err.h>
16 #include <linux/init.h>
17
18 #include "soc.h"
19 #include "common.h"
20 #include "prm-regbits-34xx.h"
21 #include "omap_opp_data.h"
22 #include "voltage.h"
23 #include "vc.h"
24 #include "vp.h"
25
26 /*
27 * VDD data
28 */
29
30 /* OMAP3-common voltagedomain data */
31
32 static struct voltagedomain omap3_voltdm_wkup = {
33 .name = "wakeup",
34 };
35
36 /* 34xx/36xx voltagedomain data */
37
38 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
39 .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
40 .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
41 };
42
43 static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
44 .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
45 .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
46 };
47
48 static struct voltagedomain omap3_voltdm_mpu = {
49 .name = "mpu_iva",
50 .scalable = true,
51 .read = omap3_prm_vcvp_read,
52 .write = omap3_prm_vcvp_write,
53 .rmw = omap3_prm_vcvp_rmw,
54 .vc = &omap3_vc_mpu,
55 .vfsm = &omap3_vdd1_vfsm,
56 .vp = &omap3_vp_mpu,
57 };
58
59 static struct voltagedomain omap3_voltdm_core = {
60 .name = "core",
61 .scalable = true,
62 .read = omap3_prm_vcvp_read,
63 .write = omap3_prm_vcvp_write,
64 .rmw = omap3_prm_vcvp_rmw,
65 .vc = &omap3_vc_core,
66 .vfsm = &omap3_vdd2_vfsm,
67 .vp = &omap3_vp_core,
68 };
69
70 static struct voltagedomain *voltagedomains_omap3[] __initdata = {
71 &omap3_voltdm_mpu,
72 &omap3_voltdm_core,
73 &omap3_voltdm_wkup,
74 NULL,
75 };
76
77 /* AM35xx voltagedomain data */
78
79 static struct voltagedomain am35xx_voltdm_mpu = {
80 .name = "mpu_iva",
81 };
82
83 static struct voltagedomain am35xx_voltdm_core = {
84 .name = "core",
85 };
86
87 static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
88 &am35xx_voltdm_mpu,
89 &am35xx_voltdm_core,
90 &omap3_voltdm_wkup,
91 NULL,
92 };
93
94
95 static const char *const sys_clk_name __initconst = "sys_ck";
96
omap3xxx_voltagedomains_init(void)97 void __init omap3xxx_voltagedomains_init(void)
98 {
99 struct voltagedomain *voltdm;
100 struct voltagedomain **voltdms;
101 int i;
102
103 /*
104 * XXX Will depend on the process, validation, and binning
105 * for the currently-running IC
106 */
107 #ifdef CONFIG_PM_OPP
108 if (cpu_is_omap3630()) {
109 omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data;
110 omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data;
111 } else {
112 omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data;
113 omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data;
114 }
115 #endif
116
117 omap3_voltdm_mpu.vp_param = &omap3_mpu_vp_data;
118 omap3_voltdm_core.vp_param = &omap3_core_vp_data;
119 omap3_voltdm_mpu.vc_param = &omap3_mpu_vc_data;
120 omap3_voltdm_core.vc_param = &omap3_core_vc_data;
121
122 if (soc_is_am35xx())
123 voltdms = voltagedomains_am35xx;
124 else
125 voltdms = voltagedomains_omap3;
126
127 for (i = 0; voltdm = voltdms[i], voltdm; i++)
128 voltdm->sys_clk.name = sys_clk_name;
129
130 voltdm_init(voltdms);
131 };
132