1 /*
2 * OMAP3 voltage domain data
3 *
4 * Copyright (C) 2007, 2010 Texas Instruments, Inc.
5 * Rajendra Nayak <rnayak@ti.com>
6 * Lesly A M <x0080970@ti.com>
7 * Thara Gopinath <thara@ti.com>
8 *
9 * Copyright (C) 2008, 2011 Nokia Corporation
10 * Kalle Jokiniemi
11 * Paul Walmsley
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
16 */
17 #include <linux/kernel.h>
18 #include <linux/err.h>
19 #include <linux/init.h>
20
21 #include "common.h"
22 #include <plat/cpu.h>
23
24 #include "prm-regbits-34xx.h"
25 #include "omap_opp_data.h"
26 #include "voltage.h"
27 #include "vc.h"
28 #include "vp.h"
29
30 /*
31 * VDD data
32 */
33
34 /* OMAP3-common voltagedomain data */
35
36 static struct voltagedomain omap3_voltdm_wkup = {
37 .name = "wakeup",
38 };
39
40 /* 34xx/36xx voltagedomain data */
41
42 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
43 .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
44 .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
45 };
46
47 static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
48 .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
49 .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
50 };
51
52 static struct voltagedomain omap3_voltdm_mpu = {
53 .name = "mpu_iva",
54 .scalable = true,
55 .read = omap3_prm_vcvp_read,
56 .write = omap3_prm_vcvp_write,
57 .rmw = omap3_prm_vcvp_rmw,
58 .vc = &omap3_vc_mpu,
59 .vfsm = &omap3_vdd1_vfsm,
60 .vp = &omap3_vp_mpu,
61 };
62
63 static struct voltagedomain omap3_voltdm_core = {
64 .name = "core",
65 .scalable = true,
66 .read = omap3_prm_vcvp_read,
67 .write = omap3_prm_vcvp_write,
68 .rmw = omap3_prm_vcvp_rmw,
69 .vc = &omap3_vc_core,
70 .vfsm = &omap3_vdd2_vfsm,
71 .vp = &omap3_vp_core,
72 };
73
74 static struct voltagedomain *voltagedomains_omap3[] __initdata = {
75 &omap3_voltdm_mpu,
76 &omap3_voltdm_core,
77 &omap3_voltdm_wkup,
78 NULL,
79 };
80
81 /* AM35xx voltagedomain data */
82
83 static struct voltagedomain am35xx_voltdm_mpu = {
84 .name = "mpu_iva",
85 };
86
87 static struct voltagedomain am35xx_voltdm_core = {
88 .name = "core",
89 };
90
91 static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
92 &am35xx_voltdm_mpu,
93 &am35xx_voltdm_core,
94 &omap3_voltdm_wkup,
95 NULL,
96 };
97
98
99 static const char *sys_clk_name __initdata = "sys_ck";
100
omap3xxx_voltagedomains_init(void)101 void __init omap3xxx_voltagedomains_init(void)
102 {
103 struct voltagedomain *voltdm;
104 struct voltagedomain **voltdms;
105 int i;
106
107 /*
108 * XXX Will depend on the process, validation, and binning
109 * for the currently-running IC
110 */
111 #ifdef CONFIG_PM_OPP
112 if (cpu_is_omap3630()) {
113 omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data;
114 omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data;
115 } else {
116 omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data;
117 omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data;
118 }
119 #endif
120
121 if (cpu_is_omap3517() || cpu_is_omap3505())
122 voltdms = voltagedomains_am35xx;
123 else
124 voltdms = voltagedomains_omap3;
125
126 for (i = 0; voltdm = voltdms[i], voltdm; i++)
127 voltdm->sys_clk.name = sys_clk_name;
128
129 voltdm_init(voltdms);
130 };
131