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voltagedomains44xx_data.c
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1 /*
2  * OMAP3/OMAP4 Voltage Management Routines
3  *
4  * Author: Thara Gopinath <[email protected]>
5  *
6  * Copyright (C) 2007 Texas Instruments, Inc.
7  * Rajendra Nayak <[email protected]>
8  * Lesly A M <[email protected]>
9  *
10  * Copyright (C) 2008 Nokia Corporation
11  * Kalle Jokiniemi
12  *
13  * Copyright (C) 2010 Texas Instruments, Inc.
14  * Thara Gopinath <[email protected]>
15  *
16  * This program is free software; you can redistribute it and/or modify
17  * it under the terms of the GNU General Public License version 2 as
18  * published by the Free Software Foundation.
19  */
20 #include <linux/kernel.h>
21 #include <linux/err.h>
22 #include <linux/init.h>
23 
24 #include "common.h"
25 
26 #include "prm-regbits-44xx.h"
27 #include "prm44xx.h"
28 #include "prcm44xx.h"
29 #include "prminst44xx.h"
30 #include "voltage.h"
31 #include "omap_opp_data.h"
32 #include "vc.h"
33 #include "vp.h"
34 
35 static const struct omap_vfsm_instance omap4_vdd_mpu_vfsm = {
37 };
38 
39 static const struct omap_vfsm_instance omap4_vdd_iva_vfsm = {
41 };
42 
43 static const struct omap_vfsm_instance omap4_vdd_core_vfsm = {
45 };
46 
47 static struct voltagedomain omap4_voltdm_mpu = {
48  .name = "mpu",
49  .scalable = true,
50  .read = omap4_prm_vcvp_read,
51  .write = omap4_prm_vcvp_write,
52  .rmw = omap4_prm_vcvp_rmw,
53  .vc = &omap4_vc_mpu,
54  .vfsm = &omap4_vdd_mpu_vfsm,
55  .vp = &omap4_vp_mpu,
56 };
57 
58 static struct voltagedomain omap4_voltdm_iva = {
59  .name = "iva",
60  .scalable = true,
61  .read = omap4_prm_vcvp_read,
62  .write = omap4_prm_vcvp_write,
63  .rmw = omap4_prm_vcvp_rmw,
64  .vc = &omap4_vc_iva,
65  .vfsm = &omap4_vdd_iva_vfsm,
66  .vp = &omap4_vp_iva,
67 };
68 
69 static struct voltagedomain omap4_voltdm_core = {
70  .name = "core",
71  .scalable = true,
72  .read = omap4_prm_vcvp_read,
73  .write = omap4_prm_vcvp_write,
74  .rmw = omap4_prm_vcvp_rmw,
75  .vc = &omap4_vc_core,
76  .vfsm = &omap4_vdd_core_vfsm,
77  .vp = &omap4_vp_core,
78 };
79 
80 static struct voltagedomain omap4_voltdm_wkup = {
81  .name = "wakeup",
82 };
83 
84 static struct voltagedomain *voltagedomains_omap4[] __initdata = {
85  &omap4_voltdm_mpu,
86  &omap4_voltdm_iva,
87  &omap4_voltdm_core,
88  &omap4_voltdm_wkup,
89  NULL,
90 };
91 
92 static const char *sys_clk_name __initdata = "sys_clkin_ck";
93 
95 {
96  struct voltagedomain *voltdm;
97  int i;
98 
99  /*
100  * XXX Will depend on the process, validation, and binning
101  * for the currently-running IC
102  */
103 #ifdef CONFIG_PM_OPP
104  omap4_voltdm_mpu.volt_data = omap44xx_vdd_mpu_volt_data;
105  omap4_voltdm_iva.volt_data = omap44xx_vdd_iva_volt_data;
106  omap4_voltdm_core.volt_data = omap44xx_vdd_core_volt_data;
107 #endif
108 
109  for (i = 0; voltdm = voltagedomains_omap4[i], voltdm; i++)
110  voltdm->sys_clk.name = sys_clk_name;
111 
112  voltdm_init(voltagedomains_omap4);
113 };