1/*
2 * OMAP3/OMAP4 Voltage Management Routines
3 *
4 * Author: Thara Gopinath	<thara@ti.com>
5 *
6 * Copyright (C) 2007 Texas Instruments, Inc.
7 * Rajendra Nayak <rnayak@ti.com>
8 * Lesly A M <x0080970@ti.com>
9 *
10 * Copyright (C) 2008 Nokia Corporation
11 * Kalle Jokiniemi
12 *
13 * Copyright (C) 2010 Texas Instruments, Inc.
14 * Thara Gopinath <thara@ti.com>
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#include "soc.h"
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
35static const struct omap_vfsm_instance omap4_vdd_mpu_vfsm = {
36	.voltsetup_reg = OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET,
37	.voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_MPU_OFF_OFFSET,
38};
39
40static const struct omap_vfsm_instance omap4_vdd_iva_vfsm = {
41	.voltsetup_reg = OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET,
42	.voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_IVA_OFF_OFFSET,
43};
44
45static const struct omap_vfsm_instance omap4_vdd_core_vfsm = {
46	.voltsetup_reg = OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET,
47	.voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_CORE_OFF_OFFSET,
48};
49
50static struct voltagedomain omap4_voltdm_mpu = {
51	.name = "mpu",
52	.scalable = true,
53	.read = omap4_prm_vcvp_read,
54	.write = omap4_prm_vcvp_write,
55	.rmw = omap4_prm_vcvp_rmw,
56	.vc = &omap4_vc_mpu,
57	.vfsm = &omap4_vdd_mpu_vfsm,
58	.vp = &omap4_vp_mpu,
59};
60
61static struct voltagedomain omap4_voltdm_iva = {
62	.name = "iva",
63	.scalable = true,
64	.read = omap4_prm_vcvp_read,
65	.write = omap4_prm_vcvp_write,
66	.rmw = omap4_prm_vcvp_rmw,
67	.vc = &omap4_vc_iva,
68	.vfsm = &omap4_vdd_iva_vfsm,
69	.vp = &omap4_vp_iva,
70};
71
72static struct voltagedomain omap4_voltdm_core = {
73	.name = "core",
74	.scalable = true,
75	.read = omap4_prm_vcvp_read,
76	.write = omap4_prm_vcvp_write,
77	.rmw = omap4_prm_vcvp_rmw,
78	.vc = &omap4_vc_core,
79	.vfsm = &omap4_vdd_core_vfsm,
80	.vp = &omap4_vp_core,
81};
82
83static struct voltagedomain omap4_voltdm_wkup = {
84	.name = "wakeup",
85};
86
87static struct voltagedomain *voltagedomains_omap4[] __initdata = {
88	&omap4_voltdm_mpu,
89	&omap4_voltdm_iva,
90	&omap4_voltdm_core,
91	&omap4_voltdm_wkup,
92	NULL,
93};
94
95static const char *const sys_clk_name __initconst = "sys_clkin_ck";
96
97void __init omap44xx_voltagedomains_init(void)
98{
99	struct voltagedomain *voltdm;
100	int i;
101
102	/*
103	 * XXX Will depend on the process, validation, and binning
104	 * for the currently-running IC
105	 */
106#ifdef CONFIG_PM_OPP
107	if (cpu_is_omap443x()) {
108		omap4_voltdm_mpu.volt_data = omap443x_vdd_mpu_volt_data;
109		omap4_voltdm_iva.volt_data = omap443x_vdd_iva_volt_data;
110		omap4_voltdm_core.volt_data = omap443x_vdd_core_volt_data;
111	} else if (cpu_is_omap446x()) {
112		omap4_voltdm_mpu.volt_data = omap446x_vdd_mpu_volt_data;
113		omap4_voltdm_iva.volt_data = omap446x_vdd_iva_volt_data;
114		omap4_voltdm_core.volt_data = omap446x_vdd_core_volt_data;
115	}
116#endif
117
118	omap4_voltdm_mpu.vp_param = &omap4_mpu_vp_data;
119	omap4_voltdm_iva.vp_param = &omap4_iva_vp_data;
120	omap4_voltdm_core.vp_param = &omap4_core_vp_data;
121
122	omap4_voltdm_mpu.vc_param = &omap4_mpu_vc_data;
123	omap4_voltdm_iva.vc_param = &omap4_iva_vc_data;
124	omap4_voltdm_core.vc_param = &omap4_core_vc_data;
125
126	for (i = 0; voltdm = voltagedomains_omap4[i], voltdm; i++)
127		voltdm->sys_clk.name = sys_clk_name;
128
129	voltdm_init(voltagedomains_omap4);
130};
131