1 /*
2  * OMAP5 Voltage Management Routines
3  *
4  * Based on voltagedomains44xx_data.c
5  *
6  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  */
12 #include <linux/kernel.h>
13 #include <linux/err.h>
14 #include <linux/init.h>
15 
16 #include "common.h"
17 
18 #include "prm54xx.h"
19 #include "voltage.h"
20 #include "omap_opp_data.h"
21 #include "vc.h"
22 #include "vp.h"
23 
24 static const struct omap_vfsm_instance omap5_vdd_mpu_vfsm = {
25 	.voltsetup_reg = OMAP54XX_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET,
26 };
27 
28 static const struct omap_vfsm_instance omap5_vdd_mm_vfsm = {
29 	.voltsetup_reg = OMAP54XX_PRM_VOLTSETUP_MM_RET_SLEEP_OFFSET,
30 };
31 
32 static const struct omap_vfsm_instance omap5_vdd_core_vfsm = {
33 	.voltsetup_reg = OMAP54XX_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET,
34 };
35 
36 static struct voltagedomain omap5_voltdm_mpu = {
37 	.name = "mpu",
38 	.scalable = true,
39 	.read = omap4_prm_vcvp_read,
40 	.write = omap4_prm_vcvp_write,
41 	.rmw = omap4_prm_vcvp_rmw,
42 	.vc = &omap4_vc_mpu,
43 	.vfsm = &omap5_vdd_mpu_vfsm,
44 	.vp = &omap4_vp_mpu,
45 };
46 
47 static struct voltagedomain omap5_voltdm_mm = {
48 	.name = "mm",
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_iva,
54 	.vfsm = &omap5_vdd_mm_vfsm,
55 	.vp = &omap4_vp_iva,
56 };
57 
58 static struct voltagedomain omap5_voltdm_core = {
59 	.name = "core",
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_core,
65 	.vfsm = &omap5_vdd_core_vfsm,
66 	.vp = &omap4_vp_core,
67 };
68 
69 static struct voltagedomain omap5_voltdm_wkup = {
70 	.name = "wkup",
71 };
72 
73 static struct voltagedomain *voltagedomains_omap5[] __initdata = {
74 	&omap5_voltdm_mpu,
75 	&omap5_voltdm_mm,
76 	&omap5_voltdm_core,
77 	&omap5_voltdm_wkup,
78 	NULL,
79 };
80 
81 static const char *const sys_clk_name __initconst = "sys_clkin";
82 
83 void __init omap54xx_voltagedomains_init(void)
84 {
85 	struct voltagedomain *voltdm;
86 	int i;
87 
88 	for (i = 0; voltdm = voltagedomains_omap5[i], voltdm; i++)
89 		voltdm->sys_clk.name = sys_clk_name;
90 
91 	voltdm_init(voltagedomains_omap5);
92 };
93