voltagedomains3xxx_data.c

  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
 32static struct voltagedomain omap3_voltdm_wkup = {
 33	.name = "wakeup",
 34};
 35
 36/* 34xx/36xx voltagedomain data */
 37
 38static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
 39	.voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
 40	.voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
 41};
 42
 43static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
 44	.voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
 45	.voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
 46};
 47
 48static 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
 59static 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
 70static 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
 79static struct voltagedomain am35xx_voltdm_mpu = {
 80	.name = "mpu_iva",
 81};
 82
 83static struct voltagedomain am35xx_voltdm_core = {
 84	.name = "core",
 85};
 86
 87static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
 88	&am35xx_voltdm_mpu,
 89	&am35xx_voltdm_core,
 90	&omap3_voltdm_wkup,
 91	NULL,
 92};
 93
 94
 95static const char *const sys_clk_name __initconst = "sys_ck";
 96
 97void __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};