arm/mach-omap2/voltagedomains3xxx_data.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * OMAP3 voltage domain data
0004  *
0005  * Copyright (C) 2007, 2010 Texas Instruments, Inc.
0006  * Rajendra Nayak <rnayak@ti.com>
0007  * Lesly A M <x0080970@ti.com>
0008  * Thara Gopinath <thara@ti.com>
0009  *
0010  * Copyright (C) 2008, 2011 Nokia Corporation
0011  * Kalle Jokiniemi
0012  * Paul Walmsley
0013  */
0014 #include <linux/kernel.h>
0015 #include <linux/err.h>
0016 #include <linux/init.h>
0017
0018 #include "soc.h"
0019 #include "common.h"
0020 #include "prm-regbits-34xx.h"
0021 #include "omap_opp_data.h"
0022 #include "voltage.h"
0023 #include "vc.h"
0024 #include "vp.h"
0025
0026 /*
0027  * VDD data
0028  */
0029
0030 /* OMAP3-common voltagedomain data */
0031
0032 static struct voltagedomain omap3_voltdm_wkup = {
0033     .name = "wakeup",
0034 };
0035
0036 /* 34xx/36xx voltagedomain data */
0037
0038 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
0039     .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
0040     .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
0041 };
0042
0043 static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
0044     .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
0045     .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
0046 };
0047
0048 static struct voltagedomain omap3_voltdm_mpu = {
0049     .name = "mpu_iva",
0050     .scalable = true,
0051     .read = omap3_prm_vcvp_read,
0052     .write = omap3_prm_vcvp_write,
0053     .rmw = omap3_prm_vcvp_rmw,
0054     .vc = &omap3_vc_mpu,
0055     .vfsm = &omap3_vdd1_vfsm,
0056     .vp = &omap3_vp_mpu,
0057 };
0058
0059 static struct voltagedomain omap3_voltdm_core = {
0060     .name = "core",
0061     .scalable = true,
0062     .read = omap3_prm_vcvp_read,
0063     .write = omap3_prm_vcvp_write,
0064     .rmw = omap3_prm_vcvp_rmw,
0065     .vc = &omap3_vc_core,
0066     .vfsm = &omap3_vdd2_vfsm,
0067     .vp = &omap3_vp_core,
0068 };
0069
0070 static struct voltagedomain *voltagedomains_omap3[] __initdata = {
0071     &omap3_voltdm_mpu,
0072     &omap3_voltdm_core,
0073     &omap3_voltdm_wkup,
0074     NULL,
0075 };
0076
0077 /* AM35xx voltagedomain data */
0078
0079 static struct voltagedomain am35xx_voltdm_mpu = {
0080     .name = "mpu_iva",
0081 };
0082
0083 static struct voltagedomain am35xx_voltdm_core = {
0084     .name = "core",
0085 };
0086
0087 static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
0088     &am35xx_voltdm_mpu,
0089     &am35xx_voltdm_core,
0090     &omap3_voltdm_wkup,
0091     NULL,
0092 };
0093
0094
0095 static const char *const sys_clk_name __initconst = "sys_ck";
0096
0097 void __init omap3xxx_voltagedomains_init(void)
0098 {
0099     struct voltagedomain *voltdm;
0100     struct voltagedomain **voltdms;
0101     int i;
0102
0103     /*
0104      * XXX Will depend on the process, validation, and binning
0105      * for the currently-running IC
0106      */
0107 #ifdef CONFIG_PM_OPP
0108     if (cpu_is_omap3630()) {
0109         omap3_voltdm_mpu.volt_data = omap36xx_vddmpu_volt_data;
0110         omap3_voltdm_core.volt_data = omap36xx_vddcore_volt_data;
0111     } else {
0112         omap3_voltdm_mpu.volt_data = omap34xx_vddmpu_volt_data;
0113         omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data;
0114     }
0115 #endif
0116
0117     omap3_voltdm_mpu.vp_param = &omap3_mpu_vp_data;
0118     omap3_voltdm_core.vp_param = &omap3_core_vp_data;
0119     omap3_voltdm_mpu.vc_param = &omap3_mpu_vc_data;
0120     omap3_voltdm_core.vc_param = &omap3_core_vc_data;
0121
0122     if (soc_is_am35xx())
0123         voltdms = voltagedomains_am35xx;
0124     else
0125         voltdms = voltagedomains_omap3;
0126
0127     for (i = 0; voltdm = voltdms[i], voltdm; i++)
0128         voltdm->sys_clk.name = sys_clk_name;
0129
0130     voltdm_init(voltdms);
0131 };