cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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voltagedomains44xx_data.c (3380B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * OMAP3/OMAP4 Voltage Management Routines
      4 *
      5 * Author: Thara Gopinath	<thara@ti.com>
      6 *
      7 * Copyright (C) 2007 Texas Instruments, Inc.
      8 * Rajendra Nayak <rnayak@ti.com>
      9 * Lesly A M <x0080970@ti.com>
     10 *
     11 * Copyright (C) 2008 Nokia Corporation
     12 * Kalle Jokiniemi
     13 *
     14 * Copyright (C) 2010 Texas Instruments, Inc.
     15 * Thara Gopinath <thara@ti.com>
     16 */
     17#include <linux/kernel.h>
     18#include <linux/err.h>
     19#include <linux/init.h>
     20
     21#include "common.h"
     22#include "soc.h"
     23#include "prm-regbits-44xx.h"
     24#include "prm44xx.h"
     25#include "prcm44xx.h"
     26#include "prminst44xx.h"
     27#include "voltage.h"
     28#include "omap_opp_data.h"
     29#include "vc.h"
     30#include "vp.h"
     31
     32static const struct omap_vfsm_instance omap4_vdd_mpu_vfsm = {
     33	.voltsetup_reg = OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET,
     34	.voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_MPU_OFF_OFFSET,
     35};
     36
     37static const struct omap_vfsm_instance omap4_vdd_iva_vfsm = {
     38	.voltsetup_reg = OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET,
     39	.voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_IVA_OFF_OFFSET,
     40};
     41
     42static const struct omap_vfsm_instance omap4_vdd_core_vfsm = {
     43	.voltsetup_reg = OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET,
     44	.voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_CORE_OFF_OFFSET,
     45};
     46
     47static 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
     58static 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
     69static 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
     80static struct voltagedomain omap4_voltdm_wkup = {
     81	.name = "wakeup",
     82};
     83
     84static 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
     92static const char *const sys_clk_name __initconst = "sys_clkin_ck";
     93
     94void __init omap44xx_voltagedomains_init(void)
     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	if (cpu_is_omap443x()) {
    105		omap4_voltdm_mpu.volt_data = omap443x_vdd_mpu_volt_data;
    106		omap4_voltdm_iva.volt_data = omap443x_vdd_iva_volt_data;
    107		omap4_voltdm_core.volt_data = omap443x_vdd_core_volt_data;
    108	} else if (cpu_is_omap446x()) {
    109		omap4_voltdm_mpu.volt_data = omap446x_vdd_mpu_volt_data;
    110		omap4_voltdm_iva.volt_data = omap446x_vdd_iva_volt_data;
    111		omap4_voltdm_core.volt_data = omap446x_vdd_core_volt_data;
    112	}
    113#endif
    114
    115	omap4_voltdm_mpu.vp_param = &omap4_mpu_vp_data;
    116	omap4_voltdm_iva.vp_param = &omap4_iva_vp_data;
    117	omap4_voltdm_core.vp_param = &omap4_core_vp_data;
    118
    119	omap4_voltdm_mpu.vc_param = &omap4_mpu_vc_data;
    120	omap4_voltdm_iva.vc_param = &omap4_iva_vc_data;
    121	omap4_voltdm_core.vc_param = &omap4_core_vc_data;
    122
    123	for (i = 0; voltdm = voltagedomains_omap4[i], voltdm; i++)
    124		voltdm->sys_clk.name = sys_clk_name;
    125
    126	voltdm_init(voltagedomains_omap4);
    127};