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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clockdomains2xxx_3xxx_data.c (2718B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * OMAP2/3 clockdomain common data
      4 *
      5 * Copyright (C) 2008-2011 Texas Instruments, Inc.
      6 * Copyright (C) 2008-2010 Nokia Corporation
      7 *
      8 * Paul Walmsley, Jouni Högander
      9 *
     10 * This file contains clockdomains and clockdomain wakeup/sleep
     11 * dependencies for the OMAP2/3 chips.  Some notes:
     12 *
     13 * A useful validation rule for struct clockdomain: Any clockdomain
     14 * referenced by a wkdep_srcs or sleepdep_srcs array must have a
     15 * dep_bit assigned.  So wkdep_srcs/sleepdep_srcs are really just
     16 * software-controllable dependencies.  Non-software-controllable
     17 * dependencies do exist, but they are not encoded below (yet).
     18 *
     19 * 24xx does not support programmable sleep dependencies (SLEEPDEP)
     20 *
     21 * The overly-specific dep_bit names are due to a bit name collision
     22 * with CM_FCLKEN_{DSP,IVA2}.  The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
     23 * value are the same for all powerdomains: 2
     24 *
     25 * XXX should dep_bit be a mask, so we can test to see if it is 0 as a
     26 * sanity check?
     27 * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
     28 */
     29
     30/*
     31 * To-Do List
     32 * -> Port the Sleep/Wakeup dependencies for the domains
     33 *    from the Power domain framework
     34 */
     35
     36#include <linux/kernel.h>
     37#include <linux/io.h>
     38
     39#include "clockdomain.h"
     40#include "prm2xxx_3xxx.h"
     41#include "cm2xxx_3xxx.h"
     42#include "cm-regbits-24xx.h"
     43#include "cm-regbits-34xx.h"
     44#include "cm-regbits-44xx.h"
     45#include "prm-regbits-24xx.h"
     46#include "prm-regbits-34xx.h"
     47
     48/*
     49 * Clockdomain dependencies for wkdeps/sleepdeps
     50 *
     51 * XXX Hardware dependencies (e.g., dependencies that cannot be
     52 * changed in software) are not included here yet, but should be.
     53 */
     54
     55/* Wakeup dependency source arrays */
     56
     57/* 2xxx-specific possible dependencies */
     58
     59/* 2xxx PM_WKDEP_GFX: CORE, MPU, WKUP */
     60struct clkdm_dep gfx_24xx_wkdeps[] = {
     61	{ .clkdm_name = "core_l3_clkdm" },
     62	{ .clkdm_name = "core_l4_clkdm" },
     63	{ .clkdm_name = "mpu_clkdm" },
     64	{ .clkdm_name = "wkup_clkdm" },
     65	{ NULL },
     66};
     67
     68/* 2xxx PM_WKDEP_DSP: CORE, MPU, WKUP */
     69struct clkdm_dep dsp_24xx_wkdeps[] = {
     70	{ .clkdm_name = "core_l3_clkdm" },
     71	{ .clkdm_name = "core_l4_clkdm" },
     72	{ .clkdm_name = "mpu_clkdm" },
     73	{ .clkdm_name = "wkup_clkdm" },
     74	{ NULL },
     75};
     76
     77
     78/*
     79 * OMAP2/3-common clockdomains
     80 *
     81 * Even though the 2420 has a single PRCM module from the
     82 * interconnect's perspective, internally it does appear to have
     83 * separate PRM and CM clockdomains.  The usual test case is
     84 * sys_clkout/sys_clkout2.
     85 */
     86
     87/* This is an implicit clockdomain - it is never defined as such in TRM */
     88struct clockdomain wkup_common_clkdm = {
     89	.name		= "wkup_clkdm",
     90	.pwrdm		= { .name = "wkup_pwrdm" },
     91	.dep_bit	= OMAP_EN_WKUP_SHIFT,
     92	.flags		= CLKDM_ACTIVE_WITH_MPU,
     93};