mirror of https://gitee.com/openkylin/linux.git
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/*
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* OMAP2/3 clockdomain common data
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*
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* Copyright (C) 2008-2011 Texas Instruments, Inc.
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* Copyright (C) 2008-2010 Nokia Corporation
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*
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* Paul Walmsley, Jouni Högander
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*
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* This file contains clockdomains and clockdomain wakeup/sleep
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* dependencies for the OMAP2/3 chips. Some notes:
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*
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* A useful validation rule for struct clockdomain: Any clockdomain
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* referenced by a wkdep_srcs or sleepdep_srcs array must have a
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* dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really just
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* software-controllable dependencies. Non-software-controllable
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* dependencies do exist, but they are not encoded below (yet).
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*
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* 24xx does not support programmable sleep dependencies (SLEEPDEP)
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*
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* The overly-specific dep_bit names are due to a bit name collision
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* with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
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* value are the same for all powerdomains: 2
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*
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* XXX should dep_bit be a mask, so we can test to see if it is 0 as a
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* sanity check?
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* XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
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*/
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/*
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* To-Do List
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* -> Port the Sleep/Wakeup dependencies for the domains
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* from the Power domain framework
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*/
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include "clockdomain.h"
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#include "prm2xxx_3xxx.h"
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#include "cm2xxx_3xxx.h"
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#include "cm-regbits-24xx.h"
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#include "cm-regbits-34xx.h"
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#include "cm-regbits-44xx.h"
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#include "prm-regbits-24xx.h"
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#include "prm-regbits-34xx.h"
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/*
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* Clockdomain dependencies for wkdeps/sleepdeps
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*
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* XXX Hardware dependencies (e.g., dependencies that cannot be
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* changed in software) are not included here yet, but should be.
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*/
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/* Wakeup dependency source arrays */
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/* 2xxx-specific possible dependencies */
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/* 2xxx PM_WKDEP_GFX: CORE, MPU, WKUP */
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struct clkdm_dep gfx_24xx_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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/* 2xxx PM_WKDEP_DSP: CORE, MPU, WKUP */
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struct clkdm_dep dsp_24xx_wkdeps[] = {
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{ .clkdm_name = "core_l3_clkdm" },
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{ .clkdm_name = "core_l4_clkdm" },
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{ .clkdm_name = "mpu_clkdm" },
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{ .clkdm_name = "wkup_clkdm" },
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{ NULL },
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};
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/*
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* OMAP2/3-common clockdomains
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*
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* Even though the 2420 has a single PRCM module from the
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* interconnect's perspective, internally it does appear to have
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* separate PRM and CM clockdomains. The usual test case is
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* sys_clkout/sys_clkout2.
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*/
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/* This is an implicit clockdomain - it is never defined as such in TRM */
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struct clockdomain wkup_common_clkdm = {
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.name = "wkup_clkdm",
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.pwrdm = { .name = "wkup_pwrdm" },
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.dep_bit = OMAP_EN_WKUP_SHIFT,
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};
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struct clockdomain prm_common_clkdm = {
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.name = "prm_clkdm",
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.pwrdm = { .name = "wkup_pwrdm" },
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};
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struct clockdomain cm_common_clkdm = {
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.name = "cm_clkdm",
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.pwrdm = { .name = "core_pwrdm" },
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};
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