153 lines
4 KiB
C
153 lines
4 KiB
C
/*
|
|
* OMAP2420 clockdomains
|
|
*
|
|
* Copyright (C) 2008-2011 Texas Instruments, Inc.
|
|
* Copyright (C) 2008-2010 Nokia Corporation
|
|
*
|
|
* Paul Walmsley, Jouni Högander
|
|
*
|
|
* This file contains clockdomains and clockdomain wakeup dependencies
|
|
* for OMAP2420 chips. Some notes:
|
|
*
|
|
* A useful validation rule for struct clockdomain: Any clockdomain
|
|
* referenced by a wkdep_srcs must have a dep_bit assigned. So
|
|
* wkdep_srcs are really just software-controllable dependencies.
|
|
* Non-software-controllable dependencies do exist, but they are not
|
|
* encoded below (yet).
|
|
*
|
|
* 24xx does not support programmable sleep dependencies (SLEEPDEP)
|
|
*
|
|
* The overly-specific dep_bit names are due to a bit name collision
|
|
* with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift
|
|
* value are the same for all powerdomains: 2
|
|
*
|
|
* XXX should dep_bit be a mask, so we can test to see if it is 0 as a
|
|
* sanity check?
|
|
* XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE
|
|
*/
|
|
|
|
/*
|
|
* To-Do List
|
|
* -> Port the Sleep/Wakeup dependencies for the domains
|
|
* from the Power domain framework
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/io.h>
|
|
|
|
#include "soc.h"
|
|
#include "clockdomain.h"
|
|
#include "prm2xxx_3xxx.h"
|
|
#include "cm2xxx_3xxx.h"
|
|
#include "cm-regbits-24xx.h"
|
|
#include "prm-regbits-24xx.h"
|
|
|
|
/*
|
|
* Clockdomain dependencies for wkdeps
|
|
*
|
|
* XXX Hardware dependencies (e.g., dependencies that cannot be
|
|
* changed in software) are not included here yet, but should be.
|
|
*/
|
|
|
|
/* Wakeup dependency source arrays */
|
|
|
|
/* 2420-specific possible wakeup dependencies */
|
|
|
|
/* 2420 PM_WKDEP_MPU: CORE, DSP, WKUP */
|
|
static struct clkdm_dep mpu_2420_wkdeps[] = {
|
|
{ .clkdm_name = "core_l3_clkdm" },
|
|
{ .clkdm_name = "core_l4_clkdm" },
|
|
{ .clkdm_name = "dsp_clkdm" },
|
|
{ .clkdm_name = "wkup_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 2420 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP */
|
|
static struct clkdm_dep core_2420_wkdeps[] = {
|
|
{ .clkdm_name = "dsp_clkdm" },
|
|
{ .clkdm_name = "gfx_clkdm" },
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "wkup_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/*
|
|
* 2420-only clockdomains
|
|
*/
|
|
|
|
static struct clockdomain mpu_2420_clkdm = {
|
|
.name = "mpu_clkdm",
|
|
.pwrdm = { .name = "mpu_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP,
|
|
.wkdep_srcs = mpu_2420_wkdeps,
|
|
.clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK,
|
|
};
|
|
|
|
static struct clockdomain iva1_2420_clkdm = {
|
|
.name = "iva1_clkdm",
|
|
.pwrdm = { .name = "dsp_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
|
|
.wkdep_srcs = dsp_24xx_wkdeps,
|
|
.clktrctrl_mask = OMAP2420_AUTOSTATE_IVA_MASK,
|
|
};
|
|
|
|
static struct clockdomain dsp_2420_clkdm = {
|
|
.name = "dsp_clkdm",
|
|
.pwrdm = { .name = "dsp_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK,
|
|
};
|
|
|
|
static struct clockdomain gfx_2420_clkdm = {
|
|
.name = "gfx_clkdm",
|
|
.pwrdm = { .name = "gfx_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.wkdep_srcs = gfx_24xx_wkdeps,
|
|
.clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK,
|
|
};
|
|
|
|
static struct clockdomain core_l3_2420_clkdm = {
|
|
.name = "core_l3_clkdm",
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP,
|
|
.wkdep_srcs = core_2420_wkdeps,
|
|
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK,
|
|
};
|
|
|
|
static struct clockdomain core_l4_2420_clkdm = {
|
|
.name = "core_l4_clkdm",
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP,
|
|
.wkdep_srcs = core_2420_wkdeps,
|
|
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK,
|
|
};
|
|
|
|
static struct clockdomain dss_2420_clkdm = {
|
|
.name = "dss_clkdm",
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP,
|
|
.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK,
|
|
};
|
|
|
|
static struct clockdomain *clockdomains_omap242x[] __initdata = {
|
|
&wkup_common_clkdm,
|
|
&mpu_2420_clkdm,
|
|
&iva1_2420_clkdm,
|
|
&dsp_2420_clkdm,
|
|
&gfx_2420_clkdm,
|
|
&core_l3_2420_clkdm,
|
|
&core_l4_2420_clkdm,
|
|
&dss_2420_clkdm,
|
|
NULL,
|
|
};
|
|
|
|
void __init omap242x_clockdomains_init(void)
|
|
{
|
|
if (!cpu_is_omap242x())
|
|
return;
|
|
|
|
clkdm_register_platform_funcs(&omap2_clkdm_operations);
|
|
clkdm_register_clkdms(clockdomains_omap242x);
|
|
clkdm_complete_init();
|
|
}
|