a5ffef6af1
At Tony's request, remove the omap_chip bitmasks from the clockdomain and clockdomain dependency definitions. Instead, initialize clockdomains based on one or more lists that are applicable to a particular SoC family, variant, and silicon revision. Tony Lindgren <tony@atomide.com> found a bug in a previous version of this patch - thanks Tony. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Tony Lindgren <tony@atomide.com>
398 lines
10 KiB
C
398 lines
10 KiB
C
/*
|
|
* OMAP3xxx 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/sleep
|
|
* dependencies for the OMAP3xxx chips. Some notes:
|
|
*
|
|
* A useful validation rule for struct clockdomain: Any clockdomain
|
|
* referenced by a wkdep_srcs or sleepdep_srcs array must have a
|
|
* dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really just
|
|
* software-controllable dependencies. Non-software-controllable
|
|
* dependencies do exist, but they are not encoded below (yet).
|
|
*
|
|
* 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 "clockdomain.h"
|
|
#include "prm2xxx_3xxx.h"
|
|
#include "cm2xxx_3xxx.h"
|
|
#include "cm-regbits-34xx.h"
|
|
#include "prm-regbits-34xx.h"
|
|
|
|
/*
|
|
* Clockdomain dependencies for wkdeps/sleepdeps
|
|
*
|
|
* XXX Hardware dependencies (e.g., dependencies that cannot be
|
|
* changed in software) are not included here yet, but should be.
|
|
*/
|
|
|
|
/* OMAP3-specific possible dependencies */
|
|
|
|
/*
|
|
* 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE
|
|
* 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE
|
|
*/
|
|
static struct clkdm_dep gfx_sgx_3xxx_wkdeps[] = {
|
|
{ .clkdm_name = "iva2_clkdm", },
|
|
{ .clkdm_name = "mpu_clkdm", },
|
|
{ .clkdm_name = "wkup_clkdm", },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430: PM_WKDEP_PER: CORE, IVA2, MPU, WKUP */
|
|
static struct clkdm_dep per_wkdeps[] = {
|
|
{ .clkdm_name = "core_l3_clkdm" },
|
|
{ .clkdm_name = "core_l4_clkdm" },
|
|
{ .clkdm_name = "iva2_clkdm" },
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "wkup_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430ES2: PM_WKDEP_USBHOST: CORE, IVA2, MPU, WKUP */
|
|
static struct clkdm_dep usbhost_wkdeps[] = {
|
|
{ .clkdm_name = "core_l3_clkdm" },
|
|
{ .clkdm_name = "core_l4_clkdm" },
|
|
{ .clkdm_name = "iva2_clkdm" },
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "wkup_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER */
|
|
static struct clkdm_dep mpu_3xxx_wkdeps[] = {
|
|
{ .clkdm_name = "core_l3_clkdm" },
|
|
{ .clkdm_name = "core_l4_clkdm" },
|
|
{ .clkdm_name = "iva2_clkdm" },
|
|
{ .clkdm_name = "dss_clkdm" },
|
|
{ .clkdm_name = "per_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER */
|
|
static struct clkdm_dep iva2_wkdeps[] = {
|
|
{ .clkdm_name = "core_l3_clkdm" },
|
|
{ .clkdm_name = "core_l4_clkdm" },
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "wkup_clkdm" },
|
|
{ .clkdm_name = "dss_clkdm" },
|
|
{ .clkdm_name = "per_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430 PM_WKDEP_CAM: IVA2, MPU, WKUP */
|
|
static struct clkdm_dep cam_wkdeps[] = {
|
|
{ .clkdm_name = "iva2_clkdm" },
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "wkup_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430 PM_WKDEP_DSS: IVA2, MPU, WKUP */
|
|
static struct clkdm_dep dss_wkdeps[] = {
|
|
{ .clkdm_name = "iva2_clkdm" },
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "wkup_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430: PM_WKDEP_NEON: MPU */
|
|
static struct clkdm_dep neon_wkdeps[] = {
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* Sleep dependency source arrays for OMAP3-specific clkdms */
|
|
|
|
/* 3430: CM_SLEEPDEP_DSS: MPU, IVA */
|
|
static struct clkdm_dep dss_sleepdeps[] = {
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "iva2_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430: CM_SLEEPDEP_PER: MPU, IVA */
|
|
static struct clkdm_dep per_sleepdeps[] = {
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "iva2_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA */
|
|
static struct clkdm_dep usbhost_sleepdeps[] = {
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ .clkdm_name = "iva2_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/* 3430: CM_SLEEPDEP_CAM: MPU */
|
|
static struct clkdm_dep cam_sleepdeps[] = {
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/*
|
|
* 3430ES1: CM_SLEEPDEP_GFX: MPU
|
|
* 3430ES2: CM_SLEEPDEP_SGX: MPU
|
|
* These can share data since they will never be present simultaneously
|
|
* on the same device.
|
|
*/
|
|
static struct clkdm_dep gfx_sgx_sleepdeps[] = {
|
|
{ .clkdm_name = "mpu_clkdm" },
|
|
{ NULL },
|
|
};
|
|
|
|
/*
|
|
* OMAP3 clockdomains
|
|
*/
|
|
|
|
static struct clockdomain mpu_3xxx_clkdm = {
|
|
.name = "mpu_clkdm",
|
|
.pwrdm = { .name = "mpu_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP,
|
|
.dep_bit = OMAP3430_EN_MPU_SHIFT,
|
|
.wkdep_srcs = mpu_3xxx_wkdeps,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK,
|
|
};
|
|
|
|
static struct clockdomain neon_clkdm = {
|
|
.name = "neon_clkdm",
|
|
.pwrdm = { .name = "neon_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.wkdep_srcs = neon_wkdeps,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK,
|
|
};
|
|
|
|
static struct clockdomain iva2_clkdm = {
|
|
.name = "iva2_clkdm",
|
|
.pwrdm = { .name = "iva2_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.dep_bit = OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT,
|
|
.wkdep_srcs = iva2_wkdeps,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK,
|
|
};
|
|
|
|
static struct clockdomain gfx_3430es1_clkdm = {
|
|
.name = "gfx_clkdm",
|
|
.pwrdm = { .name = "gfx_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.wkdep_srcs = gfx_sgx_3xxx_wkdeps,
|
|
.sleepdep_srcs = gfx_sgx_sleepdeps,
|
|
.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK,
|
|
};
|
|
|
|
static struct clockdomain sgx_clkdm = {
|
|
.name = "sgx_clkdm",
|
|
.pwrdm = { .name = "sgx_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.wkdep_srcs = gfx_sgx_3xxx_wkdeps,
|
|
.sleepdep_srcs = gfx_sgx_sleepdeps,
|
|
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK,
|
|
};
|
|
|
|
/*
|
|
* The die-to-die clockdomain was documented in the 34xx ES1 TRM, but
|
|
* then that information was removed from the 34xx ES2+ TRM. It is
|
|
* unclear whether the core is still there, but the clockdomain logic
|
|
* is there, and must be programmed to an appropriate state if the
|
|
* CORE clockdomain is to become inactive.
|
|
*/
|
|
static struct clockdomain d2d_clkdm = {
|
|
.name = "d2d_clkdm",
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_D2D_MASK,
|
|
};
|
|
|
|
/*
|
|
* XXX add usecounting for clkdm dependencies, otherwise the presence
|
|
* of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm
|
|
* could cause trouble
|
|
*/
|
|
static struct clockdomain core_l3_3xxx_clkdm = {
|
|
.name = "core_l3_clkdm",
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP,
|
|
.dep_bit = OMAP3430_EN_CORE_SHIFT,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK,
|
|
};
|
|
|
|
/*
|
|
* XXX add usecounting for clkdm dependencies, otherwise the presence
|
|
* of a single dep bit for core_l3_3xxx_clkdm and core_l4_3xxx_clkdm
|
|
* could cause trouble
|
|
*/
|
|
static struct clockdomain core_l4_3xxx_clkdm = {
|
|
.name = "core_l4_clkdm",
|
|
.pwrdm = { .name = "core_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP,
|
|
.dep_bit = OMAP3430_EN_CORE_SHIFT,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK,
|
|
};
|
|
|
|
/* Another case of bit name collisions between several registers: EN_DSS */
|
|
static struct clockdomain dss_3xxx_clkdm = {
|
|
.name = "dss_clkdm",
|
|
.pwrdm = { .name = "dss_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
|
|
.wkdep_srcs = dss_wkdeps,
|
|
.sleepdep_srcs = dss_sleepdeps,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK,
|
|
};
|
|
|
|
static struct clockdomain cam_clkdm = {
|
|
.name = "cam_clkdm",
|
|
.pwrdm = { .name = "cam_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.wkdep_srcs = cam_wkdeps,
|
|
.sleepdep_srcs = cam_sleepdeps,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK,
|
|
};
|
|
|
|
static struct clockdomain usbhost_clkdm = {
|
|
.name = "usbhost_clkdm",
|
|
.pwrdm = { .name = "usbhost_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.wkdep_srcs = usbhost_wkdeps,
|
|
.sleepdep_srcs = usbhost_sleepdeps,
|
|
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK,
|
|
};
|
|
|
|
static struct clockdomain per_clkdm = {
|
|
.name = "per_clkdm",
|
|
.pwrdm = { .name = "per_pwrdm" },
|
|
.flags = CLKDM_CAN_HWSUP_SWSUP,
|
|
.dep_bit = OMAP3430_EN_PER_SHIFT,
|
|
.wkdep_srcs = per_wkdeps,
|
|
.sleepdep_srcs = per_sleepdeps,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK,
|
|
};
|
|
|
|
/*
|
|
* Disable hw supervised mode for emu_clkdm, because emu_pwrdm is
|
|
* switched of even if sdti is in use
|
|
*/
|
|
static struct clockdomain emu_clkdm = {
|
|
.name = "emu_clkdm",
|
|
.pwrdm = { .name = "emu_pwrdm" },
|
|
.flags = /* CLKDM_CAN_ENABLE_AUTO | */CLKDM_CAN_SWSUP,
|
|
.clktrctrl_mask = OMAP3430_CLKTRCTRL_EMU_MASK,
|
|
};
|
|
|
|
static struct clockdomain dpll1_clkdm = {
|
|
.name = "dpll1_clkdm",
|
|
.pwrdm = { .name = "dpll1_pwrdm" },
|
|
};
|
|
|
|
static struct clockdomain dpll2_clkdm = {
|
|
.name = "dpll2_clkdm",
|
|
.pwrdm = { .name = "dpll2_pwrdm" },
|
|
};
|
|
|
|
static struct clockdomain dpll3_clkdm = {
|
|
.name = "dpll3_clkdm",
|
|
.pwrdm = { .name = "dpll3_pwrdm" },
|
|
};
|
|
|
|
static struct clockdomain dpll4_clkdm = {
|
|
.name = "dpll4_clkdm",
|
|
.pwrdm = { .name = "dpll4_pwrdm" },
|
|
};
|
|
|
|
static struct clockdomain dpll5_clkdm = {
|
|
.name = "dpll5_clkdm",
|
|
.pwrdm = { .name = "dpll5_pwrdm" },
|
|
};
|
|
|
|
/*
|
|
* Clockdomain hwsup dependencies
|
|
*/
|
|
|
|
static struct clkdm_autodep clkdm_autodeps[] = {
|
|
{
|
|
.clkdm = { .name = "mpu_clkdm" },
|
|
},
|
|
{
|
|
.clkdm = { .name = "iva2_clkdm" },
|
|
},
|
|
{
|
|
.clkdm = { .name = NULL },
|
|
}
|
|
};
|
|
|
|
/*
|
|
*
|
|
*/
|
|
|
|
static struct clockdomain *clockdomains_omap3430_common[] __initdata = {
|
|
&wkup_common_clkdm,
|
|
&cm_common_clkdm,
|
|
&prm_common_clkdm,
|
|
&mpu_3xxx_clkdm,
|
|
&neon_clkdm,
|
|
&iva2_clkdm,
|
|
&d2d_clkdm,
|
|
&core_l3_3xxx_clkdm,
|
|
&core_l4_3xxx_clkdm,
|
|
&dss_3xxx_clkdm,
|
|
&cam_clkdm,
|
|
&per_clkdm,
|
|
&emu_clkdm,
|
|
&dpll1_clkdm,
|
|
&dpll2_clkdm,
|
|
&dpll3_clkdm,
|
|
&dpll4_clkdm,
|
|
NULL
|
|
};
|
|
|
|
static struct clockdomain *clockdomains_omap3430es1[] __initdata = {
|
|
&gfx_3430es1_clkdm,
|
|
NULL,
|
|
};
|
|
|
|
static struct clockdomain *clockdomains_omap3430es2plus[] __initdata = {
|
|
&sgx_clkdm,
|
|
&dpll5_clkdm,
|
|
&usbhost_clkdm,
|
|
NULL,
|
|
};
|
|
|
|
void __init omap3xxx_clockdomains_init(void)
|
|
{
|
|
struct clockdomain **sc;
|
|
|
|
if (!cpu_is_omap34xx())
|
|
return;
|
|
|
|
clkdm_register_platform_funcs(&omap3_clkdm_operations);
|
|
clkdm_register_clkdms(clockdomains_omap3430_common);
|
|
|
|
sc = (omap_rev() == OMAP3430_REV_ES1_0) ? clockdomains_omap3430es1 :
|
|
clockdomains_omap3430es2plus;
|
|
|
|
clkdm_register_clkdms(sc);
|
|
|
|
clkdm_register_autodeps(clkdm_autodeps);
|
|
clkdm_complete_init();
|
|
}
|