#include <linux/bitops.h>
-#include <plat/clock.h>
-
#include "prm.h"
#include "prm-regbits-24xx.h"
#include "cm.h"
+#include <plat/clock.h>
#include <plat/powerdomain.h>
#include <plat/clockdomain.h>
+#include <plat/prcm.h>
/* clkdm_list contains all registered struct clockdomains */
static LIST_HEAD(clkdm_list);
/* clkdm_mutex protects clkdm_list add and del ops */
static DEFINE_MUTEX(clkdm_mutex);
-/* array of powerdomain deps to be added/removed when clkdm in hwsup mode */
-static struct clkdm_pwrdm_autodep *autodeps;
+/* array of clockdomain deps to be added/removed when clkdm in hwsup mode */
+static struct clkdm_autodep *autodeps;
/* Private functions */
+static struct clockdomain *_clkdm_lookup(const char *name)
+{
+ struct clockdomain *clkdm, *temp_clkdm;
+
+ if (!name)
+ return NULL;
+
+ clkdm = NULL;
+
+ list_for_each_entry(temp_clkdm, &clkdm_list, node) {
+ if (!strcmp(name, temp_clkdm->name)) {
+ clkdm = temp_clkdm;
+ break;
+ }
+ }
+
+ return clkdm;
+}
+
+/* _clkdm_deps_lookup - look up the specified clockdomain in a clkdm list */
+static struct clkdm_dep *_clkdm_deps_lookup(struct clockdomain *clkdm,
+ struct clkdm_dep *deps)
+{
+ struct clkdm_dep *cd;
+
+ if (!clkdm || !deps || !omap_chip_is(clkdm->omap_chip))
+ return ERR_PTR(-EINVAL);
+
+ for (cd = deps; cd->clkdm_name; cd++) {
+
+ if (!omap_chip_is(cd->omap_chip))
+ continue;
+
+ if (!cd->clkdm && cd->clkdm_name)
+ cd->clkdm = _clkdm_lookup(cd->clkdm_name);
+
+ if (cd->clkdm == clkdm)
+ break;
+
+ }
+
+ if (!cd->clkdm_name)
+ return ERR_PTR(-ENOENT);
+
+ return cd;
+}
+
/*
- * _autodep_lookup - resolve autodep pwrdm names to pwrdm pointers; store
- * @autodep: struct clkdm_pwrdm_autodep * to resolve
+ * _autodep_lookup - resolve autodep clkdm names to clkdm pointers; store
+ * @autodep: struct clkdm_autodep * to resolve
*
- * Resolve autodep powerdomain names to powerdomain pointers via
- * pwrdm_lookup() and store the pointers in the autodep structure. An
- * "autodep" is a powerdomain sleep/wakeup dependency that is
+ * Resolve autodep clockdomain names to clockdomain pointers via
+ * clkdm_lookup() and store the pointers in the autodep structure. An
+ * "autodep" is a clockdomain sleep/wakeup dependency that is
* automatically added and removed whenever clocks in the associated
* clockdomain are enabled or disabled (respectively) when the
* clockdomain is in hardware-supervised mode. Meant to be called
* once at clockdomain layer initialization, since these should remain
* fixed for a particular architecture. No return value.
*/
-static void _autodep_lookup(struct clkdm_pwrdm_autodep *autodep)
+static void _autodep_lookup(struct clkdm_autodep *autodep)
{
- struct powerdomain *pwrdm;
+ struct clockdomain *clkdm;
if (!autodep)
return;
if (!omap_chip_is(autodep->omap_chip))
return;
- pwrdm = pwrdm_lookup(autodep->pwrdm.name);
- if (!pwrdm) {
- pr_err("clockdomain: autodeps: powerdomain %s does not exist\n",
- autodep->pwrdm.name);
- pwrdm = ERR_PTR(-ENOENT);
+ clkdm = clkdm_lookup(autodep->clkdm.name);
+ if (!clkdm) {
+ pr_err("clockdomain: autodeps: clockdomain %s does not exist\n",
+ autodep->clkdm.name);
+ clkdm = ERR_PTR(-ENOENT);
}
- autodep->pwrdm.ptr = pwrdm;
+ autodep->clkdm.ptr = clkdm;
}
/*
*/
static void _clkdm_add_autodeps(struct clockdomain *clkdm)
{
- struct clkdm_pwrdm_autodep *autodep;
+ struct clkdm_autodep *autodep;
- for (autodep = autodeps; autodep->pwrdm.ptr; autodep++) {
- if (IS_ERR(autodep->pwrdm.ptr))
+ for (autodep = autodeps; autodep->clkdm.ptr; autodep++) {
+ if (IS_ERR(autodep->clkdm.ptr))
continue;
if (!omap_chip_is(autodep->omap_chip))
continue;
pr_debug("clockdomain: adding %s sleepdep/wkdep for "
- "pwrdm %s\n", autodep->pwrdm.ptr->name,
- clkdm->pwrdm.ptr->name);
+ "clkdm %s\n", autodep->clkdm.ptr->name,
+ clkdm->name);
- pwrdm_add_sleepdep(clkdm->pwrdm.ptr, autodep->pwrdm.ptr);
- pwrdm_add_wkdep(clkdm->pwrdm.ptr, autodep->pwrdm.ptr);
+ clkdm_add_sleepdep(clkdm, autodep->clkdm.ptr);
+ clkdm_add_wkdep(clkdm, autodep->clkdm.ptr);
}
}
*/
static void _clkdm_del_autodeps(struct clockdomain *clkdm)
{
- struct clkdm_pwrdm_autodep *autodep;
+ struct clkdm_autodep *autodep;
- for (autodep = autodeps; autodep->pwrdm.ptr; autodep++) {
- if (IS_ERR(autodep->pwrdm.ptr))
+ for (autodep = autodeps; autodep->clkdm.ptr; autodep++) {
+ if (IS_ERR(autodep->clkdm.ptr))
continue;
if (!omap_chip_is(autodep->omap_chip))
continue;
pr_debug("clockdomain: removing %s sleepdep/wkdep for "
- "pwrdm %s\n", autodep->pwrdm.ptr->name,
- clkdm->pwrdm.ptr->name);
+ "clkdm %s\n", autodep->clkdm.ptr->name,
+ clkdm->name);
- pwrdm_del_sleepdep(clkdm->pwrdm.ptr, autodep->pwrdm.ptr);
- pwrdm_del_wkdep(clkdm->pwrdm.ptr, autodep->pwrdm.ptr);
+ clkdm_del_sleepdep(clkdm, autodep->clkdm.ptr);
+ clkdm_del_wkdep(clkdm, autodep->clkdm.ptr);
}
}
}
-static struct clockdomain *_clkdm_lookup(const char *name)
-{
- struct clockdomain *clkdm, *temp_clkdm;
-
- if (!name)
- return NULL;
-
- clkdm = NULL;
-
- list_for_each_entry(temp_clkdm, &clkdm_list, node) {
- if (!strcmp(name, temp_clkdm->name)) {
- clkdm = temp_clkdm;
- break;
- }
- }
-
- return clkdm;
-}
-
/* Public functions */
*
* Set up internal state. If a pointer to an array of clockdomains
* was supplied, loop through the list of clockdomains, register all
- * that are available on the current platform. Similarly, if a
- * pointer to an array of clockdomain-powerdomain autodependencies was
- * provided, register those. No return value.
+ * that are available on the current platform. Similarly, if a pointer
+ * to an array of clockdomain autodependencies was provided, register
+ * those. No return value.
*/
void clkdm_init(struct clockdomain **clkdms,
- struct clkdm_pwrdm_autodep *init_autodeps)
+ struct clkdm_autodep *init_autodeps)
{
struct clockdomain **c = NULL;
- struct clkdm_pwrdm_autodep *autodep = NULL;
+ struct clkdm_autodep *autodep = NULL;
if (clkdms)
for (c = clkdms; *c; c++)
clkdm_register(*c);
- if (!cpu_is_omap44xx()) {
- autodeps = init_autodeps;
- if (autodeps)
- for (autodep = autodeps; autodep->pwrdm.ptr; autodep++)
- _autodep_lookup(autodep);
- }
+ autodeps = init_autodeps;
+ if (autodeps)
+ for (autodep = autodeps; autodep->clkdm.ptr; autodep++)
+ _autodep_lookup(autodep);
}
/**
/* Hardware clockdomain control */
/**
+ * clkdm_add_wkdep - add a wakeup dependency from clkdm2 to clkdm1
+ * @clkdm1: wake this struct clockdomain * up (dependent)
+ * @clkdm2: when this struct clockdomain * wakes up (source)
+ *
+ * When the clockdomain represented by @clkdm2 wakes up, wake up
+ * @clkdm1. Implemented in hardware on the OMAP, this feature is
+ * designed to reduce wakeup latency of the dependent clockdomain @clkdm1.
+ * Returns -EINVAL if presented with invalid clockdomain pointers,
+ * -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or 0 upon
+ * success.
+ */
+int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
+{
+ struct clkdm_dep *cd;
+
+ if (!clkdm1 || !clkdm2)
+ return -EINVAL;
+
+ cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
+ if (IS_ERR(cd)) {
+ pr_debug("clockdomain: hardware cannot set/clear wake up of "
+ "%s when %s wakes up\n", clkdm1->name, clkdm2->name);
+ return PTR_ERR(cd);
+ }
+
+ pr_debug("clockdomain: hardware will wake up %s when %s wakes up\n",
+ clkdm1->name, clkdm2->name);
+
+ prm_set_mod_reg_bits((1 << clkdm2->dep_bit),
+ clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP);
+
+ return 0;
+}
+
+/**
+ * clkdm_del_wkdep - remove a wakeup dependency from clkdm2 to clkdm1
+ * @clkdm1: wake this struct clockdomain * up (dependent)
+ * @clkdm2: when this struct clockdomain * wakes up (source)
+ *
+ * Remove a wakeup dependency causing @clkdm1 to wake up when @clkdm2
+ * wakes up. Returns -EINVAL if presented with invalid clockdomain
+ * pointers, -ENOENT if @clkdm2 cannot wake up clkdm1 in hardware, or
+ * 0 upon success.
+ */
+int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
+{
+ struct clkdm_dep *cd;
+
+ if (!clkdm1 || !clkdm2)
+ return -EINVAL;
+
+ cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
+ if (IS_ERR(cd)) {
+ pr_debug("clockdomain: hardware cannot set/clear wake up of "
+ "%s when %s wakes up\n", clkdm1->name, clkdm2->name);
+ return PTR_ERR(cd);
+ }
+
+ pr_debug("clockdomain: hardware will no longer wake up %s after %s "
+ "wakes up\n", clkdm1->name, clkdm2->name);
+
+ prm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
+ clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP);
+
+ return 0;
+}
+
+/**
+ * clkdm_read_wkdep - read wakeup dependency state from clkdm2 to clkdm1
+ * @clkdm1: wake this struct clockdomain * up (dependent)
+ * @clkdm2: when this struct clockdomain * wakes up (source)
+ *
+ * Return 1 if a hardware wakeup dependency exists wherein @clkdm1 will be
+ * awoken when @clkdm2 wakes up; 0 if dependency is not set; -EINVAL
+ * if either clockdomain pointer is invalid; or -ENOENT if the hardware
+ * is incapable.
+ *
+ * REVISIT: Currently this function only represents software-controllable
+ * wakeup dependencies. Wakeup dependencies fixed in hardware are not
+ * yet handled here.
+ */
+int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
+{
+ struct clkdm_dep *cd;
+
+ if (!clkdm1 || !clkdm2)
+ return -EINVAL;
+
+ cd = _clkdm_deps_lookup(clkdm2, clkdm1->wkdep_srcs);
+ if (IS_ERR(cd)) {
+ pr_debug("clockdomain: hardware cannot set/clear wake up of "
+ "%s when %s wakes up\n", clkdm1->name, clkdm2->name);
+ return PTR_ERR(cd);
+ }
+
+ return prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP,
+ (1 << clkdm2->dep_bit));
+}
+
+/**
+ * clkdm_add_sleepdep - add a sleep dependency from clkdm2 to clkdm1
+ * @clkdm1: prevent this struct clockdomain * from sleeping (dependent)
+ * @clkdm2: when this struct clockdomain * is active (source)
+ *
+ * Prevent @clkdm1 from automatically going inactive (and then to
+ * retention or off) if @clkdm2 is active. Returns -EINVAL if
+ * presented with invalid clockdomain pointers or called on a machine
+ * that does not support software-configurable hardware sleep
+ * dependencies, -ENOENT if the specified dependency cannot be set in
+ * hardware, or 0 upon success.
+ */
+int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
+{
+ struct clkdm_dep *cd;
+
+ if (!cpu_is_omap34xx())
+ return -EINVAL;
+
+ if (!clkdm1 || !clkdm2)
+ return -EINVAL;
+
+ cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs);
+ if (IS_ERR(cd)) {
+ pr_debug("clockdomain: hardware cannot set/clear sleep "
+ "dependency affecting %s from %s\n", clkdm1->name,
+ clkdm2->name);
+ return PTR_ERR(cd);
+ }
+
+ pr_debug("clockdomain: will prevent %s from sleeping if %s is active\n",
+ clkdm1->name, clkdm2->name);
+
+ cm_set_mod_reg_bits((1 << clkdm2->dep_bit),
+ clkdm1->pwrdm.ptr->prcm_offs,
+ OMAP3430_CM_SLEEPDEP);
+
+ return 0;
+}
+
+/**
+ * clkdm_del_sleepdep - remove a sleep dependency from clkdm2 to clkdm1
+ * @clkdm1: prevent this struct clockdomain * from sleeping (dependent)
+ * @clkdm2: when this struct clockdomain * is active (source)
+ *
+ * Allow @clkdm1 to automatically go inactive (and then to retention or
+ * off), independent of the activity state of @clkdm2. Returns -EINVAL
+ * if presented with invalid clockdomain pointers or called on a machine
+ * that does not support software-configurable hardware sleep dependencies,
+ * -ENOENT if the specified dependency cannot be cleared in hardware, or
+ * 0 upon success.
+ */
+int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
+{
+ struct clkdm_dep *cd;
+
+ if (!cpu_is_omap34xx())
+ return -EINVAL;
+
+ if (!clkdm1 || !clkdm2)
+ return -EINVAL;
+
+ cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs);
+ if (IS_ERR(cd)) {
+ pr_debug("clockdomain: hardware cannot set/clear sleep "
+ "dependency affecting %s from %s\n", clkdm1->name,
+ clkdm2->name);
+ return PTR_ERR(cd);
+ }
+
+ pr_debug("clockdomain: will no longer prevent %s from sleeping if "
+ "%s is active\n", clkdm1->name, clkdm2->name);
+
+ cm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
+ clkdm1->pwrdm.ptr->prcm_offs,
+ OMAP3430_CM_SLEEPDEP);
+
+ return 0;
+}
+
+/**
+ * clkdm_read_sleepdep - read sleep dependency state from clkdm2 to clkdm1
+ * @clkdm1: prevent this struct clockdomain * from sleeping (dependent)
+ * @clkdm2: when this struct clockdomain * is active (source)
+ *
+ * Return 1 if a hardware sleep dependency exists wherein @clkdm1 will
+ * not be allowed to automatically go inactive if @clkdm2 is active;
+ * 0 if @clkdm1's automatic power state inactivity transition is independent
+ * of @clkdm2's; -EINVAL if either clockdomain pointer is invalid or called
+ * on a machine that does not support software-configurable hardware sleep
+ * dependencies; or -ENOENT if the hardware is incapable.
+ *
+ * REVISIT: Currently this function only represents software-controllable
+ * sleep dependencies. Sleep dependencies fixed in hardware are not
+ * yet handled here.
+ */
+int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2)
+{
+ struct clkdm_dep *cd;
+
+ if (!cpu_is_omap34xx())
+ return -EINVAL;
+
+ if (!clkdm1 || !clkdm2)
+ return -EINVAL;
+
+ cd = _clkdm_deps_lookup(clkdm2, clkdm1->sleepdep_srcs);
+ if (IS_ERR(cd)) {
+ pr_debug("clockdomain: hardware cannot set/clear sleep "
+ "dependency affecting %s from %s\n", clkdm1->name,
+ clkdm2->name);
+ return PTR_ERR(cd);
+ }
+
+ return prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs,
+ OMAP3430_CM_SLEEPDEP,
+ (1 << clkdm2->dep_bit));
+}
+
+
+/**
* omap2_clkdm_clktrctrl_read - read the clkdm's current state transition mode
* @clk: struct clk * of a clockdomain
*
* OMAP2/3 clockdomains
*
* Copyright (C) 2008 Texas Instruments, Inc.
- * Copyright (C) 2008 Nokia Corporation
+ * Copyright (C) 2008-2009 Nokia Corporation
*
- * Written by Paul Walmsley
+ * Written by Paul Walmsley and Jouni Högander
+ *
+ * This file contains clockdomains and clockdomain wakeup/sleep
+ * dependencies for the OMAP2/3 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).
+ *
+ * 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
*/
/*
#include "prm.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.
+ */
+
+/* OMAP2/3-common wakeup dependencies */
+
+/*
+ * 2420/2430 PM_WKDEP_GFX: CORE, MPU, WKUP
+ * 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE
+ * 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE
+ */
+static struct clkdm_dep gfx_sgx_wkdeps[] = {
+ {
+ .clkdm_name = "core_l3_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "core_l4_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "iva2_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
+ CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "wkup_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
+ CHIP_IS_OMAP3430)
+ },
+ { NULL },
+};
+
+
+/* 24XX-specific possible dependencies */
+
+#ifdef CONFIG_ARCH_OMAP24XX
+
+/* Wakeup dependency source arrays */
+
+/*
+ * 2420/2430 PM_WKDEP_DSP: CORE, MPU, WKUP
+ * 2420/2430 PM_WKDEP_MDM: same as DSP
+ */
+static struct clkdm_dep dsp_mdm_24xx_wkdeps[] = {
+ {
+ .clkdm_name = "core_l3_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "core_l4_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "wkup_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ { NULL },
+};
+
+/*
+ * 2420 PM_WKDEP_MPU: CORE, DSP, WKUP
+ * 2430 adds MDM
+ */
+static struct clkdm_dep mpu_24xx_wkdeps[] = {
+ {
+ .clkdm_name = "core_l3_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "core_l4_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "dsp_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "wkup_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "mdm_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
+ },
+ { NULL },
+};
+
+/*
+ * 2420 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP
+ * 2430 adds MDM
+ */
+static struct clkdm_dep core_24xx_wkdeps[] = {
+ {
+ .clkdm_name = "dsp_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "gfx_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "wkup_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
+ },
+ {
+ .clkdm_name = "mdm_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
+ },
+ { NULL },
+};
+
+#endif
+
+/* 34XX-specific possible dependencies */
+
+#ifdef CONFIG_ARCH_OMAP34XX
+
+/*
+ * 3430: PM_WKDEP_{PER,USBHOST}: CORE, IVA2, MPU, WKUP
+ * (USBHOST is ES2 only)
+ */
+static struct clkdm_dep per_usbhost_wkdeps[] = {
+ {
+ .clkdm_name = "core_l3_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "core_l4_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "iva2_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "wkup_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ { NULL },
+};
+
+/*
+ * 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER
+ */
+static struct clkdm_dep mpu_34xx_wkdeps[] = {
+ {
+ .clkdm_name = "core_l3_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "core_l4_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "iva2_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "dss_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "per_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ { NULL },
+};
+
+/*
+ * 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER
+ */
+static struct clkdm_dep iva2_wkdeps[] = {
+ {
+ .clkdm_name = "core_l3_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "core_l4_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "wkup_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "dss_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "per_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ { NULL },
+};
+
+
+/* 3430 PM_WKDEP_{CAM,DSS}: IVA2, MPU, WKUP */
+static struct clkdm_dep cam_dss_wkdeps[] = {
+ {
+ .clkdm_name = "iva2_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "wkup_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ { NULL },
+};
+
+/* 3430: PM_WKDEP_NEON: MPU */
+static struct clkdm_dep neon_wkdeps[] = {
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ { NULL },
+};
+
+
+/* Sleep dependency source arrays for 34xx-specific clkdms - 34XX only */
+
+/*
+ * 3430: CM_SLEEPDEP_{DSS,PER}: MPU, IVA
+ * 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA
+ */
+static struct clkdm_dep dss_per_usbhost_sleepdeps[] = {
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ {
+ .clkdm_name = "iva2_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ { NULL },
+};
+
+/*
+ * 3430: CM_SLEEPDEP_CAM: MPU
+ * 3430ES1: CM_SLEEPDEP_GFX: MPU
+ * 3430ES2: CM_SLEEPDEP_SGX: MPU
+ */
+static struct clkdm_dep cam_gfx_sleepdeps[] = {
+ {
+ .clkdm_name = "mpu_clkdm",
+ .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
+ },
+ { NULL },
+};
+
+#endif /* CONFIG_ARCH_OMAP34XX */
+
+
+/*
* OMAP2/3-common clockdomains
*
* Even though the 2420 has a single PRCM module from the
static struct clockdomain wkup_clkdm = {
.name = "wkup_clkdm",
.pwrdm = { .name = "wkup_pwrdm" },
+ .dep_bit = OMAP_EN_WKUP_SHIFT,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
};
.pwrdm = { .name = "mpu_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(MPU_MOD, OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = mpu_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(OMAP24XX_DSP_MOD,
OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
+ .wkdep_srcs = dsp_mdm_24xx_wkdeps,
.clktrctrl_mask = OMAP2420_AUTOSTATE_IVA_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
};
.pwrdm = { .name = "gfx_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = gfx_sgx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
};
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = core_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
};
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2420_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = core_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2420),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(MPU_MOD,
OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = mpu_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
};
+/* Another case of bit name collisions between several registers: EN_MDM */
static struct clockdomain mdm_clkdm = {
.name = "mdm_clkdm",
.pwrdm = { .name = "mdm_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(OMAP2430_MDM_MOD,
OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT,
+ .wkdep_srcs = dsp_mdm_24xx_wkdeps,
.clktrctrl_mask = OMAP2430_AUTOSTATE_MDM_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(OMAP24XX_DSP_MOD,
OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
+ .wkdep_srcs = dsp_mdm_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
};
.pwrdm = { .name = "gfx_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = gfx_sgx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
};
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm
+ * could cause trouble
+ */
static struct clockdomain core_l3_2430_clkdm = {
.name = "core_l3_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP24XX_EN_CORE_SHIFT,
+ .wkdep_srcs = core_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
};
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm
+ * could cause trouble
+ */
static struct clockdomain core_l4_2430_clkdm = {
.name = "core_l4_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP2430_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP24XX_EN_CORE_SHIFT,
+ .wkdep_srcs = core_24xx_wkdeps,
.clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
};
.pwrdm = { .name = "mpu_pwrdm" },
.flags = CLKDM_CAN_HWSUP | CLKDM_CAN_FORCE_WAKEUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(MPU_MOD, OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP3430_EN_MPU_SHIFT,
+ .wkdep_srcs = mpu_34xx_wkdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_MPU_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_NEON_MOD,
OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = neon_wkdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_NEON_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_IVA2_MOD,
OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT,
+ .wkdep_srcs = iva2_wkdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_IVA2_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
.pwrdm = { .name = "gfx_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(GFX_MOD, OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = gfx_sgx_wkdeps,
+ .sleepdep_srcs = cam_gfx_sleepdeps,
.clktrctrl_mask = OMAP3430ES1_CLKTRCTRL_GFX_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES1),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430ES2_SGX_MOD,
OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = gfx_sgx_wkdeps,
+ .sleepdep_srcs = cam_gfx_sleepdeps,
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_SGX_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
};
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_34xx_clkdm and core_l4_34xx_clkdm
+ * could cause trouble
+ */
static struct clockdomain core_l3_34xx_clkdm = {
.name = "core_l3_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP3430_EN_CORE_SHIFT,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_L3_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
+/*
+ * XXX add usecounting for clkdm dependencies, otherwise the presence
+ * of a single dep bit for core_l3_34xx_clkdm and core_l4_34xx_clkdm
+ * could cause trouble
+ */
static struct clockdomain core_l4_34xx_clkdm = {
.name = "core_l4_clkdm",
.pwrdm = { .name = "core_pwrdm" },
.flags = CLKDM_CAN_HWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(CORE_MOD, OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP3430_EN_CORE_SHIFT,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_L4_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
+/* Another case of bit name collisions between several registers: EN_DSS */
static struct clockdomain dss_34xx_clkdm = {
.name = "dss_clkdm",
.pwrdm = { .name = "dss_pwrdm" },
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_DSS_MOD,
OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
+ .wkdep_srcs = cam_dss_wkdeps,
+ .sleepdep_srcs = dss_per_usbhost_sleepdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_DSS_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_CAM_MOD,
OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = cam_dss_wkdeps,
+ .sleepdep_srcs = cam_gfx_sleepdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_CAM_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430ES2_USBHOST_MOD,
OMAP2_CM_CLKSTCTRL),
+ .wkdep_srcs = per_usbhost_wkdeps,
+ .sleepdep_srcs = dss_per_usbhost_sleepdeps,
.clktrctrl_mask = OMAP3430ES2_CLKTRCTRL_USBHOST_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
};
.flags = CLKDM_CAN_HWSUP_SWSUP,
.clkstctrl_reg = OMAP34XX_CM_REGADDR(OMAP3430_PER_MOD,
OMAP2_CM_CLKSTCTRL),
+ .dep_bit = OMAP3430_EN_PER_SHIFT,
+ .wkdep_srcs = per_usbhost_wkdeps,
+ .sleepdep_srcs = dss_per_usbhost_sleepdeps,
.clktrctrl_mask = OMAP3430_CLKTRCTRL_PER_MASK,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
};
#include "clockdomains44xx.h"
/*
- * Clockdomain-powerdomain hwsup dependencies (34XX only)
+ * Clockdomain hwsup dependencies (34XX only)
*/
-static struct clkdm_pwrdm_autodep clkdm_pwrdm_autodeps[] = {
-
-#ifdef CONFIG_ARCH_OMAP34XX
+static struct clkdm_autodep clkdm_autodeps[] = {
{
- .pwrdm = { .name = "mpu_pwrdm" },
+ .clkdm = { .name = "mpu_clkdm" },
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
},
{
- .pwrdm = { .name = "iva2_pwrdm" },
+ .clkdm = { .name = "iva2_clkdm" },
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
},
{
- .pwrdm = { .name = NULL },
+ .clkdm = { .name = NULL },
}
-#endif
-
};
/*
hwmods = omap34xx_hwmods;
pwrdm_init(powerdomains_omap);
- clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
+ clkdm_init(clockdomains_omap, clkdm_autodeps);
#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */
/* The OPP tables have to be registered before a clk init */
omap_hwmod_init(hwmods);
* be accessed by the IVA, there should be a sleepdep between the IVA
* initiator and the module). Only applies to modules in smart-idle
* mode. Returns -EINVAL upon error or passes along
- * pwrdm_add_sleepdep() value upon success.
+ * clkdm_add_sleepdep() value upon success.
*/
static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
{
if (!oh->_clk)
return -EINVAL;
- return pwrdm_add_sleepdep(oh->_clk->clkdm->pwrdm.ptr,
- init_oh->_clk->clkdm->pwrdm.ptr);
+ return clkdm_add_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
}
/**
* be accessed by the IVA, there should be no sleepdep between the IVA
* initiator and the module). Only applies to modules in smart-idle
* mode. Returns -EINVAL upon error or passes along
- * pwrdm_add_sleepdep() value upon success.
+ * clkdm_del_sleepdep() value upon success.
*/
static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
{
if (!oh->_clk)
return -EINVAL;
- return pwrdm_del_sleepdep(oh->_clk->clkdm->pwrdm.ptr,
- init_oh->_clk->clkdm->pwrdm.ptr);
+ return clkdm_del_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
}
/**
static int __init omap3_pm_init(void)
{
struct power_state *pwrst, *tmp;
+ struct clockdomain *neon_clkdm, *per_clkdm, *mpu_clkdm, *core_clkdm;
int ret;
if (!cpu_is_omap34xx())
core_pwrdm = pwrdm_lookup("core_pwrdm");
cam_pwrdm = pwrdm_lookup("cam_pwrdm");
+ neon_clkdm = clkdm_lookup("neon_clkdm");
+ mpu_clkdm = clkdm_lookup("mpu_clkdm");
+ per_clkdm = clkdm_lookup("per_clkdm");
+ core_clkdm = clkdm_lookup("core_clkdm");
+
omap_push_sram_idle();
#ifdef CONFIG_SUSPEND
suspend_set_ops(&omap_pm_ops);
pm_idle = omap3_pm_idle;
omap3_idle_init();
- pwrdm_add_wkdep(neon_pwrdm, mpu_pwrdm);
+ clkdm_add_wkdep(neon_clkdm, mpu_clkdm);
/*
* REVISIT: This wkdep is only necessary when GPIO2-6 are enabled for
* IO-pad wakeup. Otherwise it will unnecessarily waste power
* waking up PER with every CORE wakeup - see
* http://marc.info/?l=linux-omap&m=121852150710062&w=2
*/
- pwrdm_add_wkdep(per_pwrdm, core_pwrdm);
+ clkdm_add_wkdep(per_clkdm, core_clkdm);
if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
omap3_secure_ram_storage =
* OMAP powerdomain control
*
* Copyright (C) 2007-2008 Texas Instruments, Inc.
- * Copyright (C) 2007-2008 Nokia Corporation
+ * Copyright (C) 2007-2009 Nokia Corporation
*
* Written by Paul Walmsley
*
#include <plat/cpu.h>
#include <plat/powerdomain.h>
#include <plat/clockdomain.h>
+#include <plat/prcm.h>
#include "pm.h"
/* Private functions */
-static u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
-{
- u32 v;
-
- v = prm_read_mod_reg(domain, idx);
- v &= mask;
- v >>= __ffs(mask);
-
- return v;
-}
-
static struct powerdomain *_pwrdm_lookup(const char *name)
{
struct powerdomain *pwrdm, *temp_pwrdm;
return pwrdm;
}
-/* _pwrdm_deps_lookup - look up the specified powerdomain in a pwrdm list */
-static struct powerdomain *_pwrdm_deps_lookup(struct powerdomain *pwrdm,
- struct pwrdm_dep *deps)
-{
- struct pwrdm_dep *pd;
-
- if (!pwrdm || !deps || !omap_chip_is(pwrdm->omap_chip))
- return ERR_PTR(-EINVAL);
-
- for (pd = deps; pd->pwrdm_name; pd++) {
-
- if (!omap_chip_is(pd->omap_chip))
- continue;
-
- if (!pd->pwrdm && pd->pwrdm_name)
- pd->pwrdm = pwrdm_lookup(pd->pwrdm_name);
-
- if (pd->pwrdm == pwrdm)
- break;
-
- }
-
- if (!pd->pwrdm_name)
- return ERR_PTR(-ENOENT);
-
- return pd->pwrdm;
-}
-
static int _pwrdm_state_switch(struct powerdomain *pwrdm, int flag)
{
return ret;
}
-
-/**
- * pwrdm_add_wkdep - add a wakeup dependency from pwrdm2 to pwrdm1
- * @pwrdm1: wake this struct powerdomain * up (dependent)
- * @pwrdm2: when this struct powerdomain * wakes up (source)
- *
- * When the powerdomain represented by pwrdm2 wakes up (due to an
- * interrupt), wake up pwrdm1. Implemented in hardware on the OMAP,
- * this feature is designed to reduce wakeup latency of the dependent
- * powerdomain. Returns -EINVAL if presented with invalid powerdomain
- * pointers, -ENOENT if pwrdm2 cannot wake up pwrdm1 in hardware, or
- * 0 upon success.
- */
-int pwrdm_add_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2)
-{
- struct powerdomain *p;
-
- if (!pwrdm1)
- return -EINVAL;
-
- p = _pwrdm_deps_lookup(pwrdm2, pwrdm1->wkdep_srcs);
- if (IS_ERR(p)) {
- pr_debug("powerdomain: hardware cannot set/clear wake up of "
- "%s when %s wakes up\n", pwrdm1->name, pwrdm2->name);
- return PTR_ERR(p);
- }
-
- pr_debug("powerdomain: hardware will wake up %s when %s wakes up\n",
- pwrdm1->name, pwrdm2->name);
-
- prm_set_mod_reg_bits((1 << pwrdm2->dep_bit),
- pwrdm1->prcm_offs, PM_WKDEP);
-
- return 0;
-}
-
-/**
- * pwrdm_del_wkdep - remove a wakeup dependency from pwrdm2 to pwrdm1
- * @pwrdm1: wake this struct powerdomain * up (dependent)
- * @pwrdm2: when this struct powerdomain * wakes up (source)
- *
- * Remove a wakeup dependency that causes pwrdm1 to wake up when pwrdm2
- * wakes up. Returns -EINVAL if presented with invalid powerdomain
- * pointers, -ENOENT if pwrdm2 cannot wake up pwrdm1 in hardware, or
- * 0 upon success.
- */
-int pwrdm_del_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2)
-{
- struct powerdomain *p;
-
- if (!pwrdm1)
- return -EINVAL;
-
- p = _pwrdm_deps_lookup(pwrdm2, pwrdm1->wkdep_srcs);
- if (IS_ERR(p)) {
- pr_debug("powerdomain: hardware cannot set/clear wake up of "
- "%s when %s wakes up\n", pwrdm1->name, pwrdm2->name);
- return PTR_ERR(p);
- }
-
- pr_debug("powerdomain: hardware will no longer wake up %s after %s "
- "wakes up\n", pwrdm1->name, pwrdm2->name);
-
- prm_clear_mod_reg_bits((1 << pwrdm2->dep_bit),
- pwrdm1->prcm_offs, PM_WKDEP);
-
- return 0;
-}
-
-/**
- * pwrdm_read_wkdep - read wakeup dependency state from pwrdm2 to pwrdm1
- * @pwrdm1: wake this struct powerdomain * up (dependent)
- * @pwrdm2: when this struct powerdomain * wakes up (source)
- *
- * Return 1 if a hardware wakeup dependency exists wherein pwrdm1 will be
- * awoken when pwrdm2 wakes up; 0 if dependency is not set; -EINVAL
- * if either powerdomain pointer is invalid; or -ENOENT if the hardware
- * is incapable.
- *
- * REVISIT: Currently this function only represents software-controllable
- * wakeup dependencies. Wakeup dependencies fixed in hardware are not
- * yet handled here.
- */
-int pwrdm_read_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2)
-{
- struct powerdomain *p;
-
- if (!pwrdm1)
- return -EINVAL;
-
- p = _pwrdm_deps_lookup(pwrdm2, pwrdm1->wkdep_srcs);
- if (IS_ERR(p)) {
- pr_debug("powerdomain: hardware cannot set/clear wake up of "
- "%s when %s wakes up\n", pwrdm1->name, pwrdm2->name);
- return PTR_ERR(p);
- }
-
- return prm_read_mod_bits_shift(pwrdm1->prcm_offs, PM_WKDEP,
- (1 << pwrdm2->dep_bit));
-}
-
-/**
- * pwrdm_add_sleepdep - add a sleep dependency from pwrdm2 to pwrdm1
- * @pwrdm1: prevent this struct powerdomain * from sleeping (dependent)
- * @pwrdm2: when this struct powerdomain * is active (source)
- *
- * Prevent pwrdm1 from automatically going inactive (and then to
- * retention or off) if pwrdm2 is still active. Returns -EINVAL if
- * presented with invalid powerdomain pointers or called on a machine
- * that does not support software-configurable hardware sleep dependencies,
- * -ENOENT if the specified dependency cannot be set in hardware, or
- * 0 upon success.
- */
-int pwrdm_add_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2)
-{
- struct powerdomain *p;
-
- if (!cpu_is_omap34xx())
- return -EINVAL;
-
- if (!pwrdm1)
- return -EINVAL;
-
- p = _pwrdm_deps_lookup(pwrdm2, pwrdm1->sleepdep_srcs);
- if (IS_ERR(p)) {
- pr_debug("powerdomain: hardware cannot set/clear sleep "
- "dependency affecting %s from %s\n", pwrdm1->name,
- pwrdm2->name);
- return PTR_ERR(p);
- }
-
- pr_debug("powerdomain: will prevent %s from sleeping if %s is active\n",
- pwrdm1->name, pwrdm2->name);
-
- cm_set_mod_reg_bits((1 << pwrdm2->dep_bit),
- pwrdm1->prcm_offs, OMAP3430_CM_SLEEPDEP);
-
- return 0;
-}
-
-/**
- * pwrdm_del_sleepdep - remove a sleep dependency from pwrdm2 to pwrdm1
- * @pwrdm1: prevent this struct powerdomain * from sleeping (dependent)
- * @pwrdm2: when this struct powerdomain * is active (source)
- *
- * Allow pwrdm1 to automatically go inactive (and then to retention or
- * off), independent of the activity state of pwrdm2. Returns -EINVAL
- * if presented with invalid powerdomain pointers or called on a machine
- * that does not support software-configurable hardware sleep dependencies,
- * -ENOENT if the specified dependency cannot be cleared in hardware, or
- * 0 upon success.
- */
-int pwrdm_del_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2)
-{
- struct powerdomain *p;
-
- if (!cpu_is_omap34xx())
- return -EINVAL;
-
- if (!pwrdm1)
- return -EINVAL;
-
- p = _pwrdm_deps_lookup(pwrdm2, pwrdm1->sleepdep_srcs);
- if (IS_ERR(p)) {
- pr_debug("powerdomain: hardware cannot set/clear sleep "
- "dependency affecting %s from %s\n", pwrdm1->name,
- pwrdm2->name);
- return PTR_ERR(p);
- }
-
- pr_debug("powerdomain: will no longer prevent %s from sleeping if "
- "%s is active\n", pwrdm1->name, pwrdm2->name);
-
- cm_clear_mod_reg_bits((1 << pwrdm2->dep_bit),
- pwrdm1->prcm_offs, OMAP3430_CM_SLEEPDEP);
-
- return 0;
-}
-
-/**
- * pwrdm_read_sleepdep - read sleep dependency state from pwrdm2 to pwrdm1
- * @pwrdm1: prevent this struct powerdomain * from sleeping (dependent)
- * @pwrdm2: when this struct powerdomain * is active (source)
- *
- * Return 1 if a hardware sleep dependency exists wherein pwrdm1 will
- * not be allowed to automatically go inactive if pwrdm2 is active;
- * 0 if pwrdm1's automatic power state inactivity transition is independent
- * of pwrdm2's; -EINVAL if either powerdomain pointer is invalid or called
- * on a machine that does not support software-configurable hardware sleep
- * dependencies; or -ENOENT if the hardware is incapable.
- *
- * REVISIT: Currently this function only represents software-controllable
- * sleep dependencies. Sleep dependencies fixed in hardware are not
- * yet handled here.
- */
-int pwrdm_read_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2)
-{
- struct powerdomain *p;
-
- if (!cpu_is_omap34xx())
- return -EINVAL;
-
- if (!pwrdm1)
- return -EINVAL;
-
- p = _pwrdm_deps_lookup(pwrdm2, pwrdm1->sleepdep_srcs);
- if (IS_ERR(p)) {
- pr_debug("powerdomain: hardware cannot set/clear sleep "
- "dependency affecting %s from %s\n", pwrdm1->name,
- pwrdm2->name);
- return PTR_ERR(p);
- }
-
- return prm_read_mod_bits_shift(pwrdm1->prcm_offs, OMAP3430_CM_SLEEPDEP,
- (1 << pwrdm2->dep_bit));
-}
-
/**
* pwrdm_get_mem_bank_count - get number of memory banks in this powerdomain
* @pwrdm: struct powerdomain *
/*
* OMAP2/3 common powerdomain definitions
*
- * Copyright (C) 2007-8 Texas Instruments, Inc.
- * Copyright (C) 2007-8 Nokia Corporation
+ * Copyright (C) 2007-2008 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009 Nokia Corporation
*
* Written by Paul Walmsley
* Debugging and integration fixes by Jouni Högander
* This file contains all of the powerdomains that have some element
* of software control for the OMAP24xx and OMAP34XX chips.
*
- * A few notes:
- *
* This is not an exhaustive listing of powerdomains on the chips; only
* powerdomains that can be controlled in software.
- *
- * A useful validation rule for struct powerdomain:
- * Any powerdomain 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).
- *
- * 24xx does not support programmable sleep dependencies (SLEEPDEP)
- *
*/
/*
*
* On the 2420, this is a 'C55 DSP called, simply, the DSP. Its
* powerdomain is called the "DSP power domain." On the 2430, the
- * on-board DSP is a 'C64 DSP, now called the IVA2 or IVA2.1. Its
- * powerdomain is still called the "DSP power domain." On the 3430,
- * the DSP is a 'C64 DSP like the 2430, also known as the IVA2; but
- * its powerdomain is now called the "IVA2 power domain."
+ * on-board DSP is a 'C64 DSP, now called (along with its hardware
+ * accelerators) the IVA2 or IVA2.1. Its powerdomain is still called
+ * the "DSP power domain." On the 3430, the DSP is a 'C64 DSP like the
+ * 2430, also known as the IVA2; but its powerdomain is now called the
+ * "IVA2 power domain."
*
* The 2420 also has something called the IVA, which is a separate ARM
* core, and has nothing to do with the DSP/IVA2.
*
* Ideally the DSP/IVA2 could just be the same powerdomain, but the PRCM
* address offset is different between the C55 and C64 DSPs.
- *
- * 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
*/
#include <plat/powerdomain.h>
#include "prcm-common.h"
#include "prm.h"
#include "cm.h"
-
-/* OMAP2/3-common powerdomains and wakeup dependencies */
-
-#ifndef CONFIG_ARCH_OMAP4
-/*
- * 2420/2430 PM_WKDEP_GFX: CORE, MPU, WKUP
- * 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE
- * 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE
- */
-static struct pwrdm_dep gfx_sgx_wkdeps[] = {
- {
- .pwrdm_name = "core_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "iva2_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
- CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "wkup_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
- CHIP_IS_OMAP3430)
- },
- { NULL },
-};
-
-/*
- * 3430: CM_SLEEPDEP_CAM: MPU
- * 3430ES1: CM_SLEEPDEP_GFX: MPU
- * 3430ES2: CM_SLEEPDEP_SGX: MPU
- */
-static struct pwrdm_dep cam_gfx_sleepdeps[] = {
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- { NULL },
-};
-#endif
-
-
#include "powerdomains24xx.h"
#include "powerdomains34xx.h"
#include "powerdomains44xx.h"
-
-/*
- * OMAP2/3 common powerdomains
- */
+/* OMAP2/3-common powerdomains */
#if defined(CONFIG_ARCH_OMAP24XX) | defined(CONFIG_ARCH_OMAP34XX)
.prcm_offs = GFX_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX |
CHIP_IS_OMAP3430ES1),
- .wkdep_srcs = gfx_sgx_wkdeps,
- .sleepdep_srcs = cam_gfx_sleepdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
.banks = 1,
.name = "wkup_pwrdm",
.prcm_offs = WKUP_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430),
- .dep_bit = OMAP_EN_WKUP_SHIFT,
};
#endif
* OMAP24XX powerdomain definitions
*
* Copyright (C) 2007-2008 Texas Instruments, Inc.
- * Copyright (C) 2007-2008 Nokia Corporation
+ * Copyright (C) 2007-2009 Nokia Corporation
*
* Written by Paul Walmsley
* Debugging and integration fixes by Jouni Högander
#ifdef CONFIG_ARCH_OMAP24XX
-
-/* Wakeup dependency source arrays */
-
-/*
- * 2420/2430 PM_WKDEP_DSP: CORE, MPU, WKUP
- * 2430 PM_WKDEP_MDM: same as above
- */
-static struct pwrdm_dep dsp_mdm_24xx_wkdeps[] = {
- {
- .pwrdm_name = "core_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "wkup_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- { NULL },
-};
-
-/*
- * 2420 PM_WKDEP_MPU: CORE, DSP, WKUP
- * 2430 adds MDM
- */
-static struct pwrdm_dep mpu_24xx_wkdeps[] = {
- {
- .pwrdm_name = "core_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "dsp_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "wkup_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "mdm_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
- },
- { NULL },
-};
-
-/*
- * 2420 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP
- * 2430 adds MDM
- */
-static struct pwrdm_dep core_24xx_wkdeps[] = {
- {
- .pwrdm_name = "dsp_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "gfx_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "wkup_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX)
- },
- {
- .pwrdm_name = "mdm_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430)
- },
- { NULL },
-};
-
-
/* Powerdomains */
static struct powerdomain dsp_pwrdm = {
.name = "dsp_pwrdm",
.prcm_offs = OMAP24XX_DSP_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
- .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT,
- .wkdep_srcs = dsp_mdm_24xx_wkdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
.banks = 1,
.name = "mpu_pwrdm",
.prcm_offs = MPU_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
- .dep_bit = OMAP24XX_EN_MPU_SHIFT,
- .wkdep_srcs = mpu_24xx_wkdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.banks = 1,
.name = "core_pwrdm",
.prcm_offs = CORE_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX),
- .wkdep_srcs = core_24xx_wkdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
- .dep_bit = OMAP24XX_EN_CORE_SHIFT,
.banks = 3,
.pwrsts_mem_ret = {
[0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */
/* XXX 2430 KILLDOMAINWKUP bit? No current users apparently */
-/* Another case of bit name collisions between several registers: EN_MDM */
static struct powerdomain mdm_pwrdm = {
.name = "mdm_pwrdm",
.prcm_offs = OMAP2430_MDM_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP2430),
- .dep_bit = OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT,
- .wkdep_srcs = dsp_mdm_24xx_wkdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
.banks = 1,
* OMAP34XX powerdomain definitions
*
* Copyright (C) 2007-2008 Texas Instruments, Inc.
- * Copyright (C) 2007-2008 Nokia Corporation
+ * Copyright (C) 2007-2009 Nokia Corporation
*
* Written by Paul Walmsley
* Debugging and integration fixes by Jouni Högander
#ifdef CONFIG_ARCH_OMAP34XX
/*
- * 3430: PM_WKDEP_{PER,USBHOST}: CORE, IVA2, MPU, WKUP
- * (USBHOST is ES2 only)
- */
-static struct pwrdm_dep per_usbhost_wkdeps[] = {
- {
- .pwrdm_name = "core_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "iva2_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "wkup_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- { NULL },
-};
-
-/*
- * 3430 PM_WKDEP_MPU: CORE, IVA2, DSS, PER
- */
-static struct pwrdm_dep mpu_34xx_wkdeps[] = {
- {
- .pwrdm_name = "core_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "iva2_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "dss_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "per_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- { NULL },
-};
-
-/*
- * 3430 PM_WKDEP_IVA2: CORE, MPU, WKUP, DSS, PER
- */
-static struct pwrdm_dep iva2_wkdeps[] = {
- {
- .pwrdm_name = "core_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "wkup_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "dss_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "per_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- { NULL },
-};
-
-
-/* 3430 PM_WKDEP_{CAM,DSS}: IVA2, MPU, WKUP */
-static struct pwrdm_dep cam_dss_wkdeps[] = {
- {
- .pwrdm_name = "iva2_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "wkup_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- { NULL },
-};
-
-/* 3430: PM_WKDEP_NEON: MPU */
-static struct pwrdm_dep neon_wkdeps[] = {
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- { NULL },
-};
-
-
-/* Sleep dependency source arrays for 34xx-specific pwrdms - 34XX only */
-
-/*
- * 3430: CM_SLEEPDEP_{DSS,PER}: MPU, IVA
- * 3430ES2: CM_SLEEPDEP_USBHOST: MPU, IVA
- */
-static struct pwrdm_dep dss_per_usbhost_sleepdeps[] = {
- {
- .pwrdm_name = "mpu_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- {
- .pwrdm_name = "iva2_pwrdm",
- .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430)
- },
- { NULL },
-};
-
-
-/*
* Powerdomains
*/
.name = "iva2_pwrdm",
.prcm_offs = OMAP3430_IVA2_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
- .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_IVA2_SHIFT,
- .wkdep_srcs = iva2_wkdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.banks = 4,
.name = "mpu_pwrdm",
.prcm_offs = MPU_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
- .dep_bit = OMAP3430_EN_MPU_SHIFT,
- .wkdep_srcs = mpu_34xx_wkdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.flags = PWRDM_HAS_MPU_QUIRK,
},
};
-/* No wkdeps or sleepdeps for 34xx core apparently */
static struct powerdomain core_34xx_pre_es3_1_pwrdm = {
.name = "core_pwrdm",
.prcm_offs = CORE_MOD,
CHIP_IS_OMAP3430ES2 |
CHIP_IS_OMAP3430ES3_0),
.pwrsts = PWRSTS_OFF_RET_ON,
- .dep_bit = OMAP3430_EN_CORE_SHIFT,
.banks = 2,
.pwrsts_mem_ret = {
[0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */
},
};
-/* No wkdeps or sleepdeps for 34xx core apparently */
static struct powerdomain core_34xx_es3_1_pwrdm = {
.name = "core_pwrdm",
.prcm_offs = CORE_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES3_1),
.pwrsts = PWRSTS_OFF_RET_ON,
- .dep_bit = OMAP3430_EN_CORE_SHIFT,
.flags = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
.banks = 2,
.pwrsts_mem_ret = {
},
};
-/* Another case of bit name collisions between several registers: EN_DSS */
static struct powerdomain dss_pwrdm = {
.name = "dss_pwrdm",
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
.prcm_offs = OMAP3430_DSS_MOD,
- .dep_bit = OMAP3430_PM_WKDEP_MPU_EN_DSS_SHIFT,
- .wkdep_srcs = cam_dss_wkdeps,
- .sleepdep_srcs = dss_per_usbhost_sleepdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
.banks = 1,
.name = "sgx_pwrdm",
.prcm_offs = OMAP3430ES2_SGX_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
- .wkdep_srcs = gfx_sgx_wkdeps,
- .sleepdep_srcs = cam_gfx_sleepdeps,
/* XXX This is accurate for 3430 SGX, but what about GFX? */
.pwrsts = PWRSTS_OFF_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
.name = "cam_pwrdm",
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
.prcm_offs = OMAP3430_CAM_MOD,
- .wkdep_srcs = cam_dss_wkdeps,
- .sleepdep_srcs = cam_gfx_sleepdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
.banks = 1,
.name = "per_pwrdm",
.prcm_offs = OMAP3430_PER_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
- .dep_bit = OMAP3430_EN_PER_SHIFT,
- .wkdep_srcs = per_usbhost_wkdeps,
- .sleepdep_srcs = dss_per_usbhost_sleepdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_OFF_RET,
.banks = 1,
.name = "neon_pwrdm",
.prcm_offs = OMAP3430_NEON_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
- .wkdep_srcs = neon_wkdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
};
.name = "usbhost_pwrdm",
.prcm_offs = OMAP3430ES2_USBHOST_MOD,
.omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
- .wkdep_srcs = per_usbhost_wkdeps,
- .sleepdep_srcs = dss_per_usbhost_sleepdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
/*
return v;
}
+/* Read a PRM register, AND it, and shift the result down to bit 0 */
+u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
+{
+ u32 v;
+
+ v = prm_read_mod_reg(domain, idx);
+ v &= mask;
+ v >>= __ffs(mask);
+
+ return v;
+}
+
/* Read a register in a CM module */
u32 cm_read_mod_reg(s16 module, u16 idx)
{
* OMAP2/3 clockdomain framework functions
*
* Copyright (C) 2008 Texas Instruments, Inc.
- * Copyright (C) 2008 Nokia Corporation
+ * Copyright (C) 2008-2009 Nokia Corporation
*
* Written by Paul Walmsley
*
#define OMAP34XX_CLKSTCTRL_ENABLE_AUTO 0x3
/*
- * struct clkdm_pwrdm_autodep - a powerdomain that should have wkdeps
- * and sleepdeps added when a powerdomain should stay active in hwsup mode;
- * and conversely, removed when the powerdomain should be allowed to go
+ * struct clkdm_autodep - a clockdomain that should have wkdeps
+ * and sleepdeps added when a clockdomain should stay active in hwsup mode;
+ * and conversely, removed when the clockdomain should be allowed to go
* inactive in hwsup mode.
*/
-struct clkdm_pwrdm_autodep {
+struct clkdm_autodep {
union {
- /* Name of the powerdomain to add a wkdep/sleepdep on */
+ /* Name of the clockdomain to add a wkdep/sleepdep on */
const char *name;
- /* Powerdomain pointer (looked up at clkdm_init() time) */
- struct powerdomain *ptr;
- } pwrdm;
+ /* Clockdomain pointer (looked up at clkdm_init() time) */
+ struct clockdomain *ptr;
+ } clkdm;
/* OMAP chip types that this clockdomain dep is valid on */
const struct omap_chip_id omap_chip;
};
+/* Encodes dependencies between clockdomains - statically defined */
+struct clkdm_dep {
+
+ /* Clockdomain name */
+ const char *clkdm_name;
+
+ /* Clockdomain pointer - resolved by the clockdomain code */
+ struct clockdomain *clkdm;
+
+ /* Flags to mark OMAP chip restrictions, etc. */
+ const struct omap_chip_id omap_chip;
+
+};
+
struct clockdomain {
/* Clockdomain name */
/* Clockdomain capability flags */
const u8 flags;
+ /* Bit shift of this clockdomain's PM_WKDEP/CM_SLEEPDEP bit */
+ const u8 dep_bit;
+
+ /* Clockdomains that can be told to wake this powerdomain up */
+ struct clkdm_dep *wkdep_srcs;
+
+ /* Clockdomains that can be told to keep this clkdm from inactivity */
+ struct clkdm_dep *sleepdep_srcs;
+
/* OMAP chip types that this clockdomain is valid on */
const struct omap_chip_id omap_chip;
};
-void clkdm_init(struct clockdomain **clkdms, struct clkdm_pwrdm_autodep *autodeps);
+void clkdm_init(struct clockdomain **clkdms, struct clkdm_autodep *autodeps);
int clkdm_register(struct clockdomain *clkdm);
int clkdm_unregister(struct clockdomain *clkdm);
struct clockdomain *clkdm_lookup(const char *name);
void *user);
struct powerdomain *clkdm_get_pwrdm(struct clockdomain *clkdm);
+int clkdm_add_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_del_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_read_wkdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_add_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_del_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+int clkdm_read_sleepdep(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
+
void omap2_clkdm_allow_idle(struct clockdomain *clkdm);
void omap2_clkdm_deny_idle(struct clockdomain *clkdm);
/*
* OMAP2/3 powerdomain control
*
- * Copyright (C) 2007-8 Texas Instruments, Inc.
- * Copyright (C) 2007-8 Nokia Corporation
+ * Copyright (C) 2007-2008 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009 Nokia Corporation
*
* Written by Paul Walmsley
*
struct clockdomain;
struct powerdomain;
-/* Encodes dependencies between powerdomains - statically defined */
-struct pwrdm_dep {
-
- /* Powerdomain name */
- const char *pwrdm_name;
-
- /* Powerdomain pointer - resolved by the powerdomain code */
- struct powerdomain *pwrdm;
-
- /* Flags to mark OMAP chip restrictions, etc. */
- const struct omap_chip_id omap_chip;
-
-};
-
struct powerdomain {
/* Powerdomain name */
/* Used to represent the OMAP chip types containing this pwrdm */
const struct omap_chip_id omap_chip;
- /* Powerdomains that can be told to wake this powerdomain up */
- struct pwrdm_dep *wkdep_srcs;
-
- /* Powerdomains that can be told to keep this pwrdm from inactivity */
- struct pwrdm_dep *sleepdep_srcs;
-
- /* Bit shift of this powerdomain's PM_WKDEP/CM_SLEEPDEP bit */
- const u8 dep_bit;
-
/* Possible powerdomain power states */
const u8 pwrsts;
int (*fn)(struct powerdomain *pwrdm,
struct clockdomain *clkdm));
-int pwrdm_add_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_del_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_read_wkdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_add_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_del_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-int pwrdm_read_sleepdep(struct powerdomain *pwrdm1, struct powerdomain *pwrdm2);
-
int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm);
int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst);
void omap3_prcm_save_context(void);
void omap3_prcm_restore_context(void);
+u32 prm_read_mod_reg(s16 module, u16 idx);
+void prm_write_mod_reg(u32 val, s16 module, u16 idx);
+u32 prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
+u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask);
+u32 cm_read_mod_reg(s16 module, u16 idx);
+void cm_write_mod_reg(u32 val, s16 module, u16 idx);
+u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
+
#endif
projects / platform / kernel / linux-exynos.git / commitdiff