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Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod.c')
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c126
1 files changed, 93 insertions, 33 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 87cc6d058de2..3f3bf323e201 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -130,7 +130,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/io.h>
-#include <linux/clk.h>
+#include <linux/clk-provider.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/list.h>
@@ -139,27 +139,25 @@
#include <linux/slab.h>
#include <linux/bootmem.h>
-#include <plat/clock.h>
-#include <plat/omap_hwmod.h>
-#include <plat/prcm.h>
+#include "clock.h"
+#include "omap_hwmod.h"
#include "soc.h"
#include "common.h"
#include "clockdomain.h"
#include "powerdomain.h"
-#include "cm2xxx_3xxx.h"
+#include "cm2xxx.h"
+#include "cm3xxx.h"
#include "cminst44xx.h"
#include "cm33xx.h"
-#include "prm2xxx_3xxx.h"
+#include "prm.h"
+#include "prm3xxx.h"
#include "prm44xx.h"
#include "prm33xx.h"
#include "prminst44xx.h"
#include "mux.h"
#include "pm.h"
-/* Maximum microseconds to wait for OMAP module to softreset */
-#define MAX_MODULE_SOFTRESET_WAIT 10000
-
/* Name of the OMAP hwmod for the MPU */
#define MPU_INITIATOR_NAME "mpu"
@@ -648,6 +646,19 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v)
return 0;
}
+static struct clockdomain *_get_clkdm(struct omap_hwmod *oh)
+{
+ struct clk_hw_omap *clk;
+
+ if (oh->clkdm) {
+ return oh->clkdm;
+ } else if (oh->_clk) {
+ clk = to_clk_hw_omap(__clk_get_hw(oh->_clk));
+ return clk->clkdm;
+ }
+ return NULL;
+}
+
/**
* _add_initiator_dep: prevent @oh from smart-idling while @init_oh is active
* @oh: struct omap_hwmod *
@@ -663,13 +674,18 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v)
*/
static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
{
- if (!oh->_clk)
+ struct clockdomain *clkdm, *init_clkdm;
+
+ clkdm = _get_clkdm(oh);
+ init_clkdm = _get_clkdm(init_oh);
+
+ if (!clkdm || !init_clkdm)
return -EINVAL;
- if (oh->_clk->clkdm && oh->_clk->clkdm->flags & CLKDM_NO_AUTODEPS)
+ if (clkdm && clkdm->flags & CLKDM_NO_AUTODEPS)
return 0;
- return clkdm_add_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
+ return clkdm_add_sleepdep(clkdm, init_clkdm);
}
/**
@@ -687,13 +703,18 @@ static int _add_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
*/
static int _del_initiator_dep(struct omap_hwmod *oh, struct omap_hwmod *init_oh)
{
- if (!oh->_clk)
+ struct clockdomain *clkdm, *init_clkdm;
+
+ clkdm = _get_clkdm(oh);
+ init_clkdm = _get_clkdm(init_oh);
+
+ if (!clkdm || !init_clkdm)
return -EINVAL;
- if (oh->_clk->clkdm && oh->_clk->clkdm->flags & CLKDM_NO_AUTODEPS)
+ if (clkdm && clkdm->flags & CLKDM_NO_AUTODEPS)
return 0;
- return clkdm_del_sleepdep(oh->_clk->clkdm, init_oh->_clk->clkdm);
+ return clkdm_del_sleepdep(clkdm, init_clkdm);
}
/**
@@ -727,7 +748,7 @@ static int _init_main_clk(struct omap_hwmod *oh)
*/
clk_prepare(oh->_clk);
- if (!oh->_clk->clkdm)
+ if (!_get_clkdm(oh))
pr_debug("omap_hwmod: %s: missing clockdomain for %s.\n",
oh->name, oh->main_clk);
@@ -1310,6 +1331,7 @@ static void _enable_sysc(struct omap_hwmod *oh)
u8 idlemode, sf;
u32 v;
bool clkdm_act;
+ struct clockdomain *clkdm;
if (!oh->class->sysc)
return;
@@ -1329,11 +1351,9 @@ static void _enable_sysc(struct omap_hwmod *oh)
v = oh->_sysc_cache;
sf = oh->class->sysc->sysc_flags;
+ clkdm = _get_clkdm(oh);
if (sf & SYSC_HAS_SIDLEMODE) {
- clkdm_act = ((oh->clkdm &&
- oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) ||
- (oh->_clk && oh->_clk->clkdm &&
- oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU));
+ clkdm_act = (clkdm && clkdm->flags & CLKDM_ACTIVE_WITH_MPU);
if (clkdm_act && !(oh->class->sysc->idlemodes &
(SIDLE_SMART | SIDLE_SMART_WKUP)))
idlemode = HWMOD_IDLEMODE_FORCE;
@@ -1535,11 +1555,12 @@ static int _init_clocks(struct omap_hwmod *oh, void *data)
pr_debug("omap_hwmod: %s: looking up clocks\n", oh->name);
+ if (soc_ops.init_clkdm)
+ ret |= soc_ops.init_clkdm(oh);
+
ret |= _init_main_clk(oh);
ret |= _init_interface_clks(oh);
ret |= _init_opt_clks(oh);
- if (soc_ops.init_clkdm)
- ret |= soc_ops.init_clkdm(oh);
if (!ret)
oh->_state = _HWMOD_STATE_CLKS_INITED;
@@ -2095,7 +2116,8 @@ static int _enable(struct omap_hwmod *oh)
_enable_sysc(oh);
}
} else {
- _omap4_disable_module(oh);
+ if (soc_ops.disable_module)
+ soc_ops.disable_module(oh);
_disable_clocks(oh);
pr_debug("omap_hwmod: %s: _wait_target_ready: %d\n",
oh->name, r);
@@ -2703,7 +2725,34 @@ static int __init _alloc_linkspace(struct omap_hwmod_ocp_if **ois)
/* Static functions intended only for use in soc_ops field function pointers */
/**
- * _omap2_wait_target_ready - wait for a module to leave slave idle
+ * _omap2xxx_wait_target_ready - wait for a module to leave slave idle
+ * @oh: struct omap_hwmod *
+ *
+ * Wait for a module @oh to leave slave idle. Returns 0 if the module
+ * does not have an IDLEST bit or if the module successfully leaves
+ * slave idle; otherwise, pass along the return value of the
+ * appropriate *_cm*_wait_module_ready() function.
+ */
+static int _omap2xxx_wait_target_ready(struct omap_hwmod *oh)
+{
+ if (!oh)
+ return -EINVAL;
+
+ if (oh->flags & HWMOD_NO_IDLEST)
+ return 0;
+
+ if (!_find_mpu_rt_port(oh))
+ return 0;
+
+ /* XXX check module SIDLEMODE, hardreset status, enabled clocks */
+
+ return omap2xxx_cm_wait_module_ready(oh->prcm.omap2.module_offs,
+ oh->prcm.omap2.idlest_reg_id,
+ oh->prcm.omap2.idlest_idle_bit);
+}
+
+/**
+ * _omap3xxx_wait_target_ready - wait for a module to leave slave idle
* @oh: struct omap_hwmod *
*
* Wait for a module @oh to leave slave idle. Returns 0 if the module
@@ -2711,7 +2760,7 @@ static int __init _alloc_linkspace(struct omap_hwmod_ocp_if **ois)
* slave idle; otherwise, pass along the return value of the
* appropriate *_cm*_wait_module_ready() function.
*/
-static int _omap2_wait_target_ready(struct omap_hwmod *oh)
+static int _omap3xxx_wait_target_ready(struct omap_hwmod *oh)
{
if (!oh)
return -EINVAL;
@@ -2724,9 +2773,9 @@ static int _omap2_wait_target_ready(struct omap_hwmod *oh)
/* XXX check module SIDLEMODE, hardreset status, enabled clocks */
- return omap2_cm_wait_module_ready(oh->prcm.omap2.module_offs,
- oh->prcm.omap2.idlest_reg_id,
- oh->prcm.omap2.idlest_idle_bit);
+ return omap3xxx_cm_wait_module_ready(oh->prcm.omap2.module_offs,
+ oh->prcm.omap2.idlest_reg_id,
+ oh->prcm.omap2.idlest_idle_bit);
}
/**
@@ -3565,10 +3614,15 @@ struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
{
struct clk *c;
struct omap_hwmod_ocp_if *oi;
+ struct clockdomain *clkdm;
+ struct clk_hw_omap *clk;
if (!oh)
return NULL;
+ if (oh->clkdm)
+ return oh->clkdm->pwrdm.ptr;
+
if (oh->_clk) {
c = oh->_clk;
} else {
@@ -3578,11 +3632,12 @@ struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
c = oi->_clk;
}
- if (!c->clkdm)
+ clk = to_clk_hw_omap(__clk_get_hw(c));
+ clkdm = clk->clkdm;
+ if (!clkdm)
return NULL;
- return c->clkdm->pwrdm.ptr;
-
+ return clkdm->pwrdm.ptr;
}
/**
@@ -3994,8 +4049,13 @@ int omap_hwmod_pad_route_irq(struct omap_hwmod *oh, int pad_idx, int irq_idx)
*/
void __init omap_hwmod_init(void)
{
- if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
- soc_ops.wait_target_ready = _omap2_wait_target_ready;
+ if (cpu_is_omap24xx()) {
+ soc_ops.wait_target_ready = _omap2xxx_wait_target_ready;
+ soc_ops.assert_hardreset = _omap2_assert_hardreset;
+ soc_ops.deassert_hardreset = _omap2_deassert_hardreset;
+ soc_ops.is_hardreset_asserted = _omap2_is_hardreset_asserted;
+ } else if (cpu_is_omap34xx()) {
+ soc_ops.wait_target_ready = _omap3xxx_wait_target_ready;
soc_ops.assert_hardreset = _omap2_assert_hardreset;
soc_ops.deassert_hardreset = _omap2_deassert_hardreset;
soc_ops.is_hardreset_asserted = _omap2_is_hardreset_asserted;
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-15 23:55:33 +0200