#include <linux/mutex.h>
#include <linux/bootmem.h>
+#include <plat/common.h>
#include <plat/cpu.h>
#include <plat/clockdomain.h>
#include <plat/powerdomain.h>
return 0;
}
+/**
+ * _set_module_autoidle: set the OCP_SYSCONFIG AUTOIDLE field in @v
+ * @oh: struct omap_hwmod *
+ * @autoidle: desired AUTOIDLE bitfield value (0 or 1)
+ * @v: pointer to register contents to modify
+ *
+ * Update the module autoidle bit in @v to be @autoidle for the @oh
+ * hwmod. The autoidle bit controls whether the module can gate
+ * internal clocks automatically when it isn't doing anything; the
+ * exact function of this bit varies on a per-module basis. This
+ * function does not write to the hardware. Returns -EINVAL upon
+ * error or 0 upon success.
+ */
+static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle,
+ u32 *v)
+{
+ if (!oh->sysconfig ||
+ !(oh->sysconfig->sysc_flags & SYSC_HAS_AUTOIDLE))
+ return -EINVAL;
+
+ *v &= ~SYSC_AUTOIDLE_MASK;
+ *v |= autoidle << SYSC_AUTOIDLE_SHIFT;
+
+ return 0;
+}
+
/**
* _enable_wakeup: set OCP_SYSCONFIG.ENAWAKEUP bit in the hardware
* @oh: struct omap_hwmod *
ret = -EINVAL;
oh->_clk = c;
+ WARN(!c->clkdm, "omap_hwmod: %s: missing clockdomain for %s.\n",
+ oh->clkdev_con_id, c->name);
+
return ret;
}
_set_master_standbymode(oh, idlemode, &v);
}
- /* XXX OCP AUTOIDLE bit? */
+ if (oh->sysconfig->sysc_flags & SYSC_HAS_AUTOIDLE) {
+ idlemode = (oh->flags & HWMOD_NO_OCP_AUTOIDLE) ?
+ 0 : 1;
+ _set_module_autoidle(oh, idlemode, &v);
+ }
+
+ /* XXX OCP ENAWAKEUP bit? */
+ /*
+ * XXX The clock framework should handle this, by
+ * calling into this code. But this must wait until the
+ * clock structures are tagged with omap_hwmod entries
+ */
if (oh->flags & HWMOD_SET_DEFAULT_CLOCKACT &&
oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY)
_set_clockactivity(oh, oh->sysconfig->clockact, &v);
if (oh->sysconfig->sysc_flags & SYSC_HAS_MIDLEMODE)
_set_master_standbymode(oh, HWMOD_IDLEMODE_FORCE, &v);
- /* XXX clear OCP AUTOIDLE bit? */
+ if (oh->sysconfig->sysc_flags & SYSC_HAS_AUTOIDLE)
+ _set_module_autoidle(oh, 1, &v);
_write_sysconfig(v, oh);
}
static int _reset(struct omap_hwmod *oh)
{
u32 r, v;
- int c;
+ int c = 0;
if (!oh->sysconfig ||
!(oh->sysconfig->sysc_flags & SYSC_HAS_SOFTRESET) ||
return r;
_write_sysconfig(v, oh);
- c = 0;
- while (c < MAX_MODULE_RESET_WAIT &&
- !(omap_hwmod_readl(oh, oh->sysconfig->syss_offs) &
- SYSS_RESETDONE_MASK)) {
- udelay(1);
- c++;
- }
+ omap_test_timeout((omap_hwmod_readl(oh, oh->sysconfig->syss_offs) &
+ SYSS_RESETDONE_MASK),
+ MAX_MODULE_RESET_WAIT, c);
if (c == MAX_MODULE_RESET_WAIT)
WARN(1, "omap_hwmod: %s: failed to reset in %d usec\n",
return 0;
}
-/**
- * _write_clockact_lock - set the module's clockactivity bits
- * @oh: struct omap_hwmod *
- * @clockact: CLOCKACTIVITY field bits
- *
- * Writes the CLOCKACTIVITY bits @clockact to the hwmod @oh
- * OCP_SYSCONFIG register. Returns -EINVAL if the hwmod is in the
- * wrong state or returns 0.
- */
-static int _write_clockact_lock(struct omap_hwmod *oh, u8 clockact)
-{
- u32 v;
-
- if (!oh->sysconfig ||
- !(oh->sysconfig->sysc_flags & SYSC_HAS_CLOCKACTIVITY))
- return -EINVAL;
-
- mutex_lock(&omap_hwmod_mutex);
- v = oh->_sysc_cache;
- _set_clockactivity(oh, clockact, &v);
- _write_sysconfig(v, oh);
- mutex_unlock(&omap_hwmod_mutex);
-
- return 0;
-}
-
-
/**
* _setup - do initial configuration of omap_hwmod
* @oh: struct omap_hwmod *
_enable(oh);
- if (!(oh->flags & HWMOD_INIT_NO_RESET))
- _reset(oh);
-
- /* XXX OCP AUTOIDLE bit? */
- /* XXX OCP ENAWAKEUP bit? */
+ if (!(oh->flags & HWMOD_INIT_NO_RESET)) {
+ /*
+ * XXX Do the OCP_SYSCONFIG bits need to be
+ * reprogrammed after a reset? If not, then this can
+ * be removed. If they do, then probably the
+ * _enable() function should be split to avoid the
+ * rewrite of the OCP_SYSCONFIG register.
+ */
+ if (oh->sysconfig) {
+ _update_sysc_cache(oh);
+ _sysc_enable(oh);
+ }
+ }
if (!(oh->flags & HWMOD_INIT_NO_IDLE))
_idle(oh);
/* For each IRQ, DMA, memory area, fill in array.*/
for (i = 0; i < oh->mpu_irqs_cnt; i++) {
- (res + r)->start = *(oh->mpu_irqs + i);
- (res + r)->end = *(oh->mpu_irqs + i);
+ (res + r)->name = (oh->mpu_irqs + i)->name;
+ (res + r)->start = (oh->mpu_irqs + i)->irq;
+ (res + r)->end = (oh->mpu_irqs + i)->irq;
(res + r)->flags = IORESOURCE_IRQ;
r++;
}
return _del_initiator_dep(oh, init_oh);
}
-/**
- * omap_hwmod_set_clockact_none - set clockactivity test to BOTH
- * @oh: struct omap_hwmod *
- *
- * On some modules, this function can affect the wakeup latency vs.
- * power consumption balance. Intended to be called by the
- * omap_device layer. Passes along the return value from
- * _write_clockact_lock().
- */
-int omap_hwmod_set_clockact_both(struct omap_hwmod *oh)
-{
- return _write_clockact_lock(oh, CLOCKACT_TEST_BOTH);
-}
-
-/**
- * omap_hwmod_set_clockact_none - set clockactivity test to MAIN
- * @oh: struct omap_hwmod *
- *
- * On some modules, this function can affect the wakeup latency vs.
- * power consumption balance. Intended to be called by the
- * omap_device layer. Passes along the return value from
- * _write_clockact_lock().
- */
-int omap_hwmod_set_clockact_main(struct omap_hwmod *oh)
-{
- return _write_clockact_lock(oh, CLOCKACT_TEST_MAIN);
-}
-
-/**
- * omap_hwmod_set_clockact_none - set clockactivity test to ICLK
- * @oh: struct omap_hwmod *
- *
- * On some modules, this function can affect the wakeup latency vs.
- * power consumption balance. Intended to be called by the
- * omap_device layer. Passes along the return value from
- * _write_clockact_lock().
- */
-int omap_hwmod_set_clockact_iclk(struct omap_hwmod *oh)
-{
- return _write_clockact_lock(oh, CLOCKACT_TEST_ICLK);
-}
-
-/**
- * omap_hwmod_set_clockact_none - set clockactivity test to NONE
- * @oh: struct omap_hwmod *
- *
- * On some modules, this function can affect the wakeup latency vs.
- * power consumption balance. Intended to be called by the
- * omap_device layer. Passes along the return value from
- * _write_clockact_lock().
- */
-int omap_hwmod_set_clockact_none(struct omap_hwmod *oh)
-{
- return _write_clockact_lock(oh, CLOCKACT_TEST_NONE);
-}
-
/**
* omap_hwmod_enable_wakeup - allow device to wake up the system
* @oh: struct omap_hwmod *
git.openpandora.org / pandora-kernel.git / blobdiff