#include <linux/slab.h>
#include <linux/bootmem.h>
-#include "common.h"
-#include <plat/cpu.h>
-#include "clockdomain.h"
-#include "powerdomain.h"
#include <plat/clock.h>
#include <plat/omap_hwmod.h>
#include <plat/prcm.h>
+#include "soc.h"
+#include "common.h"
+#include "clockdomain.h"
+#include "powerdomain.h"
#include "cm2xxx_3xxx.h"
#include "cminst44xx.h"
+#include "cm33xx.h"
#include "prm2xxx_3xxx.h"
#include "prm44xx.h"
+#include "prm33xx.h"
#include "prminst44xx.h"
#include "mux.h"
#include "pm.h"
if (!oh->main_clk)
return 0;
- oh->_clk = omap_clk_get_by_name(oh->main_clk);
- if (!oh->_clk) {
+ oh->_clk = clk_get(NULL, oh->main_clk);
+ if (IS_ERR(oh->_clk)) {
pr_warning("omap_hwmod: %s: cannot clk_get main_clk %s\n",
oh->name, oh->main_clk);
return -EINVAL;
}
+ /*
+ * HACK: This needs a re-visit once clk_prepare() is implemented
+ * to do something meaningful. Today its just a no-op.
+ * If clk_prepare() is used at some point to do things like
+ * voltage scaling etc, then this would have to be moved to
+ * some point where subsystems like i2c and pmic become
+ * available.
+ */
+ clk_prepare(oh->_clk);
if (!oh->_clk->clkdm)
pr_warning("omap_hwmod: %s: missing clockdomain for %s.\n",
- oh->main_clk, oh->_clk->name);
+ oh->name, oh->main_clk);
return ret;
}
if (!os->clk)
continue;
- c = omap_clk_get_by_name(os->clk);
- if (!c) {
+ c = clk_get(NULL, os->clk);
+ if (IS_ERR(c)) {
pr_warning("omap_hwmod: %s: cannot clk_get interface_clk %s\n",
oh->name, os->clk);
ret = -EINVAL;
}
os->_clk = c;
+ /*
+ * HACK: This needs a re-visit once clk_prepare() is implemented
+ * to do something meaningful. Today its just a no-op.
+ * If clk_prepare() is used at some point to do things like
+ * voltage scaling etc, then this would have to be moved to
+ * some point where subsystems like i2c and pmic become
+ * available.
+ */
+ clk_prepare(os->_clk);
}
return ret;
int ret = 0;
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) {
- c = omap_clk_get_by_name(oc->clk);
- if (!c) {
+ c = clk_get(NULL, oc->clk);
+ if (IS_ERR(c)) {
pr_warning("omap_hwmod: %s: cannot clk_get opt_clk %s\n",
oh->name, oc->clk);
ret = -EINVAL;
}
oc->_clk = c;
+ /*
+ * HACK: This needs a re-visit once clk_prepare() is implemented
+ * to do something meaningful. Today its just a no-op.
+ * If clk_prepare() is used at some point to do things like
+ * voltage scaling etc, then this would have to be moved to
+ * some point where subsystems like i2c and pmic become
+ * available.
+ */
+ clk_prepare(oc->_clk);
}
return ret;
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
if (oc->_clk) {
pr_debug("omap_hwmod: enable %s:%s\n", oc->role,
- oc->_clk->name);
+ __clk_get_name(oc->_clk));
clk_enable(oc->_clk);
}
}
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
if (oc->_clk) {
pr_debug("omap_hwmod: disable %s:%s\n", oc->role,
- oc->_clk->name);
+ __clk_get_name(oc->_clk));
clk_disable(oc->_clk);
}
}
}
/**
+ * _am33xx_enable_module - enable CLKCTRL modulemode on AM33XX
+ * @oh: struct omap_hwmod *
+ *
+ * Enables the PRCM module mode related to the hwmod @oh.
+ * No return value.
+ */
+static void _am33xx_enable_module(struct omap_hwmod *oh)
+{
+ if (!oh->clkdm || !oh->prcm.omap4.modulemode)
+ return;
+
+ pr_debug("omap_hwmod: %s: %s: %d\n",
+ oh->name, __func__, oh->prcm.omap4.modulemode);
+
+ am33xx_cm_module_enable(oh->prcm.omap4.modulemode, oh->clkdm->cm_inst,
+ oh->clkdm->clkdm_offs,
+ oh->prcm.omap4.clkctrl_offs);
+}
+
+/**
* _omap4_wait_target_disable - wait for a module to be disabled on OMAP4
* @oh: struct omap_hwmod *
*
}
/**
+ * _am33xx_wait_target_disable - wait for a module to be disabled on AM33XX
+ * @oh: struct omap_hwmod *
+ *
+ * Wait for a module @oh to enter slave idle. Returns 0 if the module
+ * does not have an IDLEST bit or if the module successfully enters
+ * slave idle; otherwise, pass along the return value of the
+ * appropriate *_cm*_wait_module_idle() function.
+ */
+static int _am33xx_wait_target_disable(struct omap_hwmod *oh)
+{
+ if (!oh)
+ return -EINVAL;
+
+ if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
+ return 0;
+
+ if (oh->flags & HWMOD_NO_IDLEST)
+ return 0;
+
+ return am33xx_cm_wait_module_idle(oh->clkdm->cm_inst,
+ oh->clkdm->clkdm_offs,
+ oh->prcm.omap4.clkctrl_offs);
+}
+
+/**
* _count_mpu_irqs - count the number of MPU IRQ lines associated with @oh
* @oh: struct omap_hwmod *oh
*
}
/**
+ * _am33xx_disable_module - enable CLKCTRL modulemode on AM33XX
+ * @oh: struct omap_hwmod *
+ *
+ * Disable the PRCM module mode related to the hwmod @oh.
+ * Return EINVAL if the modulemode is not supported and 0 in case of success.
+ */
+static int _am33xx_disable_module(struct omap_hwmod *oh)
+{
+ int v;
+
+ if (!oh->clkdm || !oh->prcm.omap4.modulemode)
+ return -EINVAL;
+
+ pr_debug("omap_hwmod: %s: %s\n", oh->name, __func__);
+
+ am33xx_cm_module_disable(oh->clkdm->cm_inst, oh->clkdm->clkdm_offs,
+ oh->prcm.omap4.clkctrl_offs);
+
+ if (_are_any_hardreset_lines_asserted(oh))
+ return 0;
+
+ v = _am33xx_wait_target_disable(oh);
+ if (v)
+ pr_warn("omap_hwmod: %s: _wait_target_disable failed\n",
+ oh->name);
+
+ return 0;
+}
+
+/**
* _ocp_softreset - reset an omap_hwmod via the OCP_SYSCONFIG bit
* @oh: struct omap_hwmod *
*
_enable_sysc(oh);
}
} else {
+ _omap4_disable_module(oh);
_disable_clocks(oh);
pr_debug("omap_hwmod: %s: _wait_target_ready: %d\n",
oh->name, r);
}
/**
+ * _am33xx_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 _am33xx_wait_target_ready(struct omap_hwmod *oh)
+{
+ if (!oh || !oh->clkdm)
+ return -EINVAL;
+
+ if (oh->flags & HWMOD_NO_IDLEST)
+ return 0;
+
+ if (!_find_mpu_rt_port(oh))
+ return 0;
+
+ /* XXX check module SIDLEMODE, hardreset status */
+
+ return am33xx_cm_wait_module_ready(oh->clkdm->cm_inst,
+ oh->clkdm->clkdm_offs,
+ oh->prcm.omap4.clkctrl_offs);
+}
+
+/**
* _omap2_assert_hardreset - call OMAP2 PRM hardreset fn with hwmod args
* @oh: struct omap_hwmod * to assert hardreset
* @ohri: hardreset line data
oh->prcm.omap4.rstctrl_offs);
}
+/**
+ * _am33xx_assert_hardreset - call AM33XX PRM hardreset fn with hwmod args
+ * @oh: struct omap_hwmod * to assert hardreset
+ * @ohri: hardreset line data
+ *
+ * Call am33xx_prminst_assert_hardreset() with parameters extracted
+ * from the hwmod @oh and the hardreset line data @ohri. Only
+ * intended for use as an soc_ops function pointer. Passes along the
+ * return value from am33xx_prminst_assert_hardreset(). XXX This
+ * function is scheduled for removal when the PRM code is moved into
+ * drivers/.
+ */
+static int _am33xx_assert_hardreset(struct omap_hwmod *oh,
+ struct omap_hwmod_rst_info *ohri)
+
+{
+ return am33xx_prm_assert_hardreset(ohri->rst_shift,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs);
+}
+
+/**
+ * _am33xx_deassert_hardreset - call AM33XX PRM hardreset fn with hwmod args
+ * @oh: struct omap_hwmod * to deassert hardreset
+ * @ohri: hardreset line data
+ *
+ * Call am33xx_prminst_deassert_hardreset() with parameters extracted
+ * from the hwmod @oh and the hardreset line data @ohri. Only
+ * intended for use as an soc_ops function pointer. Passes along the
+ * return value from am33xx_prminst_deassert_hardreset(). XXX This
+ * function is scheduled for removal when the PRM code is moved into
+ * drivers/.
+ */
+static int _am33xx_deassert_hardreset(struct omap_hwmod *oh,
+ struct omap_hwmod_rst_info *ohri)
+{
+ if (ohri->st_shift)
+ pr_err("omap_hwmod: %s: %s: hwmod data error: OMAP4 does not support st_shift\n",
+ oh->name, ohri->name);
+
+ return am33xx_prm_deassert_hardreset(ohri->rst_shift,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs,
+ oh->prcm.omap4.rstst_offs);
+}
+
+/**
+ * _am33xx_is_hardreset_asserted - call AM33XX PRM hardreset fn with hwmod args
+ * @oh: struct omap_hwmod * to test hardreset
+ * @ohri: hardreset line data
+ *
+ * Call am33xx_prminst_is_hardreset_asserted() with parameters
+ * extracted from the hwmod @oh and the hardreset line data @ohri.
+ * Only intended for use as an soc_ops function pointer. Passes along
+ * the return value from am33xx_prminst_is_hardreset_asserted(). XXX
+ * This function is scheduled for removal when the PRM code is moved
+ * into drivers/.
+ */
+static int _am33xx_is_hardreset_asserted(struct omap_hwmod *oh,
+ struct omap_hwmod_rst_info *ohri)
+{
+ return am33xx_prm_is_hardreset_asserted(ohri->rst_shift,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs);
+}
+
/* Public functions */
u32 omap_hwmod_read(struct omap_hwmod *oh, u16 reg_offs)
soc_ops.deassert_hardreset = _omap4_deassert_hardreset;
soc_ops.is_hardreset_asserted = _omap4_is_hardreset_asserted;
soc_ops.init_clkdm = _init_clkdm;
+ } else if (soc_is_am33xx()) {
+ soc_ops.enable_module = _am33xx_enable_module;
+ soc_ops.disable_module = _am33xx_disable_module;
+ soc_ops.wait_target_ready = _am33xx_wait_target_ready;
+ soc_ops.assert_hardreset = _am33xx_assert_hardreset;
+ soc_ops.deassert_hardreset = _am33xx_deassert_hardreset;
+ soc_ops.is_hardreset_asserted = _am33xx_is_hardreset_asserted;
+ soc_ops.init_clkdm = _init_clkdm;
} else {
WARN(1, "omap_hwmod: unknown SoC type\n");
}