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Diffstat (limited to 'arch/arm/mach-omap2/omap_hwmod.c')
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c302
1 files changed, 91 insertions, 211 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 9e91a4e7519a..cbb908dc5cf0 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -153,7 +153,6 @@
#include "powerdomain.h"
#include "cm2xxx.h"
#include "cm3xxx.h"
-#include "cminst44xx.h"
#include "cm33xx.h"
#include "prm.h"
#include "prm3xxx.h"
@@ -769,8 +768,8 @@ static int _init_main_clk(struct omap_hwmod *oh)
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);
+ pr_warn("omap_hwmod: %s: cannot clk_get main_clk %s\n",
+ oh->name, oh->main_clk);
return -EINVAL;
}
/*
@@ -814,8 +813,8 @@ static int _init_interface_clks(struct omap_hwmod *oh)
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);
+ pr_warn("omap_hwmod: %s: cannot clk_get interface_clk %s\n",
+ oh->name, os->clk);
ret = -EINVAL;
continue;
}
@@ -851,8 +850,8 @@ static int _init_opt_clks(struct omap_hwmod *oh)
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) {
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);
+ pr_warn("omap_hwmod: %s: cannot clk_get opt_clk %s\n",
+ oh->name, oc->clk);
ret = -EINVAL;
continue;
}
@@ -979,31 +978,9 @@ static void _omap4_enable_module(struct omap_hwmod *oh)
pr_debug("omap_hwmod: %s: %s: %d\n",
oh->name, __func__, oh->prcm.omap4.modulemode);
- omap4_cminst_module_enable(oh->prcm.omap4.modulemode,
- oh->clkdm->prcm_partition,
- oh->clkdm->cm_inst,
- oh->clkdm->clkdm_offs,
- oh->prcm.omap4.clkctrl_offs);
-}
-
-/**
- * _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);
+ omap_cm_module_enable(oh->prcm.omap4.modulemode,
+ oh->clkdm->prcm_partition,
+ oh->clkdm->cm_inst, oh->prcm.omap4.clkctrl_offs);
}
/**
@@ -1026,35 +1003,9 @@ static int _omap4_wait_target_disable(struct omap_hwmod *oh)
if (oh->flags & HWMOD_NO_IDLEST)
return 0;
- return omap4_cminst_wait_module_idle(oh->clkdm->prcm_partition,
- oh->clkdm->cm_inst,
- oh->clkdm->clkdm_offs,
- oh->prcm.omap4.clkctrl_offs);
-}
-
-/**
- * _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);
+ return omap_cm_wait_module_idle(oh->clkdm->prcm_partition,
+ oh->clkdm->cm_inst,
+ oh->prcm.omap4.clkctrl_offs, 0);
}
/**
@@ -1576,7 +1527,7 @@ static int _init_clkdm(struct omap_hwmod *oh)
oh->clkdm = clkdm_lookup(oh->clkdm_name);
if (!oh->clkdm) {
- pr_warning("omap_hwmod: %s: could not associate to clkdm %s\n",
+ pr_warn("omap_hwmod: %s: could not associate to clkdm %s\n",
oh->name, oh->clkdm_name);
return 0;
}
@@ -1616,7 +1567,7 @@ static int _init_clocks(struct omap_hwmod *oh, void *data)
if (!ret)
oh->_state = _HWMOD_STATE_CLKS_INITED;
else
- pr_warning("omap_hwmod: %s: cannot _init_clocks\n", oh->name);
+ pr_warn("omap_hwmod: %s: cannot _init_clocks\n", oh->name);
return ret;
}
@@ -1739,7 +1690,7 @@ static int _deassert_hardreset(struct omap_hwmod *oh, const char *name)
_disable_clocks(oh);
if (ret == -EBUSY)
- pr_warning("omap_hwmod: %s: failed to hardreset\n", oh->name);
+ pr_warn("omap_hwmod: %s: failed to hardreset\n", oh->name);
if (!ret) {
/*
@@ -1859,10 +1810,8 @@ static int _omap4_disable_module(struct omap_hwmod *oh)
pr_debug("omap_hwmod: %s: %s\n", oh->name, __func__);
- omap4_cminst_module_disable(oh->clkdm->prcm_partition,
- oh->clkdm->cm_inst,
- oh->clkdm->clkdm_offs,
- oh->prcm.omap4.clkctrl_offs);
+ omap_cm_module_disable(oh->clkdm->prcm_partition, oh->clkdm->cm_inst,
+ oh->prcm.omap4.clkctrl_offs);
v = _omap4_wait_target_disable(oh);
if (v)
@@ -1873,36 +1822,6 @@ static int _omap4_disable_module(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__);
-
- if (_are_any_hardreset_lines_asserted(oh))
- return 0;
-
- am33xx_cm_module_disable(oh->clkdm->cm_inst, oh->clkdm->clkdm_offs,
- oh->prcm.omap4.clkctrl_offs);
-
- 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 *
*
@@ -1953,8 +1872,8 @@ static int _ocp_softreset(struct omap_hwmod *oh)
c = _wait_softreset_complete(oh);
if (c == MAX_MODULE_SOFTRESET_WAIT) {
- pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n",
- oh->name, MAX_MODULE_SOFTRESET_WAIT);
+ pr_warn("omap_hwmod: %s: softreset failed (waited %d usec)\n",
+ oh->name, MAX_MODULE_SOFTRESET_WAIT);
ret = -ETIMEDOUT;
goto dis_opt_clks;
} else {
@@ -2065,10 +1984,7 @@ static void _reconfigure_io_chain(void)
spin_lock_irqsave(&io_chain_lock, flags);
- if (cpu_is_omap34xx())
- omap3xxx_prm_reconfigure_io_chain();
- else if (cpu_is_omap44xx())
- omap44xx_prm_reconfigure_io_chain();
+ omap_prm_reconfigure_io_chain();
spin_unlock_irqrestore(&io_chain_lock, flags);
}
@@ -2185,7 +2101,7 @@ static int _enable(struct omap_hwmod *oh)
oh->mux->pads_dynamic))) {
omap_hwmod_mux(oh->mux, _HWMOD_STATE_ENABLED);
_reconfigure_io_chain();
- } else if (oh->flags & HWMOD_FORCE_MSTANDBY) {
+ } else if (oh->flags & HWMOD_RECONFIG_IO_CHAIN) {
_reconfigure_io_chain();
}
@@ -2293,7 +2209,7 @@ static int _idle(struct omap_hwmod *oh)
if (oh->mux && oh->mux->pads_dynamic) {
omap_hwmod_mux(oh->mux, _HWMOD_STATE_IDLE);
_reconfigure_io_chain();
- } else if (oh->flags & HWMOD_FORCE_MSTANDBY) {
+ } else if (oh->flags & HWMOD_RECONFIG_IO_CHAIN) {
_reconfigure_io_chain();
}
@@ -2618,8 +2534,8 @@ static int __init _setup_reset(struct omap_hwmod *oh)
if (oh->rst_lines_cnt == 0) {
r = _enable(oh);
if (r) {
- pr_warning("omap_hwmod: %s: cannot be enabled for reset (%d)\n",
- oh->name, oh->_state);
+ pr_warn("omap_hwmod: %s: cannot be enabled for reset (%d)\n",
+ oh->name, oh->_state);
return -EINVAL;
}
}
@@ -2719,11 +2635,33 @@ static int __init _setup(struct omap_hwmod *oh, void *data)
if (oh->_state != _HWMOD_STATE_INITIALIZED)
return 0;
+ if (oh->parent_hwmod) {
+ int r;
+
+ r = _enable(oh->parent_hwmod);
+ WARN(r, "hwmod: %s: setup: failed to enable parent hwmod %s\n",
+ oh->name, oh->parent_hwmod->name);
+ }
+
_setup_iclk_autoidle(oh);
if (!_setup_reset(oh))
_setup_postsetup(oh);
+ if (oh->parent_hwmod) {
+ u8 postsetup_state;
+
+ postsetup_state = oh->parent_hwmod->_postsetup_state;
+
+ if (postsetup_state == _HWMOD_STATE_IDLE)
+ _idle(oh->parent_hwmod);
+ else if (postsetup_state == _HWMOD_STATE_DISABLED)
+ _shutdown(oh->parent_hwmod);
+ else if (postsetup_state != _HWMOD_STATE_ENABLED)
+ WARN(1, "hwmod: %s: unknown postsetup state %d! defaulting to enabled\n",
+ oh->parent_hwmod->name, postsetup_state);
+ }
+
return 0;
}
@@ -2832,12 +2770,10 @@ static int __init _add_link(struct omap_hwmod_ocp_if *oi)
_alloc_links(&ml, &sl);
ml->ocp_if = oi;
- INIT_LIST_HEAD(&ml->node);
list_add(&ml->node, &oi->master->master_ports);
oi->master->masters_cnt++;
sl->ocp_if = oi;
- INIT_LIST_HEAD(&sl->node);
list_add(&sl->node, &oi->slave->slave_ports);
oi->slave->slaves_cnt++;
@@ -2927,7 +2863,7 @@ static int __init _alloc_linkspace(struct omap_hwmod_ocp_if **ois)
/* Static functions intended only for use in soc_ops field function pointers */
/**
- * _omap2xxx_wait_target_ready - wait for a module to leave slave idle
+ * _omap2xxx_3xxx_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
@@ -2935,7 +2871,7 @@ 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 _omap2xxx_wait_target_ready(struct omap_hwmod *oh)
+static int _omap2xxx_3xxx_wait_target_ready(struct omap_hwmod *oh)
{
if (!oh)
return -EINVAL;
@@ -2948,36 +2884,9 @@ static int _omap2xxx_wait_target_ready(struct omap_hwmod *oh)
/* 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
- * 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 _omap3xxx_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 omap3xxx_cm_wait_module_ready(oh->prcm.omap2.module_offs,
- oh->prcm.omap2.idlest_reg_id,
- oh->prcm.omap2.idlest_idle_bit);
+ return omap_cm_wait_module_ready(0, oh->prcm.omap2.module_offs,
+ oh->prcm.omap2.idlest_reg_id,
+ oh->prcm.omap2.idlest_idle_bit);
}
/**
@@ -3002,37 +2911,9 @@ static int _omap4_wait_target_ready(struct omap_hwmod *oh)
/* XXX check module SIDLEMODE, hardreset status */
- return omap4_cminst_wait_module_ready(oh->clkdm->prcm_partition,
- oh->clkdm->cm_inst,
- oh->clkdm->clkdm_offs,
- oh->prcm.omap4.clkctrl_offs);
-}
-
-/**
- * _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);
+ return omap_cm_wait_module_ready(oh->clkdm->prcm_partition,
+ oh->clkdm->cm_inst,
+ oh->prcm.omap4.clkctrl_offs, 0);
}
/**
@@ -3049,8 +2930,8 @@ static int _am33xx_wait_target_ready(struct omap_hwmod *oh)
static int _omap2_assert_hardreset(struct omap_hwmod *oh,
struct omap_hwmod_rst_info *ohri)
{
- return omap2_prm_assert_hardreset(oh->prcm.omap2.module_offs,
- ohri->rst_shift);
+ return omap_prm_assert_hardreset(ohri->rst_shift, 0,
+ oh->prcm.omap2.module_offs, 0);
}
/**
@@ -3067,9 +2948,8 @@ static int _omap2_assert_hardreset(struct omap_hwmod *oh,
static int _omap2_deassert_hardreset(struct omap_hwmod *oh,
struct omap_hwmod_rst_info *ohri)
{
- return omap2_prm_deassert_hardreset(oh->prcm.omap2.module_offs,
- ohri->rst_shift,
- ohri->st_shift);
+ return omap_prm_deassert_hardreset(ohri->rst_shift, ohri->st_shift, 0,
+ oh->prcm.omap2.module_offs, 0, 0);
}
/**
@@ -3087,8 +2967,8 @@ static int _omap2_deassert_hardreset(struct omap_hwmod *oh,
static int _omap2_is_hardreset_asserted(struct omap_hwmod *oh,
struct omap_hwmod_rst_info *ohri)
{
- return omap2_prm_is_hardreset_asserted(oh->prcm.omap2.module_offs,
- ohri->st_shift);
+ return omap_prm_is_hardreset_asserted(ohri->st_shift, 0,
+ oh->prcm.omap2.module_offs, 0);
}
/**
@@ -3109,10 +2989,10 @@ static int _omap4_assert_hardreset(struct omap_hwmod *oh,
if (!oh->clkdm)
return -EINVAL;
- return omap4_prminst_assert_hardreset(ohri->rst_shift,
- oh->clkdm->pwrdm.ptr->prcm_partition,
- oh->clkdm->pwrdm.ptr->prcm_offs,
- oh->prcm.omap4.rstctrl_offs);
+ return omap_prm_assert_hardreset(ohri->rst_shift,
+ oh->clkdm->pwrdm.ptr->prcm_partition,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs);
}
/**
@@ -3136,10 +3016,10 @@ static int _omap4_deassert_hardreset(struct omap_hwmod *oh,
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 omap4_prminst_deassert_hardreset(ohri->rst_shift,
- oh->clkdm->pwrdm.ptr->prcm_partition,
- oh->clkdm->pwrdm.ptr->prcm_offs,
- oh->prcm.omap4.rstctrl_offs);
+ return omap_prm_deassert_hardreset(ohri->rst_shift, 0,
+ oh->clkdm->pwrdm.ptr->prcm_partition,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs, 0);
}
/**
@@ -3160,10 +3040,11 @@ static int _omap4_is_hardreset_asserted(struct omap_hwmod *oh,
if (!oh->clkdm)
return -EINVAL;
- return omap4_prminst_is_hardreset_asserted(ohri->rst_shift,
- oh->clkdm->pwrdm.ptr->prcm_partition,
- oh->clkdm->pwrdm.ptr->prcm_offs,
- oh->prcm.omap4.rstctrl_offs);
+ return omap_prm_is_hardreset_asserted(ohri->rst_shift,
+ oh->clkdm->pwrdm.ptr->
+ prcm_partition,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs);
}
/**
@@ -3182,9 +3063,9 @@ 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);
+ return omap_prm_assert_hardreset(ohri->rst_shift, 0,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs);
}
/**
@@ -3202,11 +3083,10 @@ static int _am33xx_assert_hardreset(struct omap_hwmod *oh,
static int _am33xx_deassert_hardreset(struct omap_hwmod *oh,
struct omap_hwmod_rst_info *ohri)
{
- return am33xx_prm_deassert_hardreset(ohri->rst_shift,
- ohri->st_shift,
- oh->clkdm->pwrdm.ptr->prcm_offs,
- oh->prcm.omap4.rstctrl_offs,
- oh->prcm.omap4.rstst_offs);
+ return omap_prm_deassert_hardreset(ohri->rst_shift, ohri->st_shift, 0,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs,
+ oh->prcm.omap4.rstst_offs);
}
/**
@@ -3224,9 +3104,9 @@ static int _am33xx_deassert_hardreset(struct omap_hwmod *oh,
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);
+ return omap_prm_is_hardreset_asserted(ohri->rst_shift, 0,
+ oh->clkdm->pwrdm.ptr->prcm_offs,
+ oh->prcm.omap4.rstctrl_offs);
}
/* Public functions */
@@ -4234,12 +4114,12 @@ 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()) {
- soc_ops.wait_target_ready = _omap2xxx_wait_target_ready;
+ soc_ops.wait_target_ready = _omap2xxx_3xxx_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.wait_target_ready = _omap2xxx_3xxx_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;
@@ -4258,14 +4138,14 @@ void __init omap_hwmod_init(void)
soc_ops.enable_module = _omap4_enable_module;
soc_ops.disable_module = _omap4_disable_module;
soc_ops.wait_target_ready = _omap4_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.assert_hardreset = _omap4_assert_hardreset;
+ 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.enable_module = _omap4_enable_module;
+ soc_ops.disable_module = _omap4_disable_module;
+ soc_ops.wait_target_ready = _omap4_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;