summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r--arch/arm/mach-omap2/cclock33xx_data.c8
-rw-r--r--arch/arm/mach-omap2/dpll3xxx.c19
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c4
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.h6
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_33xx_data.c15
-rw-r--r--arch/arm/mach-omap2/powerdomain.c18
6 files changed, 42 insertions, 28 deletions
diff --git a/arch/arm/mach-omap2/cclock33xx_data.c b/arch/arm/mach-omap2/cclock33xx_data.c
index 476b82066cb6..7f091c85384e 100644
--- a/arch/arm/mach-omap2/cclock33xx_data.c
+++ b/arch/arm/mach-omap2/cclock33xx_data.c
@@ -958,6 +958,14 @@ int __init am33xx_clk_init(void)
clk_set_parent(&timer3_fck, &sys_clkin_ck);
clk_set_parent(&timer6_fck, &sys_clkin_ck);
+ /*
+ * The On-Chip 32K RC Osc clock is not an accurate clock-source as per
+ * the design/spec, so as a result, for example, timer which supposed
+ * to get expired @60Sec, but will expire somewhere ~@40Sec, which is
+ * not expected by any use-case, so change WDT1 clock source to PRCM
+ * 32KHz clock.
+ */
+ clk_set_parent(&wdt1_fck, &clkdiv32k_ick);
return 0;
}
diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c
index 3aed4b0b9563..6e9873ff1844 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/arch/arm/mach-omap2/dpll3xxx.c
@@ -480,20 +480,22 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
if (!dd)
return -EINVAL;
- __clk_prepare(dd->clk_bypass);
- clk_enable(dd->clk_bypass);
- __clk_prepare(dd->clk_ref);
- clk_enable(dd->clk_ref);
-
if (__clk_get_rate(dd->clk_bypass) == rate &&
(dd->modes & (1 << DPLL_LOW_POWER_BYPASS))) {
pr_debug("%s: %s: set rate: entering bypass.\n",
__func__, __clk_get_name(hw->clk));
+ __clk_prepare(dd->clk_bypass);
+ clk_enable(dd->clk_bypass);
ret = _omap3_noncore_dpll_bypass(clk);
if (!ret)
new_parent = dd->clk_bypass;
+ clk_disable(dd->clk_bypass);
+ __clk_unprepare(dd->clk_bypass);
} else {
+ __clk_prepare(dd->clk_ref);
+ clk_enable(dd->clk_ref);
+
if (dd->last_rounded_rate != rate)
rate = __clk_round_rate(hw->clk, rate);
@@ -514,6 +516,8 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
ret = omap3_noncore_dpll_program(clk, freqsel);
if (!ret)
new_parent = dd->clk_ref;
+ clk_disable(dd->clk_ref);
+ __clk_unprepare(dd->clk_ref);
}
/*
* FIXME - this is all wrong. common code handles reparenting and
@@ -525,11 +529,6 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
if (!ret)
__clk_reparent(hw->clk, new_parent);
- clk_disable(dd->clk_ref);
- __clk_unprepare(dd->clk_ref);
- clk_disable(dd->clk_bypass);
- __clk_unprepare(dd->clk_bypass);
-
return 0;
}
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index c2c798c08c2b..e5cafed8ef25 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -610,8 +610,6 @@ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v)
/* XXX test pwrdm_get_wken for this hwmod's subsystem */
- oh->_int_flags |= _HWMOD_WAKEUP_ENABLED;
-
return 0;
}
@@ -645,8 +643,6 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v)
/* XXX test pwrdm_get_wken for this hwmod's subsystem */
- oh->_int_flags &= ~_HWMOD_WAKEUP_ENABLED;
-
return 0;
}
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index d43d9b608eda..28f4dea0512e 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -477,15 +477,13 @@ struct omap_hwmod_omap4_prcm {
* These are for internal use only and are managed by the omap_hwmod code.
*
* _HWMOD_NO_MPU_PORT: no path exists for the MPU to write to this module
- * _HWMOD_WAKEUP_ENABLED: set when the omap_hwmod code has enabled ENAWAKEUP
* _HWMOD_SYSCONFIG_LOADED: set when the OCP_SYSCONFIG value has been cached
* _HWMOD_SKIP_ENABLE: set if hwmod enabled during init (HWMOD_INIT_NO_IDLE) -
* causes the first call to _enable() to only update the pinmux
*/
#define _HWMOD_NO_MPU_PORT (1 << 0)
-#define _HWMOD_WAKEUP_ENABLED (1 << 1)
-#define _HWMOD_SYSCONFIG_LOADED (1 << 2)
-#define _HWMOD_SKIP_ENABLE (1 << 3)
+#define _HWMOD_SYSCONFIG_LOADED (1 << 1)
+#define _HWMOD_SKIP_ENABLE (1 << 2)
/*
* omap_hwmod._state definitions
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index 26eee4a556ad..31bea1ce3de1 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -28,6 +28,7 @@
#include "prm-regbits-33xx.h"
#include "i2c.h"
#include "mmc.h"
+#include "wd_timer.h"
/*
* IP blocks
@@ -2087,8 +2088,21 @@ static struct omap_hwmod am33xx_uart6_hwmod = {
};
/* 'wd_timer' class */
+static struct omap_hwmod_class_sysconfig wdt_sysc = {
+ .rev_offs = 0x0,
+ .sysc_offs = 0x10,
+ .syss_offs = 0x14,
+ .sysc_flags = (SYSC_HAS_EMUFREE | SYSC_HAS_SIDLEMODE |
+ SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+ .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+ SIDLE_SMART_WKUP),
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
static struct omap_hwmod_class am33xx_wd_timer_hwmod_class = {
.name = "wd_timer",
+ .sysc = &wdt_sysc,
+ .pre_shutdown = &omap2_wd_timer_disable,
};
/*
@@ -2099,6 +2113,7 @@ static struct omap_hwmod am33xx_wd_timer1_hwmod = {
.name = "wd_timer2",
.class = &am33xx_wd_timer_hwmod_class,
.clkdm_name = "l4_wkup_clkdm",
+ .flags = HWMOD_SWSUP_SIDLE,
.main_clk = "wdt1_fck",
.prcm = {
.omap4 = {
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 8e61d80bf6b3..89cad4a605dd 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -52,7 +52,6 @@ enum {
#define ALREADYACTIVE_SWITCH 0
#define FORCEWAKEUP_SWITCH 1
#define LOWPOWERSTATE_SWITCH 2
-#define ERROR_SWITCH 3
/* pwrdm_list contains all registered struct powerdomains */
static LIST_HEAD(pwrdm_list);
@@ -233,10 +232,7 @@ static u8 _pwrdm_save_clkdm_state_and_activate(struct powerdomain *pwrdm,
{
u8 sleep_switch;
- if (curr_pwrst < 0) {
- WARN_ON(1);
- sleep_switch = ERROR_SWITCH;
- } else if (curr_pwrst < PWRDM_POWER_ON) {
+ if (curr_pwrst < PWRDM_POWER_ON) {
if (curr_pwrst > pwrst &&
pwrdm->flags & PWRDM_HAS_LOWPOWERSTATECHANGE &&
arch_pwrdm->pwrdm_set_lowpwrstchange) {
@@ -1091,7 +1087,8 @@ int pwrdm_post_transition(struct powerdomain *pwrdm)
*/
int omap_set_pwrdm_state(struct powerdomain *pwrdm, u8 pwrst)
{
- u8 curr_pwrst, next_pwrst, sleep_switch;
+ u8 next_pwrst, sleep_switch;
+ int curr_pwrst;
int ret = 0;
bool hwsup = false;
@@ -1107,16 +1104,17 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u8 pwrst)
pwrdm_lock(pwrdm);
curr_pwrst = pwrdm_read_pwrst(pwrdm);
+ if (curr_pwrst < 0) {
+ ret = -EINVAL;
+ goto osps_out;
+ }
+
next_pwrst = pwrdm_read_next_pwrst(pwrdm);
if (curr_pwrst == pwrst && next_pwrst == pwrst)
goto osps_out;
sleep_switch = _pwrdm_save_clkdm_state_and_activate(pwrdm, curr_pwrst,
pwrst, &hwsup);
- if (sleep_switch == ERROR_SWITCH) {
- ret = -EINVAL;
- goto osps_out;
- }
ret = pwrdm_set_next_pwrst(pwrdm, pwrst);
if (ret)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 18:26:17 +0000