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-rw-r--r--arch/arm/mach-omap2/Kconfig3
-rw-r--r--arch/arm/mach-omap2/omap_hwmod.c2
-rw-r--r--arch/arm/mach-omap2/prm3xxx.c39
3 files changed, 36 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index e7189dcc9309..08d4167cc7c5 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -1,9 +1,6 @@
menu "TI OMAP/AM/DM/DRA Family"
depends on ARCH_MULTI_V6 || ARCH_MULTI_V7
-config ARCH_OMAP
- bool
-
config ARCH_OMAP2
bool "TI OMAP2"
depends on ARCH_MULTI_V6
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 8fd87a3055bf..9e91a4e7519a 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -2065,7 +2065,7 @@ static void _reconfigure_io_chain(void)
spin_lock_irqsave(&io_chain_lock, flags);
- if (cpu_is_omap34xx() && omap3_has_io_chain_ctrl())
+ if (cpu_is_omap34xx())
omap3xxx_prm_reconfigure_io_chain();
else if (cpu_is_omap44xx())
omap44xx_prm_reconfigure_io_chain();
diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c
index 2458be6fc67b..372de3edf4a5 100644
--- a/arch/arm/mach-omap2/prm3xxx.c
+++ b/arch/arm/mach-omap2/prm3xxx.c
@@ -45,7 +45,7 @@ static struct omap_prcm_irq_setup omap3_prcm_irq_setup = {
.ocp_barrier = &omap3xxx_prm_ocp_barrier,
.save_and_clear_irqen = &omap3xxx_prm_save_and_clear_irqen,
.restore_irqen = &omap3xxx_prm_restore_irqen,
- .reconfigure_io_chain = &omap3xxx_prm_reconfigure_io_chain,
+ .reconfigure_io_chain = NULL,
};
/*
@@ -369,15 +369,30 @@ void __init omap3_prm_init_pm(bool has_uart4, bool has_iva)
}
/**
- * omap3xxx_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain
+ * omap3430_pre_es3_1_reconfigure_io_chain - restart wake-up daisy chain
+ *
+ * The ST_IO_CHAIN bit does not exist in 3430 before es3.1. The only
+ * thing we can do is toggle EN_IO bit for earlier omaps.
+ */
+void omap3430_pre_es3_1_reconfigure_io_chain(void)
+{
+ omap2_prm_clear_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD,
+ PM_WKEN);
+ omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD,
+ PM_WKEN);
+ omap2_prm_read_mod_reg(WKUP_MOD, PM_WKEN);
+}
+
+/**
+ * omap3_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain
*
* Clear any previously-latched I/O wakeup events and ensure that the
* I/O wakeup gates are aligned with the current mux settings. Works
* by asserting WUCLKIN, waiting for WUCLKOUT to be asserted, and then
* deasserting WUCLKIN and clearing the ST_IO_CHAIN WKST bit. No
- * return value.
+ * return value. These registers are only available in 3430 es3.1 and later.
*/
-void omap3xxx_prm_reconfigure_io_chain(void)
+void omap3_prm_reconfigure_io_chain(void)
{
int i = 0;
@@ -400,6 +415,15 @@ void omap3xxx_prm_reconfigure_io_chain(void)
}
/**
+ * omap3xxx_prm_reconfigure_io_chain - reconfigure I/O chain
+ */
+void omap3xxx_prm_reconfigure_io_chain(void)
+{
+ if (omap3_prcm_irq_setup.reconfigure_io_chain)
+ omap3_prcm_irq_setup.reconfigure_io_chain();
+}
+
+/**
* omap3xxx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches
*
* Activates the I/O wakeup event latches and allows events logged by
@@ -656,6 +680,13 @@ static int omap3xxx_prm_late_init(void)
if (!(prm_features & PRM_HAS_IO_WAKEUP))
return 0;
+ if (omap3_has_io_chain_ctrl())
+ omap3_prcm_irq_setup.reconfigure_io_chain =
+ omap3_prm_reconfigure_io_chain;
+ else
+ omap3_prcm_irq_setup.reconfigure_io_chain =
+ omap3430_pre_es3_1_reconfigure_io_chain;
+
omap3xxx_prm_enable_io_wakeup();
ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
if (!ret)