summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/arm/mach-davinci/clock.h1
-rw-r--r--arch/arm/mach-davinci/include/mach/psc.h1
-rw-r--r--arch/arm/mach-davinci/psc.c2
3 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h
index 0dd22031ec62..48ee4627e188 100644
--- a/arch/arm/mach-davinci/clock.h
+++ b/arch/arm/mach-davinci/clock.h
@@ -111,6 +111,7 @@ struct clk {
#define CLK_PLL BIT(4) /* PLL-derived clock */
#define PRE_PLL BIT(5) /* source is before PLL mult/div */
#define PSC_SWRSTDISABLE BIT(6) /* Disable state is SwRstDisable */
+#define PSC_FORCE BIT(7) /* Force module state transtition */
#define CLK(dev, con, ck) \
{ \
diff --git a/arch/arm/mach-davinci/include/mach/psc.h b/arch/arm/mach-davinci/include/mach/psc.h
index 215fcca6bbdc..6213f0d4211d 100644
--- a/arch/arm/mach-davinci/include/mach/psc.h
+++ b/arch/arm/mach-davinci/include/mach/psc.h
@@ -244,6 +244,7 @@
#define PSC_STATE_ENABLE 3
#define MDSTAT_STATE_MASK 0x1f
+#define MDCTL_FORCE BIT(31)
#ifndef __ASSEMBLER__
diff --git a/arch/arm/mach-davinci/psc.c b/arch/arm/mach-davinci/psc.c
index 823cb1b9e484..1fb6bdff38c1 100644
--- a/arch/arm/mach-davinci/psc.c
+++ b/arch/arm/mach-davinci/psc.c
@@ -75,6 +75,8 @@ void davinci_psc_config(unsigned int domain, unsigned int ctlr,
mdctl = __raw_readl(psc_base + MDCTL + 4 * id);
mdctl &= ~MDSTAT_STATE_MASK;
mdctl |= next_state;
+ if (flags & PSC_FORCE)
+ mdctl |= MDCTL_FORCE;
__raw_writel(mdctl, psc_base + MDCTL + 4 * id);
pdstat = __raw_readl(psc_base + PDSTAT);
OpenPOWER on IntegriCloud