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authorKevin Hilman <khilman@deeprootsystems.com>2009-05-06 01:34:25 +0200
committerKevin Hilman <khilman@deeprootsystems.com>2009-05-28 19:59:10 +0200
commitd3fd3290c4d9f0e40d06fa3a1a8cf164d8cde801 (patch)
treeda09074beebc8b4b43b4c72db5a918e246992e68 /arch/arm/mach-omap2
parentOMAP3: PM: Clear pending PRCM reset flags on init (diff)
downloadlinux-d3fd3290c4d9f0e40d06fa3a1a8cf164d8cde801.tar.xz
linux-d3fd3290c4d9f0e40d06fa3a1a8cf164d8cde801.zip
OMAP3: PM: prevent module wakeups from waking IVA2
By default, prevent functional wakeups from inside a module from waking up the IVA2. Let DSP Bridge code handle this when loaded. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-omap2')
-rw-r--r--arch/arm/mach-omap2/pm34xx.c6
-rw-r--r--arch/arm/mach-omap2/prm.h2
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 8b8a2dd49471..841d4c5ed8be 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -595,6 +595,12 @@ static void __init prcm_setup_regs(void)
prm_write_mod_reg(OMAP3430_IO_EN | OMAP3430_WKUP_EN,
OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET);
+ /* Don't attach IVA interrupts */
+ prm_write_mod_reg(0, WKUP_MOD, OMAP3430_PM_IVAGRPSEL);
+ prm_write_mod_reg(0, CORE_MOD, OMAP3430_PM_IVAGRPSEL1);
+ prm_write_mod_reg(0, CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3);
+ prm_write_mod_reg(0, OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL);
+
/* Clear any pending 'reset' flags */
prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST);
prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST);
diff --git a/arch/arm/mach-omap2/prm.h b/arch/arm/mach-omap2/prm.h
index 7c8e0c42b05d..9937e2814696 100644
--- a/arch/arm/mach-omap2/prm.h
+++ b/arch/arm/mach-omap2/prm.h
@@ -203,9 +203,11 @@
#define OMAP3430_PM_MPUGRPSEL 0x00a4
#define OMAP3430_PM_MPUGRPSEL1 OMAP3430_PM_MPUGRPSEL
+#define OMAP3430ES2_PM_MPUGRPSEL3 0x00f8
#define OMAP3430_PM_IVAGRPSEL 0x00a8
#define OMAP3430_PM_IVAGRPSEL1 OMAP3430_PM_IVAGRPSEL
+#define OMAP3430ES2_PM_IVAGRPSEL3 0x00f4
#define OMAP3430_PM_PREPWSTST 0x00e8