Merge commit 'v2.6.27-rc6' into timers/hpet

1 files changed, 61 insertions, 7 deletions

diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index 64d746114e4b..5fa536727c61 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -71,6 +71,7 @@ atomic_t num_spurious;
 
 #ifdef CONFIG_PM
 unsigned long bfin_sic_iwr[3];	/* Up to 3 SIC_IWRx registers */
+unsigned vr_wakeup;
 #endif
 
 struct ivgx {
@@ -184,17 +185,56 @@ static void bfin_internal_unmask_irq(unsigned int irq)
 #ifdef CONFIG_PM
 int bfin_internal_set_wake(unsigned int irq, unsigned int state)
 {
-	unsigned bank, bit;
+	unsigned bank, bit, wakeup = 0;
 	unsigned long flags;
 	bank = SIC_SYSIRQ(irq) / 32;
 	bit = SIC_SYSIRQ(irq) % 32;
 
+	switch (irq) {
+#ifdef IRQ_RTC
+	case IRQ_RTC:
+	wakeup |= WAKE;
+	break;
+#endif
+#ifdef IRQ_CAN0_RX
+	case IRQ_CAN0_RX:
+	wakeup |= CANWE;
+	break;
+#endif
+#ifdef IRQ_CAN1_RX
+	case IRQ_CAN1_RX:
+	wakeup |= CANWE;
+	break;
+#endif
+#ifdef IRQ_USB_INT0
+	case IRQ_USB_INT0:
+	wakeup |= USBWE;
+	break;
+#endif
+#ifdef IRQ_KEY
+	case IRQ_KEY:
+	wakeup |= KPADWE;
+	break;
+#endif
+#ifdef CONFIG_BF54x
+	case IRQ_CNT:
+	wakeup |= ROTWE;
+	break;
+#endif
+	default:
+	break;
+	}
+
 	local_irq_save(flags);
 
-	if (state)
+	if (state) {
 		bfin_sic_iwr[bank] |= (1 << bit);
-	else
+		vr_wakeup  |= wakeup;
+
+	} else {
 		bfin_sic_iwr[bank] &= ~(1 << bit);
+		vr_wakeup  &= ~wakeup;
+	}
 
 	local_irq_restore(flags);
 
@@ -943,6 +983,11 @@ int __init init_arch_irq(void)
 
 	local_irq_disable();
 
+#if (defined(CONFIG_BF537) || defined(CONFIG_BF536))
+	/* Clear EMAC Interrupt Status bits so we can demux it later */
+	bfin_write_EMAC_SYSTAT(-1);
+#endif
+
 #ifdef CONFIG_BF54x
 # ifdef CONFIG_PINTx_REASSIGN
 	pint[0]->assign = CONFIG_PINT0_ASSIGN;
@@ -1028,13 +1073,22 @@ int __init init_arch_irq(void)
 	    IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW;
 
 #if defined(CONFIG_BF54x) || defined(CONFIG_BF52x) || defined(CONFIG_BF561)
-	bfin_write_SIC_IWR0(IWR_ENABLE_ALL);
-	bfin_write_SIC_IWR1(IWR_ENABLE_ALL);
+	bfin_write_SIC_IWR0(IWR_DISABLE_ALL);
+#if defined(CONFIG_BF52x)
+	/* BF52x system reset does not properly reset SIC_IWR1 which
+	 * will screw up the bootrom as it relies on MDMA0/1 waking it
+	 * up from IDLE instructions.  See this report for more info:
+	 * http://blackfin.uclinux.org/gf/tracker/4323
+	 */
+	bfin_write_SIC_IWR1(IWR_ENABLE(10) | IWR_ENABLE(11));
+#else
+	bfin_write_SIC_IWR1(IWR_DISABLE_ALL);
+#endif
 # ifdef CONFIG_BF54x
-	bfin_write_SIC_IWR2(IWR_ENABLE_ALL);
+	bfin_write_SIC_IWR2(IWR_DISABLE_ALL);
 # endif
 #else
-	bfin_write_SIC_IWR(IWR_ENABLE_ALL);
+	bfin_write_SIC_IWR(IWR_DISABLE_ALL);
 #endif
 
 	return 0;