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 64d746114e4..62f8883a5c2 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 IRQ_CNT
+        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_BF527) || defined(CONFIG_BF536) || defined(CONFIG_BF537)
+        /* 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;