Changeset 169 for soft/giet_vm/sys/kernel_init.c

Timestamp:

Jul 17, 2012, 2:39:10 PM (12 years ago)

Author:

alain

Message:

Introducing support for FBDMA (Frame Buffer using DMA)

File:

• soft/giet_vm/sys/kernel_init.c (modified) (2 diffs)

soft/giet_vm/sys/kernel_init.c

@@ -542 +542 @@
 in_kinit void _kernel_peripherals_init()
 {
-    // IOC peripheral initialisation
+    /////////////////////
+    // IOC peripheral 
     // we simply activate the IOC interrupts...
-    unsigned int*       ioc_address = (unsigned int*)&seg_ioc_base;
-
-    ioc_address[BLOCK_DEVICE_IRQ_ENABLE] = 1;
+    if ( NB_IOC )
+    {
+        unsigned int*   ioc_address = (unsigned int*)&seg_ioc_base;
+        ioc_address[BLOCK_DEVICE_IRQ_ENABLE] = 1;
+    }
     
+    /////////////////////
+    // FBDMA peripheral
+    // we simply activate the DMA interrupts...
+    if ( NB_DMAS )
+    {
+        unsigned int*   dma_address = (unsigned int*)&seg_dma_base;
+        dma_address[DMA_IRQ_DISABLE] = 0;
+    }
+
+    /////////////////////
     // IOB peripheral
+    // must be initialised in case of IOMMU
     if ( GIET_IOMMU_ACTIVE )
     {
@@ -560 +574 @@
         // activate IOMMU
         iob_address[IOB_IOMMU_ACTIVE] = 1;    
-    }
+    } 
 
     _puts("\n[INIT] Peripherals initialisation completed at cycle ");