Changeset 962 for trunk/softs/tsar_boot/drivers/reset_bdv.c

Timestamp:

Apr 1, 2015, 3:42:03 PM (9 years ago)

Author:

alain

Message:

Introducing a new IOC driver supporting the VciMultiAhci? disk controller (in polling mode only).
Extending the MMC driver to support the SYNC command requested by the AHCI protocol on the tsar_generic_iob platform.

File:

• trunk/softs/tsar_boot/drivers/reset_bdv.c (modified) (5 diffs)

trunk/softs/tsar_boot/drivers/reset_bdv.c

@@ -43 +43 @@
 };
 
+////////////////////
 int reset_bdv_init()
 {
@@ -48 +49 @@
 }
 
-int reset_bdv_read( unsigned int lba, void* buffer, unsigned int count )
+////////////////////////////////////
+int reset_bdv_read( unsigned int lba, 
+                    void* buffer, 
+                    unsigned int count )
 {
-    /*
-     * block_device configuration
-     */
+    // block_device configuration
     iowrite32( &ioc_address[BLOCK_DEVICE_BUFFER], (unsigned int) buffer );
     iowrite32( &ioc_address[BLOCK_DEVICE_COUNT], count );
@@ -58 +60 @@
     iowrite32( &ioc_address[BLOCK_DEVICE_IRQ_ENABLE], 0 );
 
-    /*
-     * block_device trigger transfer
-     */
+    //  trigger transfer
     iowrite32( &ioc_address[BLOCK_DEVICE_OP], ( unsigned int )
                BLOCK_DEVICE_READ );
+
+#if (RESET_HARD_CC == 0) || USE_IOB
+    // inval buffer in L1 cache
+    reset_L1_inval( buffer , count * 512 );
+#endif
+
+#if USE_IOB
+    // inval buffer in L2 cache
+    reset_L2_inval( buffer , count * 512 );
+#endif
 
     unsigned int status = 0;
@@ -72 +82 @@
             break;
         }
-        if ( status == BLOCK_DEVICE_READ_ERROR   ) {
+        if ( status == BLOCK_DEVICE_READ_ERROR   ) 
+        {
             reset_puts("ERROR during read on the BLK device\n");
             return 1;
@@ -78 +89 @@
     }
 
-#if (RESET_HARD_CC == 0) || USE_IOB
-    reset_buf_invalidate(buffer, count * 512, USE_IOB);
-#endif
     return 0;
 }