Changeset 590 for trunk/softs/tsar_boot/include/spi.h

Timestamp:

Dec 5, 2013, 4:40:04 PM (10 years ago)

Author:

bouyer

Message:

Use the SPI controller's DMA if the defs_platform.h defines
IOC_USE_DMA.

File:

• trunk/softs/tsar_boot/include/spi.h (modified) (3 diffs)

trunk/softs/tsar_boot/include/spi.h

@@ -36 +36 @@
      */
     unsigned int ss;
+    unsigned int dma_base;
+    unsigned int dma_baseh;
+    unsigned int dma_count;
 };
 
@@ -130 +133 @@
 #define SPI_CTRL_RXN_EN        ( 1 << 9  ) /**< MISO is latched on neg edge   */
 #define SPI_CTRL_GO_BSY        ( 1 << 8  ) /**< Start the transfer            */
+#define SPI_CTRL_DMA_BSY        (1 << 16)  /***   DMA in progress             */
 #define SPI_CTRL_CHAR_LEN_MASK (  0xFF   ) /**< Bits transmited in 1 transfer */
 #define SPI_RXTX_MASK          (  0xFF   ) /**< Mask for the an RX/TX value   */
+
+#define SPI_DMA_COUNT_READ      (1 << 0) /* operation is a read (else write) */
 
 /** 
@@ -140 +146 @@
  * \brief  Check the GO_BUSY bit of the SPI Controller
  */
-#define SPI_IS_BUSY(x)         ((ioread32(&x->ctrl) & SPI_CTRL_GO_BSY) != 0) ? 1 : 0
+#define SPI_IS_BUSY(x)         ((ioread32(&x->ctrl) & (SPI_CTRL_GO_BSY|SPI_CTRL_DMA_BSY)) != 0) ? 1 : 0
 
 #endif