Changeset 388 for trunk/softs/tsar_boot/src/spi.c

Timestamp:

May 16, 2013, 3:01:37 PM (11 years ago)

Author:

cfuguet

Message:

Modifications in tsar/trunk/softs/tsar_boot:

• Improving the boot_ioc_read when using a SD card in FPGA platform.
• Adding some instrumentation on the SD card driver (under preprocessor conditional directives).
• Including Doxyfile for generate documentation using doxygen.
• Improving the Makefile to include doc generation.

File:

• trunk/softs/tsar_boot/src/spi.c (modified) (4 diffs)

trunk/softs/tsar_boot/src/spi.c

@@ -1 @@
-/*
+/**
  * \file    spi.c
- * \data    31 August 2012
+ * \date    31 August 2012
  * \author  Cesar Fuguet <cesar.fuguet-tortolero@lip6.fr>
  */
@@ -15 +15 @@
 static void _spi_wait_if_busy(struct spi_dev * spi)
 {
-    volatile register int delay;
+    register int delay;
 
     while(SPI_IS_BUSY(spi))
     {
-        for (delay = 0; delay < 10000; delay++);
+        for (delay = 0; delay < 100; delay++);
     }
 }
@@ -58 +58 @@
         iowrite8(&spi->rx_tx[index % 4], byte);
         _spi_init_transfer(spi);
-
-        asm volatile("sync");
     }
     _spi_wait_if_busy(spi);
@@ -104 +102 @@
     if (spi_freq > 0 && sys_freq > 0)
         iowrite32(&spi->divider, _spi_calc_divider_value(spi_freq, sys_freq));
-
 }