Changeset fcc6224 in mainline for boot/arch/arm32/src/putchar.c

Timestamp:

2012-03-05T21:37:27Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

161fbda

Parents:

d2707fc

Message:

boot,arm32: Make arm32 bootstrap code BeagleBoard-xM aware.

File:

• boot/arch/arm32/src/putchar.c (modified) (2 diffs)

boot/arch/arm32/src/putchar.c

@@ -40 +40 @@
 #include <putchar.h>
 #include <str.h>
+
+#ifdef MACHINE_beagleboardxm
+
+/** Send a byte to the amdm37x serial console.
+ *
+ * @param byte          Byte to send.
+ */
+static void scons_sendb_bbxm(uint8_t byte)
+{
+        volatile uint32_t *thr =
+            (volatile uint32_t *)BBXM_SCONS_THR;
+        volatile uint32_t *ssr =
+            (volatile uint32_t *)BBXM_SCONS_SSR;
+
+        /* Wait until transmitter is empty. */
+        while ((*ssr & BBXM_THR_FULL) == 1) ;
+
+        /* Transmit byte. */
+        *thr = (uint32_t) byte;
+}
+
+#endif
 
 #ifdef MACHINE_gta02
@@ -97 +119 @@
 static void scons_sendb(uint8_t byte)
 {
+#ifdef MACHINE_beagleboardxm
+        scons_sendb_bbxm(byte);
+#endif
 #ifdef MACHINE_gta02
         scons_sendb_gta02(byte);