* Restrict baudrate settings on LWMON to higher speeds
when watchdog is on
* Update baudrate in bd_info when it gets changed
* Add watchdog trigger points while waiting for serial port
(so far only 8xx -- needed on LWMON with 100ms watchdog)
* Improve command line tool to access the U-Boot's environment
(figuration of the utility, using a config file)
diff --git a/cpu/mpc8xx/serial.c b/cpu/mpc8xx/serial.c
index 0690300..2871084 100644
--- a/cpu/mpc8xx/serial.c
+++ b/cpu/mpc8xx/serial.c
@@ -24,6 +24,7 @@
#include <common.h>
#include <commproc.h>
#include <command.h>
+#include <watchdog.h>
#if !defined(CONFIG_8xx_CONS_NONE) /* No Console at all */
@@ -265,20 +266,16 @@
*/
buf = (char *)tbdf->cbd_bufaddr;
-#if 0
- __asm__("eieio");
- while (tbdf->cbd_sc & BD_SC_READY)
- __asm__("eieio");
-#endif
*buf = c;
tbdf->cbd_datlen = 1;
tbdf->cbd_sc |= BD_SC_READY;
__asm__("eieio");
-#if 1
- while (tbdf->cbd_sc & BD_SC_READY)
+
+ while (tbdf->cbd_sc & BD_SC_READY) {
+ WATCHDOG_RESET ();
__asm__("eieio");
-#endif
+ }
}
int
@@ -298,8 +295,10 @@
/* Wait for character to show up.
*/
buf = (unsigned char *)rbdf->cbd_bufaddr;
+
while (rbdf->cbd_sc & BD_SC_EMPTY)
- ;
+ WATCHDOG_RESET ();
+
c = *buf;
rbdf->cbd_sc |= BD_SC_EMPTY;
@@ -524,20 +523,16 @@
*/
buf = (char *)tbdf->cbd_bufaddr;
-#if 0
- __asm__("eieio");
- while (tbdf->cbd_sc & BD_SC_READY)
- __asm__("eieio");
-#endif
*buf = c;
tbdf->cbd_datlen = 1;
tbdf->cbd_sc |= BD_SC_READY;
__asm__("eieio");
-#if 1
- while (tbdf->cbd_sc & BD_SC_READY)
+
+ while (tbdf->cbd_sc & BD_SC_READY) {
__asm__("eieio");
-#endif
+ WATCHDOG_RESET ();
+ }
}
int
@@ -557,8 +552,10 @@
/* Wait for character to show up.
*/
buf = (unsigned char *)rbdf->cbd_bufaddr;
+
while (rbdf->cbd_sc & BD_SC_EMPTY)
- ;
+ WATCHDOG_RESET ();
+
c = *buf;
rbdf->cbd_sc |= BD_SC_EMPTY;