Changeset 0eef948f in rtems for c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S

Timestamp:

Jun 8, 2001, 1:29:13 PM (20 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

622a429

Parents:

b7f5447b

Message:

2000-06-08 Eric Valette <valette@…>

• console/console.c, include/commproc.h, startup/start.S: The printk/printf did not work when loaded by EPPCBUG. They did work when loaded with the BDM debugger. I suspected EPPBUG made some nasty things like patching Communication processor microcode... Anyway, the attached patch: 1) Enables to have printk nearly immediately after boot, 2) Make printf work automagically (I do not know why except I make a different initialization for printk that should be overwritten by console init later ?)

I let the default to be using EPPCBUG embedded firmware to boot and
using this printk early enabler code (LOADED_BY_EPPCBUG and
EARLY_CONSOLE) are on.

File:

• c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S (modified) (2 diffs)

c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S

@@ -243 +243 @@
  * #define LOADED_BY_EPPCBUG
  */
+#define LOADED_BY_EPPCBUG
+#define EARLY_CONSOLE           
 /*
  * Initialization code 
@@ -276 +278 @@
         bl      bssclr
         nop
-
+#if defined(EARLY_CONSOLE) && defined(LOADED_BY_EPPCBUG)
+        EXTERN_PROC (serial_init)
+        bl      PROC (serial_init)
+#endif  
         lis     r5,environ@ha
         la      r5,environ@l(r5)                /* environp */