[U-Boot] program exception trap 700

[raj shekar]

I  am working on  mpc8548cds board …
 
Feature : POST DIAGNOSTICS;
 
In  u-boot :  post/memory.c,cpu.c..etc..
 
Need your suggestion…
 
There is function pointers in post.c which calls the respective function to perform diag test ( example ram , cpu, ether ..etc ) which will be picked from tests.c ( This is the structure which defines all the fileds of the tests)
 
Function pointer defined in post.c
 
static int post_run_single (struct post_test *test,
                                                        int test_flags, int flags, unsigned int i) {
…
..
if ((*test->test) (flags) != 0) {             ( This function pointers will call cpu tests from post/cpu.c defined below based tested entered from u-boot promt  )
  post_log ("FAILED\n")
} else {
post_log ("PASSED\n")
}
 
------------------------------------------------------------------------------------------------------------
CASE 1 Experiment :
Post/cpu.c 
 
int cpu_post_test (int flags)
{
        int ic = icache_status ();
        int  ret = 0;
        int c;
        post_result_cpu = 0;
        cpu_dbg = 0;
        boot_flag_post = 0;
 
       printf( “ Testing cpu diag \n”);   à TRAP IS Generated and box got rebooted.
 
       Other part of code exits..
}