powerpc, 8xx: Simplifying check_CPU()

All complex case have been removed and we now only support
MPC866 and MPC885 families.

So check_CPU() can be made a lot simpler.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

diff --git a/arch/powerpc/cpu/mpc8xx/cpu.c b/arch/powerpc/cpu/mpc8xx/cpu.c
index 74e6c6d..1e0ea28 100644 (file)
--- a/arch/powerpc/cpu/mpc8xx/cpu.c
+++ b/arch/powerpc/cpu/mpc8xx/cpu.c
@@ -34,19 +34,11 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-static char *cpu_warning = "\n         " \
-       "*** Warning: CPU Core has Silicon Bugs -- Check the Errata ***";
-
 static int check_CPU(long clock, uint pvr, uint immr)
 {
-       char *id_str =
-       NULL;
        immap_t __iomem *immap = (immap_t __iomem *)(immr & 0xFFFF0000);
-       uint k, m;
+       uint k;
        char buf[32];
-       char pre = 'X';
-       char *mid = "xx";
-       char *suf;
 
        /* the highest 16 bits should be 0x0050 for a 860 */
 
@@ -55,8 +47,6 @@ static int check_CPU(long clock, uint pvr, uint immr)
 
        k = (immr << 16) |
            in_be16(&immap->im_cpm.cp_dparam16[PROFF_REVNUM / sizeof(u16)]);
-       m = 0;
-       suf = "";
 
        /*
         * Some boards use sockets so different CPUs can be used.
@@ -65,32 +55,20 @@ static int check_CPU(long clock, uint pvr, uint immr)
        switch (k) {
                /* MPC866P/MPC866T/MPC859T/MPC859DSL/MPC852T */
        case 0x08010004:                /* Rev. A.0 */
-               suf = "A";
-               /* fall through */
+               printf("MPC866xxxZPnnA");
+               break;
        case 0x08000003:                /* Rev. 0.3 */
-               pre = 'M'; m = 1;
-               if (id_str == NULL)
-                       id_str =
-               "PC866x"; /* Unknown chip from MPC866 family */
+               printf("MPC866xxxZPnn");
                break;
-       case 0x09000000:
-               pre = 'M'; mid = suf = ""; m = 1;
-               if (id_str == NULL)
-                       id_str = "PC885"; /* 870/875/880/885 */
+       case 0x09000000:                /* 870/875/880/885 */
+               puts("MPC885ZPnn");
                break;
 
        default:
-               suf = NULL;
+               printf("unknown MPC86x (0x%08x)", k);
                break;
        }
 
-       if (id_str == NULL)
-               id_str = "PC86x";       /* Unknown 86x chip */
-       if (suf)
-               printf("%c%s%sZPnn%s", pre, id_str, mid, suf);
-       else
-               printf("unknown M%s (0x%08x)", id_str, k);
-
        printf(" at %s MHz: ", strmhz(buf, clock));
 
        print_size(checkicache(), " I-Cache ");
@@ -102,9 +80,6 @@ static int check_CPU(long clock, uint pvr, uint immr)
        if (in_be32(&immap->im_cpm.cp_fec.fec_addr_low) == 0x12345678)
                printf(" FEC present");
 
-       if (!m)
-               puts(cpu_warning);
-
        putc('\n');
 
        return 0;