Here's a patch to add the PVR for the AMCC 440EP Rev C:
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index e4e8137..a2967b6 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -938,6 +938,16 @@ struct cpu_spec cpu_specs[] = { .dcache_bsize = 32, .platform = "ppc440", }, + { + .pvr_mask = 0xf0000fff, + .pvr_value = 0x400008d4, + .cpu_name = "440EP Rev. C", + .cpu_features = CPU_FTRS_44X, + .cpu_user_features = COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU, + .icache_bsize = 32, + .dcache_bsize = 32, + .platform = "ppc440", + }, { /* 440GP Rev. B */ .pvr_mask = 0xf0000fff, .pvr_value = 0x40000440,