Subject: Re: bash: Segmentation fault on 8280

From: "Guy M. Streeter" <[email-masked]>
Date: 17 Nov 2003 09:56:56 -0600

On Mon, 2003-11-17 at 08:42, Srinivasa Hebbar wrote:
> Dear All,
>
> We have 2 identical custom board with MPC-8260 and MPC-8280 CPUs.
> The bash (Came with denx CD) works fine on MPC-8260 board.
> But the same bash program encounters a "Segmentation Fault"
> on 8280 based custom board.
>
> We are using ppc_82xx-gcc compiler to build the linux.
> The linux version is denx-2.4.20

Your kernel might not have 8280 support. See if something like the
attached patch has been applied.

--Guy

>
> Any help is highly appreciated.
>
> Regards,
> S. Hebbar.
>
--- v2.4.22_linuxppc_2_4_devel/arch/ppc/kernel/cputable.c	2003-07-25 14:39:48.000000000 +0000
+++ sbcPowerQUICCII/arch/ppc/kernel/cputable.c	2003-10-14 18:51:45.000000000 +0000
@@ -299,6 +299,14 @@ struct cpu_spec	cpu_specs[] = {
 	32, 32,
 	__setup_cpu_603
     },
+    {	/* 8280 is a G2_LE (603e core, plus some) */
+	0x7fff0000, 0x00820000, "8280",
+	CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_CAN_DOZE | CPU_FTR_USE_TB |
+	CPU_FTR_CAN_NAP | CPU_FTR_HAS_HIGH_BATS,
+	COMMON_PPC,
+	32, 32,
+	__setup_cpu_603
+    },
     {	/* default match, we assume split I/D cache & TB (non-601)... */
     	0x00000000, 0x00000000, "(generic PPC)",
     	CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE,