commit 9ed88111a57d2517da875c446d00e98e56ac3c32
author York Sun <yorksun@freescale.com> Mon May 07 07:26:47 2012 +0000
committer Andy Fleming <afleming@freescale.com> Fri Jul 06 17:30:33 2012 -0500
tree 48f508182cde09a202b6464599925a5415f2fed8
parent 8cb6548b4a7ad93cd2c63b5a7b86c70d0770d34c

powerpc/mpc85xx: Workaround for erratum CPU_A011

Erratum NMG_CPU_A011 applies to P4080 rev 1.0, 2.0, fixed in rev 3.0.
It also applies to P3041 rev 1.0, 1.1, P2041 rev 1.0, 1.1. It shares the
same workaround as erratum CPU22. Rearrange registers usage in assembly
code to avoid accidental overwriting.

Signed-off-by: York Sun <yorksun@freescale.com>

arch/powerpc/cpu/mpc85xx/cmd_errata.c

diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
index 35c2b1a..4e1a54a 100644
--- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c
+++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
@@ -52,6 +52,14 @@
 	if (SVR_MAJ(svr) < 3)
 		puts("Work-around for Erratum CPU22 enabled\n");
 #endif
+#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_CPU_A011
+	/*
+	 * NMG_CPU_A011 applies to P4080 rev 1.0, 2.0, fixed in 3.0
+	 * also applies to P3041 rev 1.0, 1.1, P2041 rev 1.0, 1.1
+	 */
+	if (SVR_SOC_VER(svr) != SVR_P4080 || SVR_MAJ(svr) < 3)
+		puts("Work-around for Erratum CPU-A011 enabled\n");
+#endif
 #if defined(CONFIG_SYS_FSL_ERRATUM_CPU_A003999)
 	puts("Work-around for Erratum CPU-A003999 enabled\n");
 #endif