[U-Boot] [PATCH] powerpc/85xx: Add command to report errata workarounds

[Kumar Gala]

Add 'errata' command to report what errata we workaround.  Report
workaround for erratum SATA-A001 on P1022/P1013.

Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
 arch/powerpc/cpu/mpc85xx/Makefile     |    1 +
 arch/powerpc/cpu/mpc85xx/cmd_errata.c |   51 +++++++++++++++++++++++++++++++++
 include/configs/P1022DS.h             |    1 +
 3 files changed, 53 insertions(+), 0 deletions(-)
 create mode 100644 arch/powerpc/cpu/mpc85xx/cmd_errata.c

diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile
index a481326..4ee0e9a 100644
--- a/arch/powerpc/cpu/mpc85xx/Makefile
+++ b/arch/powerpc/cpu/mpc85xx/Makefile
@@ -32,6 +32,7 @@ START	= start.o resetvec.o
 SOBJS-$(CONFIG_MP)	+= release.o
 SOBJS	= $(SOBJS-y)
 
+COBJS-$(CONFIG_CMD_ERRATA) += cmd_errata.o
 COBJS-$(CONFIG_CPM2)	+= commproc.o
 
 # supports ddr1
diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
new file mode 100644
index 0000000..d7835c8
--- /dev/null
+++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <linux/compiler.h>
+#include <asm/processor.h>
+
+static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	__maybe_unused u32 svr = get_svr();
+
+#if defined(CONFIG_FSL_SATA_V2) && defined(CONFIG_FSL_SATA_ERRATUM_A001)
+	if (IS_SVR_REV(svr, 1, 0)) {
+		switch (SVR_SOC_VER(svr)) {
+		case SVR_P1013:
+		case SVR_P1013_E:
+		case SVR_P1022:
+		case SVR_P1022_E:
+			puts("Work-around for Erratum SATA A001 enabled\n");
+		}
+	}
+#endif
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	errata, 1, 0,	do_errata,
+	"Report errata workarounds",
+	""
+);
diff --git a/include/configs/P1022DS.h b/include/configs/P1022DS.h
index e444179..ce9a4d1 100644
--- a/include/configs/P1022DS.h
+++ b/include/configs/P1022DS.h
@@ -345,6 +345,7 @@
 #define CONFIG_CMD_ELF
 #define CONFIG_CMD_IRQ
 #define CONFIG_CMD_SETEXPR
+#define CONFIG_CMD_ERRATA
 
 #ifdef CONFIG_PCI
 #define CONFIG_CMD_PCI
-- 
1.6.0.6