[U-Boot] [PATCH 3/3] ARM: mx6: use common CPU errata config options
Stephen Warren
swarren at wwwdotorg.org
Tue Feb 26 23:28:29 CET 2013
From: Stephen Warren <swarren at nvidia.com>
Now that U-Boot has common CONFIG_ options to work around some ARM CPU
errata, enable the relevant options on MX6, and remove the custom
lowlevel_init.S, since it's just duplicated code now.
Signed-off-by: Stephen Warren <swarren at nvidia.com>
---
arch/arm/cpu/armv7/Makefile | 2 +-
arch/arm/cpu/armv7/mx6/Makefile | 1 -
arch/arm/cpu/armv7/mx6/lowlevel_init.S | 35 --------------------------------
arch/arm/cpu/armv7/mx6/soc.c | 4 ++++
include/configs/mx6_common.h | 23 +++++++++++++++++++++
include/configs/mx6qarm2.h | 3 +++
include/configs/mx6qsabre_common.h | 3 +++
include/configs/mx6qsabrelite.h | 3 +++
8 files changed, 37 insertions(+), 37 deletions(-)
delete mode 100644 arch/arm/cpu/armv7/mx6/lowlevel_init.S
create mode 100644 include/configs/mx6_common.h
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile
index ee8c2b3..4668b3c 100644
--- a/arch/arm/cpu/armv7/Makefile
+++ b/arch/arm/cpu/armv7/Makefile
@@ -32,7 +32,7 @@ COBJS += cache_v7.o
COBJS += cpu.o
COBJS += syslib.o
-ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX)$(CONFIG_TEGRA),)
+ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX)$(CONFIG_TEGRA)$(CONFIG_MX6),)
SOBJS += lowlevel_init.o
endif
diff --git a/arch/arm/cpu/armv7/mx6/Makefile b/arch/arm/cpu/armv7/mx6/Makefile
index cbce411..4f9ca68 100644
--- a/arch/arm/cpu/armv7/mx6/Makefile
+++ b/arch/arm/cpu/armv7/mx6/Makefile
@@ -28,7 +28,6 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(SOC).o
COBJS = soc.o clock.o
-SOBJS = lowlevel_init.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
diff --git a/arch/arm/cpu/armv7/mx6/lowlevel_init.S b/arch/arm/cpu/armv7/mx6/lowlevel_init.S
deleted file mode 100644
index 7b60ca7..0000000
--- a/arch/arm/cpu/armv7/mx6/lowlevel_init.S
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
- *
- * 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
- */
-.section ".text.init", "x"
-
-#include <linux/linkage.h>
-
-.macro init_arm_errata
- /* ARM erratum ID #743622 */
- mrc p15, 0, r10, c15, c0, 1 /* read diagnostic register */
- orr r10, r10, #1 << 6 /* set bit #6 */
- /* ARM erratum ID #751472 */
- orr r10, r10, #1 << 11 /* set bit #11 */
- mcr p15, 0, r10, c15, c0, 1 /* write diagnostic register */
-.endm
-
-ENTRY(lowlevel_init)
- init_arm_errata
- mov pc, lr
-ENDPROC(lowlevel_init)
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index a8aad5d..8176249 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -193,3 +193,7 @@ const struct boot_mode soc_boot_modes[] = {
{"esdhc4", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
{NULL, 0},
};
+
+void s_init(void)
+{
+}
diff --git a/include/configs/mx6_common.h b/include/configs/mx6_common.h
new file mode 100644
index 0000000..b333937
--- /dev/null
+++ b/include/configs/mx6_common.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __MX6_COMMON_H
+#define __MX6_COMMON_H
+
+#define CONFIG_ARM_ERRATA_743622
+#define CONFIG_ARM_ERRATA_751472
+
+#endif
diff --git a/include/configs/mx6qarm2.h b/include/configs/mx6qarm2.h
index 138e460..bd52cde 100644
--- a/include/configs/mx6qarm2.h
+++ b/include/configs/mx6qarm2.h
@@ -24,6 +24,9 @@
#define CONFIG_MX6
#define CONFIG_MX6Q
+
+#include "mx6_common.h"
+
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO
diff --git a/include/configs/mx6qsabre_common.h b/include/configs/mx6qsabre_common.h
index d76357c..b634997 100644
--- a/include/configs/mx6qsabre_common.h
+++ b/include/configs/mx6qsabre_common.h
@@ -19,6 +19,9 @@
#define CONFIG_MX6
#define CONFIG_MX6Q
+
+#include "mx6_common.h"
+
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO
diff --git a/include/configs/mx6qsabrelite.h b/include/configs/mx6qsabrelite.h
index 752f098..682012e 100644
--- a/include/configs/mx6qsabrelite.h
+++ b/include/configs/mx6qsabrelite.h
@@ -24,6 +24,9 @@
#define CONFIG_MX6
#define CONFIG_MX6Q
+
+#include "mx6_common.h"
+
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO
--
1.7.10.4
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