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ARM: mx6: use common CPU errata config options

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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@nvidia.com>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>
This commit is contained in:
Stephen Warren 2013-02-26 12:28:29 +00:00 committed by Stefano Babic
parent 1b097cff51
commit 8f3937761b
8 changed files with 37 additions and 37 deletions
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2
arch/arm/cpu/armv7/Makefile
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@ -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

1
arch/arm/cpu/armv7/mx6/Makefile
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@ -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))

35
arch/arm/cpu/armv7/mx6/lowlevel_init.S
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@ -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)

4
arch/arm/cpu/armv7/mx6/soc.c
View File

@ -205,3 +205,7 @@ const struct boot_mode soc_boot_modes[] = {
{"esdhc4", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
{NULL, 0},
};
void s_init(void)
{
}

23
include/configs/mx6_common.h Normal file
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@ -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

3
include/configs/mx6qarm2.h
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@ -24,6 +24,9 @@
#define CONFIG_MX6
#define CONFIG_MX6Q
#include "mx6_common.h"
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO

3
include/configs/mx6qsabre_common.h
View File

@ -19,6 +19,9 @@
#define CONFIG_MX6
#define CONFIG_MX6Q
#include "mx6_common.h"
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO

3
include/configs/mx6qsabrelite.h
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@ -24,6 +24,9 @@
#define CONFIG_MX6
#define CONFIG_MX6Q
#include "mx6_common.h"
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_BOARDINFO