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authorLucas Stach <l.stach@pengutronix.de>2014-06-25 09:18:19 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2014-06-26 08:05:21 +0200
commit0dd421f27274008237824bdb96bf17471671d022 (patch)
tree2f63889b86ed10bb0b3f5a5731ea48feb4dda138 /arch/arm
parent2412f46dd34abc89cd468895d8151f2b1cf2a8ff (diff)
downloadbarebox-0dd421f27274008237824bdb96bf17471671d022.tar.gz
barebox-0dd421f27274008237824bdb96bf17471671d022.tar.xz
arm: imx6: add cpu lowlevel init function
Enables all relevant errata workarounds for the i.MX6 SoC. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-imx/Makefile1
-rw-r--r--arch/arm/mach-imx/cpu_init.c27
-rw-r--r--arch/arm/mach-imx/include/mach/generic.h2
3 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 03e5b102fa..1d311a4177 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -22,3 +22,4 @@ obj-$(CONFIG_BAREBOX_UPDATE) += imx-bbu-internal.o
obj-$(CONFIG_BAREBOX_UPDATE_IMX_EXTERNAL_NAND) += imx-bbu-external-nand.o
obj-$(CONFIG_BAREBOX_UPDATE_IMX6_NAND) += imx6-bbu-nand.o
pbl-y += esdctl.o
+lwl-y += cpu_init.o
diff --git a/arch/arm/mach-imx/cpu_init.c b/arch/arm/mach-imx/cpu_init.c
new file mode 100644
index 0000000000..68eacf7a60
--- /dev/null
+++ b/arch/arm/mach-imx/cpu_init.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2014 Lucas Stach, Pengutronix
+ *
+ * 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.
+ */
+
+#include <asm/barebox-arm-head.h>
+#include <asm/errata.h>
+
+void imx6_cpu_lowlevel_init(void)
+{
+ arm_cpu_lowlevel_init();
+
+ enable_arm_errata_742230_war();
+ enable_arm_errata_743622_war();
+ enable_arm_errata_751472_war();
+ enable_arm_errata_761320_war();
+ enable_arm_errata_794072_war();
+}
diff --git a/arch/arm/mach-imx/include/mach/generic.h b/arch/arm/mach-imx/include/mach/generic.h
index 506b1daaa3..505a54268d 100644
--- a/arch/arm/mach-imx/include/mach/generic.h
+++ b/arch/arm/mach-imx/include/mach/generic.h
@@ -33,6 +33,8 @@ int imx51_devices_init(void);
int imx53_devices_init(void);
int imx6_devices_init(void);
+void imx6_cpu_lowlevel_init(void);
+
/* There's a off-by-one betweem the gpio bank number and the gpiochip */
/* range e.g. GPIO_1_5 is gpio 5 under linux */
#define IMX_GPIO_NR(bank, nr) (((bank) - 1) * 32 + (nr))