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authorMarek Vasut <marek.vasut@gmail.com>2011-11-08 23:18:13 +0000
committerStefano Babic <sbabic@denx.de>2011-11-11 11:36:57 +0100
commit6b6440def8ebe1001aa19cab3eb4d13cba12d9c5 (patch)
treec73313a79a67022c5bf714fe337717a6807b1114 /arch/arm
parentf4f680aa3681de027e8f78cc09400464e4ed2826 (diff)
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iMX28: Add GPIO control
Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/arm926ejs/mx28/mx28.c6
-rw-r--r--arch/arm/include/asm/arch-mx28/gpio.h32
2 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/mx28/mx28.c b/arch/arm/cpu/arm926ejs/mx28/mx28.c
index 446ea8b..e990f3c 100644
--- a/arch/arm/cpu/arm926ejs/mx28/mx28.c
+++ b/arch/arm/cpu/arm926ejs/mx28/mx28.c
@@ -31,6 +31,7 @@
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/gpio.h>
+#include <asm/arch/iomux.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
@@ -134,6 +135,11 @@ int arch_cpu_init(void)
udelay(1000);
+ /*
+ * Configure GPIO unit
+ */
+ mxs_gpio_init();
+
return 0;
}
#endif
diff --git a/arch/arm/include/asm/arch-mx28/gpio.h b/arch/arm/include/asm/arch-mx28/gpio.h
new file mode 100644
index 0000000..be1c944
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/gpio.h
@@ -0,0 +1,32 @@
+/*
+ * Freescale i.MX28 GPIO
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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
+ *
+ */
+
+#ifndef __MX28_GPIO_H__
+#define __MX28_GPIO_H__
+
+#ifdef CONFIG_MXS_GPIO
+void mxs_gpio_init(void);
+#else
+inline void mxs_gpio_init(void) {}
+#endif
+
+#endif /* __MX28_GPIO_H__ */