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>
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 @@
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__ */