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Diffstat (limited to 'arch/arm/mach-mx28/mx28evk_pins.c')
-rw-r--r--arch/arm/mach-mx28/mx28evk_pins.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/mach-mx28/mx28evk_pins.c b/arch/arm/mach-mx28/mx28evk_pins.c
new file mode 100644
index 000000000000..58d6ba6c3eb7
--- /dev/null
+++ b/arch/arm/mach-mx28/mx28evk_pins.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+#include <mach/pinctrl.h>
+
+#include "mx28_pins.h"
+
+static struct pin_desc mx28evk_fixed_pins[] = {
+ {
+ .name = "DUART.RX",
+ .id = PINID_PWM0,
+ .fun = PIN_FUN3,
+ },
+ {
+ .name = "DUART.TX",
+ .id = PINID_PWM1,
+ .fun = PIN_FUN3,
+ },
+};
+
+void __init mx28evk_pins_init(void)
+{
+ int i;
+ struct pin_desc *pin;
+ for (i = 0; i < ARRAY_SIZE(mx28evk_fixed_pins); i++) {
+ pin = &mx28evk_fixed_pins[i];
+ if (pin->fun == PIN_GPIO)
+ gpio_request(MXS_PIN_TO_GPIO(pin->id), pin->name);
+ else
+ mxs_request_pin(pin->id, pin->fun, pin->name);
+ if (pin->drive) {
+ mxs_set_strength(pin->id, pin->strength, pin->name);
+ mxs_set_voltage(pin->id, pin->voltage, pin->name);
+ }
+ if (pin->pull)
+ mxs_set_pullup(pin->id, pin->pullup, pin->name);
+ if (pin->fun == PIN_GPIO) {
+ if (pin->input)
+ gpio_direction_input(MXS_PIN_TO_GPIO(pin->id));
+ else
+ gpio_direction_output(MXS_PIN_TO_GPIO(pin->id),
+ pin->data);
+ }
+ }
+}