ARM: mxs: Dynamically allocate duart devices

Dynamically allocate duart devices for MX23 and MX28.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

1 files changed, 48 insertions, 0 deletions

diff --git a/arch/arm/mach-mxs/devices/platform-duart.c b/arch/arm/mach-mxs/devices/platform-duart.c
new file mode 100644
index 000000000000..2fe0df5b0aad
--- /dev/null
+++ b/arch/arm/mach-mxs/devices/platform-duart.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2009-2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * Copyright 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 version 2 as published by the
+ * Free Software Foundation.
+ */
+#include <mach/mx23.h>
+#include <mach/mx28.h>
+#include <mach/devices-common.h>
+
+#define mxs_duart_data_entry(soc)                                       \
+        {                                                               \
+                .iobase = soc ## _DUART_BASE_ADDR,                      \
+                .irq = soc ## _INT_DUART,                               \
+        }
+
+#ifdef CONFIG_SOC_IMX23
+const struct mxs_duart_data mx23_duart_data __initconst =
+        mxs_duart_data_entry(MX23);
+#endif
+
+#ifdef CONFIG_SOC_IMX28
+const struct mxs_duart_data mx28_duart_data __initconst =
+        mxs_duart_data_entry(MX28);
+#endif
+
+struct platform_device *__init mxs_add_duart(
+                const struct mxs_duart_data *data)
+{
+        struct resource res[] = {
+                {
+                        .start = data->iobase,
+                        .end = data->iobase + SZ_8K - 1,
+                        .flags = IORESOURCE_MEM,
+                }, {
+                        .start = data->irq,
+                        .end = data->irq,
+                        .flags = IORESOURCE_IRQ,
+                },
+        };
+
+        return mxs_add_platform_device("mxs-duart", 0, res, ARRAY_SIZE(res),
+                                        NULL, 0);
+}