ARM MXS: Add auart platform support for i.MX28

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

3 files changed, 58 insertions, 0 deletions

diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig
index cf7dc1ae575b..3001b754948a 100644
--- a/arch/arm/mach-mxs/devices/Kconfig
+++ b/arch/arm/mach-mxs/devices/Kconfig
@@ -2,5 +2,8 @@ config MXS_HAVE_AMBA_DUART
         bool
         select ARM_AMBA
 
+config MXS_HAVE_PLATFORM_AUART
+        bool
+
 config MXS_HAVE_PLATFORM_FEC
         bool
diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile
index d0a09f6934b8..c814d054bad7 100644
--- a/arch/arm/mach-mxs/devices/Makefile
+++ b/arch/arm/mach-mxs/devices/Makefile
@@ -1,2 +1,3 @@
 obj-$(CONFIG_MXS_HAVE_AMBA_DUART) += amba-duart.o
+obj-$(CONFIG_MXS_HAVE_PLATFORM_AUART) += platform-auart.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_FEC) += platform-fec.o
diff --git a/arch/arm/mach-mxs/devices/platform-auart.c b/arch/arm/mach-mxs/devices/platform-auart.c
new file mode 100644
index 000000000000..f0dbf8a21456
--- /dev/null
+++ b/arch/arm/mach-mxs/devices/platform-auart.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2010 Pengutronix
+ * Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * 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 <asm/sizes.h>
+#include <mach/mx28.h>
+#include <mach/devices-common.h>
+
+#define mxs_auart_data_entry_single(soc, _id)                           \
+        {                                                               \
+                .id = _id,                                              \
+                .iobase = soc ## _AUART ## _id ## _BASE_ADDR,           \
+                .irq = soc ## _INT_AUART ## _id,                        \
+        }
+
+#define mxs_auart_data_entry(soc, _id)                                  \
+        [_id] = mxs_auart_data_entry_single(soc, _id)
+
+#ifdef CONFIG_SOC_IMX28
+const struct mxs_auart_data mx28_auart_data[] __initconst = {
+#define mx28_auart_data_entry(_id)                                      \
+        mxs_auart_data_entry(MX28, _id)
+        mx28_auart_data_entry(0),
+        mx28_auart_data_entry(1),
+        mx28_auart_data_entry(2),
+        mx28_auart_data_entry(3),
+        mx28_auart_data_entry(4),
+};
+#endif
+
+struct platform_device *__init mxs_add_auart(
+                const struct mxs_auart_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_dmamask("mxs-auart", data->id,
+                                        res, ARRAY_SIZE(res), NULL, 0,
+                                        DMA_BIT_MASK(32));
+}
+