Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-imx / devices / platform-imx-i2c.c

diff --git a/kernel/arch/arm/mach-imx/devices/platform-imx-i2c.c b/kernel/arch/arm/mach-imx/devices/platform-imx-i2c.c
new file mode 100644 (file)
index 0000000..ae97915
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/devices/platform-imx-i2c.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2009-2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@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 "../hardware.h"
+#include "devices-common.h"
+
+#define imx_imx_i2c_data_entry_single(soc, _devid, _id, _hwid, _size)  \
+       {                                                               \
+               .devid = _devid,                                        \
+               .id = _id,                                              \
+               .iobase = soc ## _I2C ## _hwid ## _BASE_ADDR,           \
+               .iosize = _size,                                        \
+               .irq = soc ## _INT_I2C ## _hwid,                        \
+       }
+
+#define imx_imx_i2c_data_entry(soc, _devid, _id, _hwid, _size)         \
+       [_id] = imx_imx_i2c_data_entry_single(soc, _devid, _id, _hwid, _size)
+
+#ifdef CONFIG_SOC_IMX1
+const struct imx_imx_i2c_data imx1_imx_i2c_data __initconst =
+       imx_imx_i2c_data_entry_single(MX1, "imx1-i2c", 0, , SZ_4K);
+#endif /* ifdef CONFIG_SOC_IMX1 */
+
+#ifdef CONFIG_SOC_IMX21
+const struct imx_imx_i2c_data imx21_imx_i2c_data __initconst =
+       imx_imx_i2c_data_entry_single(MX21, "imx21-i2c", 0, , SZ_4K);
+#endif /* ifdef CONFIG_SOC_IMX21 */
+
+#ifdef CONFIG_SOC_IMX27
+const struct imx_imx_i2c_data imx27_imx_i2c_data[] __initconst = {
+#define imx27_imx_i2c_data_entry(_id, _hwid)                           \
+       imx_imx_i2c_data_entry(MX27, "imx21-i2c", _id, _hwid, SZ_4K)
+       imx27_imx_i2c_data_entry(0, 1),
+       imx27_imx_i2c_data_entry(1, 2),
+};
+#endif /* ifdef CONFIG_SOC_IMX27 */
+
+#ifdef CONFIG_SOC_IMX31
+const struct imx_imx_i2c_data imx31_imx_i2c_data[] __initconst = {
+#define imx31_imx_i2c_data_entry(_id, _hwid)                           \
+       imx_imx_i2c_data_entry(MX31, "imx21-i2c", _id, _hwid, SZ_4K)
+       imx31_imx_i2c_data_entry(0, 1),
+       imx31_imx_i2c_data_entry(1, 2),
+       imx31_imx_i2c_data_entry(2, 3),
+};
+#endif /* ifdef CONFIG_SOC_IMX31 */
+
+#ifdef CONFIG_SOC_IMX35
+const struct imx_imx_i2c_data imx35_imx_i2c_data[] __initconst = {
+#define imx35_imx_i2c_data_entry(_id, _hwid)                           \
+       imx_imx_i2c_data_entry(MX35, "imx21-i2c", _id, _hwid, SZ_4K)
+       imx35_imx_i2c_data_entry(0, 1),
+       imx35_imx_i2c_data_entry(1, 2),
+       imx35_imx_i2c_data_entry(2, 3),
+};
+#endif /* ifdef CONFIG_SOC_IMX35 */
+
+struct platform_device *__init imx_add_imx_i2c(
+               const struct imx_imx_i2c_data *data,
+               const struct imxi2c_platform_data *pdata)
+{
+       struct resource res[] = {
+               {
+                       .start = data->iobase,
+                       .end = data->iobase + data->iosize - 1,
+                       .flags = IORESOURCE_MEM,
+               }, {
+                       .start = data->irq,
+                       .end = data->irq,
+                       .flags = IORESOURCE_IRQ,
+               },
+       };
+
+       return imx_add_platform_device(data->devid, data->id,
+                       res, ARRAY_SIZE(res),
+                       pdata, sizeof(*pdata));
+}