imx: dynamically register flexcan devices for mx25 and mx35

In order to make this patch compile, even if the flexcan driver with
it's header defining the platform data isn't merged yet, two ifdefs have
been added. They effect that the "imx_add_flexcan" function results in a
no-op function if the driver hasn't been activated.

These ifdefs can be removed after the flexcan driver has been merged.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

diff --git a/arch/arm/mach-mx25/devices-imx25.h b/arch/arm/mach-mx25/devices-imx25.h
index 2025cb947fcfd92a9478faec167e15434dd11245..d86a7c3ca8b0cf64c7b7cb69af2e7dc883194df0 100644 (file)
--- a/arch/arm/mach-mx25/devices-imx25.h
+++ b/arch/arm/mach-mx25/devices-imx25.h
@@ -9,6 +9,11 @@
 #include <mach/mx25.h>
 #include <mach/devices-common.h>
 
+#define imx25_add_flexcan0(pdata)      \
+       imx_add_flexcan(0, MX25_CAN1_BASE_ADDR, SZ_16K, MX25_INT_CAN1, pdata)
+#define imx25_add_flexcan1(pdata)      \
+       imx_add_flexcan(1, MX25_CAN2_BASE_ADDR, SZ_16K, MX25_INT_CAN2, pdata)
+
 #define imx25_add_imx_i2c0(pdata)      \
        imx_add_imx_i2c(0, MX25_I2C1_BASE_ADDR, SZ_16K, MX25_INT_I2C1, pdata)
 #define imx25_add_imx_i2c1(pdata)      \

diff --git a/arch/arm/mach-mx3/devices-imx35.h b/arch/arm/mach-mx3/devices-imx35.h
index 536d9b9a250b7b0b04d51f63257e989a9b155262..f6a431a4c3d2ebdf45c82ed6f54afcdbaccd73e1 100644 (file)
--- a/arch/arm/mach-mx3/devices-imx35.h
+++ b/arch/arm/mach-mx3/devices-imx35.h
@@ -9,6 +9,11 @@
 #include <mach/mx35.h>
 #include <mach/devices-common.h>
 
+#define imx35_add_flexcan0(pdata)      \
+       imx_add_flexcan(0, MX35_CAN1_BASE_ADDR, SZ_16K, MX35_INT_CAN1, pdata)
+#define imx35_add_flexcan1(pdata)      \
+       imx_add_flexcan(1, MX35_CAN2_BASE_ADDR, SZ_16K, MX35_INT_CAN2, pdata)
+
 #define imx35_add_imx_i2c0(pdata)      \
        imx_add_imx_i2c(0, MX35_I2C1_BASE_ADDR, SZ_4K, MX35_INT_I2C1, pdata)
 #define imx35_add_imx_i2c1(pdata)      \

diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig
index 09230f8c802a2234a0c56e4eeebeec26ad1eba26..9ab784b776f9192a33feaff37ff21be99b0a3691 100644 (file)
--- a/arch/arm/plat-mxc/devices/Kconfig
+++ b/arch/arm/plat-mxc/devices/Kconfig
@@ -1,3 +1,7 @@
+config IMX_HAVE_PLATFORM_FLEXCAN
+       select HAVE_CAN_FLEXCAN
+       bool
+
 config IMX_HAVE_PLATFORM_IMX_I2C
        bool
 

diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile
index 5ecbb244d210d9ac9bf948c3629099f538cff6c9..347da5161f7e82521c0b6f4d930742267068fcdc 100644 (file)
--- a/arch/arm/plat-mxc/devices/Makefile
+++ b/arch/arm/plat-mxc/devices/Makefile
@@ -1,3 +1,7 @@
+ifdef CONFIG_CAN_FLEXCAN
+# the ifdef can be removed once the flexcan driver has been merged
+obj-$(CONFIG_IMX_HAVE_PLATFORM_FLEXCAN) +=  platform-flexcan.o
+endif
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_I2C) += platform-imx-i2c.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_UART) += platform-imx-uart.o
 obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_NAND) += platform-mxc_nand.o

diff --git a/arch/arm/plat-mxc/devices/platform-flexcan.c b/arch/arm/plat-mxc/devices/platform-flexcan.c
new file mode 100644 (file)
index 0000000..5e97a01
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-flexcan.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2010 Pengutronix, Marc Kleine-Budde <kernel@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 <mach/devices-common.h>
+
+struct platform_device *__init imx_add_flexcan(int id,
+               resource_size_t iobase, resource_size_t iosize,
+               resource_size_t irq,
+               const struct flexcan_platform_data *pdata)
+{
+       struct resource res[] = {
+               {
+                       .start = iobase,
+                       .end = iobase + iosize - 1,
+                       .flags = IORESOURCE_MEM,
+               }, {
+                       .start = irq,
+                       .end = irq,
+                       .flags = IORESOURCE_IRQ,
+               },
+       };
+
+       return imx_add_platform_device("flexcan", id, res, ARRAY_SIZE(res),
+                       pdata, sizeof(*pdata));
+}

diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index 05c8d3f0a08ffba821ac9bdc6cae8fa9c78214e2..c5f68c587309e2f37949f61c540fcf7826587f70 100644 (file)
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -14,6 +14,24 @@ struct platform_device *imx_add_platform_device(const char *name, int id,
                const struct resource *res, unsigned int num_resources,
                const void *data, size_t size_data);
 
+#if defined (CONFIG_CAN_FLEXCAN) || defined (CONFIG_CAN_FLEXCAN_MODULE)
+#include <linux/can/platform/flexcan.h>
+struct platform_device *__init imx_add_flexcan(int id,
+               resource_size_t iobase, resource_size_t iosize,
+               resource_size_t irq,
+               const struct flexcan_platform_data *pdata);
+#else
+/* the ifdef can be removed once the flexcan driver has been merged */
+struct flexcan_platform_data;
+static inline struct platform_device *__init imx_add_flexcan(int id,
+               resource_size_t iobase, resource_size_t iosize,
+               resource_size_t irq,
+               const struct flexcan_platform_data *pdata)
+{
+       return NULL;
+}
+#endif
+
 #include <mach/i2c.h>
 struct platform_device *__init imx_add_imx_i2c(int id,
                resource_size_t iobase, resource_size_t iosize, int irq,