On Mon, Jul 25, 2011 at 11:07:46PM +0800, Shawn Guo wrote:

It adds function mxc_iomuxc_dt_init() to parse iomuxc pad configuration
from device tree.

Signed-off-by: Shawn Guo <redacted>
Cc: Grant Likely <redacted>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
---
 .../devicetree/bindings/arm/fsl/iomuxc.txt         |   47 +++++++++++++
 arch/arm/mach-mx5/Makefile                         |    2 +
 arch/arm/mach-mx5/iomuxc-dt.c                      |   72 ++++++++++++++++++++
 arch/arm/plat-mxc/include/mach/common.h            |    3 +
 4 files changed, 124 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/fsl/iomuxc.txt
 create mode 100644 arch/arm/mach-mx5/iomuxc-dt.c

+ */
+
+#include <linux/of.h>
+#include <asm/io.h>

linux/io.h

+
+#define IOMUXC_CONFIG_SION	(1 << 4)
+
+void mxc_iomuxc_dt_init(const struct of_device_id *match)
+{
+	struct device_node *node = of_find_matching_node(NULL, match);
+	struct device_node *child;
+	void __iomem *base;
+	u32 reg[2], select_input[2];
+	u32 mux_mode, pad_ctl;
+
+	if (!node) {
+		pr_warn("%s: no iomuxc node found\n", __func__);
+		return;
+	}

Please remove this warning. Some boards may intentionally do the iomux
setup in the bootloader and skip the iomux setup nodes in the device
tree.

Sascha

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