mtd: add device-tree support to spear_smi

This patch adds support to configure the SPEAr SMI driver via
device-tree instead of platform_data.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/mtd/spear_smi.h b/include/linux/mtd/spear_smi.h
index 4e26b4e38da..8ae1726044c 100644
--- a/include/linux/mtd/spear_smi.h
+++ b/include/linux/mtd/spear_smi.h
@@ -14,6 +14,10 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
+
+/* max possible slots for serial-nor flash chip in the SMI controller */
+#define MAX_NUM_FLASH_CHIP      4
 
 /* macro to define partitions for flash devices */
 #define DEFINE_PARTS(n, of, s)          \
@@ -55,6 +59,7 @@ struct spear_smi_plat_data {
         unsigned long clk_rate;
         int num_flashes;
         struct spear_smi_flash_info *board_flash_info;
+        struct device_node *np[MAX_NUM_FLASH_CHIP];
 };
 
 #endif /* __MTD_SPEAR_SMI_H */