summaryrefslogtreecommitdiffstats
path: root/kernel/include/linux/spi/flash.h
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/include/linux/spi/flash.h')
-rw-r--r--kernel/include/linux/spi/flash.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/kernel/include/linux/spi/flash.h b/kernel/include/linux/spi/flash.h
new file mode 100644
index 000000000..3f22932e6
--- /dev/null
+++ b/kernel/include/linux/spi/flash.h
@@ -0,0 +1,31 @@
+#ifndef LINUX_SPI_FLASH_H
+#define LINUX_SPI_FLASH_H
+
+struct mtd_partition;
+
+/**
+ * struct flash_platform_data: board-specific flash data
+ * @name: optional flash device name (eg, as used with mtdparts=)
+ * @parts: optional array of mtd_partitions for static partitioning
+ * @nr_parts: number of mtd_partitions for static partitoning
+ * @type: optional flash device type (e.g. m25p80 vs m25p64), for use
+ * with chips that can't be queried for JEDEC or other IDs
+ *
+ * Board init code (in arch/.../mach-xxx/board-yyy.c files) can
+ * provide information about SPI flash parts (such as DataFlash) to
+ * help set up the device and its appropriate default partitioning.
+ *
+ * Note that for DataFlash, sizes for pages, blocks, and sectors are
+ * rarely powers of two; and partitions should be sector-aligned.
+ */
+struct flash_platform_data {
+ char *name;
+ struct mtd_partition *parts;
+ unsigned int nr_parts;
+
+ char *type;
+
+ /* we'll likely add more ... use JEDEC IDs, etc */
+};
+
+#endif