Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / platform_data / mtd-nand-s3c2410.h

diff --git a/kernel/include/linux/platform_data/mtd-nand-s3c2410.h b/kernel/include/linux/platform_data/mtd-nand-s3c2410.h
new file mode 100644 (file)
index 0000000..36bb921
--- /dev/null
+++ b/kernel/include/linux/platform_data/mtd-nand-s3c2410.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2004 Simtec Electronics
+ *     Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 - NAND device controller platform_device info
+ *
+ * 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.
+*/
+
+#ifndef __MTD_NAND_S3C2410_H
+#define __MTD_NAND_S3C2410_H
+
+/**
+ * struct s3c2410_nand_set - define a set of one or more nand chips
+ * @disable_ecc:       Entirely disable ECC - Dangerous
+ * @flash_bbt:                 Openmoko u-boot can create a Bad Block Table
+ *                     Setting this flag will allow the kernel to
+ *                     look for it at boot time and also skip the NAND
+ *                     scan.
+ * @options:           Default value to set into 'struct nand_chip' options.
+ * @nr_chips:          Number of chips in this set
+ * @nr_partitions:     Number of partitions pointed to by @partitions
+ * @name:              Name of set (optional)
+ * @nr_map:            Map for low-layer logical to physical chip numbers (option)
+ * @partitions:                The mtd partition list
+ *
+ * define a set of one or more nand chips registered with an unique mtd. Also
+ * allows to pass flag to the underlying NAND layer. 'disable_ecc' will trigger
+ * a warning at boot time.
+ */
+struct s3c2410_nand_set {
+       unsigned int            disable_ecc:1;
+       unsigned int            flash_bbt:1;
+
+       unsigned int            options;
+       int                     nr_chips;
+       int                     nr_partitions;
+       char                    *name;
+       int                     *nr_map;
+       struct mtd_partition    *partitions;
+       struct nand_ecclayout   *ecc_layout;
+};
+
+struct s3c2410_platform_nand {
+       /* timing information for controller, all times in nanoseconds */
+
+       int     tacls;  /* time for active CLE/ALE to nWE/nOE */
+       int     twrph0; /* active time for nWE/nOE */
+       int     twrph1; /* time for release CLE/ALE from nWE/nOE inactive */
+
+       unsigned int    ignore_unset_ecc:1;
+
+       int                     nr_sets;
+       struct s3c2410_nand_set *sets;
+
+       void                    (*select_chip)(struct s3c2410_nand_set *,
+                                              int chip);
+};
+
+/**
+ * s3c_nand_set_platdata() - register NAND platform data.
+ * @nand: The NAND platform data to register with s3c_device_nand.
+ *
+ * This function copies the given NAND platform data, @nand and registers
+ * it with the s3c_device_nand. This allows @nand to be __initdata.
+*/
+extern void s3c_nand_set_platdata(struct s3c2410_platform_nand *nand);
+
+#endif /*__MTD_NAND_S3C2410_H */