Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/mtd/jedec.h b/include/linux/mtd/jedec.h
new file mode 100644
index 0000000..2ba0f70
--- /dev/null
+++ b/include/linux/mtd/jedec.h
@@ -0,0 +1,66 @@
+
+/* JEDEC Flash Interface.
+ * This is an older type of interface for self programming flash. It is
+ * commonly use in older AMD chips and is obsolete compared with CFI.
+ * It is called JEDEC because the JEDEC association distributes the ID codes
+ * for the chips.
+ *
+ * See the AMD flash databook for information on how to operate the interface.
+ *
+ * $Id: jedec.h,v 1.3 2003/05/21 11:51:01 dwmw2 Exp $
+ */
+
+#ifndef __LINUX_MTD_JEDEC_H__
+#define __LINUX_MTD_JEDEC_H__
+
+#include <linux/types.h>
+
+#define MAX_JEDEC_CHIPS 16
+
+// Listing of all supported chips and their information
+struct JEDECTable
+{
+ __u16 jedec;
+ char *name;
+ unsigned long size;
+ unsigned long sectorsize;
+ __u32 capabilities;
+};
+
+// JEDEC being 0 is the end of the chip array
+struct jedec_flash_chip
+{
+ __u16 jedec;
+ unsigned long size;
+ unsigned long sectorsize;
+
+ // *(__u8*)(base + (adder << addrshift)) = data << datashift
+ // Address size = size << addrshift
+ unsigned long base; // Byte 0 of the flash, will be unaligned
+ unsigned int datashift; // Useful for 32bit/16bit accesses
+ unsigned int addrshift;
+ unsigned long offset; // linerized start. base==offset for unbanked, uninterleaved flash
+
+ __u32 capabilities;
+
+ // These markers are filled in by the flash_chip_scan function
+ unsigned long start;
+ unsigned long length;
+};
+
+struct jedec_private
+{
+ unsigned long size; // Total size of all the devices
+
+ /* Bank handling. If sum(bank_fill) == size then this is linear flash.
+ Otherwise the mapping has holes in it. bank_fill may be used to
+ find the holes, but in the common symetric case
+ bank_fill[0] == bank_fill[*], thus addresses may be computed
+ mathmatically. bank_fill must be powers of two */
+ unsigned is_banked;
+ unsigned long bank_fill[MAX_JEDEC_CHIPS];
+
+ struct jedec_flash_chip chips[MAX_JEDEC_CHIPS];
+};
+
+#endif