patch-2.4.0-test3 linux/include/linux/mtd/doc2000.h

• Lines: 115
• Date: Tue Jul 4 10:10:52 2000
• Orig file: v2.4.0-test2/linux/include/linux/mtd/doc2000.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test2/linux/include/linux/mtd/doc2000.h linux/include/linux/mtd/doc2000.h
@@ -0,0 +1,114 @@
+
+/* Linux driver for Disk-On-Chip 2000       */
+/* (c) 1999 Machine Vision Holdings, Inc.   */
+/* Author: David Woodhouse <dwmw2@mvhi.com> */
+/* $Id: doc2000.h,v 1.7 2000/06/26 20:40:53 dwmw2 Exp $ */
+
+#ifndef __MTD_DOC2000_H__
+#define __MTD_DOC2000_H__
+
+#include <linux/mtd/mtd.h>
+
+
+#define DoC_M_CDSN_IO 0x800
+#define DoC_Sig1 0
+#define DoC_Sig2 1
+
+#define DoC_ChipID 0x1000
+#define DoC_DOCStatus 0x1001
+#define DoC_DOCControl 0x1002
+#define DoC_FloorSelect 0x1003
+#define DoC_CDSNControl 0x1004
+#define DoC_CDSNDeviceSelect 0x1005
+#define DoC_ECCConf 0x1006
+#define DoC_2k_ECCStatus 0x1007
+
+#define DoC_CDSNSlowIO 0x100d
+#define DoC_ECCSyndrome0 0x1010
+#define DoC_ECCSyndrome1 0x1011
+#define DoC_ECCSyndrome2 0x1012
+#define DoC_ECCSyndrome3 0x1013
+#define DoC_ECCSyndrome4 0x1014
+#define DoC_ECCSyndrome5 0x1015
+#define DoC_AliasResolution 0x101b
+#define DoC_ConfigInput 0x101c
+#define DoC_ReadPipeInit 0x101d
+#define DoC_WritePipeTerm 0x101e
+#define DoC_LastDataRead 0x101f
+#define DoC_NOP 0x1020
+
+#define DoC_2k_CDSN_IO 0x1800
+
+/* How to access the device? 
+ * On ARM, it'll be mmap'd directly with 32-bit wide accesses. 
+ * On PPC, it's mmap'd and 16-bit wide.
+ * Others use readb/writeb 
+ */
+#if defined(__arm__) 
+#define ReadDOC(adr, reg)      ((unsigned char)(*(__u32 *)(((unsigned long)adr)+(DoC_##reg<<2))))
+#define WriteDOC(d, adr, reg)  do{ *(__u32 *)(((unsigned long)adr)+(DoC_##reg<<2)) = (__u32)d} while(0)
+#elif defined(__ppc__)
+#define ReadDOC(adr, reg)      ((unsigned char)(*(__u16 *)(((unsigned long)adr)+(DoC_##reg<<1))))
+#define WriteDOC(d, adr, reg)  do{ *(__u16 *)(((unsigned long)adr)+(DoC_##reg<<1)) = (__u16)d} while(0)
+#else
+#define ReadDOC(adr, reg)      readb(((unsigned long)adr) + DoC_##reg)
+#define WriteDOC(d, adr, reg)  writeb(d, ((unsigned long)adr) + DoC_##reg)
+#endif
+#define DOC_MODE_RESET 0
+#define DOC_MODE_NORMAL 1
+#define DOC_MODE_RESERVED1 2
+#define DOC_MODE_RESERVED2 3
+
+#define DOC_MODE_MDWREN 4
+#define DOC_MODE_CLR_ERR 0x80
+
+#define DOC_ChipID_Doc2k 0x20
+#define DOC_ChipID_DocMil 0x30
+
+#define CDSN_CTRL_FR_B 0x80
+#define CDSN_CTRL_ECC_IO 0x20
+#define CDSN_CTRL_FLASH_IO 0x10
+#define CDSN_CTRL_WP 8
+#define CDSN_CTRL_ALE 4
+#define CDSN_CTRL_CLE 2
+#define CDSN_CTRL_CE 1
+
+#define DOC_ECC_RESET 0
+#define DOC_ECC_ERROR 0x80
+#define DOC_ECC_RW 0x20
+#define DOC_ECC__EN 0x08
+#define DOC_TOGGLE_BIT 0x04
+#define DOC_ECC_RESV 0x02
+/* We have to also set the reserved bit 1 for enable */
+#define DOC_ECC_EN (DOC_ECC__EN | DOC_ECC_RESV)
+
+struct Nand {
+	char floor, chip;
+	unsigned long curadr;
+	unsigned char curmode;
+	/* Also some erase/write/pipeline info when we get that far */
+};
+
+#define MAX_FLOORS 4
+#define MAX_CHIPS 4
+
+struct DiskOnChip {
+	unsigned long physadr;
+	unsigned long virtadr;
+	unsigned long totlen;
+	char ChipID; /* Type of DiskOnChip */
+	
+	unsigned long mfr; /* Flash IDs - only one type of flash per device */
+	unsigned long id;
+	int chipshift;
+	
+	int curfloor;
+	int curchip;
+	
+	int numchips;
+	struct Nand *chips;
+	struct mtd_info *nextdoc;
+};
+
+
+#endif /* __MTD_DOC2000_H__ */