Remove dead M-Systems Disk on Chip code

DOC support has been disabled by default for many years. The write function
does nothing but print text. It has a call to write_page_md2802() commented
out, but that function does not exist. This is dead code with ugly #ifdefs.

Updates README to reflect that there was a time when there was code, but it
didn't work. Removes M-Systems #defines and also includes svn rm msys_doc.*

Corresponding to flashrom svn r269 and coreboot v2 svn r3382.

Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Stefan Reinauer <stepan@coresystems.de>

1 files changed, 0 insertions, 99 deletions

diff --git a/msys_doc.h b/msys_doc.h
deleted file mode 100644
index 13915c9..0000000
--- a/msys_doc.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * This file is part of the flashrom project.
- *
- * Copyright (C) 2003 Niki W. Waibel <niki.waibel@gmx.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
- */
-
-#ifndef __MSYS_DOC_H__
-#define __MSYS_DOC_H__ 1
-
-/* idea from include/linux/mtd/doc2000.h */
-/* registers with __ should not be read/written directly */
-#define MSYSTEMS_DOC_R__ChipID                    0x1000
-#define MSYSTEMS_DOC_R__DOCStatus                 0x1001
-#define MSYSTEMS_DOC_W_DOCControl                 0x1002
-#define MSYSTEMS_DOC_R_FloorSelect                0x1003
-#define MSYSTEMS_DOC_W_FloorSelect                0x1003
-#define MSYSTEMS_DOC_R__CDSNControl               0x1004
-#define MSYSTEMS_DOC_W__CDSNControl               0x1004
-#define MSYSTEMS_DOC_R_CDSNDeviceSelect           0x1005
-#define MSYSTEMS_DOC_W_CDSNDeviceSelect           0x1005
-#define MSYSTEMS_DOC_R_ECCConfiguration           0x1006
-#define MSYSTEMS_DOC_W_ECCConfiguration           0x1006
-#define MSYSTEMS_DOC_R_CDSNSlowIO                 0x100d
-#define MSYSTEMS_DOC_W_CDSNSlowIO                 0x100d
-#define MSYSTEMS_DOC_R_ECCSyndrome0               0x1010
-#define MSYSTEMS_DOC_R_ECCSyndrome1               0x1011
-#define MSYSTEMS_DOC_R_ECCSyndrome2               0x1012
-#define MSYSTEMS_DOC_R_ECCSyndrome3               0x1013
-#define MSYSTEMS_DOC_R_ECCSyndrome4               0x1014
-#define MSYSTEMS_DOC_R_ECCSyndrome5               0x1015
-#define MSYSTEMS_DOC_R_AliasResolution            0x101b
-#define MSYSTEMS_DOC_W_AliasResolution            0x101b
-#define MSYSTEMS_DOC_R_ConfigurationInput         0x101c
-#define MSYSTEMS_DOC_W_ConfigurationInput         0x101c
-#define MSYSTEMS_DOC_R_ReadPipelineInitialization 0x101d
-#define MSYSTEMS_DOC_W_WritePipelineTermination   0x101e
-#define MSYSTEMS_DOC_R_LastDataRead               0x101f
-#define MSYSTEMS_DOC_W_LastDataRead               0x101f
-#define MSYSTEMS_DOC_R_NOP                        0x1020
-#define MSYSTEMS_DOC_W_NOP                        0x1020
-
-#define MSYSTEMS_DOC_R_IPL_0x0000                 0x0000
-#define MSYSTEMS_DOC_R_IPL_0x0001                 0x0001
-#define MSYSTEMS_DOC_R_IPL_0x0002                 0x0002
-#define MSYSTEMS_DOC_R_IPL_0x0003                 0x0003
-
-#define MSYSTEMS_DOC_R_CDSNIO_BASE                0x0800
-#define MSYSTEMS_DOC_W_CDSNIO_BASE                0x0800
-
-#define doc_read(base,reg) \
-	(*(volatile uint8_t *)(base + MSYSTEMS_DOC_R_##reg))
-
-#define doc_read_nop(base) \
-	doc_read(base, NOP)
-
-#define doc_read_2nop(base) \
-	{ doc_read_nop(base); doc_read_nop(base); }
-
-#define doc_read_4nop(base) \
-	{ doc_read_2nop(base); doc_read_2nop(base); }
-
-#define doc_write(data,base,reg) \
-	(*(volatile uint8_t *)(base + MSYSTEMS_DOC_W_##reg)) = data
-
-#define doc_write_nop(base) \
-	doc_write(0, base, NOP)
-
-#define doc_write_2nop(base) \
-	{ doc_write_nop(base); doc_write_nop(base); }
-
-#define doc_write_4nop(base) \
-	{ doc_write_2nop(base); doc_write_2nop(base); }
-
-#define _doc_busy(base)   /* 0: ready; -1: busy */ \
-	( ((doc_read(base, _CDSNControl) & 0x80) >> 7) - 1)
-
-#define doc_toggle(base)   /* 0, 1, 0, 1, 0, 1, ... if a doc is present */ \
-	( (doc_read(base, ECCConfiguration) & 0x04) >> 2 )
-
-int probe_md2802(struct flashchip *flash);
-int read_md2802(struct flashchip *flash, uint8_t *buf);
-int erase_md2802(struct flashchip *flash);
-int write_md2802(struct flashchip *flash, uint8_t *buf);
-
-#endif				/* !__MSYS_DOC_H__ */