remove more redundant files and clone files-2.6.23 for 2.6.24 - fixes rdc build errors

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13022 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 331 deletions

diff --git a/target/linux/generic-2.6/files-2.6.23/fs/yaffs2/yaffs_ecc.c b/target/linux/generic-2.6/files-2.6.23/fs/yaffs2/yaffs_ecc.c
deleted file mode 100644
index e2860393d3..0000000000
--- a/target/linux/generic-2.6/files-2.6.23/fs/yaffs2/yaffs_ecc.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * 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.
- */
-
-/*
- * This code implements the ECC algorithm used in SmartMedia.
- *
- * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
- * The two unused bit are set to 1.
- * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC
- * blocks are used on a 512-byte NAND page.
- *
- */
-
-/* Table generated by gen-ecc.c
- * Using a table means we do not have to calculate p1..p4 and p1'..p4'
- * for each byte of data. These are instead provided in a table in bits7..2.
- * Bit 0 of each entry indicates whether the entry has an odd or even parity, and therefore
- * this bytes influence on the line parity.
- */
-
-const char *yaffs_ecc_c_version =
-    "$Id: yaffs_ecc.c,v 1.9 2007-02-14 01:09:06 wookey Exp $";
-
-#include "yportenv.h"
-
-#include "yaffs_ecc.h"
-
-static const unsigned char column_parity_table[] = {
-	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
-	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
-	0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
-	0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95,
-	0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
-	0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99,
-	0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
-	0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c,
-	0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
-	0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5,
-	0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
-	0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30,
-	0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
-	0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c,
-	0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
-	0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9,
-	0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
-	0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9,
-	0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
-	0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c,
-	0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
-	0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30,
-	0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
-	0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5,
-	0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
-	0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c,
-	0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
-	0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99,
-	0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
-	0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95,
-	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
-	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
-};
-
-/* Count the bits in an unsigned char or a U32 */
-
-static int yaffs_CountBits(unsigned char x)
-{
-	int r = 0;
-	while (x) {
-		if (x & 1)
-			r++;
-		x >>= 1;
-	}
-	return r;
-}
-
-static int yaffs_CountBits32(unsigned x)
-{
-	int r = 0;
-	while (x) {
-		if (x & 1)
-			r++;
-		x >>= 1;
-	}
-	return r;
-}
-
-/* Calculate the ECC for a 256-byte block of data */
-void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc)
-{
-	unsigned int i;
-
-	unsigned char col_parity = 0;
-	unsigned char line_parity = 0;
-	unsigned char line_parity_prime = 0;
-	unsigned char t;
-	unsigned char b;
-
-	for (i = 0; i < 256; i++) {
-		b = column_parity_table[*data++];
-		col_parity ^= b;
-
-		if (b & 0x01)	// odd number of bits in the byte
-		{
-			line_parity ^= i;
-			line_parity_prime ^= ~i;
-		}
-
-	}
-
-	ecc[2] = (~col_parity) | 0x03;
-
-	t = 0;
-	if (line_parity & 0x80)
-		t |= 0x80;
-	if (line_parity_prime & 0x80)
-		t |= 0x40;
-	if (line_parity & 0x40)
-		t |= 0x20;
-	if (line_parity_prime & 0x40)
-		t |= 0x10;
-	if (line_parity & 0x20)
-		t |= 0x08;
-	if (line_parity_prime & 0x20)
-		t |= 0x04;
-	if (line_parity & 0x10)
-		t |= 0x02;
-	if (line_parity_prime & 0x10)
-		t |= 0x01;
-	ecc[1] = ~t;
-
-	t = 0;
-	if (line_parity & 0x08)
-		t |= 0x80;
-	if (line_parity_prime & 0x08)
-		t |= 0x40;
-	if (line_parity & 0x04)
-		t |= 0x20;
-	if (line_parity_prime & 0x04)
-		t |= 0x10;
-	if (line_parity & 0x02)
-		t |= 0x08;
-	if (line_parity_prime & 0x02)
-		t |= 0x04;
-	if (line_parity & 0x01)
-		t |= 0x02;
-	if (line_parity_prime & 0x01)
-		t |= 0x01;
-	ecc[0] = ~t;
-
-#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
-	// Swap the bytes into the wrong order
-	t = ecc[0];
-	ecc[0] = ecc[1];
-	ecc[1] = t;
-#endif
-}
-
-
-/* Correct the ECC on a 256 byte block of data */
-
-int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
-		     const unsigned char *test_ecc)
-{
-	unsigned char d0, d1, d2;	/* deltas */
-
-	d0 = read_ecc[0] ^ test_ecc[0];
-	d1 = read_ecc[1] ^ test_ecc[1];
-	d2 = read_ecc[2] ^ test_ecc[2];
-
-	if ((d0 | d1 | d2) == 0)
-		return 0; /* no error */
-
-	if (((d0 ^ (d0 >> 1)) & 0x55) == 0x55 &&
-	    ((d1 ^ (d1 >> 1)) & 0x55) == 0x55 &&
-	    ((d2 ^ (d2 >> 1)) & 0x54) == 0x54) {
-		/* Single bit (recoverable) error in data */
-
-		unsigned byte;
-		unsigned bit;
-
-#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
-		// swap the bytes to correct for the wrong order
-		unsigned char t;
-
-		t = d0;
-		d0 = d1;
-		d1 = t;
-#endif
-
-		bit = byte = 0;
-
-		if (d1 & 0x80)
-			byte |= 0x80;
-		if (d1 & 0x20)
-			byte |= 0x40;
-		if (d1 & 0x08)
-			byte |= 0x20;
-		if (d1 & 0x02)
-			byte |= 0x10;
-		if (d0 & 0x80)
-			byte |= 0x08;
-		if (d0 & 0x20)
-			byte |= 0x04;
-		if (d0 & 0x08)
-			byte |= 0x02;
-		if (d0 & 0x02)
-			byte |= 0x01;
-
-		if (d2 & 0x80)
-			bit |= 0x04;
-		if (d2 & 0x20)
-			bit |= 0x02;
-		if (d2 & 0x08)
-			bit |= 0x01;
-
-		data[byte] ^= (1 << bit);
-
-		return 1; /* Corrected the error */
-	}
-
-	if ((yaffs_CountBits(d0) +
-	     yaffs_CountBits(d1) +
-	     yaffs_CountBits(d2)) ==  1) {
-		/* Reccoverable error in ecc */
-
-		read_ecc[0] = test_ecc[0];
-		read_ecc[1] = test_ecc[1];
-		read_ecc[2] = test_ecc[2];
-
-		return 1; /* Corrected the error */
-	}
-
-	/* Unrecoverable error */
-
-	return -1;
-
-}
-
-
-/*
- * ECCxxxOther does ECC calcs on arbitrary n bytes of data
- */
-void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
-			     yaffs_ECCOther * eccOther)
-{
-	unsigned int i;
-
-	unsigned char col_parity = 0;
-	unsigned line_parity = 0;
-	unsigned line_parity_prime = 0;
-	unsigned char b;
-
-	for (i = 0; i < nBytes; i++) {
-		b = column_parity_table[*data++];
-		col_parity ^= b;
-
-		if (b & 0x01)	 {
-			/* odd number of bits in the byte */
-			line_parity ^= i;
-			line_parity_prime ^= ~i;
-		}
-
-	}
-
-	eccOther->colParity = (col_parity >> 2) & 0x3f;
-	eccOther->lineParity = line_parity;
-	eccOther->lineParityPrime = line_parity_prime;
-}
-
-int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
-			  yaffs_ECCOther * read_ecc,
-			  const yaffs_ECCOther * test_ecc)
-{
-	unsigned char cDelta;	/* column parity delta */
-	unsigned lDelta;	/* line parity delta */
-	unsigned lDeltaPrime;	/* line parity delta */
-	unsigned bit;
-
-	cDelta = read_ecc->colParity ^ test_ecc->colParity;
-	lDelta = read_ecc->lineParity ^ test_ecc->lineParity;
-	lDeltaPrime = read_ecc->lineParityPrime ^ test_ecc->lineParityPrime;
-
-	if ((cDelta | lDelta | lDeltaPrime) == 0)
-		return 0; /* no error */
-
-	if (lDelta == ~lDeltaPrime &&
-	    (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15))
-	{
-		/* Single bit (recoverable) error in data */
-
-		bit = 0;
-
-		if (cDelta & 0x20)
-			bit |= 0x04;
-		if (cDelta & 0x08)
-			bit |= 0x02;
-		if (cDelta & 0x02)
-			bit |= 0x01;
-
-		if(lDelta >= nBytes)
-			return -1;
-
-		data[lDelta] ^= (1 << bit);
-
-		return 1; /* corrected */
-	}
-
-	if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) +
-	     yaffs_CountBits(cDelta)) == 1) {
-		/* Reccoverable error in ecc */
-
-		*read_ecc = *test_ecc;
-		return 1; /* corrected */
-	}
-
-	/* Unrecoverable error */
-
-	return -1;
-
-}
-