move platform specific base-files into target/linux/<targetname>

SVN-Revision: 5621

2 files changed, 437 insertions, 0 deletions

diff --git a/target/linux/brcm-2.4/src/jffs2root.c b/target/linux/brcm-2.4/src/jffs2root.c
new file mode 100644
index 0000000..3562eb4
--- /dev/null
+++ b/target/linux/brcm-2.4/src/jffs2root.c
@@ -0,0 +1,133 @@
+/*
+ * jffs2root.c
+ *
+ * Copyright (C) 2005 Mike Baker 
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * $Id$
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#include <sys/ioctl.h>
+#include "mtd.h"
+
+#define FILENAME "/dev/mtdblock/1"
+
+struct trx_header {
+	unsigned magic;		/* "HDR0" */
+	unsigned len;		/* Length of file including header */
+	unsigned crc32;		/* 32-bit CRC from flag_version to end of file */
+	unsigned flag_version;	/* 0:15 flags, 16:31 version */
+	unsigned offsets[3];	/* Offsets of partitions from start of header */
+};
+
+unsigned long *crc32;
+
+void init_crc32()
+{
+	unsigned long crc;
+	unsigned long poly = 0xEDB88320L;
+	int n, bit;
+	if ((crc32 = (unsigned long *) malloc(256 * sizeof(unsigned long))) == (void *)-1) {
+		perror("malloc");
+		exit(1);
+	}
+	for (n = 0; n < 256; n++) {
+	crc = (unsigned long) n;
+	for (bit = 0; bit < 8; bit++)
+		crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1);
+	crc32[n] = crc;
+	}
+}
+
+unsigned int crc32buf(char *buf, size_t len)
+{
+	unsigned int crc = 0xFFFFFFFF;
+	for (; len; len--, buf++)
+	crc = crc32[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+	return crc;
+}
+
+int main(int argc, char **argv)
+{
+	int fd;
+	struct mtd_info_user mtdInfo;
+	unsigned long len;
+	struct trx_header *ptr;
+	char *buf;
+	
+	if (((fd = open(FILENAME, O_RDWR))	< 0)
+			|| ((len = lseek(fd, 0, SEEK_END)) < 0)
+			|| ((ptr = (struct trx_header *) mmap(0, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1))
+			|| (ptr->magic != 0x30524448)) {
+		printf("Error reading trx info\n");
+		exit(-1);
+	}
+	close (fd);
+
+	if (((fd = open("/dev/mtd/1", O_RDWR))	< 0)
+			|| (ioctl(fd, MEMGETINFO, &mtdInfo))) {
+		fprintf(stderr, "Could not get MTD device info from %s\n", FILENAME);
+		close(fd);
+		exit(1);
+	}
+	close(fd);
+
+	if (argc > 1 && !strcmp(argv[1],"--move")) {
+		if (ptr->offsets[2] >= ptr->len) {
+			printf("Partition already moved outside trx\n");
+		} else {
+			init_crc32();
+			ptr->offsets[2] +=	(mtdInfo.erasesize - 1);
+			ptr->offsets[2] &= ~(mtdInfo.erasesize - 1);
+			ptr->len = ptr->offsets[2];
+			ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
+			msync(ptr,sizeof(struct trx_header),MS_SYNC|MS_INVALIDATE);
+			printf("Partition moved; please reboot\n");
+		}
+	} else if (argc > 1 && !strcmp(argv[1], "--clean")) {
+		buf = (char *) ptr;
+		if (buf[ptr->offsets[1] - 1] == 0) {
+			init_crc32();
+			buf[ptr->offsets[1] - 1] = 1;
+			ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
+			msync(ptr,sizeof(struct trx_header),MS_SYNC|MS_INVALIDATE);
+			printf("Partition marked as clean\n");
+		}
+	} else {
+		int x;
+		printf(" erase: 0x%08x\n",mtdInfo.erasesize);
+		printf("=== trx ===\n");
+		printf("mapped: 0x%08x\n", (unsigned)ptr);
+		printf(" magic: 0x%08x\n", ptr->magic);
+		printf("	 len: 0x%08x\n", ptr->len);
+		printf("	 crc: 0x%08x\n", ptr->crc32);
+		for (x = 0; x < 3; x++)
+			printf(" offset[%d]: 0x%08x\n", x, ptr->offsets[x]);
+	}
+
+	munmap((void *) ptr, len);
+	return 0;
+}
diff --git a/target/linux/brcm-2.4/src/mtd.h b/target/linux/brcm-2.4/src/mtd.h
new file mode 100644
index 0000000..8b83afd
--- /dev/null
+++ b/target/linux/brcm-2.4/src/mtd.h
@@ -0,0 +1,304 @@
+
+/* $Id: mtd.h,v 1.38 2003/01/12 16:30:19 spse Exp $ */
+
+#ifndef __MTD_MTD_H__
+#define __MTD_MTD_H__
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/mtd/compatmac.h>
+#include <linux/notifier.h>
+#include <linux/module.h>
+#include <linux/uio.h>
+
+#endif /* __KERNEL__ */
+
+struct erase_info_user {
+	u_int32_t start;
+	u_int32_t length;
+};
+
+struct mtd_oob_buf {
+	u_int32_t start;
+	u_int32_t length;
+	unsigned char *ptr;
+};
+
+
+#define MTD_CHAR_MAJOR 90
+#define MTD_BLOCK_MAJOR 31
+#define MAX_MTD_DEVICES 16
+
+
+
+#define MTD_ABSENT		0
+#define MTD_RAM			1
+#define MTD_ROM			2
+#define MTD_NORFLASH		3
+#define MTD_NANDFLASH		4
+#define MTD_PEROM		5
+#define MTD_OTHER		14
+#define MTD_UNKNOWN		15
+
+
+
+#define MTD_CLEAR_BITS		1       // Bits can be cleared (flash)
+#define MTD_SET_BITS		2       // Bits can be set
+#define MTD_ERASEABLE		4       // Has an erase function
+#define MTD_WRITEB_WRITEABLE	8       // Direct IO is possible
+#define MTD_VOLATILE		16      // Set for RAMs
+#define MTD_XIP			32	// eXecute-In-Place possible
+#define MTD_OOB			64	// Out-of-band data (NAND flash)
+#define MTD_ECC			128	// Device capable of automatic ECC
+
+// Some common devices / combinations of capabilities
+#define MTD_CAP_ROM		0
+#define MTD_CAP_RAM		(MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE)
+#define MTD_CAP_NORFLASH        (MTD_CLEAR_BITS|MTD_ERASEABLE)
+#define MTD_CAP_NANDFLASH       (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB)
+#define MTD_WRITEABLE		(MTD_CLEAR_BITS|MTD_SET_BITS)
+
+
+// Types of automatic ECC/Checksum available
+#define MTD_ECC_NONE		0 	// No automatic ECC available
+#define MTD_ECC_RS_DiskOnChip	1	// Automatic ECC on DiskOnChip
+#define MTD_ECC_SW		2	// SW ECC for Toshiba & Samsung devices
+
+struct mtd_info_user {
+	u_char type;
+	u_int32_t flags;
+	u_int32_t size;	 // Total size of the MTD
+	u_int32_t erasesize;
+	u_int32_t oobblock;  // Size of OOB blocks (e.g. 512)
+	u_int32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+	u_int32_t ecctype;
+	u_int32_t eccsize;
+};
+
+struct region_info_user {
+	u_int32_t offset;		/* At which this region starts, 
+					 * from the beginning of the MTD */
+	u_int32_t erasesize;		/* For this region */
+	u_int32_t numblocks;		/* Number of blocks in this region */
+	u_int32_t regionindex;
+};
+
+#define MEMGETINFO              _IOR('M', 1, struct mtd_info_user)
+#define MEMERASE                _IOW('M', 2, struct erase_info_user)
+#define MEMWRITEOOB             _IOWR('M', 3, struct mtd_oob_buf)
+#define MEMREADOOB              _IOWR('M', 4, struct mtd_oob_buf)
+#define MEMLOCK                 _IOW('M', 5, struct erase_info_user)
+#define MEMUNLOCK               _IOW('M', 6, struct erase_info_user)
+#define MEMGETREGIONCOUNT	_IOR('M', 7, int)
+#define MEMGETREGIONINFO	_IOWR('M', 8, struct region_info_user)
+#define	MEMREADDATA             _IOWR('M', 9, struct mtd_oob_buf)
+#define	MEMWRITEDATA            _IOWR('M', 10, struct mtd_oob_buf)
+
+#ifndef __KERNEL__
+
+typedef struct mtd_info_user mtd_info_t;
+typedef struct erase_info_user erase_info_t;
+typedef struct region_info_user region_info_t;
+
+	/* User-space ioctl definitions */
+
+
+#else /* __KERNEL__ */
+
+
+#define MTD_ERASE_PENDING      	0x01
+#define MTD_ERASING		0x02
+#define MTD_ERASE_SUSPEND	0x04
+#define MTD_ERASE_DONE          0x08
+#define MTD_ERASE_FAILED        0x10
+
+struct erase_info {
+	struct mtd_info *mtd;
+	u_int32_t addr;
+	u_int32_t len;
+	u_long time;
+	u_long retries;
+	u_int dev;
+	u_int cell;
+	void (*callback) (struct erase_info *self);
+	u_long priv;
+	u_char state;
+	struct erase_info *next;
+};
+
+struct mtd_erase_region_info {
+	u_int32_t offset;			/* At which this region starts, from the beginning of the MTD */
+	u_int32_t erasesize;		/* For this region */
+	u_int32_t numblocks;		/* Number of blocks of erasesize in this region */
+};
+
+struct mtd_info {
+	u_char type;
+	u_int32_t flags;
+	u_int32_t size;	 // Total size of the MTD
+
+	/* "Major" erase size for the device. Naïve users may take this
+	 * to be the only erase size available, or may use the more detailed
+	 * information below if they desire
+	 */
+	u_int32_t erasesize;
+
+	u_int32_t oobblock;  // Size of OOB blocks (e.g. 512)
+	u_int32_t oobsize;   // Amount of OOB data per block (e.g. 16)
+	u_int32_t ecctype;
+	u_int32_t eccsize;
+
+	// Kernel-only stuff starts here.
+	char *name;
+	int index;
+
+	/* Data for variable erase regions. If numeraseregions is zero,
+	 * it means that the whole device has erasesize as given above. 
+	 */
+	int numeraseregions;
+	struct mtd_erase_region_info *eraseregions; 
+
+	/* This really shouldn't be here. It can go away in 2.5 */
+	u_int32_t bank_size;
+
+	struct module *module;
+	int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
+
+	/* This stuff for eXecute-In-Place */
+	int (*point) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf);
+
+	/* We probably shouldn't allow XIP if the unpoint isn't a NULL */
+	void (*unpoint) (struct mtd_info *mtd, u_char * addr, loff_t from, size_t len);
+
+
+	int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+	int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+
+	int (*read_ecc) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf, u_char *eccbuf, int oobsel);
+	int (*write_ecc) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf, u_char *eccbuf, int oobsel);
+
+	int (*read_oob) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+	int (*write_oob) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+
+	/* 
+	 * Methods to access the protection register area, present in some 
+	 * flash devices. The user data is one time programmable but the
+	 * factory data is read only. 
+	 */
+	int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+	int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+	/* This function is not yet implemented */
+	int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+
+	/* iovec-based read/write methods. We need these especially for NAND flash,
+	   with its limited number of write cycles per erase.
+	   NB: The 'count' parameter is the number of _vectors_, each of 
+	   which contains an (ofs, len) tuple.
+	*/
+	int (*readv) (struct mtd_info *mtd, struct iovec *vecs, unsigned long count, loff_t from, size_t *retlen);
+	int (*readv_ecc) (struct mtd_info *mtd, struct iovec *vecs, unsigned long count, loff_t from, 
+		size_t *retlen, u_char *eccbuf, int oobsel);
+	int (*writev) (struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to, size_t *retlen);
+	int (*writev_ecc) (struct mtd_info *mtd, const struct iovec *vecs, unsigned long count, loff_t to, 
+		size_t *retlen, u_char *eccbuf, int oobsel);
+
+	/* Sync */
+	void (*sync) (struct mtd_info *mtd);
+
+	/* Chip-supported device locking */
+	int (*lock) (struct mtd_info *mtd, loff_t ofs, size_t len);
+	int (*unlock) (struct mtd_info *mtd, loff_t ofs, size_t len);
+
+	/* Power Management functions */
+	int (*suspend) (struct mtd_info *mtd);
+	void (*resume) (struct mtd_info *mtd);
+
+	struct notifier_block reboot_notifier;
+
+	void *priv;
+};
+
+
+	/* Kernel-side ioctl definitions */
+
+extern int add_mtd_device(struct mtd_info *mtd);
+extern int del_mtd_device (struct mtd_info *mtd);
+
+extern struct mtd_info *__get_mtd_device(struct mtd_info *mtd, int num);
+
+static inline struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num)
+{
+	struct mtd_info *ret;
+	
+	ret = __get_mtd_device(mtd, num);
+
+	if (ret && ret->module && !try_inc_mod_count(ret->module))
+		return NULL;
+
+	return ret;
+}
+
+static inline void put_mtd_device(struct mtd_info *mtd)
+{
+       if (mtd->module)
+	       __MOD_DEC_USE_COUNT(mtd->module);
+}
+
+
+struct mtd_notifier {
+	void (*add)(struct mtd_info *mtd);
+	void (*remove)(struct mtd_info *mtd);
+	struct mtd_notifier *next;
+};
+
+
+extern void register_mtd_user (struct mtd_notifier *new);
+extern int unregister_mtd_user (struct mtd_notifier *old);
+
+int default_mtd_writev(struct mtd_info *mtd, const struct iovec *vecs,
+		       unsigned long count, loff_t to, size_t *retlen);
+
+int default_mtd_readv(struct mtd_info *mtd, struct iovec *vecs,
+		      unsigned long count, loff_t from, size_t *retlen);
+
+#ifndef MTDC
+#define MTD_ERASE(mtd, args...) (*(mtd->erase))(mtd, args)
+#define MTD_POINT(mtd, a,b,c,d) (*(mtd->point))(mtd, a,b,c, (u_char **)(d))
+#define MTD_UNPOINT(mtd, arg) (*(mtd->unpoint))(mtd, (u_char *)arg)
+#define MTD_READ(mtd, args...) (*(mtd->read))(mtd, args)
+#define MTD_WRITE(mtd, args...) (*(mtd->write))(mtd, args)
+#define MTD_READV(mtd, args...) (*(mtd->readv))(mtd, args)
+#define MTD_WRITEV(mtd, args...) (*(mtd->writev))(mtd, args)
+#define MTD_READECC(mtd, args...) (*(mtd->read_ecc))(mtd, args)
+#define MTD_WRITEECC(mtd, args...) (*(mtd->write_ecc))(mtd, args)
+#define MTD_READOOB(mtd, args...) (*(mtd->read_oob))(mtd, args)
+#define MTD_WRITEOOB(mtd, args...) (*(mtd->write_oob))(mtd, args)
+#define MTD_SYNC(mtd) do { if (mtd->sync) (*(mtd->sync))(mtd);  } while (0) 
+#endif /* MTDC */
+
+/*
+ * Debugging macro and defines
+ */
+#define MTD_DEBUG_LEVEL0	(0)	/* Quiet   */
+#define MTD_DEBUG_LEVEL1	(1)	/* Audible */
+#define MTD_DEBUG_LEVEL2	(2)	/* Loud    */
+#define MTD_DEBUG_LEVEL3	(3)	/* Noisy   */
+
+#ifdef CONFIG_MTD_DEBUG
+#define DEBUG(n, args...)				\
+ 	do {						\
+		if (n <= CONFIG_MTD_DEBUG_VERBOSE)	\
+			printk(KERN_INFO args);		\
+	} while(0)
+#else /* CONFIG_MTD_DEBUG */
+#define DEBUG(n, args...)
+#endif /* CONFIG_MTD_DEBUG */
+
+#endif /* __KERNEL__ */
+
+#endif /* __MTD_MTD_H__ */