mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
cfa460adfd
A lot changed in the Linux MTD code, since it was last ported from Linux to U-Boot. This patch takes U-Boot NAND support to the level of Linux 2.6.22.1 and will enable support for very large NAND devices (4KB pages) and ease the compatibility between U-Boot and Linux filesystems. This patch is tested on two custom boards with PPC and ARM processors running YAFFS in U-Boot and Linux using gcc-4.1.2 cross compilers. MAKEALL ppc/arm has some issues: * DOC/OneNand/nand_spl is not building (I have not tried porting these parts, and since I do not have any HW and I am not familiar with this code/HW I think its best left to someone else.) Except for the issues mentioned above, I have ported all drivers necessary to run MAKEALL ppc/arm without errors and warnings. Many drivers were trivial to port, but some were not so trivial. The following drivers must be examined carefully and maybe rewritten to some degree: cpu/ppc4xx/ndfc.c cpu/arm926ejs/davinci/nand.c board/delta/nand.c board/zylonite/nand.c Signed-off-by: William Juul <william.juul@tandberg.com> Signed-off-by: Stig Olsen <stig.olsen@tandberg.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
|
|
* $Id: nftl.h,v 1.16 2004/06/30 14:49:00 dbrown Exp $
|
|
*
|
|
* (C) 1999-2003 David Woodhouse <dwmw2@infradead.org>
|
|
*/
|
|
|
|
#ifndef __MTD_NFTL_H__
|
|
#define __MTD_NFTL_H__
|
|
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/blktrans.h>
|
|
|
|
#include <linux/mtd/nftl-user.h>
|
|
|
|
/* these info are used in ReplUnitTable */
|
|
#define BLOCK_NIL 0xffff /* last block of a chain */
|
|
#define BLOCK_FREE 0xfffe /* free block */
|
|
#define BLOCK_NOTEXPLORED 0xfffd /* non explored block, only used during mounting */
|
|
#define BLOCK_RESERVED 0xfffc /* bios block or bad block */
|
|
|
|
struct NFTLrecord {
|
|
struct mtd_blktrans_dev mbd;
|
|
__u16 MediaUnit, SpareMediaUnit;
|
|
__u32 EraseSize;
|
|
struct NFTLMediaHeader MediaHdr;
|
|
int usecount;
|
|
unsigned char heads;
|
|
unsigned char sectors;
|
|
unsigned short cylinders;
|
|
__u16 numvunits;
|
|
__u16 lastEUN; /* should be suppressed */
|
|
__u16 numfreeEUNs;
|
|
__u16 LastFreeEUN; /* To speed up finding a free EUN */
|
|
int head,sect,cyl;
|
|
__u16 *EUNtable; /* [numvunits]: First EUN for each virtual unit */
|
|
__u16 *ReplUnitTable; /* [numEUNs]: ReplUnitNumber for each */
|
|
unsigned int nb_blocks; /* number of physical blocks */
|
|
unsigned int nb_boot_blocks; /* number of blocks used by the bios */
|
|
struct erase_info instr;
|
|
struct nand_ecclayout oobinfo;
|
|
};
|
|
|
|
int NFTL_mount(struct NFTLrecord *s);
|
|
int NFTL_formatblock(struct NFTLrecord *s, int block);
|
|
|
|
#ifndef NFTL_MAJOR
|
|
#define NFTL_MAJOR 93
|
|
#endif
|
|
|
|
#define MAX_NFTLS 16
|
|
#define MAX_SECTORS_PER_UNIT 64
|
|
#define NFTL_PARTN_BITS 4
|
|
|
|
#endif /* __MTD_NFTL_H__ */
|