From 2255b2d2044d434463eb2661e18018e50f1643d9 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Tue, 10 Oct 2006 12:36:02 +0200 Subject: * Several improvements to the new NAND subsystem: - JFFS2 related commands implemented in mtd-utils style - Support for bad blocks - Bad block testing commands - NAND lock commands Please take a look at doc/README.nand for more details Patch by Guido Classen, 10 Oct 2006 --- include/nand.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) (limited to 'include') diff --git a/include/nand.h b/include/nand.h index 905115b3da..5c7311fd50 100644 --- a/include/nand.h +++ b/include/nand.h @@ -60,4 +60,61 @@ static inline int nand_erase(nand_info_t *info, ulong off, ulong size) return info->erase(info, &instr); } + +/***************************************************************************** + * declarations from nand_util.c + ****************************************************************************/ + +struct nand_write_options { + u_char *buffer; /* memory block containing image to write */ + ulong length; /* number of bytes to write */ + ulong offset; /* start address in NAND */ + int quiet; /* don't display progress messages */ + int autoplace; /* if true use auto oob layout */ + int forcejffs2; /* force jffs2 oob layout */ + int forceyaffs; /* force yaffs oob layout */ + int noecc; /* write without ecc */ + int writeoob; /* image contains oob data */ + int pad; /* pad to page size */ + int blockalign; /* 1|2|4 set multiple of eraseblocks + * to align to */ +}; + +typedef struct nand_write_options nand_write_options_t; + +struct nand_read_options { + u_char *buffer; /* memory block in which read image is written*/ + ulong length; /* number of bytes to read */ + ulong offset; /* start address in NAND */ + int quiet; /* don't display progress messages */ + int readoob; /* put oob data in image */ +}; + +typedef struct nand_read_options nand_read_options_t; + +struct nand_erase_options { + ulong length; /* number of bytes to erase */ + ulong offset; /* first address in NAND to erase */ + int quiet; /* don't display progress messages */ + int jffs2; /* if true: format for jffs2 usage + * (write appropriate cleanmarker blocks) */ + int scrub; /* if true, really clean NAND by erasing + * bad blocks (UNSAFE) */ +}; + +typedef struct nand_erase_options nand_erase_options_t; + +int nand_write_opts(nand_info_t *meminfo, const nand_write_options_t *opts); + +int nand_read_opts(nand_info_t *meminfo, const nand_read_options_t *opts); +int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts); + +#define NAND_LOCK_STATUS_TIGHT 0x01 +#define NAND_LOCK_STATUS_LOCK 0x02 +#define NAND_LOCK_STATUS_UNLOCK 0x04 + +int nand_lock( nand_info_t *meminfo, int tight ); +int nand_unlock( nand_info_t *meminfo, ulong start, ulong length ); +int nand_get_lock_status(nand_info_t *meminfo, ulong offset); + #endif -- cgit v1.2.1