lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] OneNAND: Simple Bad Block handling support

Browse Source 
Based on NAND memory bad block table code

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Kyungmin Park
2005-09-03 07:15:48 +01:00
committed by Thomas Gleixner
parent 52b0eea73d
commit cdc001305d
3 changed files with 98 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
include/linux/mtd/onenand.h
View File

@@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <linux/mtd/onenand_regs.h>
#include <linux/mtd/bbm.h>
#define MAX_BUFFERRAM 2
@@ -67,10 +68,14 @@ struct onenand_bufferram {
* @param wait [REPLACEABLE] hardware specific function for wait on ready
* @param read_bufferram [REPLACEABLE] hardware specific function for BufferRAM Area
* @param write_bufferram [REPLACEABLE] hardware specific function for BufferRAM Area
* @param read_word [REPLACEABLE] hardware specific function for read register of OneNAND
* @param write_word [REPLACEABLE] hardware specific function for write register of OneNAND
* @param scan_bbt [REPLACEALBE] hardware specific function for scaning Bad block Table
* @param chip_lock [INTERN] spinlock used to protect access to this structure and the chip
* @param wq [INTERN] wait queue to sleep on if a OneNAND operation is in progress
* @param state [INTERN] the current state of the OneNAND device
* @param autooob [REPLACEABLE] the default (auto)placement scheme
* @param bbm [REPLACEABLE] pointer to Bad Block Management
* @param priv [OPTIONAL] pointer to private chip date
*/
struct onenand_chip {
@@ -96,6 +101,8 @@ struct onenand_chip {
unsigned short (*read_word)(void __iomem *addr);
void (*write_word)(unsigned short value, void __iomem *addr);
void (*mmcontrol)(struct mtd_info *mtd, int sync_read);
int (*block_markbad)(struct mtd_info *mtd, loff_t ofs);
int (*scan_bbt)(struct mtd_info *mtd);
spinlock_t chip_lock;
wait_queue_head_t wq;
@@ -103,6 +110,8 @@ struct onenand_chip {
struct nand_oobinfo *autooob;
void *bbm;
void *priv;
};