Dear Kyungmin Park, 2008/10/28 Kyungmin Park <[EMAIL PROTECTED]>: > UBI (Latin: "where?") stands for "Unsorted Block Images". It is a volume > management system for flash devices which manages multiple logical volumes on > a single physical flash device and spreads the I/O load (i.e, wear-leveling) > across the whole flash chip. > > In a sense, UBI may be compared to the Logical Volume Manager (LVM). Whereas > LVM maps logical sectors to physical sectors, UBI maps logical eraseblocks to > physical eraseblocks. But besides the mapping, UBI implements global > wear-leveling and I/O errors handling. > > For more details, Please visit the following URL. > http://www.linux-mtd.infradead.org/doc/ubi.html > > Signed-off-by: Kyungmin Park <[EMAIL PROTECTED]> > --- > diff --git a/include/ubi_uboot.h b/include/ubi_uboot.h > new file mode 100644 > index 0000000..b4b2fa2 > --- /dev/null > +++ b/include/ubi_uboot.h > @@ -0,0 +1,218 @@ > +/* > + * Header file for UBI support for U-Boot > + * > + * Adaptation from kernel to U-Boot > + * > + * Copyright (C) 2005-2007 Samsung Electronics > + * Kyungmin Park <[EMAIL PROTECTED]> > + * > + * 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. > + */ > + > +#ifndef __UBOOT_UBI_H > +#define __UBOOT_UBI_H > + > +#include <common.h> > +#include <malloc.h> > +#include <div64.h> > +#include <linux/crc32.h> > +#include <linux/mtd/mtd.h> > + > +#ifdef CONFIG_CMD_ONENAND > +#include <onenand_uboot.h> > +#endif > + > +#include <asm/errno.h> > + > +#define DPRINTK(format, args...) \ > +do { \ > + printf("%s[%d]: " format "\n", __func__, __LINE__, ##args); \ > +} while (0) > + > +/* configurable */ > +#define CONFIG_MTD_UBI_WL_THRESHOLD 4096 > +#define CONFIG_MTD_UBI_BEB_RESERVE 1 > +#define UBI_IO_DEBUG 0 > + > +/* #define CONFIG_MTD_UBI_DEBUG */ > +/* #define CONFIG_MTD_UBI_DEBUG_PARANOID */ > + > +#define CONFIG_MTD_UBI_DEBUG_DISABLE_BGT > +/* #define CONFIG_MTD_UBI_DEBUG_MSG */ > +/* #define CONFIG_MTD_UBI_DEBUG_MSG_EBA */ > +/* #define CONFIG_MTD_UBI_DEBUG_MSG_WL */ > +/* #define CONFIG_MTD_UBI_DEBUG_MSG_IO */ > +/* #define CONFIG_MTD_UBI_DEBUG_MSG_BLD */
These configs should be documented somewhere, e.g. in doc/README.ubi . Regards, Magnus _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
