diff options
Diffstat (limited to 'qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif.c')
| -rw-r--r-- | qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif.c b/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif.c deleted file mode 100644 index 6fcba047f..000000000 --- a/qemu/roms/u-boot/fs/yaffs2/yaffs_mtdif.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * 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. - */ - -/* XXX U-BOOT XXX */ -#include <common.h> - -#include "yportenv.h" - - -#include "yaffs_mtdif.h" - -#include "linux/mtd/mtd.h" -#include "linux/types.h" -#include "linux/time.h" -#include "linux/mtd/nand.h" - - -static inline void translate_spare2oob(const struct yaffs_spare *spare, u8 *oob) -{ - oob[0] = spare->tb0; - oob[1] = spare->tb1; - oob[2] = spare->tb2; - oob[3] = spare->tb3; - oob[4] = spare->tb4; - oob[5] = spare->tb5 & 0x3f; - oob[5] |= spare->block_status == 'Y' ? 0 : 0x80; - oob[5] |= spare->page_status == 0 ? 0 : 0x40; - oob[6] = spare->tb6; - oob[7] = spare->tb7; -} - -static inline void translate_oob2spare(struct yaffs_spare *spare, u8 *oob) -{ - struct yaffs_nand_spare *nspare = (struct yaffs_nand_spare *)spare; - spare->tb0 = oob[0]; - spare->tb1 = oob[1]; - spare->tb2 = oob[2]; - spare->tb3 = oob[3]; - spare->tb4 = oob[4]; - spare->tb5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f; - spare->block_status = oob[5] & 0x80 ? 0xff : 'Y'; - spare->page_status = oob[5] & 0x40 ? 0xff : 0; - spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff; - spare->tb6 = oob[6]; - spare->tb7 = oob[7]; - spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff; - - nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */ -} - - -int nandmtd_WriteChunkToNAND(struct yaffs_dev *dev, int chunkInNAND, - const u8 *data, const struct yaffs_spare *spare) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context); - struct mtd_oob_ops ops; - size_t dummy; - int retval = 0; - loff_t addr = ((loff_t) chunkInNAND) * dev->data_bytes_per_chunk; - u8 spareAsBytes[8]; /* OOB */ - - if (data && !spare) - retval = mtd_write(mtd, addr, dev->data_bytes_per_chunk, - &dummy, data); - else if (spare) { - if (dev->param.use_nand_ecc) { - translate_spare2oob(spare, spareAsBytes); - ops.mode = MTD_OPS_AUTO_OOB; - ops.ooblen = 8; /* temp hack */ - } else { - ops.mode = MTD_OPS_RAW; - ops.ooblen = YAFFS_BYTES_PER_SPARE; - } - ops.len = data ? dev->data_bytes_per_chunk : ops.ooblen; - ops.datbuf = (u8 *)data; - ops.ooboffs = 0; - ops.oobbuf = spareAsBytes; - retval = mtd_write_oob(mtd, addr, &ops); - } - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd_ReadChunkFromNAND(struct yaffs_dev *dev, int chunkInNAND, u8 *data, - struct yaffs_spare *spare) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context); - struct mtd_oob_ops ops; - size_t dummy; - int retval = 0; - - loff_t addr = ((loff_t) chunkInNAND) * dev->data_bytes_per_chunk; - u8 spareAsBytes[8]; /* OOB */ - - if (data && !spare) - retval = mtd_read(mtd, addr, dev->data_bytes_per_chunk, - &dummy, data); - else if (spare) { - if (dev->param.use_nand_ecc) { - ops.mode = MTD_OPS_AUTO_OOB; - ops.ooblen = 8; /* temp hack */ - } else { - ops.mode = MTD_OPS_RAW; - ops.ooblen = YAFFS_BYTES_PER_SPARE; - } - ops.len = data ? dev->data_bytes_per_chunk : ops.ooblen; - ops.datbuf = data; - ops.ooboffs = 0; - ops.oobbuf = spareAsBytes; - retval = mtd_read_oob(mtd, addr, &ops); - if (dev->param.use_nand_ecc) - translate_oob2spare(spare, spareAsBytes); - } - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->driver_context); - __u32 addr = - ((loff_t) blockNumber) * dev->data_bytes_per_chunk - * dev->param.chunks_per_block; - struct erase_info ei; - int retval = 0; - - ei.mtd = mtd; - ei.addr = addr; - ei.len = dev->data_bytes_per_chunk * dev->param.chunks_per_block; - ei.time = 1000; - ei.retries = 2; - ei.callback = NULL; - ei.priv = (u_long) dev; - - /* Todo finish off the ei if required */ - - - retval = mtd_erase(mtd, &ei); - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd_InitialiseNAND(struct yaffs_dev *dev) -{ - return YAFFS_OK; -} |