diff options
Diffstat (limited to 'drivers/mtd/nand/sharpsl.c')
| -rw-r--r-- | drivers/mtd/nand/sharpsl.c | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 88b5b5b40b4..1924a4f137c 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -3,7 +3,7 @@ * * Copyright (C) 2004 Richard Purdie * - * $Id: sharpsl.c,v 1.4 2005/01/23 11:09:19 rpurdie Exp $ + * $Id: sharpsl.c,v 1.7 2005/11/07 11:14:31 gleixner Exp $ * * Based on Sharp's NAND driver sharp_sl.c * @@ -76,14 +76,14 @@ static struct mtd_partition sharpsl_nand_default_partition_info[] = { }, }; -/* +/* * hardware specific access to control-lines */ static void sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd) { switch (cmd) { - case NAND_CTL_SETCLE: + case NAND_CTL_SETCLE: writeb(readb(FLASHCTL) | FLCLE, FLASHCTL); break; case NAND_CTL_CLRCLE: @@ -97,10 +97,10 @@ sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd) writeb(readb(FLASHCTL) & ~FLALE, FLASHCTL); break; - case NAND_CTL_SETNCE: + case NAND_CTL_SETNCE: writeb(readb(FLASHCTL) & ~(FLCE0|FLCE1), FLASHCTL); break; - case NAND_CTL_CLRNCE: + case NAND_CTL_CLRNCE: writeb(readb(FLASHCTL) | (FLCE0|FLCE1), FLASHCTL); break; } @@ -115,6 +115,23 @@ static struct nand_bbt_descr sharpsl_bbt = { .pattern = scan_ff_pattern }; +static struct nand_bbt_descr sharpsl_akita_bbt = { + .options = 0, + .offs = 4, + .len = 1, + .pattern = scan_ff_pattern +}; + +static struct nand_oobinfo akita_oobinfo = { + .useecc = MTD_NANDECC_AUTOPLACE, + .eccbytes = 24, + .eccpos = { + 0x5, 0x1, 0x2, 0x3, 0x6, 0x7, 0x15, 0x11, + 0x12, 0x13, 0x16, 0x17, 0x25, 0x21, 0x22, 0x23, + 0x26, 0x27, 0x35, 0x31, 0x32, 0x33, 0x36, 0x37}, + .oobfree = { {0x08, 0x09} } +}; + static int sharpsl_nand_dev_ready(struct mtd_info* mtd) { @@ -160,7 +177,7 @@ sharpsl_nand_init(void) printk ("Unable to allocate SharpSL NAND MTD device structure.\n"); return -ENOMEM; } - + /* map physical adress */ sharpsl_io_base = ioremap(sharpsl_phys_base, 0x1000); if(!sharpsl_io_base){ @@ -168,7 +185,7 @@ sharpsl_nand_init(void) kfree(sharpsl_mtd); return -EIO; } - + /* Get pointer to private data */ this = (struct nand_chip *) (&sharpsl_mtd[1]); @@ -194,10 +211,14 @@ sharpsl_nand_init(void) this->chip_delay = 15; /* set eccmode using hardware ECC */ this->eccmode = NAND_ECC_HW3_256; + this->badblock_pattern = &sharpsl_bbt; + if (machine_is_akita() || machine_is_borzoi()) { + this->badblock_pattern = &sharpsl_akita_bbt; + this->autooob = &akita_oobinfo; + } this->enable_hwecc = sharpsl_nand_enable_hwecc; this->calculate_ecc = sharpsl_nand_calculate_ecc; this->correct_data = nand_correct_data; - this->badblock_pattern = &sharpsl_bbt; /* Scan to find existence of the device */ err=nand_scan(sharpsl_mtd,1); @@ -211,7 +232,7 @@ sharpsl_nand_init(void) sharpsl_mtd->name = "sharpsl-nand"; nr_partitions = parse_mtd_partitions(sharpsl_mtd, part_probes, &sharpsl_partition_info, 0); - + if (nr_partitions <= 0) { nr_partitions = DEFAULT_NUM_PARTITIONS; sharpsl_partition_info = sharpsl_nand_default_partition_info; @@ -230,7 +251,7 @@ sharpsl_nand_init(void) } } - if (machine_is_husky() || machine_is_borzoi()) { + if (machine_is_husky() || machine_is_borzoi() || machine_is_akita()) { /* Need to use small eraseblock size for backward compatibility */ sharpsl_mtd->flags |= MTD_NO_VIRTBLOCKS; } |