diff options
Diffstat (limited to 'drivers/mtd/nand/sharpsl.c')
-rw-r--r-- | drivers/mtd/nand/sharpsl.c | 93 |
1 files changed, 42 insertions, 51 deletions
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index c294374871a4..25322a8d44d8 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -46,7 +46,6 @@ static int sharpsl_phys_base = 0x0C000000; #define FLCLE (1 << 1) #define FLCE0 (1 << 0) - /* * MTD structure for SharpSL */ @@ -60,27 +59,26 @@ static struct mtd_info *sharpsl_mtd = NULL; static int nr_partitions; static struct mtd_partition sharpsl_nand_default_partition_info[] = { { - .name = "System Area", - .offset = 0, - .size = 7 * 1024 * 1024, - }, + .name = "System Area", + .offset = 0, + .size = 7 * 1024 * 1024, + }, { - .name = "Root Filesystem", - .offset = 7 * 1024 * 1024, - .size = 30 * 1024 * 1024, - }, + .name = "Root Filesystem", + .offset = 7 * 1024 * 1024, + .size = 30 * 1024 * 1024, + }, { - .name = "Home Filesystem", - .offset = MTDPART_OFS_APPEND , - .size = MTDPART_SIZ_FULL , - }, + .name = "Home Filesystem", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, }; /* * hardware specific access to control-lines */ -static void -sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd) +static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd) { switch (cmd) { case NAND_CTL_SETCLE: @@ -98,10 +96,10 @@ sharpsl_nand_hwcontrol(struct mtd_info* mtd, int cmd) break; case NAND_CTL_SETNCE: - writeb(readb(FLASHCTL) & ~(FLCE0|FLCE1), FLASHCTL); + writeb(readb(FLASHCTL) & ~(FLCE0 | FLCE1), FLASHCTL); break; case NAND_CTL_CLRNCE: - writeb(readb(FLASHCTL) | (FLCE0|FLCE1), FLASHCTL); + writeb(readb(FLASHCTL) | (FLCE0 | FLCE1), FLASHCTL); break; } } @@ -126,27 +124,23 @@ 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} } + 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) +static int sharpsl_nand_dev_ready(struct mtd_info *mtd) { return !((readb(FLASHCTL) & FLRYBY) == 0); } -static void -sharpsl_nand_enable_hwecc(struct mtd_info* mtd, int mode) +static void sharpsl_nand_enable_hwecc(struct mtd_info *mtd, int mode) { - writeb(0 ,ECCCLRR); + writeb(0, ECCCLRR); } -static int -sharpsl_nand_calculate_ecc(struct mtd_info* mtd, const u_char* dat, - u_char* ecc_code) +static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat, u_char * ecc_code) { ecc_code[0] = ~readb(ECCLPUB); ecc_code[1] = ~readb(ECCLPLB); @@ -154,44 +148,40 @@ sharpsl_nand_calculate_ecc(struct mtd_info* mtd, const u_char* dat, return readb(ECCCNTR) != 0; } - #ifdef CONFIG_MTD_PARTITIONS const char *part_probes[] = { "cmdlinepart", NULL }; #endif - /* * Main initialization routine */ -int __init -sharpsl_nand_init(void) +int __init sharpsl_nand_init(void) { struct nand_chip *this; - struct mtd_partition* sharpsl_partition_info; + struct mtd_partition *sharpsl_partition_info; int err = 0; /* Allocate memory for MTD device structure and private data */ - sharpsl_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), - GFP_KERNEL); + sharpsl_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL); if (!sharpsl_mtd) { - printk ("Unable to allocate SharpSL NAND MTD device structure.\n"); + 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){ + if (!sharpsl_io_base) { printk("ioremap to access Sharp SL NAND chip failed\n"); kfree(sharpsl_mtd); return -EIO; } /* Get pointer to private data */ - this = (struct nand_chip *) (&sharpsl_mtd[1]); + this = (struct nand_chip *)(&sharpsl_mtd[1]); /* Initialize structures */ - memset((char *) sharpsl_mtd, 0, sizeof(struct mtd_info)); - memset((char *) this, 0, sizeof(struct nand_chip)); + memset(sharpsl_mtd, 0, sizeof(struct mtd_info)); + memset(this, 0, sizeof(struct nand_chip)); /* Link the private data with the MTD structure */ sharpsl_mtd->priv = this; @@ -221,7 +211,7 @@ sharpsl_nand_init(void) this->correct_data = nand_correct_data; /* Scan to find existence of the device */ - err=nand_scan(sharpsl_mtd,1); + err = nand_scan(sharpsl_mtd, 1); if (err) { iounmap(sharpsl_io_base); kfree(sharpsl_mtd); @@ -230,24 +220,23 @@ sharpsl_nand_init(void) /* Register the partitions */ sharpsl_mtd->name = "sharpsl-nand"; - nr_partitions = parse_mtd_partitions(sharpsl_mtd, part_probes, - &sharpsl_partition_info, 0); + 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; if (machine_is_poodle()) { - sharpsl_partition_info[1].size=22 * 1024 * 1024; + sharpsl_partition_info[1].size = 22 * 1024 * 1024; } else if (machine_is_corgi() || machine_is_shepherd()) { - sharpsl_partition_info[1].size=25 * 1024 * 1024; + sharpsl_partition_info[1].size = 25 * 1024 * 1024; } else if (machine_is_husky()) { - sharpsl_partition_info[1].size=53 * 1024 * 1024; + sharpsl_partition_info[1].size = 53 * 1024 * 1024; } else if (machine_is_spitz()) { - sharpsl_partition_info[1].size=5 * 1024 * 1024; + sharpsl_partition_info[1].size = 5 * 1024 * 1024; } else if (machine_is_akita()) { - sharpsl_partition_info[1].size=58 * 1024 * 1024; + sharpsl_partition_info[1].size = 58 * 1024 * 1024; } else if (machine_is_borzoi()) { - sharpsl_partition_info[1].size=32 * 1024 * 1024; + sharpsl_partition_info[1].size = 32 * 1024 * 1024; } } @@ -261,6 +250,7 @@ sharpsl_nand_init(void) /* Return happy */ return 0; } + module_init(sharpsl_nand_init); /* @@ -269,7 +259,7 @@ module_init(sharpsl_nand_init); #ifdef MODULE static void __exit sharpsl_nand_cleanup(void) { - struct nand_chip *this = (struct nand_chip *) &sharpsl_mtd[1]; + struct nand_chip *this = (struct nand_chip *)&sharpsl_mtd[1]; /* Release resources, unregister device */ nand_release(sharpsl_mtd); @@ -279,6 +269,7 @@ static void __exit sharpsl_nand_cleanup(void) /* Free the MTD device structure */ kfree(sharpsl_mtd); } + module_exit(sharpsl_nand_cleanup); #endif |