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OpenCloudOS-Kernel
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[MTD] sharpsl-nand: cleanup partitions support 

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
This commit is contained in:
Dmitry Baryshkov 2008-10-16 18:22:28 +04:00
parent a4e4f29cbe
commit c176d0ca8b
1 changed files with 18 additions and 4 deletions
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22
drivers/mtd/nand/sharpsl.c
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@ -2,6 +2,7 @@
* drivers/mtd/nand/sharpsl.c
*
* Copyright (C) 2004 Richard Purdie
* Copyright (C) 2008 Dmitry Baryshkov
*
* Based on Sharp's NAND driver sharp_sl.c
*
@ -52,12 +53,12 @@ struct sharpsl_nand {
#define FLCLE (1 << 1)
#define FLCE0 (1 << 0)
#ifdef CONFIG_MTD_PARTITIONS
/*
* Define partitions for flash device
*/
#define DEFAULT_NUM_PARTITIONS 3
static int nr_partitions;
static struct mtd_partition sharpsl_nand_default_partition_info[] = {
{
.name = "System Area",
@ -75,6 +76,7 @@ static struct mtd_partition sharpsl_nand_default_partition_info[] = {
.size = MTDPART_SIZ_FULL,
},
};
#endif
/*
* hardware specific access to control-lines
@ -151,7 +153,7 @@ static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat,
}
#ifdef CONFIG_MTD_PARTITIONS
const char *part_probes[] = { "cmdlinepart", NULL };
static const char *part_probes[] = { "cmdlinepart", NULL };
#endif
/*
@ -160,7 +162,10 @@ const char *part_probes[] = { "cmdlinepart", NULL };
static int __devinit sharpsl_nand_probe(struct platform_device *pdev)
{
struct nand_chip *this;
#ifdef CONFIG_MTD_PARTITIONS
struct mtd_partition *sharpsl_partition_info;
int nr_partitions;
#endif
struct resource *r;
int err = 0;
struct sharpsl_nand *sharpsl;
@ -229,10 +234,11 @@ static int __devinit sharpsl_nand_probe(struct platform_device *pdev)
/* Register the partitions */
sharpsl->mtd.name = "sharpsl-nand";
#ifdef CONFIG_MTD_PARTITIONS
nr_partitions = parse_mtd_partitions(&sharpsl->mtd, part_probes, &sharpsl_partition_info, 0);
if (nr_partitions <= 0) {
nr_partitions = DEFAULT_NUM_PARTITIONS;
nr_partitions = ARRAY_SIZE(sharpsl_nand_default_partition_info);
sharpsl_partition_info = sharpsl_nand_default_partition_info;
if (machine_is_poodle()) {
sharpsl_partition_info[1].size = 22 * 1024 * 1024;
@ -249,11 +255,19 @@ static int __devinit sharpsl_nand_probe(struct platform_device *pdev)
}
}
add_mtd_partitions(&sharpsl->mtd, sharpsl_partition_info, nr_partitions);
err = add_mtd_partitions(&sharpsl->mtd, sharpsl_partition_info, nr_partitions);
#else
err = add_mtd_device(&sharpsl->mtd);
#endif
if (err)
goto err_add;
/* Return happy */
return 0;
err_add:
nand_release(&sharpsl->mtd);
err_scan:
platform_set_drvdata(pdev, NULL);
iounmap(sharpsl->io);