diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2013-02-27 15:24:50 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-03-09 20:15:57 +0100 |
| commit | c3ccb2c3b1d94a7a0cf1fe4d289f7958000ba538 (patch) | |
| tree | 5d87af08f4bcba32ff76b5c1acb693a46dfab018 /drivers/mtd/nand/nand_base.c | |
| parent | 57a5fbd1a34870607dbd90b99e981c0ca23f1640 (diff) | |
| download | barebox-c3ccb2c3b1d94a7a0cf1fe4d289f7958000ba538.tar.gz barebox-c3ccb2c3b1d94a7a0cf1fe4d289f7958000ba538.tar.xz | |
mtd: nand: Add bbt parameter
The information which kind of bbt (if any) is used is hidden somewhere
in the NAND layer. Expose it to a device parameter to make it detectable
and visible during runtime.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/mtd/nand/nand_base.c')
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ac223ca45a..fa10d9581e 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1688,6 +1688,23 @@ static int mtd_set_erasebad(struct device_d *dev, struct param_d *param, return 0; } +static const char *mtd_get_bbt_type(struct device_d *dev, struct param_d *p) +{ + struct mtd_info *mtd = container_of(dev, struct mtd_info, class_dev); + struct nand_chip *chip = mtd->priv; + const char *str; + + if (!chip->bbt) + str = "none"; + else if ((chip->bbt_td && chip->bbt_td->pages[0] != -1) || + (chip->bbt_md && chip->bbt_md->pages[0] != -1)) + str = "flashbased"; + else + str = "memorybased"; + + return str; +} + int add_mtd_nand_device(struct mtd_info *mtd, char *devname) { int ret; @@ -1700,6 +1717,8 @@ int add_mtd_nand_device(struct mtd_info *mtd, char *devname) dev_add_param(&mtd->class_dev, "erasebad", mtd_set_erasebad, NULL, 0); + dev_add_param(&mtd->class_dev, "bbt", NULL, mtd_get_bbt_type, 0); + return ret; } |