diff options
| author | Wolfgang Denk <wd@pollux.(none)> | 2005-11-02 14:29:12 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@pollux.(none)> | 2005-11-02 14:29:12 +0100 |
| commit | 8e9655f863246db60c51140153186acc2afdc855 (patch) | |
| tree | 5bf681d78aaac91aac3ddaeef4972752cba33816 | |
| parent | ac7eb8a315e25863637a8d2c02af18815458b63f (diff) | |
* Add hook to NAND erase and implement nand_wait function.
Patch by Mike Rapoport, 01 Nov 2005
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
| -rw-r--r-- | common/Makefile | 2 | ||||
| -rw-r--r-- | drivers/nand/nand_base.c | 36 | ||||
| -rw-r--r-- | include/nand.h | 9 |
3 files changed, 42 insertions, 5 deletions
diff --git a/common/Makefile b/common/Makefile index 209e17d816f..9bfc11ab50b 100644 --- a/common/Makefile +++ b/common/Makefile @@ -37,7 +37,7 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o \ cmd_i2c.o cmd_ide.o cmd_immap.o cmd_itest.o cmd_jffs2.o \ cmd_load.o cmd_log.o \ cmd_mem.o cmd_mii.o cmd_misc.o cmd_mmc.o \ - cmd_nand.o cmd_net.o cmd_nvedit.o \ + cmd_nand.o cmd_nand_new.o cmd_net.o cmd_nvedit.o \ cmd_pci.o cmd_pcmcia.o cmd_portio.o \ cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o cmd_usb.o cmd_vfd.o \ command.o console.o devices.o dlmalloc.o docecc.o \ diff --git a/drivers/nand/nand_base.c b/drivers/nand/nand_base.c index a7ab8c27adc..9ec5af9d714 100644 --- a/drivers/nand/nand_base.c +++ b/drivers/nand/nand_base.c @@ -189,7 +189,11 @@ static void nand_release_device (struct mtd_info *mtd) spin_unlock (&this->chip_lock); } #else -#define nand_release_device(mtd) do {} while(0) +static void nand_release_device (struct mtd_info *mtd) +{ + struct nand_chip *this = mtd->priv; + this->select_chip(mtd, -1); /* De-select the NAND device */ +} #endif /** @@ -831,8 +835,34 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state) #else static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state) { - /* TODO */ - return 0; + unsigned long timeo; + + if (state == FL_ERASING) + timeo = CFG_HZ * 400; + else + timeo = CFG_HZ * 20; + + if ((state == FL_ERASING) && (this->options & NAND_IS_AND)) + this->cmdfunc(mtd, NAND_CMD_STATUS_MULTI, -1, -1); + else + this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1); + + reset_timer_masked(); + + while (1) { + if (get_timer_masked() > timeo) + return 0; + + if (this->dev_ready) { + if (this->dev_ready(mtd)) + break; + } else { + if (this->read_byte(mtd) & NAND_STATUS_READY) + break; + } + } + + return this->read_byte(mtd); } #endif diff --git a/include/nand.h b/include/nand.h index 6dbaa424027..34903477237 100644 --- a/include/nand.h +++ b/include/nand.h @@ -50,7 +50,14 @@ static inline int nand_block_isbad(nand_info_t *info, ulong ofs) static inline int nand_erase(nand_info_t *info, ulong off, ulong size) { - return 0; /* FIXME */ + struct erase_info instr; + + instr.mtd = info; + instr.addr = off; + instr.len = size; + instr.callback = 0; + + return info->erase(info, &instr); } #endif |