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| author | Bastian Hecht <hechtb@googlemail.com> | 2012-03-01 10:48:38 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 00:42:51 +0100 |
| commit | dd5ab248329edab4b16b70e4d9920f162d181d90 (patch) | |
| tree | f517c5b835c4418080139729f782255be371bc92 /drivers/mtd | |
| parent | 7b6b23036b43a418198be9468d4dc4c9ea79c2e8 (diff) | |
| download | linux-dd5ab248329edab4b16b70e4d9920f162d181d90.tar.gz linux-dd5ab248329edab4b16b70e4d9920f162d181d90.tar.bz2 linux-dd5ab248329edab4b16b70e4d9920f162d181d90.zip | |
mtd: sh_flctl: Implement NAND_CMD_RNDOUT command
Implements the command to seek and read in pages.
Signed-off-by: Bastian Hecht <hechtb@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/sh_flctl.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index 407acb51469c..61e41c065db8 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -303,6 +303,7 @@ static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_va break; case NAND_CMD_READ0: case NAND_CMD_READOOB: + case NAND_CMD_RNDOUT: addr_len_bytes = flctl->rw_ADRCNT; flcmdcr_val |= CDSRC_E; if (flctl->chip.options & NAND_BUSWIDTH_16) @@ -558,6 +559,21 @@ static void flctl_cmdfunc(struct mtd_info *mtd, unsigned int command, flctl->read_bytes = mtd->oobsize; goto read_normal_exit; + case NAND_CMD_RNDOUT: + if (flctl->hwecc) + break; + + if (flctl->page_size) + set_cmd_regs(mtd, command, (NAND_CMD_RNDOUTSTART << 8) + | command); + else + set_cmd_regs(mtd, command, command); + + set_addr(mtd, column, 0); + + flctl->read_bytes = mtd->writesize + mtd->oobsize - column; + goto read_normal_exit; + case NAND_CMD_READID: set_cmd_regs(mtd, command, command); |