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| author | Vladimir Zapolskiy <vz@mleia.com> | 2015-07-18 01:47:08 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-08-12 20:47:33 -0400 |
| commit | 8d1809a966996fdbcddb441c0ff8080d78a89c59 (patch) | |
| tree | cdf62b4038987648e80ad6622c7c6961550039ff /drivers/mtd | |
| parent | 2dd46328fdc50284311908dfb1ca3d5ec1ddcb6e (diff) | |
| download | talos-obmc-uboot-8d1809a966996fdbcddb441c0ff8080d78a89c59.tar.gz talos-obmc-uboot-8d1809a966996fdbcddb441c0ff8080d78a89c59.zip | |
spl: nand: simple: replace readb() with chip specific read_buf()
Some NAND controllers define custom functions to read data out,
respect this in order to correctly support bad block handling in
simple SPL NAND framework.
NAND controller specific read_buf() is used even to read 1 byte in
case of connected 8-bit NAND device, it turns out that read_byte()
may become outdated.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Tom Warren <twarren@nvidia.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/nand_spl_simple.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/mtd/nand/nand_spl_simple.c b/drivers/mtd/nand/nand_spl_simple.c index 700ca324e2..e69f66226d 100644 --- a/drivers/mtd/nand/nand_spl_simple.c +++ b/drivers/mtd/nand/nand_spl_simple.c @@ -115,6 +115,7 @@ static int nand_command(int block, int page, uint32_t offs, static int nand_is_bad_block(int block) { struct nand_chip *this = mtd.priv; + u_char bb_data[2]; nand_command(block, 0, CONFIG_SYS_NAND_BAD_BLOCK_POS, NAND_CMD_READOOB); @@ -123,10 +124,12 @@ static int nand_is_bad_block(int block) * Read one byte (or two if it's a 16 bit chip). */ if (this->options & NAND_BUSWIDTH_16) { - if (readw(this->IO_ADDR_R) != 0xffff) + this->read_buf(&mtd, bb_data, 2); + if (bb_data[0] != 0xff || bb_data[1] != 0xff) return 1; } else { - if (readb(this->IO_ADDR_R) != 0xff) + this->read_buf(&mtd, bb_data, 1); + if (bb_data[0] != 0xff) return 1; } |
