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authorRafał Miłecki <zajec5@gmail.com>2012-11-23 12:58:11 +0400
committerArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-12-03 18:36:52 +0400
commita6b3ed29ae3fd9853280d4f6a9275c43fb4e1c3b (patch)
treef03453eca34f16cd46665c8432884d6a0e42ce1a /drivers/mtd
parente7e46168bcc768fa31628d3d080ac9ee7b553b56 (diff)
downloadlinux-a6b3ed29ae3fd9853280d4f6a9275c43fb4e1c3b.tar.xz
mtd: bcm47xxnflash: support NAND_CMD_STATUS
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
index 672dc90aa5b1..ece343ccc1b0 100644
--- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
+++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
@@ -156,6 +156,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
{
struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+ struct bcma_drv_cc *cc = b47n->cc;
u32 ctlcode;
int i;
@@ -196,6 +197,11 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
}
break;
+ case NAND_CMD_STATUS:
+ ctlcode = NCTL_CSA | NCTL_CMD0 | NAND_CMD_STATUS;
+ if (bcm47xxnflash_ops_bcm4706_ctl_cmd(cc, ctlcode))
+ pr_err("STATUS command error\n");
+ break;
case NAND_CMD_READ0:
break;
case NAND_CMD_READOOB:
@@ -213,6 +219,7 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
{
struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+ struct bcma_drv_cc *cc = b47n->cc;
u32 tmp = 0;
switch (b47n->curr_command) {
@@ -223,6 +230,10 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
return 0;
}
return b47n->id_data[b47n->curr_column++];
+ case NAND_CMD_STATUS:
+ if (bcm47xxnflash_ops_bcm4706_ctl_cmd(cc, NCTL_READ))
+ return 0;
+ return bcma_cc_read32(cc, BCMA_CC_NFLASH_DATA) & 0xff;
case NAND_CMD_READOOB:
bcm47xxnflash_ops_bcm4706_read(mtd, (u8 *)&tmp, 4);
return tmp & 0xFF;