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mtd: bcm47xxnflash: support NAND_CMD_STATUS

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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Rafał Miłecki 2012-11-23 09:58:11 +01:00 committed by Artem Bityutskiy
parent e7e46168bc
commit a6b3ed29ae
1 changed files with 11 additions and 0 deletions
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11
drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
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@ -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 nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
struct bcma_drv_cc *cc = b47n->cc;
u32 ctlcode; u32 ctlcode;
int i; int i;
@ -196,6 +197,11 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd,
} }
break; 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: case NAND_CMD_READ0:
break; break;
case NAND_CMD_READOOB: 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 nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
struct bcma_drv_cc *cc = b47n->cc;
u32 tmp = 0; u32 tmp = 0;
switch (b47n->curr_command) { switch (b47n->curr_command) {
@ -223,6 +230,10 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd)
return 0; return 0;
} }
return b47n->id_data[b47n->curr_column++]; 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: case NAND_CMD_READOOB:
bcm47xxnflash_ops_bcm4706_read(mtd, (u8 *)&tmp, 4); bcm47xxnflash_ops_bcm4706_read(mtd, (u8 *)&tmp, 4);
return tmp & 0xFF; return tmp & 0xFF;