diff options
Diffstat (limited to 'drivers/mtd/nand/s3c2410.c')
-rw-r--r-- | drivers/mtd/nand/s3c2410.c | 64 |
1 files changed, 20 insertions, 44 deletions
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 608340a2527..215227d1a65 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -256,60 +256,36 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) * */ -static void s3c2410_nand_hwcontrol(struct mtd_info *mtd, int cmd) +static void s3c2410_nand_hwcontrol(struct mtd_info *mtd, int cmd, + unsigend int ctrl) { struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); struct nand_chip *chip = mtd->priv; - switch (cmd) { - case NAND_CTL_SETNCE: - case NAND_CTL_CLRNCE: - printk(KERN_ERR "%s: called for NCE\n", __FUNCTION__); - break; - - case NAND_CTL_SETCLE: - chip->IO_ADDR_W = info->regs + S3C2410_NFCMD; - break; - - case NAND_CTL_SETALE: - chip->IO_ADDR_W = info->regs + S3C2410_NFADDR; - break; - - /* NAND_CTL_CLRCLE: */ - /* NAND_CTL_CLRALE: */ - default: - chip->IO_ADDR_W = info->regs + S3C2410_NFDATA; - break; - } + if (cmd == NAND_CMD_NONE) + return; + + if (cmd & NAND_CLE) + writeb(cmd, info->regs + S3C2410_NFCMD); + else + writeb(cmd, info->regs + S3C2410_NFADDR); } /* command and control functions */ -static void s3c2440_nand_hwcontrol(struct mtd_info *mtd, int cmd) +static void s3c2410_nand_hwcontrol(struct mtd_info *mtd, int cmd, + unsigend int ctrl) { struct s3c2410_nand_info *info = s3c2410_nand_mtd_toinfo(mtd); struct nand_chip *chip = mtd->priv; - switch (cmd) { - case NAND_CTL_SETNCE: - case NAND_CTL_CLRNCE: - printk(KERN_ERR "%s: called for NCE\n", __FUNCTION__); - break; - - case NAND_CTL_SETCLE: - chip->IO_ADDR_W = info->regs + S3C2440_NFCMD; - break; - - case NAND_CTL_SETALE: - chip->IO_ADDR_W = info->regs + S3C2440_NFADDR; - break; - - /* NAND_CTL_CLRCLE: */ - /* NAND_CTL_CLRALE: */ - default: - chip->IO_ADDR_W = info->regs + S3C2440_NFDATA; - break; - } + if (cmd == NAND_CMD_NONE) + return; + + if (cmd & NAND_CLE) + writeb(cmd, info->regs + S3C2440_NFCMD); + else + writeb(cmd, info->regs + S3C2440_NFADDR); } /* s3c2410_nand_devready() @@ -498,7 +474,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, chip->IO_ADDR_R = info->regs + S3C2410_NFDATA; chip->IO_ADDR_W = info->regs + S3C2410_NFDATA; - chip->hwcontrol = s3c2410_nand_hwcontrol; + chip->cmd_ctrl = s3c2410_nand_hwcontrol; chip->dev_ready = s3c2410_nand_devready; chip->write_buf = s3c2410_nand_write_buf; chip->read_buf = s3c2410_nand_read_buf; @@ -511,7 +487,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, if (info->is_s3c2440) { chip->IO_ADDR_R = info->regs + S3C2440_NFDATA; chip->IO_ADDR_W = info->regs + S3C2440_NFDATA; - chip->hwcontrol = s3c2440_nand_hwcontrol; + chip->cmd_ctrl = s3c2440_nand_hwcontrol; } nmtd->info = info; |