diff options
Diffstat (limited to 'board/bf537-stamp/nand.c')
| -rw-r--r-- | board/bf537-stamp/nand.c | 43 | 
1 files changed, 19 insertions, 24 deletions
| diff --git a/board/bf537-stamp/nand.c b/board/bf537-stamp/nand.c index 6ff0f4f96..bdf1d6ee4 100644 --- a/board/bf537-stamp/nand.c +++ b/board/bf537-stamp/nand.c @@ -37,34 +37,29 @@  /*   * hardware specific access to control-lines   */ -static void bfin_hwcontrol(struct mtd_info *mtd, int cmd) +static void bfin_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)  {  	register struct nand_chip *this = mtd->priv; +    u32 IO_ADDR_W = (u32) this->IO_ADDR_W; -	switch (cmd) { - -	case NAND_CTL_SETCLE: -		this->IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_CLE; -		break; -	case NAND_CTL_CLRCLE: -		this->IO_ADDR_W = CFG_NAND_BASE; -		break; - -	case NAND_CTL_SETALE: -		this->IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_ALE; -		break; -	case NAND_CTL_CLRALE: -		this->IO_ADDR_W = CFG_NAND_BASE; -		break; -	case NAND_CTL_SETNCE: -	case NAND_CTL_CLRNCE: -		break; +	if (ctrl & NAND_CTRL_CHANGE) { +		if( ctrl & NAND_CLE ) +			IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_CLE; +		else +			IO_ADDR_W = CFG_NAND_BASE; +		if( ctrl & NAND_ALE ) +			IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_ALE; +		else +			IO_ADDR_W = CFG_NAND_BASE;			 +		this->IO_ADDR_W = (void __iomem *) IO_ADDR_W;  	} -  	this->IO_ADDR_R = this->IO_ADDR_W;  	/* Drain the writebuffer */  	SSYNC(); + +	if (cmd != NAND_CMD_NONE) +		writeb(cmd, this->IO_ADDR_W);	  }  int bfin_device_ready(struct mtd_info *mtd) @@ -79,11 +74,11 @@ int bfin_device_ready(struct mtd_info *mtd)   * argument are board-specific (per include/linux/mtd/nand.h):   * - IO_ADDR_R?: address to read the 8 I/O lines of the flash device   * - IO_ADDR_W?: address to write the 8 I/O lines of the flash device - * - hwcontrol: hardwarespecific function for accesing control-lines + * - cmd_ctrl: hardwarespecific function for accesing control-lines   * - dev_ready: hardwarespecific function for  accesing device ready/busy line   * - enable_hwecc?: function to enable (reset)  hardware ecc generator. Must   *   only be provided if a hardware ECC is available - * - eccmode: mode of ecc, see defines + * - ecc.mode: mode of ecc, see defines   * - chip_delay: chip dependent delay for transfering data from array to   *   read regs (tR)   * - options: various chip options. They can partly be set to inform @@ -98,8 +93,8 @@ void board_nand_init(struct nand_chip *nand)  	*PORT(CONFIG_NAND_GPIO_PORT, IO_DIR) &= ~BFIN_NAND_READY;  	*PORT(CONFIG_NAND_GPIO_PORT, IO_INEN) |= BFIN_NAND_READY; -	nand->hwcontrol = bfin_hwcontrol; -	nand->eccmode = NAND_ECC_SOFT; +	nand->cmd_ctrl = bfin_hwcontrol; +	nand->ecc.mode = NAND_ECC_SOFT;  	nand->dev_ready = bfin_device_ready;  	nand->chip_delay = 30;  } |