[U-Boot] [U-BOOT] nand merge problem

[Scott Wood]

xiangfu_gmail wrote:
> static void jz_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
> {
> 	struct nand_chip *this = (struct nand_chip *)(mtd->priv);
> 
> 	if (ctrl & NAND_CTRL_CHANGE) {
> 		if (ctrl & NAND_NCE)
> 			REG_EMC_NFCSR |= EMC_NFCSR_NFCE1;
> 		else
> 			REG_EMC_NFCSR &= ~EMC_NFCSR_NFCE1;
> 
> 		if (ctrl & NAND_CLE)
> 			this->IO_ADDR_W = (void __iomem *)
> 		((unsigned long)(this->IO_ADDR_W) | 0x00008000);
> 		else			
> 			this->IO_ADDR_W = (void __iomem *)
> 		((unsigned long)(this->IO_ADDR_W) & ~0x00008000);
> 
> 		if (ctrl & NAND_ALE)
> 			this->IO_ADDR_W = (void __iomem *)
> 		((unsigned long)(this->IO_ADDR_W) | 0x00010000);
> 		else
> 			this->IO_ADDR_W = (void __iomem *)
> 		((unsigned long)(this->IO_ADDR_W) & ~0x00010000);
> 
> 	}
> }

Nowhere in this function do you issue the command...  See 
cpu/ppc4xx/ndfc.c for a simple hwcontrol function.

-Scott