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

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