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

[xiangfu_gmail <xiangfu.z@gmail.com>]

xiangfu_gmail wrote:
> Hi
> I have try to merge Ingenic U-boot (1.1.6) with upstream.
> but I have some problem
Hi I rewrite the jz_hwcontrol to :
--
static void jz_hwcontrol(......)
{	......
	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)
		......
	}
}
and
" nand->cmd_ctrl =  jz_hwcontrol; " in board_nand_init

but it's still not work:
the error message:
--
NAND:  nand_get_flash_type: second ID read did not match ff,ff against
00,00
No NAND device found!!!

0 MiB
--

what can cause this problem?

thanks