From mboxrd@z Thu Jan 1 00:00:00 1970 From: xiangfu_gmail Date: Wed, 27 May 2009 08:41:33 +0800 Subject: [U-Boot] [U-BOOT] nand merge problem In-Reply-To: <20090526211706.GB4669@b07421-ec1.am.freescale.net> References: <4A1B9E53.20406@gmail.com> <4A1BB261.7080808@gmail.com> <20090526211706.GB4669@b07421-ec1.am.freescale.net> Message-ID: <4A1C8C3D.6000108@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Scott thanks for the reply Scott Wood wrote: > On Tue, May 26, 2009 at 05:12:01PM +0800, xiangfu_gmail wrote: >> 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(......) >> { ...... >> } >> 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? > > It would be helpful if you were to post the entire hwcontrol, so we can > see what's hiding behind those "......"s. here is the entire hwontrol 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); } } > > Posting the original legacy NAND defines for this board would be helpful > as well. I don't know which code should I post. so I post the git URL: http://github.com/xiangfu/pi-u-boot/tree/xiangfu > > -Scott thanks -- Best Regards Xiangfu Liu jabber : xiangfu.z at gmail.com skype : xiangfu.z