From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from DB3EHSOBE002.bigfish.com (db3ehsobe002.messaging.microsoft.com [213.199.154.140]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id BF7071007D6 for ; Mon, 5 Dec 2011 22:29:05 +1100 (EST) From: Shengzhou Liu To: Subject: [PATCH 2/2] mtd/nand: Add ONFI support for FSL NAND controller Date: Mon, 5 Dec 2011 18:54:53 +0800 Message-ID: <1323082493-22617-2-git-send-email-Shengzhou.Liu@freescale.com> In-Reply-To: <1323082493-22617-1-git-send-email-Shengzhou.Liu@freescale.com> References: <1323082493-22617-1-git-send-email-Shengzhou.Liu@freescale.com> MIME-Version: 1.0 Content-Type: text/plain Cc: scottwood@freescale.com, dwmw2@infradead.org, kumar.gala@freescale.com, linux-mtd@lists.infradead.org, Shengzhou Liu List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , - fix NAND_CMD_READID command for ONFI detect. - add NAND_CMD_PARAM command to read the ONFI parameter page. Signed-off-by: Shengzhou Liu --- drivers/mtd/nand/fsl_elbc_nand.c | 19 ++++++++++++------- 1 files changed, 12 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 742bf73..08a3aba 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -349,19 +349,24 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command, fsl_elbc_run_command(mtd); return; - /* READID must read all 5 possible bytes while CEB is active */ case NAND_CMD_READID: - dev_vdbg(priv->dev, "fsl_elbc_cmdfunc: NAND_CMD_READID.\n"); + case NAND_CMD_PARAM: + dev_vdbg(priv->dev, "fsl_elbc_cmdfunc: NAND_CMD %x\n", command); out_be32(&lbc->fir, (FIR_OP_CM0 << FIR_OP0_SHIFT) | (FIR_OP_UA << FIR_OP1_SHIFT) | (FIR_OP_RBW << FIR_OP2_SHIFT)); - out_be32(&lbc->fcr, NAND_CMD_READID << FCR_CMD0_SHIFT); - /* nand_get_flash_type() reads 8 bytes of entire ID string */ - out_be32(&lbc->fbcr, 8); - elbc_fcm_ctrl->read_bytes = 8; + out_be32(&lbc->fcr, command << FCR_CMD0_SHIFT); + /* reads 8 bytes of entire ID string */ + if (NAND_CMD_READID == command) { + out_be32(&lbc->fbcr, 8); + elbc_fcm_ctrl->read_bytes = 8; + } else { + out_be32(&lbc->fbcr, 256); + elbc_fcm_ctrl->read_bytes = 256; + } elbc_fcm_ctrl->use_mdr = 1; - elbc_fcm_ctrl->mdr = 0; + elbc_fcm_ctrl->mdr = column; set_addr(mtd, 0, 0, 0); fsl_elbc_run_command(mtd); -- 1.6.4