From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753176AbaCYIV0 (ORCPT ); Tue, 25 Mar 2014 04:21:26 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:63463 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753021AbaCYIVX (ORCPT ); Tue, 25 Mar 2014 04:21:23 -0400 From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: lee.jones@linaro.org, kernel@stlinux.com, computersforpeace@gmail.com, linux-mtd@lists.infradead.org, dwmw2@infradead.org, angus.clark@st.com, pekon@ti.com Subject: [RFC 34/47] mtd: nand: stm_nand_bch: load flash-resident BBT Date: Tue, 25 Mar 2014 08:19:51 +0000 Message-Id: <1395735604-26706-35-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1395735604-26706-1-git-send-email-lee.jones@linaro.org> References: <1395735604-26706-1-git-send-email-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If load of existing BBT fails (first run), scan device for factory-set BBMs (Bad-Block Markers) and create a new flash-resident. Signed-off-by: Lee Jones --- drivers/mtd/nand/stm_nand_bch.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/mtd/nand/stm_nand_bch.c b/drivers/mtd/nand/stm_nand_bch.c index d1d84c1..6698b1f 100644 --- a/drivers/mtd/nand/stm_nand_bch.c +++ b/drivers/mtd/nand/stm_nand_bch.c @@ -1834,6 +1834,21 @@ static int stm_nand_bch_probe(struct platform_device *pdev) if (err) return err; + /* Load Flash-resident BBT */ + err = bch_load_bbt(nandi, bbt_info); + if (err) { + dev_warn(nandi->dev, + "failed to find BBTs:" + " scanning device for bad-block markers\n"); + + /* Scan, build, and write BBT */ + nandi_scan_build_bbt(nandi, bbt_info); + err = bch_update_bbts(nandi, bbt_info, NAND_IBBT_UPDATE_BOTH, + bbt_info->bbt_vers[0] + 1); + if (err) + return err; + } + return 0; } -- 1.8.3.2