From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A3777C433FE for ; Wed, 19 Oct 2022 07:17:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=w0QLuaPQ/kqfKN98mPT9n8/9aGB7c6zPEKK5DWem6wE=; b=TNwbb3pm+tY+p2 pVi71VNCKqdtQqO2pETTE3WicH16scjriSgHb/mEZp6LPAhiSVzSH3bVpI3j0l4vKHfHWPJr3ZACU cJjSlvdNkkW0/Cw3EVHl+IHtBmhryMyPRW0QKCyQdG25HciVlca1vhnqnl4amCN5zbrKnU2lAOgKy K7PmChmqnC1UUPaUDXkgxGS5mVkok+PIqKrGuo1hmfsBumVMysJnDa2EYqV9lnmjsahFHr8XSMTZv kFYDzUIPASpS0+42kKCzQ7nt9qd6w+kvYGhGGfQ94QPizg9JNuJ8Hl7JEzqzROa2ifkpKKsaJov3K mMU7azXyL8f1CAed90Dg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ol3Jt-00G6PV-Sy; Wed, 19 Oct 2022 07:16:53 +0000 Received: from smtp-fw-2101.amazon.com ([72.21.196.25]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ol3Jq-00G6LT-In for linux-mtd@lists.infradead.org; Wed, 19 Oct 2022 07:16:52 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1666163811; x=1697699811; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=idRMXOV7LEiNt8pIiLFFF8p2b7BGPUnm0JzpG6j/u38=; b=KXcaqxxm1TIayAPho0ZLvIbPKXflYYpzBp/zUDhvFszPpKqUnoZ1Vjae VTPz+nXeW/GOmWU5epD2Vh3LOcWgJotBd8x0+/HAfX5c8P1S/TvOAUJal p5+pzFs/+d24oO8qNmPoVn/F5XO6IEagn05Ito78greWRscKgYnwvpHAF 8=; X-IronPort-AV: E=Sophos;i="5.95,195,1661817600"; d="scan'208";a="253551215" Received: from iad12-co-svc-p1-lb1-vlan3.amazon.com (HELO email-inbound-relay-pdx-2b-d803d33a.us-west-2.amazon.com) ([10.43.8.6]) by smtp-border-fw-2101.iad2.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Oct 2022 07:16:38 +0000 Received: from EX13MTAUWB001.ant.amazon.com (pdx1-ws-svc-p6-lb9-vlan3.pdx.amazon.com [10.236.137.198]) by email-inbound-relay-pdx-2b-d803d33a.us-west-2.amazon.com (Postfix) with ESMTPS id 9013A817ED; Wed, 19 Oct 2022 07:16:37 +0000 (UTC) Received: from EX19D013UWA002.ant.amazon.com (10.13.138.210) by EX13MTAUWB001.ant.amazon.com (10.43.161.207) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Wed, 19 Oct 2022 07:16:33 +0000 Received: from EX13MTAUEB002.ant.amazon.com (10.43.60.12) by EX19D013UWA002.ant.amazon.com (10.13.138.210) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.1118.15; Wed, 19 Oct 2022 07:16:33 +0000 Received: from dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (172.19.116.181) by mail-relay.amazon.com (10.43.60.234) with Microsoft SMTP Server id 15.0.1497.42 via Frontend Transport; Wed, 19 Oct 2022 07:16:32 +0000 Received: by dev-dsk-farbere-1a-46ecabed.eu-west-1.amazon.com (Postfix, from userid 14301484) id 5D9EB2634; Wed, 19 Oct 2022 07:16:31 +0000 (UTC) From: Eliav Farber To: , , , , , , , CC: , , , , , , , , Subject: [PATCH v2 1/1] mtd: spi-nor: micron-st: Enable locking for n25q256ax1/mt25qu256a Date: Wed, 19 Oct 2022 07:16:31 +0000 Message-ID: <20221019071631.15191-1-farbere@amazon.com> X-Mailer: git-send-email 2.37.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221019_001650_802400_641E3169 X-CRM114-Status: GOOD ( 11.24 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org n25q256ax1 [1] and mt25qu256a [2] (both have same jedec_id - 0x20bb19) use the 4 bit Block Protection scheme and support Top/Bottom protection via the BP and TB bits of the Status Register. BP3 is located in bit 6 of the Status Register. Tested on both n25q256ax1 and mt25qu256a. [1] https://www.micron.com/-/media/client/global/documents/products/data-sheet/nor-flash/serial-nor/n25q/n25q_256mb_3v.pdf [2] https://www.micron.com/-/media/client/global/documents/products/data-sheet/nor-flash/serial-nor/mt25q/die-rev-a/mt25q_qljs_u_256_aba_0.pdf Signed-off-by: Eliav Farber --- xxd -p /sys/devices/platform/soc/fd882000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp 53464450060101ff00060110300000ff84000102800000ffffffffffffff ffffffffffffffffffffffffffffffffffffe520fbffffffff0f29eb276b 273b27bbffffffffffff27bbffff29eb0c2010d80f520000244a99008b8e 03d4ac0127387a757a75fbbdd55c4a0f82ff81bd3d36ffffffffffffffff ffffffffffffffffffe7ffff21dcffff md5sum /sys/devices/platform/soc/fd882000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp 5ea738216f68c9f98987bb3725699a32 /sys/devices/platform/soc/fd882000.spi/spi_master/spi0/spi0.0/spi-nor/sfdp cat /sys/devices/platform/soc/fd882000.spi/spi_master/spi0/spi0.0/spi-nor/jedec_id 20bb19104400 cat /sys/devices/platform/soc/fd882000.spi/spi_master/spi0/spi0.0/spi-nor/partname mt25qu256a cat /sys/devices/platform/soc/fd882000.spi/spi_master/spi0/spi0.0/spi-nor/manufacturer st v2 --> v1: - Enable locking also for mt25qu256a. - Dump the SFDP tables. drivers/mtd/spi-nor/micron-st.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c index 3c9681a3f7a3..f4d0153a5b1b 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -201,11 +201,15 @@ static const struct flash_info st_nor_parts[] = { MFR_FLAGS(USE_FSR) }, { "mt25qu256a", INFO6(0x20bb19, 0x104400, 64 * 1024, 512) + FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_4BIT_BP | + SPI_NOR_BP3_SR_BIT6) NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) FIXUP_FLAGS(SPI_NOR_4B_OPCODES) MFR_FLAGS(USE_FSR) }, { "n25q256ax1", INFO(0x20bb19, 0, 64 * 1024, 512) + FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB | SPI_NOR_4BIT_BP | + SPI_NOR_BP3_SR_BIT6) NO_SFDP_FLAGS(SECT_4K | SPI_NOR_QUAD_READ) MFR_FLAGS(USE_FSR) }, -- 2.37.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/