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 phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1F969C433EF for ; Thu, 7 Apr 2022 10:19:13 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id CF93883BE4; Thu, 7 Apr 2022 12:18:54 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="qNcCqufo"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id AA7D483C8F; Thu, 7 Apr 2022 12:17:56 +0200 (CEST) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id E13CF83CA1 for ; Thu, 7 Apr 2022 12:17:43 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=pali@kernel.org Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6AE2F61D58; Thu, 7 Apr 2022 10:17:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 26F29C385AC; Thu, 7 Apr 2022 10:17:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1649326661; bh=HUR+paHijDg7Q1D0fYiocTs7kH5rK9SChfPSiRYfWOs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qNcCqufoLihae4ofJKKkrJ2E3CapBy+p5h1L6npSvS+dEJam9hWY0BIHCmpn45Tfx qztuhlmXW9KyWKRV6dmfc/9swMDETzNVOpACYTR+rCmne9hQL56vwW3XAeaMZ2LHfx 44yF2BTtq//6BGA9AHntehpEGQU6ZY/5ZjcFKcILDMGAa9ZswL/58bQJvZIVmSOkZg rO3XCgs7+G/QX+PE7hawbPSpmCf9QzWxHjHUK0EhyMgrkPLV5usqTdMjeAmH8/eEpf PlDoVxsuUA3sbmKDOoIS7/w/n1lJka5KF7y963dk5nzlghqNVTzbMgGxA65oiecilT zIRL4AYGyps1Q== Received: by pali.im (Postfix) id 8C4B9BD5; Thu, 7 Apr 2022 12:17:38 +0200 (CEST) From: =?UTF-8?q?Pali=20Roh=C3=A1r?= To: Priyanka Jain , Qiang Zhao , Shengzhou Liu , Sinan Akman Cc: u-boot@lists.denx.de Subject: [PATCH 03/11] board: freescale: p1_p2_rdb_pc: Fix parsing negated upper 4 bits from boot input data Date: Thu, 7 Apr 2022 12:16:16 +0200 Message-Id: <20220407101624.15850-4-pali@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220407101624.15850-1-pali@kernel.org> References: <20220407101624.15850-1-pali@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean On some boards upper 4 bits of i2c boot input data (register 0) are negated. So negate read input data back prior processing them. Fixes printing correct rom_loc: value. Signed-off-by: Pali Rohár --- board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c index 29502a5c05c2..766a82386079 100644 --- a/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c +++ b/board/freescale/p1_p2_rdb_pc/p1_p2_rdb_pc.c @@ -202,6 +202,10 @@ int checkboard(void) } #endif +#ifdef __SW_BOOT_IN_NEG_UPPER4 + in = (~in & 0xf0) | (in & 0x0f); +#endif + val = (in & io_config) | (out & (~io_config)); puts("rom_loc: "); -- 2.20.1