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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5A65C43215 for ; Wed, 27 Nov 2019 14:47:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8F00220722 for ; Wed, 27 Nov 2019 14:47:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574866030; bh=71KvN8DCR94x7xslYbCNrCnuRBb8jesfxVzzsK1oeUg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=lBTa33+5BiVANemG6VCf7DirAJj9S+Xb6FkbbI8rOSAKny+XmXj3ry/kFjmXB8WUF d1E1o/ZFifxNbSBZJ+C4yqVsYSiRErzx0OGAy8gNzllxTOCSRrAaE0XRy4PRlR9xrD xRFORBYvwdkf0uiDcXPUb/CvjOtuUeKZ55JFnsLY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726537AbfK0OrK (ORCPT ); Wed, 27 Nov 2019 09:47:10 -0500 Received: from mail.kernel.org ([198.145.29.99]:58168 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726514AbfK0OrJ (ORCPT ); Wed, 27 Nov 2019 09:47:09 -0500 Received: from localhost.localdomain.com (unknown [77.139.212.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DF7C6206F0; Wed, 27 Nov 2019 14:47:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574866029; bh=71KvN8DCR94x7xslYbCNrCnuRBb8jesfxVzzsK1oeUg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Gx9LwsMS0smR//8RgMtRntBnV1dnTGlXpNnLIaU1W4+R9S3snZ0Sy4bBBnk7ZZJqz WwOStR/w+TEFTZqFhkOZswh6RG7nEKY329KJE52O9FUWcjHNg7HYKSHXg1VMrxklgc BfBdechygoGY/nlIc7o8MJxqZogfHfiHeYC1o/tc= From: Lorenzo Bianconi To: nbd@nbd.name Cc: linux-wireless@vger.kernel.org, devicetree@vger.kernel.org, lorenzo.bianconi@redhat.com Subject: [PATCH v2 1/2] mt76: eeprom: add support for big endian eeprom partition Date: Wed, 27 Nov 2019 16:46:33 +0200 Message-Id: <61e89623446ed8914e5969114c7ae8c623f3e3ba.1574865558.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org mt76x0e users reported some devices (e.g TP-Link Archer VR200v) have been flashed with big endian radio partition. Add the possibility to specify eeprom endianness using big-endian dts property and in case covert eeprom data in little endian Tested-by: Kevin Schmidt Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/eeprom.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c index 804224e81103..33d992d5662a 100644 --- a/drivers/net/wireless/mediatek/mt76/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/eeprom.c @@ -64,6 +64,16 @@ mt76_get_of_eeprom(struct mt76_dev *dev, int len) goto out_put_node; } + if (of_property_read_bool(dev->dev->of_node, "big-endian")) { + u8 *data = (u8 *)dev->eeprom.data; + int i; + + /* convert eeprom data in Little Endian */ + for (i = 0; i < round_down(len, 2); i += 2) + put_unaligned_le16(get_unaligned_be16(&data[i]), + &data[i]); + } + out_put_node: of_node_put(np); return ret; -- 2.21.0