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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 7F6C4C433FE for ; Thu, 9 Sep 2021 12:10:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 69B0A61132 for ; Thu, 9 Sep 2021 12:10:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242034AbhIIMLq (ORCPT ); Thu, 9 Sep 2021 08:11:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:47194 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345370AbhIIMHJ (ORCPT ); Thu, 9 Sep 2021 08:07:09 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 95FB161881; Thu, 9 Sep 2021 11:47:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1631188060; bh=9DMIXRBux4RxvuP1aCmZsUUDGZi45yaNg/jf8kfZswA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nFQD2tm5cbicwYcjv5xjNChKhfNYDDOC9q95zEZNERTodhegTOm2hhNNRfhjsFtd3 CIL0Qgunw9jVljy3VYSAZVWnJIwVXw6iUdiX+/0jJ6stV6evRynbWEpv0zh9UmVSHm PcxwElUMtQePlpqYQd50akkHRbmfxLbsUOP0yONHxBe45nt5XMahlUWLVkdHd3Zsk7 7mxuDsRX0kQXwdy6Pjui0wlexiqQknJGiT1FxKZmIh8X4rZ6MmKMrg1wI1Y1mWSS7H XGiYCJ8umpOQ7cG58zIhteS55GjwHYRnHUBSJyxtWPYKkgojgxPXSTF7V9/8tQUK3m gqFx2fykBAAUw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Robin Gong , Lucas Stach , Mark Brown , Shawn Guo , Sasha Levin , linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 5.13 050/219] spi: imx: fix ERR009165 Date: Thu, 9 Sep 2021 07:43:46 -0400 Message-Id: <20210909114635.143983-50-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210909114635.143983-1-sashal@kernel.org> References: <20210909114635.143983-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org From: Robin Gong [ Upstream commit 980f884866eed4dda2a18de888c5a67dde67d640 ] Change to XCH mode even in dma mode, please refer to the below errata: https://www.nxp.com/docs/en/errata/IMX6DQCE.pdf Signed-off-by: Robin Gong Reviewed-by: Lucas Stach Acked-by: Mark Brown Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- drivers/spi/spi-imx.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 2872993550bd..ac86b3d1052d 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -622,8 +622,8 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx, ctrl |= mx51_ecspi_clkdiv(spi_imx, spi_imx->spi_bus_clk, &clk); spi_imx->spi_bus_clk = clk; - if (spi_imx->usedma) - ctrl |= MX51_ECSPI_CTRL_SMC; + /* ERR009165: work in XHC mode as PIO */ + ctrl &= ~MX51_ECSPI_CTRL_SMC; writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL); @@ -637,7 +637,7 @@ static void mx51_setup_wml(struct spi_imx_data *spi_imx) * and enable DMA request. */ writel(MX51_ECSPI_DMA_RX_WML(spi_imx->wml - 1) | - MX51_ECSPI_DMA_TX_WML(spi_imx->wml) | + MX51_ECSPI_DMA_TX_WML(0) | MX51_ECSPI_DMA_RXT_WML(spi_imx->wml) | MX51_ECSPI_DMA_TEDEN | MX51_ECSPI_DMA_RXDEN | MX51_ECSPI_DMA_RXTDEN, spi_imx->base + MX51_ECSPI_DMA); @@ -1253,10 +1253,6 @@ static int spi_imx_sdma_init(struct device *dev, struct spi_imx_data *spi_imx, { int ret; - /* use pio mode for i.mx6dl chip TKT238285 */ - if (of_machine_is_compatible("fsl,imx6dl")) - return 0; - spi_imx->wml = spi_imx->devtype_data->fifo_size / 2; /* Prepare for TX DMA: */ -- 2.30.2