From: Robin Gong <yibin.gong@nxp.com> To: vkoul@kernel.org, mark.rutland@arm.com, broonie@kernel.org, robh+dt@kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, shawnguo@kernel.org, festevam@gmail.com, s.hauer@pengutronix.de, martin.fuzzey@flowbird.group, u.kleine-koenig@pengutronix.de, dan.j.williams@intel.com, matthias.schiffer@ew.tq-group.com, frieder.schrempf@kontron.de, m.felsch@pengutronix.de, l.stach@pengutronix.de, xiaoning.wang@nxp.com Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v16 07/12] spi: imx: fix ERR009165 Date: Wed, 14 Jul 2021 18:20:47 +0800 [thread overview] Message-ID: <1626258052-22198-8-git-send-email-yibin.gong@nxp.com> (raw) In-Reply-To: <1626258052-22198-1-git-send-email-yibin.gong@nxp.com> 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 <yibin.gong@nxp.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Mark Brown <broonie@kernel.org> --- 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 4aee3db..61e4fa0 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -608,8 +608,8 @@ 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); @@ -623,7 +623,7 @@ 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); @@ -1239,10 +1239,6 @@ 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: */ -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Robin Gong <yibin.gong@nxp.com> To: vkoul@kernel.org, mark.rutland@arm.com, broonie@kernel.org, robh+dt@kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, shawnguo@kernel.org, festevam@gmail.com, s.hauer@pengutronix.de, martin.fuzzey@flowbird.group, u.kleine-koenig@pengutronix.de, dan.j.williams@intel.com, matthias.schiffer@ew.tq-group.com, frieder.schrempf@kontron.de, m.felsch@pengutronix.de, l.stach@pengutronix.de, xiaoning.wang@nxp.com Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v16 07/12] spi: imx: fix ERR009165 Date: Wed, 14 Jul 2021 18:20:47 +0800 [thread overview] Message-ID: <1626258052-22198-8-git-send-email-yibin.gong@nxp.com> (raw) In-Reply-To: <1626258052-22198-1-git-send-email-yibin.gong@nxp.com> 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 <yibin.gong@nxp.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Mark Brown <broonie@kernel.org> --- 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 4aee3db..61e4fa0 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -608,8 +608,8 @@ 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); @@ -623,7 +623,7 @@ 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); @@ -1239,10 +1239,6 @@ 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: */ -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-07-14 2:05 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-14 10:20 [PATCH v16 00/12] add ecspi ERR009165 for i.mx6/7 soc family Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 9:05 ` Lucas Stach 2021-07-14 9:05 ` Lucas Stach 2021-07-20 12:22 ` Vinod Koul 2021-07-20 12:22 ` Vinod Koul 2021-07-14 10:20 ` [PATCH v16 01/12] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 10:20 ` [PATCH v16 02/12] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 10:20 ` [PATCH v16 03/12] Revert "dmaengine: imx-sdma: refine to load context only once" Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 10:20 ` [PATCH v16 04/12] dmaengine: imx-sdma: remove duplicated sdma_load_context Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 10:20 ` [PATCH v16 05/12] dmaengine: dma: imx-sdma: add fw_loaded and is_ram_script Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 8:17 ` Lucas Stach 2021-07-14 8:17 ` Lucas Stach 2021-07-14 10:20 ` [PATCH v16 06/12] dmaengine: imx-sdma: add mcu_2_ecspi script Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 10:20 ` Robin Gong [this message] 2021-07-14 10:20 ` [PATCH v16 07/12] spi: imx: fix ERR009165 Robin Gong 2021-07-14 10:20 ` [PATCH v16 08/12] spi: imx: remove ERR009165 workaround on i.mx6ul Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 10:20 ` [PATCH v16 09/12] dmaengine: imx-sdma: remove ERR009165 " Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 8:17 ` Lucas Stach 2021-07-14 8:17 ` Lucas Stach 2021-07-14 10:20 ` [PATCH v16 10/12] dma: imx-sdma: add i.mx6ul compatible name Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 10:20 ` [PATCH v16 11/12] dmaengine: imx-sdma: add uart rom script Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-14 10:20 ` [PATCH v16 12/12] dmaengine: imx-sdma: add terminated list for freed descriptor in worker Robin Gong 2021-07-14 10:20 ` Robin Gong 2021-07-23 3:20 ` [PATCH v16 00/12] add ecspi ERR009165 for i.mx6/7 soc family Shawn Guo 2021-07-23 3:20 ` Shawn Guo
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