[RESEND v6 06/13] spi: imx: fix ERR009165

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From: Robin Gong <yibin.gong@nxp.com>
To: s.hauer@pengutronix.de, vkoul@kernel.org, shawnguo@kernel.org,
	u.kleine-koenig@pengutronix.de, broonie@kernel.org,
	robh+dt@kernel.org, festevam@gmail.com, dan.j.williams@intel.com,
	mark.rutland@arm.com, catalin.marinas@arm.com,
	will.deacon@arm.com, l.stach@pengutronix.de,
	martin.fuzzey@flowbird.group
Cc: kernel@pengutronix.de, linux-spi@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-imx@nxp.com,
	dmaengine@vger.kernel.org, devicetree@vger.kernel.org
Subject: [RESEND v6  06/13] spi: imx: fix ERR009165
Date: Tue, 10 Mar 2020 19:31:55 +0800	[thread overview]
Message-ID: <1583839922-22699-7-git-send-email-yibin.gong@nxp.com> (raw)
In-Reply-To: <1583839922-22699-1-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>
Acked-by: Mark Brown <broonie@kernel.org>
---
 drivers/spi/spi-imx.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index f4f28a4..842a86e 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -585,8 +585,9 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
 	ctrl |= mx51_ecspi_clkdiv(spi_imx, t->speed_hz, &clk);
 	spi_imx->spi_bus_clk = clk;
 
+	/* ERR009165: work in XHC mode as PIO */
 	if (spi_imx->usedma)
-		ctrl |= MX51_ECSPI_CTRL_SMC;
+		ctrl &= ~MX51_ECSPI_CTRL_SMC;
 
 	writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
 
@@ -612,12 +613,14 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
 
 static void mx51_setup_wml(struct spi_imx_data *spi_imx)
 {
+	u32 tx_wml = 0;
+
 	/*
 	 * Configure the DMA register: setup the watermark
 	 * 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(tx_wml) |
 		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);
@@ -1171,7 +1174,11 @@ static int spi_imx_dma_configure(struct spi_master *master)
 	tx.direction = DMA_MEM_TO_DEV;
 	tx.dst_addr = spi_imx->base_phys + MXC_CSPITXDATA;
 	tx.dst_addr_width = buswidth;
-	tx.dst_maxburst = spi_imx->wml;
+	/*
+	 * For ERR009165 with tx_wml = 0 could enlarge burst size to fifo size
+	 * to speed up fifo filling as possible.
+	 */
+	tx.dst_maxburst = spi_imx->devtype_data->fifo_size;
 	ret = dmaengine_slave_config(master->dma_tx, &tx);
 	if (ret) {
 		dev_err(spi_imx->dev, "TX dma configuration failed with %d\n", ret);
@@ -1265,10 +1272,6 @@ 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-3arQi8VN3Tc@public.gmane.org>
To: s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
	vkoul-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
	broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	festevam-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	mark.rutland-5wv7dgnIgG8@public.gmane.org,
	catalin.marinas-5wv7dgnIgG8@public.gmane.org,
	will.deacon-5wv7dgnIgG8@public.gmane.org,
	l.stach-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
	martin.fuzzey-X8SyT9posyX3d/wEbhiU/g@public.gmane.org
Cc: kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
	linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-imx-3arQi8VN3Tc@public.gmane.org,
	dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [RESEND v6  06/13] spi: imx: fix ERR009165
Date: Tue, 10 Mar 2020 19:31:55 +0800	[thread overview]
Message-ID: <1583839922-22699-7-git-send-email-yibin.gong@nxp.com> (raw)
In-Reply-To: <1583839922-22699-1-git-send-email-yibin.gong-3arQi8VN3Tc@public.gmane.org>

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-3arQi8VN3Tc@public.gmane.org>
Acked-by: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
 drivers/spi/spi-imx.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index f4f28a4..842a86e 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -585,8 +585,9 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
 	ctrl |= mx51_ecspi_clkdiv(spi_imx, t->speed_hz, &clk);
 	spi_imx->spi_bus_clk = clk;
 
+	/* ERR009165: work in XHC mode as PIO */
 	if (spi_imx->usedma)
-		ctrl |= MX51_ECSPI_CTRL_SMC;
+		ctrl &= ~MX51_ECSPI_CTRL_SMC;
 
 	writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
 
@@ -612,12 +613,14 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
 
 static void mx51_setup_wml(struct spi_imx_data *spi_imx)
 {
+	u32 tx_wml = 0;
+
 	/*
 	 * Configure the DMA register: setup the watermark
 	 * 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(tx_wml) |
 		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);
@@ -1171,7 +1174,11 @@ static int spi_imx_dma_configure(struct spi_master *master)
 	tx.direction = DMA_MEM_TO_DEV;
 	tx.dst_addr = spi_imx->base_phys + MXC_CSPITXDATA;
 	tx.dst_addr_width = buswidth;
-	tx.dst_maxburst = spi_imx->wml;
+	/*
+	 * For ERR009165 with tx_wml = 0 could enlarge burst size to fifo size
+	 * to speed up fifo filling as possible.
+	 */
+	tx.dst_maxburst = spi_imx->devtype_data->fifo_size;
 	ret = dmaengine_slave_config(master->dma_tx, &tx);
 	if (ret) {
 		dev_err(spi_imx->dev, "TX dma configuration failed with %d\n", ret);
@@ -1265,10 +1272,6 @@ 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: s.hauer@pengutronix.de, vkoul@kernel.org, shawnguo@kernel.org,
	u.kleine-koenig@pengutronix.de, broonie@kernel.org,
	robh+dt@kernel.org, festevam@gmail.com, dan.j.williams@intel.com,
	mark.rutland@arm.com, catalin.marinas@arm.com,
	will.deacon@arm.com, l.stach@pengutronix.de,
	martin.fuzzey@flowbird.group
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: [RESEND v6  06/13] spi: imx: fix ERR009165
Date: Tue, 10 Mar 2020 19:31:55 +0800	[thread overview]
Message-ID: <1583839922-22699-7-git-send-email-yibin.gong@nxp.com> (raw)
In-Reply-To: <1583839922-22699-1-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>
Acked-by: Mark Brown <broonie@kernel.org>
---
 drivers/spi/spi-imx.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index f4f28a4..842a86e 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -585,8 +585,9 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
 	ctrl |= mx51_ecspi_clkdiv(spi_imx, t->speed_hz, &clk);
 	spi_imx->spi_bus_clk = clk;
 
+	/* ERR009165: work in XHC mode as PIO */
 	if (spi_imx->usedma)
-		ctrl |= MX51_ECSPI_CTRL_SMC;
+		ctrl &= ~MX51_ECSPI_CTRL_SMC;
 
 	writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
 
@@ -612,12 +613,14 @@ static int mx51_ecspi_prepare_transfer(struct spi_imx_data *spi_imx,
 
 static void mx51_setup_wml(struct spi_imx_data *spi_imx)
 {
+	u32 tx_wml = 0;
+
 	/*
 	 * Configure the DMA register: setup the watermark
 	 * 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(tx_wml) |
 		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);
@@ -1171,7 +1174,11 @@ static int spi_imx_dma_configure(struct spi_master *master)
 	tx.direction = DMA_MEM_TO_DEV;
 	tx.dst_addr = spi_imx->base_phys + MXC_CSPITXDATA;
 	tx.dst_addr_width = buswidth;
-	tx.dst_maxburst = spi_imx->wml;
+	/*
+	 * For ERR009165 with tx_wml = 0 could enlarge burst size to fifo size
+	 * to speed up fifo filling as possible.
+	 */
+	tx.dst_maxburst = spi_imx->devtype_data->fifo_size;
 	ret = dmaengine_slave_config(master->dma_tx, &tx);
 	if (ret) {
 		dev_err(spi_imx->dev, "TX dma configuration failed with %d\n", ret);
@@ -1265,10 +1272,6 @@ 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


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next prev parent reply	other threads:[~2020-03-10  3:31 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-10 11:31 [RESEND v6 00/13] add ecspi ERR009165 for i.mx6/7 soc family Robin Gong
2020-03-10 11:31 ` Robin Gong
2020-03-10 11:31 ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 01/13] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 02/13] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 03/13] Revert "dmaengine: imx-sdma: refine to load context only once" Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 04/13] dmaengine: imx-sdma: remove dupilicated sdma_load_context Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 05/13] dmaengine: imx-sdma: add mcu_2_ecspi script Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31 ` Robin Gong [this message]
2020-03-10 11:31   ` [RESEND v6 06/13] spi: imx: fix ERR009165 Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10  7:39   ` Sascha Hauer
2020-03-10  7:39     ` Sascha Hauer
2020-03-10  7:39     ` Sascha Hauer
2020-03-10  8:27     ` Robin Gong
2020-03-10  8:27       ` Robin Gong
2020-03-10  8:27       ` Robin Gong
2020-03-10  8:37       ` Uwe Kleine-König
2020-03-10  8:37         ` Uwe Kleine-König
2020-03-10  8:37         ` Uwe Kleine-König
2020-03-10  9:02         ` Robin Gong
2020-03-10  9:02           ` Robin Gong
2020-03-10  9:02           ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 07/13] spi: imx: remove ERR009165 workaround on i.mx6ul Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10  8:02   ` Sascha Hauer
2020-03-10  8:02     ` Sascha Hauer
2020-03-10  8:02     ` Sascha Hauer
2020-03-10  8:43     ` Robin Gong
2020-03-10  8:43       ` Robin Gong
2020-03-10  8:43       ` Robin Gong
2020-03-10  9:25       ` Sascha Hauer
2020-03-10  9:25         ` Sascha Hauer
2020-03-10  9:25         ` Sascha Hauer
2020-03-10  9:31         ` Robin Gong
2020-03-10  9:31           ` Robin Gong
2020-03-10  9:31           ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 08/13] spi: imx: add new i.mx6ul compatible name in binding doc Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 18:41   ` Rob Herring
2020-03-10 18:41     ` Rob Herring
2020-03-10 18:41     ` Rob Herring
2020-03-11  3:22     ` Robin Gong
2020-03-11  3:22       ` Robin Gong
2020-03-11  3:22       ` Robin Gong
2020-03-11  3:22       ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 09/13] dmaengine: imx-sdma: remove ERR009165 on i.mx6ul Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10  8:19   ` Sascha Hauer
2020-03-10  8:19     ` Sascha Hauer
2020-03-10  8:19     ` Sascha Hauer
2020-03-10  8:59     ` Robin Gong
2020-03-10  8:59       ` Robin Gong
2020-03-10  8:59       ` Robin Gong
2020-03-10  9:28       ` Sascha Hauer
2020-03-10  9:28         ` Sascha Hauer
2020-03-10  9:28         ` Sascha Hauer
2020-03-10  9:35         ` Robin Gong
2020-03-10  9:35           ` Robin Gong
2020-03-10  9:35           ` Robin Gong
2020-03-10 11:31 ` [RESEND v6 10/13] dma: imx-sdma: add i.mx6ul/6sx compatible name Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:31   ` Robin Gong
2020-03-10 11:32 ` [RESEND v6 11/13] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm Robin Gong
2020-03-10 11:32   ` Robin Gong
2020-03-10 11:32   ` Robin Gong
2020-03-10 11:32 ` [RESEND v6 12/13] dmaengine: imx-sdma: add uart rom script Robin Gong
2020-03-10 11:32   ` Robin Gong
2020-03-10 11:32   ` Robin Gong
2020-03-10 11:32 ` [RESEND v6 13/13] Revert "dmaengine: imx-sdma: fix context cache" Robin Gong
2020-03-10 11:32   ` Robin Gong

find likely ancestor, descendant, or conflicting patches for this message:
dfblob:f4f28a4 dfblob:f4f28a4 dfblob:f4f28a4 dfblob:842a86e
dfblob:842a86e dfblob:842a86e
	(help)

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