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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Subject: [PATCH v2 08/48] net: fec_imx: Use dma mapping functions
Date: Sat, 26 May 2018 13:44:11 -0700	[thread overview]
Message-ID: <20180526204451.16530-9-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20180526204451.16530-1-andrew.smirnov@gmail.com>

From: Sascha Hauer <s.hauer@pengutronix.de>

Rather than doing DMA on the input buffer address get a proper DMA
address from the mapping functions.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/net/fec_imx.c | 15 +++++++++------
 drivers/net/fec_imx.h |  1 +
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/net/fec_imx.c b/drivers/net/fec_imx.c
index 33599dd82..0ca594082 100644
--- a/drivers/net/fec_imx.c
+++ b/drivers/net/fec_imx.c
@@ -453,6 +453,7 @@ static int fec_send(struct eth_device *dev, void *eth_data, int data_length)
 {
 	unsigned int status;
 	uint64_t tmo;
+	dma_addr_t dma;
 
 	/*
 	 * This routine transmits one frame.  This routine only accepts
@@ -466,7 +467,7 @@ static int fec_send(struct eth_device *dev, void *eth_data, int data_length)
 		return -1;
 	}
 
-	if ((uint32_t)eth_data & (DB_DATA_ALIGNMENT-1))
+	if ((unsigned long)eth_data & (DB_DATA_ALIGNMENT - 1))
 		dev_warn(&dev->dev, "Transmit data not aligned: %p!\n", eth_data);
 
 	/*
@@ -479,10 +480,12 @@ static int fec_send(struct eth_device *dev, void *eth_data, int data_length)
 
 	writew(data_length, &fec->tbd_base[fec->tbd_index].data_length);
 
-	writel((uint32_t)(eth_data), &fec->tbd_base[fec->tbd_index].data_pointer);
+	dma = dma_map_single(fec->dev, eth_data, data_length, DMA_TO_DEVICE);
+	if (dma_mapping_error(fec->dev, dma))
+		return -EIO;
+
+	writel((uint32_t)(dma), &fec->tbd_base[fec->tbd_index].data_pointer);
 
-	dma_sync_single_for_device((unsigned long)eth_data, data_length,
-				   DMA_TO_DEVICE);
 	/*
 	 * update BD's status now
 	 * This block:
@@ -505,8 +508,7 @@ static int fec_send(struct eth_device *dev, void *eth_data, int data_length)
 			break;
 		}
 	}
-	dma_sync_single_for_cpu((unsigned long)eth_data, data_length,
-				DMA_TO_DEVICE);
+	dma_unmap_single(fec->dev, dma, data_length, DMA_TO_DEVICE);
 
 	/* for next transmission use the other buffer */
 	if (fec->tbd_index)
@@ -748,6 +750,7 @@ static int fec_probe(struct device_d *dev)
 
 	fec = xzalloc(sizeof(*fec));
 	fec->type = type;
+	fec->dev = dev;
 	edev = &fec->edev;
 	dev->priv = fec;
 	edev->priv = fec;
diff --git a/drivers/net/fec_imx.h b/drivers/net/fec_imx.h
index 561de0890..e3f60dd66 100644
--- a/drivers/net/fec_imx.h
+++ b/drivers/net/fec_imx.h
@@ -149,6 +149,7 @@ enum fec_opt_clock {
  */
 struct fec_priv {
 	struct eth_device edev;
+	struct device_d *dev;
 	void __iomem *regs;
 	struct buffer_descriptor __iomem *rbd_base;	/* RBD ring                  */
 	int rbd_index;				/* next receive BD to read   */
-- 
2.17.0


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  parent reply	other threads:[~2018-05-26 20:46 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-26 20:44 [PATCH v2 00/48] ARM: i.MX8MQ and EVK support Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 01/48] ARM: i.MX: xload: Fix compiler warning Andrey Smirnov
2018-05-27  7:28   ` Sam Ravnborg
2018-05-28  1:03     ` Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 02/48] ARM: i.MX: compile arm32 specific errata only for CPU32 Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 03/48] ARM: Add i.MX8 support Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 04/48] aarch64: Add i.MX8 debug UART support Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 05/48] Include our own include/dt-bindings Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 06/48] mci: imx-esdhc: use dma mapping functions Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 07/48] net: fec_imx: remove unnecessary DMA sync ops Andrey Smirnov
2018-05-26 20:44 ` Andrey Smirnov [this message]
2018-05-26 20:44 ` [PATCH v2 09/48] net: fec_imx: Make use of IS_ALIGNED Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 10/48] clock: Add i.MX8MQ clock driver Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 11/48] serial: i.MX: Add i.MX8 support Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 12/48] mmc: i.MX esdhc: " Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 13/48] gpio: i.MX: Add i.MX8mq support Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 14/48] ARM: i.MX: ocotp: Add i.MX8MQ support Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 15/48] ARM: i.MX: Split shared CCM code into a separate file Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 16/48] ARM: i.MX: Add IOMUX pad constants for i.MX8 Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 17/48] scripts/imx: Add trivial i.MX8 support Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 18/48] ARM: i.MX: Add basic CCM constants for i.MX8 Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 19/48] ARM: Add constants and helpers for system counter interface Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 20/48] clocksource: armv8-timer: Convert explicit assembly into helpers Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 21/48] ARM: i.MX8: Initialize system counter Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 22/48] ARM: i.MX: boot: Fix address casting on 64-bit platforms Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 23/48] ARM: boot: Add trivial i.MX8 support Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 24/48] ARM: i.MX: xload-esdhc: Rework to make code be less i.MX6-specific Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 25/48] ARM: i.MX: xload-esdhc: Allow custom buffer address, device offset Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 26/48] ARM: i.MX: xload-esdhc: Add support for i.MX8 Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 27/48] pinctrl: i.MX: " Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 28/48] Documentation: imx: Change block size for 'dd' to 1024 Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 29/48] Documentation: i.MX: Add missing <soctype> Andrey Smirnov
2018-05-28 15:23   ` Sascha Hauer
2018-05-28 18:02     ` Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 30/48] clocksource: armv8-timer: Make armv8_clocksource_read() static Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 31/48] clocksource: armv8-timer: Make use of postcore_platform_driver() Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 32/48] Port <linux/iopoll.h> from U-Boot Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 33/48] common/clock: Move delay and timeout functions to clock.h Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 34/48] clock: Use udelay() to implement mdelay() Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 35/48] ARM: i.MX8: Add DDRC PHY and DDR CTL base addresses Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 36/48] ARM: i.MX8: Add DDRC PHY support code Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 37/48] ARM: Specify HAVE_PBL_IMAGE for CPU_64 Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 38/48] ARM: lib64: Make string functions aware of MMU configuration Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 39/48] ARM: mmu: Make use of dsb() and isb() helpers Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 40/48] ARM: cache: Remove unused cache ops struct Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 41/48] ARM: no-mmu: Disable building for ARMv8 Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 42/48] ARM: interrupts64: Include ESR value in exception traceback Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 43/48] ARM: mmu64: Trivial code simplification Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 44/48] ARM: mmu64: Make use of create_table() Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 45/48] ARM: mmu64: Convert flags in arch_remap_range() Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 46/48] ARM: include: dma: Add missing no-MMU stubs Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 47/48] ARM: i.MX8: Add i.MX8mq EVK support Andrey Smirnov
2018-05-28 15:51   ` Sascha Hauer
2018-05-28 18:04     ` Andrey Smirnov
2018-05-28 16:04   ` Sascha Hauer
2018-05-28 18:07     ` Andrey Smirnov
2018-05-26 20:44 ` [PATCH v2 48/48] ARM: Introduce imx_v8_defconfig Andrey Smirnov

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