From: Lucas Stach <l.stach@pengutronix.de>
To: Robin Gong <yibin.gong@nxp.com>,
"broonie@kernel.org" <broonie@kernel.org>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"festevam@gmail.com" <festevam@gmail.com>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"mark.rutland@arm.com" <mark.rutland@arm.com>,
"u.kleine-koenig@pengutronix.de" <u.kleine-koenig@pengutronix.de>,
"plyatov@gmail.com" <plyatov@gmail.com>,
"dan.j.williams@intel.com" <dan.j.williams@intel.com>,
"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
"will.deacon@arm.com" <will.deacon@arm.com>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
dl-linux-imx <linux-imx@nxp.com>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 00/15] add ecspi ERR009165 for i.mx6/7 soc family
Date: Fri, 26 Apr 2019 10:19:39 +0200 [thread overview]
Message-ID: <1556266779.2584.15.camel@pengutronix.de> (raw)
In-Reply-To: <1556265512-9130-1-git-send-email-yibin.gong@nxp.com>
Hi Robin,
Am Freitag, den 26.04.2019, 08:05 +0000 schrieb Robin Gong:
> There is ecspi ERR009165 on i.mx6/7 soc family, which cause FIFO
> transfer to be send twice in DMA mode. Please get more information from:
> https://www.nxp.com/docs/en/errata/IMX6DQCE.pdf. The workaround is adding
> new sdma ram script which works in XCH mode as PIO inside sdma instead
> of SMC mode, meanwhile, 'TX_THRESHOLD' should be 0.
I would like to have a more in-depth explanation about how this new RAM
script differs from the existing ROM script and the changes to the
state transitions.
> The issue should be exist on all legacy i.mx6/7 soc family before i.mx6ul,
> NXP fix this design issue from i.mx6ul, so newer chips such as i.mx6ull/
> i.mx8mq/i.mx8mm, don't need this workaroud anymore. This patch set
> add new 'fsl,imx6ul-ecspi' for ecspi driver and 'ecspi_fixed' in sdma
> driver to choose if need errata or not.
> The first two reverted patches should be the same issue, though, it
> seems 'fixed' by changing to other shp script. Hope Sean or Sascha could
> have the chance to test this patch set if could fix their issues.
> Besides, enable sdma support for i.mx8mm/8mq and fix ecspi1 not work
> on i.mx8mm because the event id is zero.
>
> PS:
> Please get sdma firmware from below linux-firmware and copy it to your
> local rootfs /lib/firmware/imx/sdma.
> https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/imx/sdma
This is not an option as long as the SDMA RAM firmware breaks the
mainline serial DMA support. Please provide a fixed SDMA RAM firmware
that doesn't replace the ROM serial script, as that one is totally
fine.
Regards,
Lucas
> v2:
> 1. add commit log for reverted patches.
> 2. add comment for 'ecspi_fixed' in sdma driver.
> 3. add 'fsl,imx6sll-ecspi' compatible instead of 'fsl,imx6ul-ecspi'
> rather than remove.
>
>
> Robin Gong (15):
> Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core"
> Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores"
> Revert "dmaengine: imx-sdma: refine to load context only once"
> dmaengine: imx-sdma: remove dupilicated sdma_load_context
> dma: engine: imx-sdma: add mcu_2_ecspi script
> spi: imx: fix ERR009165
> spi: imx: remove ERR009165 workaround on i.mx6ul
> dt-bindings: spi: imx: add i.mx6ul to state errata fixed
> dmaengine: imx-sdma: remove ERR009165 on i.mx6ul
> dt-bindings: dma: imx-sdma: add i.mx6ul/6sx compatible name
> dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm
> ARM64: dts: freescale: imx8mm/8mq: update new compatible name for
> ecspi and sdma
> ARM: dts: imx6ul: add dma support on ecspi
> ARM: dts: imx6sll: correct ecspi/sdma compatible
> arm64: defconfig: Enable SDMA on i.mx8mq/8mm
>
> .../devicetree/bindings/dma/fsl-imx-sdma.txt | 2 +
> .../devicetree/bindings/spi/fsl-imx-cspi.txt | 2 +
> arch/arm/boot/dts/imx6q.dtsi | 2 +-
> arch/arm/boot/dts/imx6qdl.dtsi | 8 +--
> arch/arm/boot/dts/imx6sll.dtsi | 10 ++--
> arch/arm/boot/dts/imx6ul.dtsi | 8 +++
> arch/arm64/boot/dts/freescale/imx8mm.dtsi | 14 ++---
> arch/arm64/boot/dts/freescale/imx8mq.dtsi | 6 +-
> arch/arm64/configs/defconfig | 3 +
> drivers/dma/imx-sdma.c | 67 ++++++++++++++++------
> drivers/spi/spi-imx.c | 46 ++++++++++++---
> include/linux/platform_data/dma-imx-sdma.h | 1 +
> 12 files changed, 124 insertions(+), 45 deletions(-)
>
> --
> 2.7.4
>
next prev parent reply other threads:[~2019-04-26 8:19 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-26 8:05 [PATCH v2 00/15] add ecspi ERR009165 for i.mx6/7 soc family Robin Gong
2019-04-26 8:05 ` [v2,01/15] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Robin Gong
2019-04-26 8:05 ` [PATCH v2 01/15] " Robin Gong
2019-04-26 8:05 ` [v2,02/15] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" Robin Gong
2019-04-26 8:05 ` [PATCH v2 02/15] " Robin Gong
2019-04-26 8:05 ` [v2,03/15] Revert "dmaengine: imx-sdma: refine to load context only once" Robin Gong
2019-04-26 8:05 ` [PATCH v2 03/15] " Robin Gong
2019-04-26 8:05 ` [v2,04/15] dmaengine: imx-sdma: remove dupilicated sdma_load_context Robin Gong
2019-04-26 8:05 ` [PATCH v2 04/15] " Robin Gong
2019-04-26 8:05 ` [v2,05/15] dmaengine: imx-sdma: add mcu_2_ecspi script Robin Gong
2019-04-26 8:05 ` [PATCH v2 05/15] " Robin Gong
2019-04-26 8:05 ` [v2,06/15] spi: imx: fix ERR009165 Robin Gong
2019-04-26 8:05 ` [PATCH v2 06/15] " Robin Gong
2019-04-26 9:07 ` [v2,06/15] " Lucas Stach
2019-04-26 9:07 ` [PATCH v2 06/15] " Lucas Stach
2019-04-26 9:22 ` [v2,06/15] " Robin Gong
2019-04-26 9:22 ` [EXT] Re: [PATCH v2 06/15] " Robin Gong
2019-04-26 9:37 ` [v2,06/15] " Lucas Stach
2019-04-26 9:37 ` [EXT] Re: [PATCH v2 06/15] " Lucas Stach
2019-04-26 9:53 ` [v2,06/15] " Robin Gong
2019-04-26 9:53 ` [EXT] Re: [PATCH v2 06/15] " Robin Gong
2019-04-26 8:05 ` [v2,07/15] spi: imx: remove ERR009165 workaround on i.mx6ul Robin Gong
2019-04-26 8:05 ` [PATCH v2 07/15] " Robin Gong
2019-04-26 9:09 ` [v2,07/15] " Lucas Stach
2019-04-26 9:09 ` [PATCH v2 07/15] " Lucas Stach
2019-04-26 9:32 ` [v2,07/15] " Robin Gong
2019-04-26 9:32 ` [EXT] Re: [PATCH v2 07/15] " Robin Gong
2019-04-26 8:05 ` [v2,08/15] dt-bindings: spi: imx: add i.mx6ul to state errata fixed Robin Gong
2019-04-26 8:05 ` [PATCH v2 08/15] " Robin Gong
2019-05-01 20:07 ` [v2,08/15] " Rob Herring
2019-05-01 20:07 ` [PATCH v2 08/15] " Rob Herring
2019-05-05 8:55 ` [EXT] " Robin Gong
2019-05-02 6:59 ` [v2,08/15] " Uwe Kleine-König
2019-05-02 6:59 ` [PATCH v2 08/15] " Uwe Kleine-König
2019-05-05 8:47 ` [EXT] " Robin Gong
2019-04-26 8:05 ` [v2,09/15] dmaengine: imx-sdma: remove ERR009165 on i.mx6ul Robin Gong
2019-04-26 8:05 ` [PATCH v2 09/15] " Robin Gong
2019-04-26 8:06 ` [v2,10/15] dt-bindings: dma: imx-sdma: add i.mx6ul/6sx compatible name Robin Gong
2019-04-26 8:06 ` [PATCH v2 10/15] " Robin Gong
2019-05-01 20:07 ` [v2,10/15] " Rob Herring
2019-05-01 20:07 ` [PATCH v2 10/15] " Rob Herring
2019-04-26 8:06 ` [v2,11/15] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm Robin Gong
2019-04-26 8:06 ` [PATCH v2 11/15] " Robin Gong
2019-04-26 8:06 ` [v2,12/15] ARM64: dts: freescale: imx8mm/8mq: update new compatible name for ecspi and sdma Robin Gong
2019-04-26 8:06 ` [PATCH v2 12/15] " Robin Gong
2019-04-26 8:06 ` [v2,13/15] ARM: dts: imx6ul: add dma support on ecspi Robin Gong
2019-04-26 8:06 ` [PATCH v2 13/15] " Robin Gong
2019-04-26 8:06 ` [v2,14/15] ARM: dts: imx6sll: correct ecspi/sdma compatible Robin Gong
2019-04-26 8:06 ` [PATCH v2 14/15] " Robin Gong
2019-04-26 8:06 ` [v2,15/15] arm64: defconfig: Enable SDMA on i.mx8mq/8mm Robin Gong
2019-04-26 8:06 ` [PATCH v2 15/15] " Robin Gong
2019-04-26 8:19 ` Lucas Stach [this message]
2019-04-26 8:47 ` [EXT] Re: [PATCH v2 00/15] add ecspi ERR009165 for i.mx6/7 soc family Robin Gong
2019-04-26 9:06 ` Lucas Stach
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