From: Nicolas Saenz Julienne <nsaenz@kernel.org> To: linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Ray Jui <ray.jui@broadcom.com>, Scott Branden <scott.branden@broadcom.com>, Saenz Julienne <nsaenz@kernel.org>, Ulf Hansson <ulf.hansson@linaro.org>, Stefan Wahren <wahrenst@gmx.net>, Matthias Brugger <mbrugger@suse.com> Cc: f.fainelli@gmail.com, phil@raspberrypi.com, tim.gover@raspberrypi.com, adrian.hunter@intel.com, sbranden@broadcom.com, alcooperx@gmail.com, nsaenzjulienne@suse.de, linux-kernel@vger.kernel.org, robh@kernel.org, stefan.wahren@i2se.com Subject: [PATCH 0/3] BCM2711 sdhci-iproc improvements Date: Tue, 6 Apr 2021 12:47:59 +0200 [thread overview] Message-ID: <20210406104802.20898-1-nsaenz@kernel.org> (raw) This is a follow-up series to "BCM2711's sdhci-iproc CMD timeouts"[1], but since much most of the patches changed I decided to start counting patch revisions from scratch. This series tries to address rather odd behavior from BCM2711's integration of sdhci-iproc (Raspberry Pi 4's SoC). The controller will timeout on SDHCI CMDs under the following conditions: - No SD card plugged in (the card polling thread is running, CD irq disabled). - BCM2711's VPU clock configured at 500MHz or more, lower clocks are OK. There is no specific command that will time out, it seems random. As an extra to this I also include a small fix, and convert the controller's bindings to yaml. Regards, Nicolas [1] https://lore.kernel.org/linux-mmc/20210322185816.27582-1-nsaenz@kernel.org/ --- Nicolas Saenz Julienne (3): dt-bindings: mmc: iproc-sdhci: Convert to json-schema mmc: sdhci-iproc: Cap min clock frequency on BCM2711 mmc: sdhci-iproc: Set SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN on BCM2711 .../bindings/mmc/brcm,iproc-sdhci.yaml | 63 +++++++++++++++++++ .../bindings/mmc/brcm,sdhci-iproc.txt | 37 ----------- drivers/mmc/host/sdhci-iproc.c | 21 ++++++- 3 files changed, 83 insertions(+), 38 deletions(-) create mode 100644 Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml delete mode 100644 Documentation/devicetree/bindings/mmc/brcm,sdhci-iproc.txt -- 2.30.2
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From: Nicolas Saenz Julienne <nsaenz@kernel.org> To: linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Ray Jui <ray.jui@broadcom.com>, Scott Branden <scott.branden@broadcom.com>, Saenz Julienne <nsaenz@kernel.org>, Ulf Hansson <ulf.hansson@linaro.org>, Stefan Wahren <wahrenst@gmx.net>, Matthias Brugger <mbrugger@suse.com> Cc: f.fainelli@gmail.com, phil@raspberrypi.com, tim.gover@raspberrypi.com, adrian.hunter@intel.com, sbranden@broadcom.com, alcooperx@gmail.com, nsaenzjulienne@suse.de, linux-kernel@vger.kernel.org, robh@kernel.org, stefan.wahren@i2se.com Subject: [PATCH 0/3] BCM2711 sdhci-iproc improvements Date: Tue, 6 Apr 2021 12:47:59 +0200 [thread overview] Message-ID: <20210406104802.20898-1-nsaenz@kernel.org> (raw) This is a follow-up series to "BCM2711's sdhci-iproc CMD timeouts"[1], but since much most of the patches changed I decided to start counting patch revisions from scratch. This series tries to address rather odd behavior from BCM2711's integration of sdhci-iproc (Raspberry Pi 4's SoC). The controller will timeout on SDHCI CMDs under the following conditions: - No SD card plugged in (the card polling thread is running, CD irq disabled). - BCM2711's VPU clock configured at 500MHz or more, lower clocks are OK. There is no specific command that will time out, it seems random. As an extra to this I also include a small fix, and convert the controller's bindings to yaml. Regards, Nicolas [1] https://lore.kernel.org/linux-mmc/20210322185816.27582-1-nsaenz@kernel.org/ --- Nicolas Saenz Julienne (3): dt-bindings: mmc: iproc-sdhci: Convert to json-schema mmc: sdhci-iproc: Cap min clock frequency on BCM2711 mmc: sdhci-iproc: Set SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN on BCM2711 .../bindings/mmc/brcm,iproc-sdhci.yaml | 63 +++++++++++++++++++ .../bindings/mmc/brcm,sdhci-iproc.txt | 37 ----------- drivers/mmc/host/sdhci-iproc.c | 21 ++++++- 3 files changed, 83 insertions(+), 38 deletions(-) create mode 100644 Documentation/devicetree/bindings/mmc/brcm,iproc-sdhci.yaml delete mode 100644 Documentation/devicetree/bindings/mmc/brcm,sdhci-iproc.txt -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-04-06 10:48 UTC|newest] Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-06 10:47 Nicolas Saenz Julienne [this message] 2021-04-06 10:47 ` [PATCH 0/3] BCM2711 sdhci-iproc improvements Nicolas Saenz Julienne 2021-04-06 10:48 ` [PATCH 1/3] dt-bindings: mmc: iproc-sdhci: Convert to json-schema Nicolas Saenz Julienne 2021-04-06 10:48 ` Nicolas Saenz Julienne 2021-04-09 16:18 ` Rob Herring 2021-04-09 16:18 ` Rob Herring 2021-04-12 7:52 ` Ulf Hansson 2021-04-12 7:52 ` Ulf Hansson 2021-04-12 8:13 ` nicolas saenz julienne 2021-04-12 8:13 ` nicolas saenz julienne 2021-04-06 10:48 ` [PATCH 2/3] mmc: sdhci-iproc: Cap min clock frequency on BCM2711 Nicolas Saenz Julienne 2021-04-06 10:48 ` Nicolas Saenz Julienne 2021-04-06 17:59 ` Stefan Wahren 2021-04-06 17:59 ` Stefan Wahren 2021-04-07 8:44 ` Nicolas Saenz Julienne 2021-04-07 8:44 ` Nicolas Saenz Julienne 2021-07-30 6:44 ` Ivan T. Ivanov 2021-04-06 10:48 ` [PATCH 3/3] mmc: sdhci-iproc: Set SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN " Nicolas Saenz Julienne 2021-04-06 10:48 ` Nicolas Saenz Julienne
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