From: Sven Peter <sven@svenpeter.dev>
To: Hector Martin <marcan@marcan.st>, Sven Peter <sven@svenpeter.dev>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Alyssa Rosenzweig <alyssa@rosenzweig.io>,
Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
linux-arm-kernel@lists.infradead.org, asahi@lists.linux.dev,
iommu@lists.linux.dev, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/4] Apple M1 USB4/Thunderbolt DART support
Date: Sat, 28 Jan 2023 12:11:10 +0100 [thread overview]
Message-ID: <20230128111114.4049-1-sven@svenpeter.dev> (raw)
Hi,
The M1 SoCs have a second slightly different variant of the regular
DART used for the USB4 PCIe ports. It supports 64 instead of 16 streams
which requires a minor change to the MMIO layout.
There seems to be no way to tell them apart from the regular DARTs by
just looking at the DART_PARAMs register so we have to add a new
compatible for those.
Best,
Sven
Sven Peter (4):
dt-bindings: iommu: dart: Add t8103-usb4-dart compatible
iommu: dart: Add flag to override bypass support
iommu: dart: Write to all DART_T8020_STREAM_SELECT
iommu: dart: Add support for t8103 USB4 DART
.../devicetree/bindings/iommu/apple,dart.yaml | 1 +
drivers/iommu/apple-dart.c | 42 ++++++++++++++++++-
2 files changed, 41 insertions(+), 2 deletions(-)
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Sven Peter <sven@svenpeter.dev>
To: Hector Martin <marcan@marcan.st>, Sven Peter <sven@svenpeter.dev>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Alyssa Rosenzweig <alyssa@rosenzweig.io>,
Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
linux-arm-kernel@lists.infradead.org, asahi@lists.linux.dev,
iommu@lists.linux.dev, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/4] Apple M1 USB4/Thunderbolt DART support
Date: Sat, 28 Jan 2023 12:11:10 +0100 [thread overview]
Message-ID: <20230128111114.4049-1-sven@svenpeter.dev> (raw)
Hi,
The M1 SoCs have a second slightly different variant of the regular
DART used for the USB4 PCIe ports. It supports 64 instead of 16 streams
which requires a minor change to the MMIO layout.
There seems to be no way to tell them apart from the regular DARTs by
just looking at the DART_PARAMs register so we have to add a new
compatible for those.
Best,
Sven
Sven Peter (4):
dt-bindings: iommu: dart: Add t8103-usb4-dart compatible
iommu: dart: Add flag to override bypass support
iommu: dart: Write to all DART_T8020_STREAM_SELECT
iommu: dart: Add support for t8103 USB4 DART
.../devicetree/bindings/iommu/apple,dart.yaml | 1 +
drivers/iommu/apple-dart.c | 42 ++++++++++++++++++-
2 files changed, 41 insertions(+), 2 deletions(-)
--
2.25.1
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next reply other threads:[~2023-01-28 11:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-28 11:11 Sven Peter [this message]
2023-01-28 11:11 ` [PATCH 0/4] Apple M1 USB4/Thunderbolt DART support Sven Peter
2023-01-28 11:11 ` [PATCH 1/4] dt-bindings: iommu: dart: Add t8103-usb4-dart compatible Sven Peter
2023-01-28 11:11 ` Sven Peter
2023-01-28 11:44 ` Hector Martin
2023-01-28 11:44 ` Hector Martin
2023-01-30 21:41 ` Rob Herring
2023-01-30 21:41 ` Rob Herring
2023-01-28 11:11 ` [PATCH 2/4] iommu: dart: Add flag to override bypass support Sven Peter
2023-01-28 11:11 ` Sven Peter
2023-01-28 11:44 ` Hector Martin
2023-01-28 11:44 ` Hector Martin
2023-01-28 11:11 ` [PATCH 3/4] iommu: dart: Write to all DART_T8020_STREAM_SELECT Sven Peter
2023-01-28 11:11 ` Sven Peter
2023-01-28 11:45 ` Hector Martin
2023-01-28 11:45 ` Hector Martin
2023-01-28 11:11 ` [PATCH 4/4] iommu: dart: Add support for M1 USB4 PCIe DART Sven Peter
2023-01-28 11:11 ` Sven Peter
2023-01-28 11:46 ` Hector Martin
2023-01-28 11:46 ` Hector Martin
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