From: Samuel Holland <samuel@sholland.org>
To: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
iommu@lists.linux-foundation.org
Cc: Heiko Stuebner <heiko@sntech.de>,
Palmer Dabbelt <palmer@dabbelt.com>,
linux-riscv@lists.infradead.org,
Samuel Holland <samuel@sholland.org>,
Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Maxime Ripard <mripard@kernel.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Rob Herring <robh+dt@kernel.org>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev
Subject: [PATCH 4/5] iommu/sun50i: Add support for the D1 variant
Date: Wed, 27 Apr 2022 20:03:59 -0500 [thread overview]
Message-ID: <20220428010401.11323-5-samuel@sholland.org> (raw)
In-Reply-To: <20220428010401.11323-1-samuel@sholland.org>
D1 contains an IOMMU similar to the one in the H6 SoC, but the D1
variant has no external reset signal. It also has some register
definition changes, but none that affect the current driver.
Signed-off-by: Samuel Holland <samuel@sholland.org>
---
drivers/iommu/sun50i-iommu.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index b9e644b93637..1fb707e37fb3 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -999,11 +999,15 @@ static int sun50i_iommu_probe(struct platform_device *pdev)
return ret;
}
+static const struct sun50i_iommu_variant sun20i_d1_iommu = {
+};
+
static const struct sun50i_iommu_variant sun50i_h6_iommu = {
.has_reset = true,
};
static const struct of_device_id sun50i_iommu_dt[] = {
+ { .compatible = "allwinner,sun20i-d1-iommu", .data = &sun20i_d1_iommu },
{ .compatible = "allwinner,sun50i-h6-iommu", .data = &sun50i_h6_iommu },
{ /* sentinel */ },
};
--
2.35.1
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next prev parent reply other threads:[~2022-04-28 1:06 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-28 1:03 [PATCH 0/5] iommu/sun50i: Allwinner D1 support Samuel Holland
2022-04-28 1:03 ` [PATCH 1/5] dt-bindings: iommu: sun50i: Add compatible for Allwinner D1 Samuel Holland
2022-04-28 7:19 ` Krzysztof Kozlowski
2022-04-28 1:03 ` [PATCH 2/5] iommu/sun50i: Support variants without an external reset Samuel Holland
2022-04-28 5:34 ` Jernej Škrabec
2022-04-28 7:43 ` Philipp Zabel
2022-04-28 1:03 ` [PATCH 3/5] iommu/sun50i: Ensure bypass is disabled Samuel Holland
2022-04-28 5:43 ` Jernej Škrabec
2022-04-28 1:03 ` Samuel Holland [this message]
2022-04-28 5:34 ` [PATCH 4/5] iommu/sun50i: Add support for the D1 variant Jernej Škrabec
2022-04-28 1:04 ` [PATCH 5/5] iommu/sun50i: Ensure the IOMMU can be used for DMA Samuel Holland
2022-04-28 5:35 ` Jernej Škrabec
2022-04-28 11:12 ` Robin Murphy
2022-04-28 5:45 ` [PATCH 0/5] iommu/sun50i: Allwinner D1 support Jernej Škrabec
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