From: Niklas Cassel <cassel@kernel.org>
To: Heiko Stuebner <heiko@sntech.de>
Cc: linux-rockchip@lists.infradead.org,
Niklas Cassel <cassel@kernel.org>, Frank Li <Frank.Li@nxp.com>
Subject: [PATCH] arm64: dts: rockchip: rk3588: add msi-map for pcie3x4_ep
Date: Mon, 8 Sep 2025 18:24:01 +0200 [thread overview]
Message-ID: <20250908162400.535441-2-cassel@kernel.org> (raw)
Support for msi-map in the pci-ep device tree binding was added in
commit a6aed6b9c79e ("dt-bindings: PCI: pci-ep: Add support for iommu-map
and msi-map").
The PCI endpoint doorbell feature was added in commit 1c3b002c6bf6 ("PCI:
endpoint: Add RC-to-EP doorbell support using platform MSI controller").
The PCI endpoint doorbell feature requires:
-An interrupt controller that implements GIC interrupt translation
services (ITS).
-msi-map being defined in the pcie endpoint device tree node.
-CONFIG_PCI_ENDPOINT_MSI_DOORBELL being enabled.
Add msi-map to the pcie3x4_ep device tree node.
With this, the pci endpoint kselftest doorbell test case passes:
# pci_endpoint_test -r pcie_ep_doorbell.DOORBELL_TEST
TAP version 13
1..1
# Starting 1 tests from 1 test cases.
# RUN pcie_ep_doorbell.DOORBELL_TEST ...
# OK pcie_ep_doorbell.DOORBELL_TEST
ok 1 pcie_ep_doorbell.DOORBELL_TEST
# PASSED: 1 / 1 tests passed.
Cc: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
---
| 1 +
1 file changed, 1 insertion(+)
--git a/arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi
index 90414486e466f..c0121aea791d7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-extra.dtsi
@@ -389,6 +389,7 @@ pcie3x4_ep: pcie-ep@fe150000 {
interrupt-names = "sys", "pmc", "msg", "legacy", "err",
"dma0", "dma1", "dma2", "dma3";
max-link-speed = <3>;
+ msi-map = <0x0000 &its1 0x0000 0x1000>;
num-lanes = <4>;
phys = <&pcie30phy>;
phy-names = "pcie-phy";
--
2.51.0
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next reply other threads:[~2025-09-08 19:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-08 16:24 Niklas Cassel [this message]
2025-09-08 21:26 ` [PATCH] arm64: dts: rockchip: rk3588: add msi-map for pcie3x4_ep Frank Li
2025-09-26 11:57 ` Niklas Cassel
2025-09-26 14:46 ` Frank Li
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