From: Vidya Sagar <vidyas@nvidia.com>
To: <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
<thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
<mperttunen@nvidia.com>
Cc: <devicetree@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <kthota@nvidia.com>,
<mmaddireddy@nvidia.com>, <vidyas@nvidia.com>,
<sagar.tv@gmail.com>
Subject: [PATCH V1 1/2] dt-bindings: PCI: tegra234: Add ECAM support
Date: Thu, 27 Oct 2022 10:42:13 +0530 [thread overview]
Message-ID: <20221027051214.22003-2-vidyas@nvidia.com> (raw)
In-Reply-To: <20221027051214.22003-1-vidyas@nvidia.com>
Add support for ECAM aperture for Tegra234.
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
---
.../devicetree/bindings/pci/nvidia,tegra194-pcie.yaml | 10 ++++++++--
.../devicetree/bindings/pci/snps,dw-pcie.yaml | 2 +-
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
index 75da3e8eecb9..15cc2d2055bb 100644
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
@@ -27,6 +27,7 @@ properties:
- nvidia,tegra234-pcie
reg:
+ minItems: 4
items:
- description: controller's application logic registers
- description: configuration registers
@@ -35,13 +36,17 @@ properties:
available for software access.
- description: aperture where the Root Port's own configuration
registers are available.
+ - description: aperture to access the configuration space through ECAM.
+ This is applicable only for Tegra234.
reg-names:
+ minItems: 4
items:
- const: appl
- const: config
- const: atu_dma
- const: dbi
+ - const: ecam
interrupts:
items:
@@ -305,8 +310,9 @@ examples:
reg = <0x00 0x14160000 0x0 0x00020000>, /* appl registers (128K) */
<0x00 0x36000000 0x0 0x00040000>, /* configuration space (256K) */
<0x00 0x36040000 0x0 0x00040000>, /* iATU_DMA reg space (256K) */
- <0x00 0x36080000 0x0 0x00040000>; /* DBI reg space (256K) */
- reg-names = "appl", "config", "atu_dma", "dbi";
+ <0x00 0x36080000 0x0 0x00040000>, /* DBI reg space (256K) */
+ <0x24 0x30000000 0x0 0x10000000>; /* ECAM (256MB) */
+ reg-names = "appl", "config", "atu_dma", "dbi", "ecam";
#address-cells = <3>;
#size-cells = <2>;
diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
index 7287d395e1b6..7e0b015f1414 100644
--- a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
@@ -35,7 +35,7 @@ properties:
maxItems: 5
items:
enum: [ dbi, dbi2, config, atu, atu_dma, app, appl, elbi, mgmt, ctrl,
- parf, cfg, link, ulreg, smu, mpu, apb, phy ]
+ parf, cfg, link, ulreg, smu, mpu, apb, phy, ecam ]
num-lanes:
description: |
--
2.17.1
next prev parent reply other threads:[~2022-10-27 5:12 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-27 5:12 [PATCH V1 0/2] Add ECAM aperture for Tegra234 Vidya Sagar
2022-10-27 5:12 ` Vidya Sagar [this message]
2022-10-27 21:18 ` [PATCH V1 1/2] dt-bindings: PCI: tegra234: Add ECAM support Krzysztof Kozlowski
2022-10-28 12:09 ` Vidya Sagar
2022-10-28 12:47 ` Krzysztof Kozlowski
2022-10-31 16:33 ` Rob Herring
2022-10-31 16:42 ` Vidya Sagar
2022-10-27 5:12 ` [PATCH V1 2/2] arm64: tegra: Add ECAM aperture info for all the PCIe controllers Vidya Sagar
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