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From:   Achal Verma <a-verma1@ti.com>
To:     Bjorn Helgaas <bhelgaas@google.com>,
        Lorenzo Pieralisi <lpieralisi@kernel.org>,
        Krzysztof Wilczy_ski <kw@linux.com>,
        Rob Herring <robh@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Dhananjay Vilasrao Kangude <dkangude@cadence.com>,
        Anindita Das <dasa@cadence.com>,
        Yuan Zhao <yuanzhao@cadence.com>,
        Milind Parab <mparab@cadence.com>
CC:     <linux-pci@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        Achal Verma <a-verma1@ti.com>
Subject: [PATCH v12 5/5] PCI: j721e: add j784s4 PCIe configuration
Date:   Sat, 1 Apr 2023 16:56:33 +0530
Message-ID: <20230401112633.2406604-6-a-verma1@ti.com>
In-Reply-To: <20230401112633.2406604-1-a-verma1@ti.com>
References: <20230401112633.2406604-1-a-verma1@ti.com>
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From: Matt Ranostay <mranostay@ti.com>

Add PCIe configuration for j784s4 platform which has 4x lane support.

Tested-by: Achal Verma <a-verma1@ti.com>
Signed-off-by: Matt Ranostay <mranostay@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Achal Verma <a-verma1@ti.com>
---
 drivers/pci/controller/cadence/pci-j721e.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/pci/controller/cadence/pci-j721e.c b/drivers/pci/controller/cadence/pci-j721e.c
index 58dcac9021e4..cce7b391f931 100644
--- a/drivers/pci/controller/cadence/pci-j721e.c
+++ b/drivers/pci/controller/cadence/pci-j721e.c
@@ -330,6 +330,20 @@ static const struct j721e_pcie_data am64_pcie_ep_data = {
 	.max_lanes = 1,
 };
 
+static const struct j721e_pcie_data j784s4_pcie_rc_data = {
+	.mode = PCI_MODE_RC,
+	.quirk_retrain_flag = true,
+	.byte_access_allowed = false,
+	.linkdown_irq_regfield = LINK_DOWN,
+	.max_lanes = 4,
+};
+
+static const struct j721e_pcie_data j784s4_pcie_ep_data = {
+	.mode = PCI_MODE_EP,
+	.linkdown_irq_regfield = LINK_DOWN,
+	.max_lanes = 4,
+};
+
 static const struct of_device_id of_j721e_pcie_match[] = {
 	{
 		.compatible = "ti,j721e-pcie-host",
@@ -355,6 +369,14 @@ static const struct of_device_id of_j721e_pcie_match[] = {
 		.compatible = "ti,am64-pcie-ep",
 		.data = &am64_pcie_ep_data,
 	},
+	{
+		.compatible = "ti,j784s4-pcie-host",
+		.data = &j784s4_pcie_rc_data,
+	},
+	{
+		.compatible = "ti,j784s4-pcie-ep",
+		.data = &j784s4_pcie_ep_data,
+	},
 	{},
 };
 
-- 
2.25.1