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From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org,
	bhelgaas@google.com, krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org, jingoohan1@gmail.com,
	gustavo.pimentel@synopsys.com, mani@kernel.org
Cc: marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org,
	devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Subject: [PATCH 3/6] PCI: dwc: Add PCIE_PORT_{FORCE,LANE_SKEW} macros
Date: Thu, 29 Feb 2024 21:07:16 +0900	[thread overview]
Message-ID: <20240229120719.2553638-4-yoshihiro.shimoda.uh@renesas.com> (raw)
In-Reply-To: <20240229120719.2553638-1-yoshihiro.shimoda.uh@renesas.com>

R-Car Gen4 PCIe controller needs to use the Synopsys-specific PCIe
configuration registers. So, add the macros.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
 drivers/pci/controller/dwc/pcie-designware.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 26dae4837462..aa4db6eaf02a 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -71,6 +71,9 @@
 #define LINK_WAIT_IATU			9
 
 /* Synopsys-specific PCIe configuration registers */
+#define PCIE_PORT_FORCE			0x708
+#define PORT_FORCE_DO_DESKEW_FOR_SRIS	BIT(23)
+
 #define PCIE_PORT_AFR			0x70C
 #define PORT_AFR_N_FTS_MASK		GENMASK(15, 8)
 #define PORT_AFR_N_FTS(n)		FIELD_PREP(PORT_AFR_N_FTS_MASK, n)
@@ -92,6 +95,9 @@
 #define PORT_LINK_MODE_4_LANES		PORT_LINK_MODE(0x7)
 #define PORT_LINK_MODE_8_LANES		PORT_LINK_MODE(0xf)
 
+#define PCIE_PORT_LANE_SKEW		0x714
+#define PORT_LANE_SKEW_INSERT_MASK	GENMASK(23, 0)
+
 #define PCIE_PORT_DEBUG0		0x728
 #define PORT_LOGIC_LTSSM_STATE_MASK	0x1f
 #define PORT_LOGIC_LTSSM_STATE_L0	0x11
-- 
2.25.1


  parent reply	other threads:[~2024-02-29 12:07 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-29 12:07 [PATCH 0/6] PCI: dwc: rcar-gen4: Add R-Car V4H support Yoshihiro Shimoda
2024-02-29 12:07 ` [PATCH 1/6] dt-bindings: PCI: rcar-gen4-pci-host: Add R-Car V4H compatible Yoshihiro Shimoda
2024-02-29 17:38   ` Conor Dooley
2024-03-14 13:39   ` Geert Uytterhoeven
2024-02-29 12:07 ` [PATCH 2/6] dt-bindings: PCI: rcar-gen4-pci-ep: " Yoshihiro Shimoda
2024-02-29 17:39   ` Conor Dooley
2024-03-14 13:39   ` Geert Uytterhoeven
2024-02-29 12:07 ` Yoshihiro Shimoda [this message]
2024-02-29 12:07 ` [PATCH 4/6] PCI: dwc: rcar-gen4: Add a new function pointer for other SoC support Yoshihiro Shimoda
2024-02-29 12:07 ` [PATCH 5/6] PCI: dwc: rcar-gen4: Add support for other R-Car Gen4 PCIe controller Yoshihiro Shimoda
2024-02-29 12:07 ` [PATCH 6/6] misc: pci_endpoint_test: Add Device ID for R-Car V4H " Yoshihiro Shimoda
2024-02-29 13:07   ` Geert Uytterhoeven

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