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Wed, 05 Feb 2025 11:12:36 -0800 (PST) Received: from stbsrv-and-02.and.broadcom.net ([192.19.144.250]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-72fe69ceb1csm12670842b3a.151.2025.02.05.11.12.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Feb 2025 11:12:36 -0800 (PST) From: Jim Quinlan To: linux-pci@vger.kernel.org, Nicolas Saenz Julienne , Bjorn Helgaas , Lorenzo Pieralisi , Cyril Brulebois , Stanimir Varbanov , bcm-kernel-feedback-list@broadcom.com, jim2101024@gmail.com, james.quinlan@broadcom.com Cc: Florian Fainelli , Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , linux-rpi-kernel@lists.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE), linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v1 4/6] PCI: brcmstb: Use same constant table for config space access Date: Wed, 5 Feb 2025 14:12:04 -0500 Message-ID: <20250205191213.29202-5-james.quinlan@broadcom.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250205191213.29202-1-james.quinlan@broadcom.com> References: <20250205191213.29202-1-james.quinlan@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The constants EXT_CFG_DATA and EXT_CFG_INDEX vary by SOC. One of the map_bus methods used these constants, the other used different constants. Fortunately there was no problem because the SoCs that used the latter map_bus method all had the same register constants. Remove the redundant constants and adjust the code to use them. In addition, update EXT_CFG_DATA to use the 4k-page based config space access system, which is what the second map_bus method was already using. Signed-off-by: Jim Quinlan --- drivers/pci/controller/pcie-brcmstb.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller= /pcie-brcmstb.c index 4f5d751cbdd7..2d1969d7fd30 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -151,9 +151,6 @@ #define MSI_INT_MASK_SET 0x10 #define MSI_INT_MASK_CLR 0x14 =20 -#define PCIE_EXT_CFG_DATA 0x8000 -#define PCIE_EXT_CFG_INDEX 0x9000 - #define PCIE_RGR1_SW_INIT_1_PERST_MASK 0x1 #define PCIE_RGR1_SW_INIT_1_PERST_SHIFT 0x0 =20 @@ -728,8 +725,8 @@ static void __iomem *brcm_pcie_map_bus(struct pci_bus *= bus, =20 /* For devices, write to the config space index register */ idx =3D PCIE_ECAM_OFFSET(bus->number, devfn, 0); - writel(idx, pcie->base + PCIE_EXT_CFG_INDEX); - return base + PCIE_EXT_CFG_DATA + PCIE_ECAM_REG(where); + writel(idx, base + IDX_ADDR(pcie)); + return base + DATA_ADDR(pcie) + PCIE_ECAM_REG(where); } =20 static void __iomem *brcm7425_pcie_map_bus(struct pci_bus *bus, @@ -1712,7 +1709,7 @@ static void brcm_pcie_remove(struct platform_device *= pdev) static const int pcie_offsets[] =3D { [RGR1_SW_INIT_1] =3D 0x9210, [EXT_CFG_INDEX] =3D 0x9000, - [EXT_CFG_DATA] =3D 0x9004, + [EXT_CFG_DATA] =3D 0x8000, [PCIE_HARD_DEBUG] =3D 0x4204, [PCIE_INTR2_CPU_BASE] =3D 0x4300, }; @@ -1720,7 +1717,7 @@ static const int pcie_offsets[] =3D { static const int pcie_offsets_bcm7278[] =3D { [RGR1_SW_INIT_1] =3D 0xc010, [EXT_CFG_INDEX] =3D 0x9000, - [EXT_CFG_DATA] =3D 0x9004, + [EXT_CFG_DATA] =3D 0x8000, [PCIE_HARD_DEBUG] =3D 0x4204, [PCIE_INTR2_CPU_BASE] =3D 0x4300, }; @@ -1734,8 +1731,9 @@ static const int pcie_offsets_bcm7425[] =3D { }; =20 static const int pcie_offsets_bcm7712[] =3D { + [RGR1_SW_INIT_1] =3D 0x9210, [EXT_CFG_INDEX] =3D 0x9000, - [EXT_CFG_DATA] =3D 0x9004, + [EXT_CFG_DATA] =3D 0x8000, [PCIE_HARD_DEBUG] =3D 0x4304, [PCIE_INTR2_CPU_BASE] =3D 0x4400, }; --=20 2.43.0