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Fri, 28 Mar 2025 07:30:46 -0700 (PDT) Received: from toaster.baylibre.com ([2a01:e0a:3c5:5fb1:70c0:edf6:6897:a3f8]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-39c0b79e0dcsm2789859f8f.64.2025.03.28.07.30.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Mar 2025 07:30:46 -0700 (PDT) From: Jerome Brunet Date: Fri, 28 Mar 2025 15:30:44 +0100 Subject: [PATCH] PCI: rcar-gen4: set ep BAR4 fixed size Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250328-rcar-gen4-bar4-v1-1-10bb6ce9ee7f@baylibre.com> X-B4-Tracking: v=1; b=H4sIAJOy5mcC/x3MPQqAMAxA4auUzAbsjyheRRxqm2qWKimIIL27x fEb3nuhkDAVmNULQjcXPnOD7hSEw+edkGMzmN4MvTUTSvCCO2WHmxeHMYSorRsT2QladAklfv7 hstb6AfDmTqdgAAAA X-Change-ID: 20250328-rcar-gen4-bar4-dccd1347fe38 To: Marek Vasut , Yoshihiro Shimoda , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Serge Semin Cc: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , linux-pci@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Yuya Hamamachi , Jerome Brunet X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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a=openpgp; fpr=F29F26CF27BAE1A9719AE6BDC3C92AAF3E60AED9 On rcar-gen4, the ep BAR4 has a fixed size of 256B. Document this constraint in the epc features of the platform. Fixes: e311b3834dfa ("PCI: rcar-gen4: Add endpoint mode support") Signed-off-by: Jerome Brunet --- This was tested on rcar-gen4 r8a779f0-spider device. --- drivers/pci/controller/dwc/pcie-rcar-gen4.c | 1 + 1 file changed, 1 insertion(+) --- base-commit: dea140198b846f7432d78566b7b0b83979c72c2b change-id: 20250328-rcar-gen4-bar4-dccd1347fe38 Best regards, diff --git a/drivers/pci/controller/dwc/pcie-rcar-gen4.c b/drivers/pci/controller/dwc/pcie-rcar-gen4.c index fc872dd35029c083da58144dce23cd1ce80f9374..02638ec442e7012d61dfad70016077d9becf56a6 100644 --- a/drivers/pci/controller/dwc/pcie-rcar-gen4.c +++ b/drivers/pci/controller/dwc/pcie-rcar-gen4.c @@ -403,6 +403,7 @@ static const struct pci_epc_features rcar_gen4_pcie_epc_features = { .msix_capable = false, .bar[BAR_1] = { .type = BAR_RESERVED, }, .bar[BAR_3] = { .type = BAR_RESERVED, }, + .bar[BAR_4] = { .type = BAR_FIXED, .fixed_size = 256 }, .bar[BAR_5] = { .type = BAR_RESERVED, }, .align = SZ_1M, };