From: Pali Rohár Date: Tue, 19 Oct 2021 09:05:01 +0000 (+0200) Subject: arm: a37xx: pci: Fix condition for CRS response X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=bd4064ff8a82460d6a497faf66ac5830ffe452b1;p=u-boot.git arm: a37xx: pci: Fix condition for CRS response As stated in comment above the code, CRS response can be returned to OS only for 4-byte PCI_VENDOR_ID config read request. So fix the code. Fixes: 1d7ad68559e2 ("arm: a37xx: pci: Handle propagation of CRSSVE bit from PCIe Root Port") Signed-off-by: Pali Rohár Reviewed-by: Stefan Roese --- diff --git a/drivers/pci/pci-aardvark.c b/drivers/pci/pci-aardvark.c index ade5ab056f..9e623b6e61 100644 --- a/drivers/pci/pci-aardvark.c +++ b/drivers/pci/pci-aardvark.c @@ -445,7 +445,7 @@ static int pcie_advk_read_config(const struct udevice *bus, pci_dev_t bdf, * for returning CRS, so that if U-Boot does support CRS in the future, * it will work for Aardvark. */ - allow_crs = pcie->cfgcrssve; + allow_crs = (offset == PCI_VENDOR_ID) && (size == PCI_SIZE_32) && pcie->cfgcrssve; if (advk_readl(pcie, PIO_START)) { dev_err(pcie->dev,