Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge branch 'pci/controller/dwc-rockchip'
- Disable unused BAR 0 and BAR 1 for Root Port (Shawn Lin)
* pci/controller/dwc-rockchip:
PCI: dw-rockchip: Disable BAR 0 and BAR 1 for Root Port
+8
+8
drivers/pci/controller/dwc/pcie-dw-rockchip.c
+8
drivers/pci/controller/dwc/pcie-dw-rockchip.c
···
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#define PCIE_LINKUP_MASK GENMASK(17, 16)
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#define PCIE_LTSSM_STATUS_MASK GENMASK(5, 0)
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+
#define PCIE_TYPE0_HDR_DBI2_OFFSET 0x100000
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struct rockchip_pcie {
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struct dw_pcie pci;
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void __iomem *apb_base;
···
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if (irq < 0)
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return irq;
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+
pci->dbi_base2 = pci->dbi_base + PCIE_TYPE0_HDR_DBI2_OFFSET;
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+
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ret = rockchip_pcie_init_irq_domain(rockchip);
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if (ret < 0)
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dev_err(dev, "failed to init irq domain\n");
···
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rockchip_pcie_configure_l1ss(pci);
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rockchip_pcie_enable_l0s(pci);
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+
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/* Disable Root Ports BAR0 and BAR1 as they report bogus size */
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dw_pcie_writel_dbi2(pci, PCI_BASE_ADDRESS_0, 0x0);
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dw_pcie_writel_dbi2(pci, PCI_BASE_ADDRESS_1, 0x0);
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return 0;
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}