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Merge tag 'pci-v5.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

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Pull PCI fix from Bjorn Helgaas:
 "Fix rockchip outbound ATU issue that prevented Google Kevin
  Chromebooks from booting (Enric Balletbo i Serra)"

* tag 'pci-v5.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: rockchip: Fix IO outbound ATU register number
This commit is contained in:
Linus Torvalds
2019-12-13 14:52:03 -08:00
parent 3b2ee614cb ca01e79874
commit 1d76c0792a
1 changed files with 3 additions and 1 deletions
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4
drivers/pci/controller/pcie-rockchip-host.c
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@@ -834,10 +834,12 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip)
if (!entry) if (!entry)
return -ENODEV; return -ENODEV;
/* store the register number offset to program RC io outbound ATU */
offset = size >> 20;
size = resource_size(entry->res); size = resource_size(entry->res);
pci_addr = entry->res->start - entry->offset; pci_addr = entry->res->start - entry->offset;
offset = size >> 20;
for (reg_no = 0; reg_no < (size >> 20); reg_no++) { for (reg_no = 0; reg_no < (size >> 20); reg_no++) {
err = rockchip_pcie_prog_ob_atu(rockchip, err = rockchip_pcie_prog_ob_atu(rockchip,
reg_no + 1 + offset, reg_no + 1 + offset,