UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge branch 'remotes/lorenzo/pci/qcom' 

- Make sure PCIe is reset before init to work around QSDK U-Boot issue
  (Ansuel Smith)

- Set iproc affinity mask on MSI interrupts (Mark Tomlinson)

* remotes/lorenzo/pci/qcom:
  PCI: qcom: Make sure PCIe is reset before init for rev 2.1.0
This commit is contained in:
Bjorn Helgaas 2020-10-21 09:58:43 -05:00
parent be36e9b971 d3d4d028af
commit 3b35398220
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/pci/controller/dwc/pcie-qcom.c
View File

@ -297,6 +297,9 @@ static void qcom_pcie_deinit_2_1_0(struct qcom_pcie *pcie)
reset_control_assert(res->por_reset);
reset_control_assert(res->ext_reset);
reset_control_assert(res->phy_reset);
writel(1, pcie->parf + PCIE20_PARF_PHY_CTRL);
regulator_bulk_disable(ARRAY_SIZE(res->supplies), res->supplies);
}
@ -309,6 +312,16 @@ static int qcom_pcie_init_2_1_0(struct qcom_pcie *pcie)
u32 val;
int ret;
/* reset the PCIe interface as uboot can leave it undefined state */
reset_control_assert(res->pci_reset);
reset_control_assert(res->axi_reset);
reset_control_assert(res->ahb_reset);
reset_control_assert(res->por_reset);
reset_control_assert(res->ext_reset);
reset_control_assert(res->phy_reset);
writel(1, pcie->parf + PCIE20_PARF_PHY_CTRL);
ret = regulator_bulk_enable(ARRAY_SIZE(res->supplies), res->supplies);
if (ret < 0) {
dev_err(dev, "cannot enable regulators\n");