diff options
| author | Ray Jui <rjui@broadcom.com> | 2015-10-16 08:18:24 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-10-16 08:18:24 -0500 |
| commit | e99a187b5c5f60fe55ca586f82ac1a3557fb166a (patch) | |
| tree | 2da61f1c9e854b6f1eebadb3a74dc1a1429ce333 /drivers/pci/host/pcie-iproc-platform.c | |
| parent | 8d0afa1a93be2da954c85392bbc7b2264c9d241c (diff) | |
| download | lwn-e99a187b5c5f60fe55ca586f82ac1a3557fb166a.tar.gz lwn-e99a187b5c5f60fe55ca586f82ac1a3557fb166a.zip | |
PCI: iproc: Add outbound mapping support
Certain SoCs require the PCIe outbound mapping to be configured in
software. Add support for those chips.
[jonmason: Use %pap format when printing size_t to avoid warnings in 32-bit
build.]
[arnd: Use div64_u64() instead of "%" to avoid __aeabi_uldivmod link error
in 32-bit build.]
Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Jon Mason <jonmason@broadcom.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/host/pcie-iproc-platform.c')
| -rw-r--r-- | drivers/pci/host/pcie-iproc-platform.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/pci/host/pcie-iproc-platform.c b/drivers/pci/host/pcie-iproc-platform.c index 9aedc8eb2c6e..c9550dc8b8ed 100644 --- a/drivers/pci/host/pcie-iproc-platform.c +++ b/drivers/pci/host/pcie-iproc-platform.c @@ -54,6 +54,33 @@ static int iproc_pcie_pltfm_probe(struct platform_device *pdev) return -ENOMEM; } + if (of_property_read_bool(np, "brcm,pcie-ob")) { + u32 val; + + ret = of_property_read_u32(np, "brcm,pcie-ob-axi-offset", + &val); + if (ret) { + dev_err(pcie->dev, + "missing brcm,pcie-ob-axi-offset property\n"); + return ret; + } + pcie->ob.axi_offset = val; + + ret = of_property_read_u32(np, "brcm,pcie-ob-window-size", + &val); + if (ret) { + dev_err(pcie->dev, + "missing brcm,pcie-ob-window-size property\n"); + return ret; + } + pcie->ob.window_size = (resource_size_t)val * SZ_1M; + + if (of_property_read_bool(np, "brcm,pcie-ob-oarr-size")) + pcie->ob.set_oarr_size = true; + + pcie->need_ob_cfg = true; + } + /* PHY use is optional */ pcie->phy = devm_phy_get(&pdev->dev, "pcie-phy"); if (IS_ERR(pcie->phy)) { |