Skip to content

[DM/PCI] Update PCI #10622

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
Rbb666 merged 4 commits into from
Aug 25, 2025
Merged

[DM/PCI] Update PCI #10622

Changes from 1 commit
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
b5cb585
[DM/PCI] Fixup the MSI info shuold free
GuEe-GUI Aug 20, 2025
faee3b3
[DM/PCI] Fixup the bus-range probe
GuEe-GUI Aug 20, 2025
2a2b469
[DM/PCI] Fixup the DWC PCI resource release
GuEe-GUI Aug 20, 2025
4d454af
[DM/PCI] Add SoC PCI Kconfig import
GuEe-GUI Aug 20, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 5 additions & 2 deletions components/drivers/pci/ofw.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -284,7 +284,7 @@ rt_err_t rt_pci_ofw_parse_ranges(struct rt_ofw_node *dev_np,
phy_addr_cells, phy_size_cells, cpu_addr_cells,
&host_bridge->dma_regions, &host_bridge->dma_regions_nr);

if (err != -RT_EEMPTY)
if (err && err != -RT_EEMPTY)
{
rt_free(host_bridge->bus_regions);
host_bridge->bus_regions_nr = 0;
Expand Down Expand Up @@ -314,7 +314,10 @@ rt_err_t rt_pci_ofw_host_bridge_init(struct rt_ofw_node *dev_np,

if (rt_ofw_prop_read_u32_array_index(dev_np, "bus-range", 0, 2, host_bridge->bus_range) < 0)
{
return -RT_EIO;
Copy link
Contributor

@Maihuanyi Maihuanyi Aug 25, 2025

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

这里不需要返回错误码了吗？

Copy link
Contributor Author

@GuEe-GUI GuEe-GUI Aug 25, 2025

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

按照别的平台的操作系统设备树规范来看，是允许在设备树未定义的情况下，设置总线范围默认值未 0~255，在实际树莓派 5 平台上也确实有这种情况，所以就不再返回错误，而是设定默认值。

host_bridge->bus_range[0] = 0x00;
host_bridge->bus_range[1] = 0xff;
LOG_I("%s: No \"%s\" found, using [%#02x, %#02x]", rt_ofw_node_full_name(dev_np), "bus-range",
host_bridge->bus_range[0], host_bridge->bus_range[1]);
}

propname = rt_ofw_get_prop_fuzzy_name(dev_np, ",pci-domain$");
Expand Down