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PCI: cadence: Add HPA architecture flag

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Add a boolean flag 'is_hpa' to the cdns_pcie structure to indicate that the
controller is part of a Heterogeneous Processor Architecture (HPA) system.
This flag will be used by subsequent patches to handle HPA-specific
register layouts and behaviors.

Signed-off-by: Hans Zhang <18255117159@163.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Tested-by: Aksh Garg <a-garg7@ti.com>
Link: https://patch.msgid.link/20260701073513.1101559-2-18255117159@163.com
This commit is contained in:
Hans Zhang 2026-07-01 15:35:10 +08:00 committed by Manivannan Sadhasivam
parent 93aac16f1e
commit b5672f9463
2 changed files with 3 additions and 0 deletions
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1
drivers/pci/controller/cadence/pci-sky1.c
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@ -174,6 +174,7 @@ static int sky1_pcie_probe(struct platform_device *pdev)
cdns_pcie->reg_base = pcie->reg_base;
cdns_pcie->msg_res = pcie->msg_res;
cdns_pcie->is_rc = true;
cdns_pcie->is_hpa = true;
reg_off = devm_kzalloc(dev, sizeof(*reg_off), GFP_KERNEL);
if (!reg_off) {

2
drivers/pci/controller/cadence/pcie-cadence.h
View File

@ -80,6 +80,7 @@ struct cdns_plat_pcie_of_data {
* @msg_res: Region for send message to map PCI accesses
* @dev: PCIe controller
* @is_rc: tell whether the PCIe controller mode is Root Complex or Endpoint.
* @is_hpa: indicates if the architecture is HPA
* @phy_count: number of supported PHY devices
* @phy: list of pointers to specific PHY control blocks
* @link: list of pointers to corresponding device link representations
@ -94,6 +95,7 @@ struct cdns_pcie {
struct resource *msg_res;
struct device *dev;
bool is_rc;
bool is_hpa;
int phy_count;
struct phy **phy;
struct device_link **link;