diff options
| author | Pali Rohár <[email protected]> | 2021-11-30 18:29:05 +0100 |
|---|---|---|
| committer | Lorenzo Pieralisi <[email protected]> | 2021-12-02 09:55:48 +0000 |
| commit | 1d3e170344dff2cef8827db6c09909b78cbc11d7 (patch) | |
| tree | 7a79e339a1b821d5ba74fbc1870313a74221146d | |
| parent | 8ea673a8b30b4a32516b8adabb15e2a68ff02ec8 (diff) | |
PCI: aardvark: Add support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 registers on emulated bridge
PCI aardvark hardware supports access to DEVCAP2, DEVCTL2, LNKCAP2 and
LNKCTL2 configuration registers of PCIe core via PCIE_CORE_PCIEXP_CAP.
Export them via emulated software root bridge.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Pali Rohár <[email protected]>
Signed-off-by: Marek Behún <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
| -rw-r--r-- | drivers/pci/controller/pci-aardvark.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index c5300d49807a..25af189a1052 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -884,8 +884,13 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge, case PCI_CAP_LIST_ID: case PCI_EXP_DEVCAP: case PCI_EXP_DEVCTL: + case PCI_EXP_DEVCAP2: + case PCI_EXP_DEVCTL2: + case PCI_EXP_LNKCAP2: + case PCI_EXP_LNKCTL2: *value = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + reg); return PCI_BRIDGE_EMUL_HANDLED; + default: return PCI_BRIDGE_EMUL_NOT_HANDLED; } @@ -899,10 +904,6 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge, struct advk_pcie *pcie = bridge->data; switch (reg) { - case PCI_EXP_DEVCTL: - advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg); - break; - case PCI_EXP_LNKCTL: advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg); if (new & PCI_EXP_LNKCTL_RL) @@ -924,6 +925,12 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge, advk_writel(pcie, new, PCIE_ISR0_REG); break; + case PCI_EXP_DEVCTL: + case PCI_EXP_DEVCTL2: + case PCI_EXP_LNKCTL2: + advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg); + break; + default: break; } |