diff options
| author | Gustavo Pimentel <gustavo.pimentel@synopsys.com> | 2018-05-15 15:41:42 +0100 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-05-15 15:51:38 +0100 |
| commit | 1d906b22076e12cf6557cf4658defe82c0b5ff1f (patch) | |
| tree | b0f42753dd1629a368633fecf353d1645d1fcaee /include/linux/pci-epc.h | |
| parent | 467c7a7376421176ac248d93c65182847001cfbd (diff) | |
PCI: dwc: Add support for EP mode
The PCIe controller dual mode is capable of operating in Root Complex
(RC) mode as well as EP mode by configuration option.
Add EP support to the DesignWare driver on top of RC mode support.
Add new property on pci_epc structure which allow to configure
pci_epf_test driver accordingly to the controller specific requirements.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'include/linux/pci-epc.h')
| -rw-r--r-- | include/linux/pci-epc.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h index af657ca58b70..243eaa5a66ff 100644 --- a/include/linux/pci-epc.h +++ b/include/linux/pci-epc.h @@ -90,8 +90,16 @@ struct pci_epc { struct config_group *group; /* spinlock to protect against concurrent access of EP controller */ spinlock_t lock; + unsigned int features; }; +#define EPC_FEATURE_NO_LINKUP_NOTIFIER BIT(0) +#define EPC_FEATURE_BAR_MASK (BIT(1) | BIT(2) | BIT(3)) +#define EPC_FEATURE_SET_BAR(features, bar) \ + (features |= (EPC_FEATURE_BAR_MASK & (bar << 1))) +#define EPC_FEATURE_GET_BAR(features) \ + ((features & EPC_FEATURE_BAR_MASK) >> 1) + #define to_pci_epc(device) container_of((device), struct pci_epc, dev) #define pci_epc_create(dev, ops) \ |