extern void pci_register_hose(struct pci_controller* hose);
extern struct pci_controller* pci_bus_to_hose(int bus);
extern struct pci_controller *find_hose_by_cfg_addr(void *cfg_addr);
+extern struct pci_controller *pci_get_hose_head(void);
extern int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev);
extern int pci_hose_scan(struct pci_controller *hose);
*
* @bus: Bus to read from
* @bdf: PCI device address: bus, device and function -see PCI_BDF()
+ * @offset: Register offset to read
* @valuep: Place to put the returned value
* @size: Access size
* @return 0 if OK, -ve on error
*
* @bus: Bus to write from
* @bdf: PCI device address: bus, device and function -see PCI_BDF()
+ * @offset: Register offset to write
* @value: Value to write
* @size: Access size
* @return 0 if OK, -ve on error
unsigned long value, enum pci_size_t size);
/**
+ * pci_bus_clrset_config32() - Update a configuration value for a device
+ *
+ * The register at @offset is updated to (oldvalue & ~clr) | set.
+ *
+ * @bus: Bus to access
+ * @bdf: PCI device address: bus, device and function -see PCI_BDF()
+ * @offset: Register offset to update
+ * @clr: Bits to clear
+ * @set: Bits to set
+ * @return 0 if OK, -ve on error
+ */
+int pci_bus_clrset_config32(struct udevice *bus, pci_dev_t bdf, int offset,
+ u32 clr, u32 set);
+
+/**
* Driver model PCI config access functions. Use these in preference to others
* when you have a valid device
*/
int dm_pci_write_config16(struct udevice *dev, int offset, u16 value);
int dm_pci_write_config32(struct udevice *dev, int offset, u32 value);
+/**
+ * These permit convenient read/modify/write on PCI configuration. The
+ * register is updated to (oldvalue & ~clr) | set.
+ */
+int dm_pci_clrset_config8(struct udevice *dev, int offset, u32 clr, u32 set);
+int dm_pci_clrset_config16(struct udevice *dev, int offset, u32 clr, u32 set);
+int dm_pci_clrset_config32(struct udevice *dev, int offset, u32 clr, u32 set);
+
/*
* The following functions provide access to the above without needing the
* size parameter. We are trying to encourage the use of the 8/16/32-style
#define dm_pci_mem_to_virt(dev, addr, len, map_flags) \
dm_pci_bus_to_virt((dev), (addr), PCI_REGION_MEM, (len), (map_flags))
#define dm_pci_virt_to_io(dev, addr) \
- dm_dm_pci_virt_to_bus((dev), (addr), PCI_REGION_IO)
+ dm_pci_virt_to_bus((dev), (addr), PCI_REGION_IO)
#define dm_pci_io_to_virt(dev, addr, len, map_flags) \
- dm_dm_pci_bus_to_virt((dev), (addr), PCI_REGION_IO, (len), (map_flags))
+ dm_pci_bus_to_virt((dev), (addr), PCI_REGION_IO, (len), (map_flags))
/**
* dm_pci_find_device() - find a device by vendor/device ID