Merge https://gitlab.denx.de/u-boot/custodians/u-boot-spi

[oweals/u-boot.git] / include / pci.h

diff --git a/include/pci.h b/include/pci.h
index 40e3c3fc6f9c6b0032b0daa00bcacee9a3567001..19c9244b9459bad06d9ce61d4bccb33487c28a69 100644 (file)
--- a/include/pci.h
+++ b/include/pci.h
@@ -488,8 +488,8 @@
 typedef u64 pci_addr_t;
 typedef u64 pci_size_t;
 #else
-typedef u32 pci_addr_t;
-typedef u32 pci_size_t;
+typedef unsigned long pci_addr_t;
+typedef unsigned long pci_size_t;
 #endif
 
 struct pci_region {
@@ -531,7 +531,7 @@ typedef int pci_dev_t;
  * This is relevant for the following macros:
  * PCI_DEV, PCI_FUNC, PCI_DEVFN
  * The U-Boot macro PCI_DEV is equivalent to the Linux PCI_SLOT version with
- * the remark from above (input d in bits 15-8 instead of 7-0.
+ * the remark from above (input is in bits 15-8 instead of 7-0.
  */
 #define PCI_DEV(d)             (((d) >> 11) & 0x1f)
 #define PCI_FUNC(d)            (((d) >> 8) & 0x7)
@@ -543,6 +543,9 @@ typedef int pci_dev_t;
 #define PCI_VENDEV(v, d)       (((v) << 16) | (d))
 #define PCI_ANY_ID             (~0)
 
+/* Convert from Linux format to U-Boot format */
+#define PCI_TO_BDF(val)                ((val) << 8)
+
 struct pci_device_id {
        unsigned int vendor, device;    /* Vendor and device ID or PCI_ANY_ID */
        unsigned int subvendor, subdevice; /* Subsystem ID's or PCI_ANY_ID */
@@ -924,7 +927,7 @@ struct dm_pci_ops {
  * @dev:       Device to check
  * @return bus/device/function value (see PCI_BDF())
  */
-pci_dev_t dm_pci_get_bdf(struct udevice *dev);
+pci_dev_t dm_pci_get_bdf(const struct udevice *dev);
 
 /**
  * pci_bind_bus_devices() - scan a PCI bus and bind devices
@@ -1067,7 +1070,7 @@ int dm_pci_hose_probe_bus(struct udevice *bus);
  * @size:      Access size
  * @return 0 if OK, -ve on error
  */
-int pci_bus_read_config(struct udevice *bus, pci_dev_t bdf, int offset,
+int pci_bus_read_config(const struct udevice *bus, pci_dev_t bdf, int offset,
                        unsigned long *valuep, enum pci_size_t size);
 
 /**
@@ -1102,12 +1105,12 @@ int pci_bus_clrset_config32(struct udevice *bus, pci_dev_t bdf, int offset,
  * Driver model PCI config access functions. Use these in preference to others
  * when you have a valid device
  */
-int dm_pci_read_config(struct udevice *dev, int offset, unsigned long *valuep,
-                      enum pci_size_t size);
+int dm_pci_read_config(const struct udevice *dev, int offset,
+                      unsigned long *valuep, enum pci_size_t size);
 
-int dm_pci_read_config8(struct udevice *dev, int offset, u8 *valuep);
-int dm_pci_read_config16(struct udevice *dev, int offset, u16 *valuep);
-int dm_pci_read_config32(struct udevice *dev, int offset, u32 *valuep);
+int dm_pci_read_config8(const struct udevice *dev, int offset, u8 *valuep);
+int dm_pci_read_config16(const struct udevice *dev, int offset, u16 *valuep);
+int dm_pci_read_config32(const struct udevice *dev, int offset, u32 *valuep);
 
 int dm_pci_write_config(struct udevice *dev, int offset, unsigned long value,
                        enum pci_size_t size);
@@ -1313,7 +1316,7 @@ void dm_pci_write_bar32(struct udevice *dev, int barnum, u32 addr);
  * @barnum:    Bar number to read (numbered from 0)
  * @return: value of BAR
  */
-u32 dm_pci_read_bar32(struct udevice *dev, int barnum);
+u32 dm_pci_read_bar32(const struct udevice *dev, int barnum);
 
 /**
  * dm_pci_bus_to_phys() - convert a PCI bus address to a physical address