1 files changed, 48 insertions, 0 deletions
diff --git a/arch/sandbox/include/asm/u-boot-sandbox.h b/arch/sandbox/include/asm/u-boot-sandbox.h
index 770ab5c..d5b9361 100644
--- a/arch/sandbox/include/asm/u-boot-sandbox.h
+++ b/arch/sandbox/include/asm/u-boot-sandbox.h
@@ -27,4 +27,52 @@ int cleanup_before_linux(void);
 /* drivers/video/sandbox_sdl.c */
 int sandbox_lcd_sdl_early_init(void);
 
+/**
+ * pci_map_physmem() - map a PCI device into memory
+ *
+ * This is used on sandbox to map a device into memory so that it can be
+ * used with normal memory access. After this call, some part of the device's
+ * internal structure becomes visible.
+ *
+ * This function is normally called from sandbox's map_sysmem() automatically.
+ *
+ * @paddr:	Physical memory address, normally corresponding to a PCI BAR
+ * @lenp:	On entry, the size of the area to map, On exit it is updated
+ *		to the size actually mapped, which may be less if the device
+ *		has less space
+ * @devp:	Returns the device which mapped into this space
+ * @ptrp:	Returns a pointer to the mapped address. The device's space
+ *		can be accessed as @lenp bytes starting here
+ * @return 0 if OK, -ve on error
+ */
+int pci_map_physmem(phys_addr_t paddr, unsigned long *lenp,
+		    struct udevice **devp, void **ptrp);
+
+/**
+ * pci_unmap_physmem() - undo a memory mapping
+ *
+ * This must be called after pci_map_physmem() to undo the mapping.
+ *
+ * @paddr:	Physical memory address, as passed to pci_map_physmem()
+ * @len:	Size of area mapped, as returned by pci_map_physmem()
+ * @dev:	Device to unmap, as returned by pci_map_physmem()
+ * @return 0 if OK, -ve on error
+ */
+int pci_unmap_physmem(const void *addr, unsigned long len,
+		      struct udevice *dev);
+
+/**
+ * sandbox_set_enable_pci_map() - Enable / disable PCI address mapping
+ *
+ * Since address mapping involves calling every driver, provide a way to
+ * enable and disable this. It can be handled automatically by the emulator
+ * uclass, which knows if any emulators are currently active.
+ *
+ * If this is disabled, pci_map_physmem() will not be called from
+ * map_sysmem().
+ *
+ * @enable: 0 to disable, 1 to enable
+ */
+void sandbox_set_enable_pci_map(int enable);
+
 #endif	/* _U_BOOT_SANDBOX_H_ */