fdt: Added helper to set PCI dma-ranges property
Added fdt_pci_dma_ranges() that parses the pci_region info from the
struct pci_controller and populates the dma-ranges based on it.
The max # of windws/dma-ranges we support is 3 since on embedded
PowerPC based systems this is the max number of windows.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Fleming-AFLEMING <afleming@freescale.com>
diff --git a/include/fdt_support.h b/include/fdt_support.h
index 816c9d0..6062df9 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -65,6 +65,11 @@
static inline void fdt_fixup_crypto_node(void *blob, int sec_rev) {}
#endif
+#ifdef CONFIG_PCI
+#include <pci.h>
+int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose);
+#endif
+
#ifdef CONFIG_OF_BOARD_SETUP
void ft_board_setup(void *blob, bd_t *bd);
void ft_cpu_setup(void *blob, bd_t *bd);
