X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Ffdtdec.h;h=abfd678424b5521d7cf941f1542b4dacef163cbd;hb=746667f1e56bf08d03e66a178df3c4f4f6c806e1;hp=856e6cf766dea73ac3de4e009391052a891fd9e8;hpb=772e173802627a1917a3f5878ad4b9b920089a33;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/fdtdec.h b/include/fdtdec.h
index 856e6cf..abfd678 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -40,6 +40,27 @@ struct fdt_memory {
 	fdt_addr_t end;
 };
 
+/*
+ * Information about a resource. start is the first address of the resource
+ * and end is the last address (inclusive). The length of the resource will
+ * be equal to: end - start + 1.
+ */
+struct fdt_resource {
+	fdt_addr_t start;
+	fdt_addr_t end;
+};
+
+/**
+ * Compute the size of a resource.
+ *
+ * @param res	the resource to operate on
+ * @return the size of the resource
+ */
+static inline fdt_size_t fdt_resource_size(const struct fdt_resource *res)
+{
+	return res->end - res->start + 1;
+}
+
 /**
  * Compat types that we know about and for which we might have drivers.
  * Each is named COMPAT_<dir>_<filename> where <dir> is the directory
@@ -94,6 +115,11 @@ enum fdt_compat_id {
 	COMPAT_SANDBOX_LCD_SDL,		/* Sandbox LCD emulation with SDL */
 	COMPAT_TI_TPS65090,		/* Texas Instrument TPS65090 */
 	COMPAT_NXP_PTN3460,		/* NXP PTN3460 DP/LVDS bridge */
+	COMPAT_SAMSUNG_EXYNOS_SYSMMU,	/* Exynos sysmmu */
+	COMPAT_PARADE_PS8625,		/* Parade PS8622 EDP->LVDS bridge */
+	COMPAT_INTEL_LPC,		/* Intel Low Pin Count I/F */
+	COMPAT_INTEL_MICROCODE,		/* Intel microcode update */
+	COMPAT_MEMORY_SPD,		/* Memory SPD information */
 
 	COMPAT_COUNT,
 };
@@ -374,6 +400,18 @@ int fdtdec_get_alias_seq(const void *blob, const char *base, int node,
  */
 int fdtdec_get_alias_node(const void *blob, const char *name);
 
+/**
+ * Get the offset of the given chosen node
+ *
+ * This looks up a property in /chosen containing the path to another node,
+ * then finds the offset of that node.
+ *
+ * @param blob		Device tree blob (if NULL, then error is returned)
+ * @param name		Property name, e.g. "stdout-path"
+ * @return Node offset referred to by that chosen node, or -ve FDT_ERR_...
+ */
+int fdtdec_get_chosen_node(const void *blob, const char *name);
+
 /*
  * Get the name for a compatible ID
  *
@@ -409,6 +447,22 @@ int fdtdec_get_int_array(const void *blob, int node, const char *prop_name,
 		u32 *array, int count);
 
 /**
+ * Look up a property in a node and return its contents in an integer
+ * array of given length. The property must exist but may have less data that
+ * expected (4*count bytes). It may have more, but this will be ignored.
+ *
+ * @param blob		FDT blob
+ * @param node		node to examine
+ * @param prop_name	name of property to find
+ * @param array		array to fill with data
+ * @param count		number of array elements
+ * @return number of array elements if ok, or -FDT_ERR_NOTFOUND if the
+ *		property is not found
+ */
+int fdtdec_get_int_array_count(const void *blob, int node,
+			       const char *prop_name, u32 *array, int count);
+
+/**
  * Look up a property in a node and return a pointer to its contents as a
  * unsigned int array of given length. The property must have at least enough
  * data for the array ('count' cells). It may have more, but this will be
@@ -583,4 +637,46 @@ struct fmap_entry {
  */
 int fdtdec_read_fmap_entry(const void *blob, int node, const char *name,
 			   struct fmap_entry *entry);
+
+/**
+ * Obtain an indexed resource from a device property.
+ *
+ * @param fdt		FDT blob
+ * @param node		node to examine
+ * @param property	name of the property to parse
+ * @param index		index of the resource to retrieve
+ * @param res		returns the resource
+ * @return 0 if ok, negative on error
+ */
+int fdt_get_resource(const void *fdt, int node, const char *property,
+		     unsigned int index, struct fdt_resource *res);
+
+/**
+ * Obtain a named resource from a device property.
+ *
+ * Look up the index of the name in a list of strings and return the resource
+ * at that index.
+ *
+ * @param fdt		FDT blob
+ * @param node		node to examine
+ * @param property	name of the property to parse
+ * @param prop_names	name of the property containing the list of names
+ * @param name		the name of the entry to look up
+ * @param res		returns the resource
+ */
+int fdt_get_named_resource(const void *fdt, int node, const char *property,
+			   const char *prop_names, const char *name,
+			   struct fdt_resource *res);
+
+/**
+ * Look at the reg property of a device node that represents a PCI device
+ * and parse the bus, device and function number from it.
+ *
+ * @param fdt		FDT blob
+ * @param node		node to examine
+ * @param bdf		returns bus, device, function triplet
+ * @return 0 if ok, negative on error
+ */
+int fdtdec_pci_get_bdf(const void *fdt, int node, int *bdf);
+
 #endif