Merge branch 'master' of git://git.denx.de/u-boot-video

[karo-tx-uboot.git] / include / fdtdec.h

diff --git a/include/fdtdec.h b/include/fdtdec.h
index 84f07685268906387cdc3fb8cfd113282faf37b3..0b140752ffb058c4fa673b10fe6a3ff6e751aab8 100644 (file)
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -19,6 +19,8 @@
  * MA 02111-1307 USA
  */
 
+#ifndef __fdtdec_h
+#define __fdtdec_h
 
 /*
  * This file contains convenience functions for decoding useful and
@@ -57,9 +59,13 @@ struct fdt_memory {
  */
 enum fdt_compat_id {
        COMPAT_UNKNOWN,
-       COMPAT_NVIDIA_TEGRA20_USB,      /* Tegra2 USB port */
-       COMPAT_NVIDIA_TEGRA20_I2C,      /* Tegra2 i2c */
-       COMPAT_NVIDIA_TEGRA20_DVC,      /* Tegra2 dvc (really just i2c) */
+       COMPAT_NVIDIA_TEGRA20_USB,      /* Tegra20 USB port */
+       COMPAT_NVIDIA_TEGRA20_I2C,      /* Tegra20 i2c */
+       COMPAT_NVIDIA_TEGRA20_DVC,      /* Tegra20 dvc (really just i2c) */
+       COMPAT_NVIDIA_TEGRA20_EMC,      /* Tegra20 memory controller */
+       COMPAT_NVIDIA_TEGRA20_EMC_TABLE, /* Tegra20 memory timing table */
+       COMPAT_NVIDIA_TEGRA20_KBC,      /* Tegra20 Keyboard */
+       COMPAT_NVIDIA_TEGRA20_NAND,     /* Tegra2 NAND controller */
 
        COMPAT_COUNT,
 };
@@ -116,6 +122,23 @@ int fdtdec_next_alias(const void *blob, const char *name,
 int fdtdec_next_compatible(const void *blob, int node,
                enum fdt_compat_id id);
 
+/**
+ * Find the next compatible subnode for a peripheral.
+ *
+ * Do the first call with node set to the parent and depth = 0. This
+ * function will return the offset of the next compatible node. Next time
+ * you call this function, pass the node value returned last time, with
+ * depth unchanged, and the next node will be provided.
+ *
+ * @param blob         FDT blob to use
+ * @param node         Start node for search
+ * @param id           Compatible ID to look for (enum fdt_compat_id)
+ * @param depthp       Current depth (set to 0 before first call)
+ * @return offset of next compatible node, or -FDT_ERR_NOTFOUND if no more
+ */
+int fdtdec_next_compatible_subnode(const void *blob, int node,
+               enum fdt_compat_id id, int *depthp);
+
 /**
  * Look up an address property in a node and return it as an address.
  * The property must hold either one address with no trailing data or
@@ -330,3 +353,36 @@ int fdtdec_decode_gpio(const void *blob, int node, const char *prop_name,
  * @return 0 if all ok or gpio was FDT_GPIO_NONE; -1 on error
  */
 int fdtdec_setup_gpio(struct fdt_gpio_state *gpio);
+
+/*
+ * Look up a property in a node and return its contents in a byte
+ * array of given length. The property must have at least enough data for
+ * the array (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 0 if ok, or -FDT_ERR_MISSING if the property is not found,
+ *             or -FDT_ERR_BADLAYOUT if not enough data
+ */
+int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name,
+               u8 *array, int count);
+
+/**
+ * Look up a property in a node and return a pointer to its contents as a
+ * byte array of given length. The property must have at least enough data
+ * for the array (count bytes). It may have more, but this will be ignored.
+ * The data is not copied.
+ *
+ * @param blob         FDT blob
+ * @param node         node to examine
+ * @param prop_name    name of property to find
+ * @param count                number of array elements
+ * @return pointer to byte array if found, or NULL if the property is not
+ *             found or there is not enough data
+ */
+const u8 *fdtdec_locate_byte_array(const void *blob, int node,
+                            const char *prop_name, int count);
+#endif