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
COMPAT_NVIDIA_TEGRA20_SFLASH, /* Tegra 2 SPI flash controller */
COMPAT_NVIDIA_TEGRA20_SLINK, /* Tegra 2 SPI SLINK controller */
COMPAT_NVIDIA_TEGRA114_SPI, /* Tegra 114 SPI controller */
+ COMPAT_NVIDIA_TEGRA124_PCIE, /* Tegra 124 PCIe controller */
+ COMPAT_NVIDIA_TEGRA30_PCIE, /* Tegra 30 PCIe controller */
+ COMPAT_NVIDIA_TEGRA20_PCIE, /* Tegra 20 PCIe controller */
+ COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL,
+ /* Tegra124 XUSB pad controller */
COMPAT_SMSC_LAN9215, /* SMSC 10/100 Ethernet LAN9215 */
COMPAT_SAMSUNG_EXYNOS5_SROMC, /* Exynos5 SROMC */
COMPAT_SAMSUNG_S3C2440_I2C, /* Exynos I2C Controller */
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_INTEL_PANTHERPOINT_AHCI, /* Intel Pantherpoint AHCI */
+ COMPAT_INTEL_MODEL_206AX, /* Intel Model 206AX CPU */
+ COMPAT_INTEL_GMA, /* Intel Graphics Media Accelerator */
+ COMPAT_AMS_AS3722, /* AMS AS3722 PMIC */
COMPAT_COUNT,
};
int *seqp);
/**
- * Get the offset of the given alias node
+ * Get the offset of the given chosen node
*
- * This looks up an alias in /aliases then finds the offset of that 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 Alias name, e.g. "console"
- * @return Node offset referred to by that alias, or -ve FDT_ERR_...
+ * @param name Property name, e.g. "stdout-path"
+ * @return Node offset referred to by that chosen node, or -ve FDT_ERR_...
*/
-int fdtdec_get_alias_node(const void *blob, const char *name);
+int fdtdec_get_chosen_node(const void *blob, const char *name);
/*
* Get the name for a compatible ID
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
* @param blob FDT blob
* @param node node to examine
* @param prop_name name of property to find
- * @param ptrp returns pointer to region, or NULL if no address
- * @param size returns size of region
- * @return 0 if ok, -1 on error (propery not found)
+ * @param basep Returns base address of region
+ * @param size Returns size of region
+ * @return 0 if ok, -1 on error (property not found)
*/
-int fdtdec_decode_region(const void *blob, int node,
- const char *prop_name, void **ptrp, size_t *size);
+int fdtdec_decode_region(const void *blob, int node, const char *prop_name,
+ fdt_addr_t *basep, fdt_size_t *sizep);
+
+enum fmap_compress_t {
+ FMAP_COMPRESS_NONE,
+ FMAP_COMPRESS_LZO,
+};
+
+enum fmap_hash_t {
+ FMAP_HASH_NONE,
+ FMAP_HASH_SHA1,
+ FMAP_HASH_SHA256,
+};
/* A flash map entry, containing an offset and length */
struct fmap_entry {
uint32_t offset;
uint32_t length;
+ uint32_t used; /* Number of bytes used in region */
+ enum fmap_compress_t compress_algo; /* Compression type */
+ enum fmap_hash_t hash_algo; /* Hash algorithm */
+ const uint8_t *hash; /* Hash value */
+ int hash_size; /* Hash size */
};
/**
*/
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);
+
+/**
+ * Decode a named region within a memory bank of a given type.
+ *
+ * This function handles selection of a memory region. The region is
+ * specified as an offset/size within a particular type of memory.
+ *
+ * The properties used are:
+ *
+ * <mem_type>-memory<suffix> for the name of the memory bank
+ * <mem_type>-offset<suffix> for the offset in that bank
+ *
+ * The property value must have an offset and a size. The function checks
+ * that the region is entirely within the memory bank.5
+ *
+ * @param blob FDT blob
+ * @param node Node containing the properties (-1 for /config)
+ * @param mem_type Type of memory to use, which is a name, such as
+ * "u-boot" or "kernel".
+ * @param suffix String to append to the memory/offset
+ * property names
+ * @param basep Returns base of region
+ * @param sizep Returns size of region
+ * @return 0 if OK, -ive on error
+ */
+int fdtdec_decode_memory_region(const void *blob, int node,
+ const char *mem_type, const char *suffix,
+ fdt_addr_t *basep, fdt_size_t *sizep);
#endif
projects / karo-tx-uboot.git / blobdiff