ARM: imx6: clocks: remove function local definitions of mxc_ccm_reg and anatop_regs

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

diff --git a/include/fdt_support.h b/include/fdt_support.h
index 2ace1550ef0e87b6a388b2b47756c0ddbb738680..a02fe047f4b64628ee44c6fdf719aa8e8d433740 100644 (file)
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -67,8 +67,34 @@ void do_fixup_by_compat(void *fdt, const char *compat,
                        const char *prop, const void *val, int len, int create);
 void do_fixup_by_compat_u32(void *fdt, const char *compat,
                            const char *prop, uint32_t val, int create);
+/**
+ * Setup the memory node in the DT. Creates one if none was existing before.
+ * Calls fdt_fixup_memory_banks() to populate a single reg pair covering the
+ * whole memory.
+ *
+ * @param blob         FDT blob to update
+ * @param start                Begin of DRAM mapping in physical memory
+ * @param size         Size of the single memory bank
+ * @return 0 if ok, or -1 or -FDT_ERR_... on error
+ */
 int fdt_fixup_memory(void *blob, uint64_t start, uint64_t size);
+
+/**
+ * Fill the DT memory node with multiple memory banks.
+ * Creates the node if none was existing before.
+ * If banks is 0, it will not touch the existing reg property. This allows
+ * boards to not mess with the existing DT setup, which may have been
+ * filled in properly before.
+ *
+ * @param blob         FDT blob to update
+ * @param start                Array of size <banks> to hold the start addresses.
+ * @param size         Array of size <banks> to hold the size of each region.
+ * @param banks                Number of memory banks to create. If 0, the reg
+ *                     property will be left untouched.
+ * @return 0 if ok, or -1 or -FDT_ERR_... on error
+ */
 int fdt_fixup_memory_banks(void *blob, uint64_t start[], uint64_t size[], int banks);
+
 void fdt_fixup_ethernet(void *fdt);
 int fdt_find_and_setprop(void *fdt, const char *node, const char *prop,
                         const void *val, int len, int create);