arm/rpi: Enable dcache

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

diff --git a/include/linker_lists.h b/include/linker_lists.h
index 507d61ba9a5c0d54d60f54f966391a8a7ef6eae2..76898ab70262dc8e033c0c74d6ce63708d236902 100644 (file)
--- a/include/linker_lists.h
+++ b/include/linker_lists.h
@@ -11,6 +11,8 @@
 #ifndef __LINKER_LISTS_H__
 #define __LINKER_LISTS_H__
 
+#include <linux/compiler.h>
+
 /*
  * There is no use in including this from ASM files, but that happens
  * anyway, e.g. PPC kgdb.S includes command.h which incluse us.
@@ -21,7 +23,7 @@
 
 /**
  * A linker list is constructed by grouping together linker input
- * sections, each containning one entry of the list. Each input section
+ * sections, each containing one entry of the list. Each input section
  * contains a constant initialized variable which holds the entry's
  * content. Linker list input sections are constructed from the list
  * and entry names, plus a prefix which allows grouping all lists
@@ -37,7 +39,7 @@
  * This ensures uniqueness for both input section and C variable name.
  *
  * Note that the names differ only in the first character, "." for the
- * setion and "_" for the variable, so that the linker cannot confuse
+ * section and "_" for the variable, so that the linker cannot confuse
  * section and symbol names. From now on, both names will be referred
  * to as
  *
@@ -81,7 +83,7 @@
  * global list name ("outer"); iterators for only a sub-list should use
  * the full sub-list name ("outer_2_inner").
  *
- *  Here is an example of the sections generated from a global list
+ * Here is an example of the sections generated from a global list
  * named "drivers", two sub-lists named "i2c" and "pci", and iterators
  * defined for the whole list and each sub-list:
  *
@@ -100,6 +102,16 @@
  *   %u_boot_list_2_drivers_3
  */
 
+/**
+ * llsym() - Access a linker-generated array entry
+ * @_type:     Data type of the entry
+ * @_name:     Name of the entry
+ * @_list:     name of the list. Should contain only characters allowed
+ *             in a C variable name!
+ */
+#define llsym(_type, _name, _list) \
+               ((_type *)&_u_boot_list_2_##_list##_2_##_name)
+
 /**
  * ll_entry_declare() - Declare linker-generated array entry
  * @_type:     Data type of the entry
@@ -130,7 +142,7 @@
  *    the inner sections are present in the array.
  *
  * Example:
- * ll_entry_declare(struct my_sub_cmd, my_sub_cmd, cmd_sub, cmd.sub) = {
+ * ll_entry_declare(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
  *         .x = 3,
  *         .y = 4,
  * };
@@ -140,6 +152,27 @@
                        __attribute__((unused,                          \
                        section(".u_boot_list_2_"#_list"_2_"#_name)))
 
+/**
+ * ll_entry_declare_list() - Declare a list of link-generated array entries
+ * @_type:     Data type of each entry
+ * @_name:     Name of the entry
+ * @_list:     name of the list. Should contain only characters allowed
+ *             in a C variable name!
+ *
+ * This is like ll_entry_declare() but creates multiple entries. It should
+ * be assigned to an array.
+ *
+ * ll_entry_declare_list(struct my_sub_cmd, my_sub_cmd, cmd_sub) = {
+ *     { .x = 3, .y = 4 },
+ *     { .x = 8, .y = 2 },
+ *     { .x = 1, .y = 7 }
+ * };
+ */
+#define ll_entry_declare_list(_type, _name, _list)                     \
+       _type _u_boot_list_2_##_list##_2_##_name[] __aligned(4)         \
+                       __attribute__((unused,                          \
+                       section(".u_boot_list_2_"#_list"_2_"#_name)))
+
 /**
  * We need a 0-byte-size type for iterator symbols, and the compiler
  * does not allow defining objects of C type 'void'. Using an empty
@@ -189,7 +222,7 @@
  */
 #define ll_entry_end(_type, _list)                                     \
 ({                                                                     \
-       static char end[0] __aligned(4) __attribute__((unused,  \
+       static char end[0] __aligned(4) __attribute__((unused,          \
                section(".u_boot_list_2_"#_list"_3")));                 \
        (_type *)&end;                                                  \
 })
@@ -223,8 +256,8 @@
  * @_name:     Name of the entry
  * @_list:     Name of the list in which this entry is placed
  *
- * This function returns a pointer to a particular entry in LG-array
- * identified by the subsection of u_boot_list where the entry resides
+ * This function returns a pointer to a particular entry in linker-generated
+ * array identified by the subsection of u_boot_list where the entry resides
  * and it's name.
  *
  * Example:
@@ -239,7 +272,7 @@
        ({                                                              \
                extern _type _u_boot_list_2_##_list##_2_##_name;        \
                _type *_ll_result =                                     \
-                       &_u_boot_list_2_##_list##_2_##_name;    \
+                       &_u_boot_list_2_##_list##_2_##_name;            \
                _ll_result;                                             \
        })
 
@@ -264,7 +297,7 @@
 })
 
 /**
- * ll_entry_end() - Point after last entry of last linker-generated array
+ * ll_end() - Point after last entry of last linker-generated array
  * @_type:     Data type of the entry
  *
  * This function returns (_type *) pointer after the very last entry of
@@ -278,7 +311,7 @@
  */
 #define ll_end(_type)                                                  \
 ({                                                                     \
-       static char end[0] __aligned(4) __attribute__((unused,  \
+       static char end[0] __aligned(4) __attribute__((unused,          \
                section(".u_boot_list_3")));                            \
        (_type *)&end;                                                  \
 })