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authorYork Sun2014-02-26 17:03:19 -0800
committerTom Rini2014-03-04 12:15:30 -0500
commit4d1fd7f1ae6cf4e6e4e1cad975f1dcdea62b6d83 (patch)
treefac005cacc864827055709aad05b3924a1eae3e3 /README
parentf9aa6a1086f6b7da1814a2c95feefa91c9c4b593 (diff)
Add 64-bit data support for memory commands
Add 64-bit data for memory commands, such as md, mw, mm, cmp. The new size ".q " is introduced. For 64-bit architecture, 64-bit data is enabled by default, by detecting compiler __LP64__. It is optional for other architectures. Signed-off-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'README')
-rw-r--r--README3
1 files changed, 3 insertions, 0 deletions
diff --git a/README b/README
index ff4926040b5..216f0c70aa9 100644
--- a/README
+++ b/README
@@ -3470,6 +3470,9 @@ typically in board_init_f() and board_init_r().
Configuration Settings:
-----------------------
+- CONFIG_SYS_SUPPORT_64BIT_DATA: Defined automatically if compiled as 64-bit.
+ Optionally it can be defined to support 64-bit memory commands.
+
- CONFIG_SYS_LONGHELP: Defined when you want long help messages included;
undefine this when you're short of memory.