powerpc/mpc8xxx: Enable calculation for fixed DDR chips

[people/ms/u-boot.git] / README

diff --git a/README b/README
index 2da0f96abee36c008b8d8ae1a49d24baa97b06bc..1e2d4d33c0665972e0a881a9a10a53eccc63548f 100644 (file)
--- a/README
+++ b/README
@@ -2948,6 +2948,12 @@ Low Level (hardware related) configuration options:
                one, specify here. Note that the value must resolve
                to something your driver can deal with.
 
+- CONFIG_SYS_DDR_RAW_TIMING
+               Get DDR timing information from other than SPD. Common with
+               soldered DDR chips onboard without SPD. DDR raw timing
+               parameters are extracted from datasheet and hard-coded into
+               header files or board specific files.
+
 - CONFIG_SYS_83XX_DDR_USES_CS0
                Only for 83xx systems. If specified, then DDR should
                be configured using CS0 and CS1 instead of CS2 and CS3.