Fix compile warning in uli526x driver

[people/ms/u-boot.git] / doc / README.fsl-ddr

diff --git a/doc/README.fsl-ddr b/doc/README.fsl-ddr
index 8c37bbead1f5c10a827b04e95798dbff86a84126..1657ef61702679919301536eab515d22089c9e1d 100644 (file)
--- a/doc/README.fsl-ddr
+++ b/doc/README.fsl-ddr
@@ -71,5 +71,30 @@ The ways to configure the ddr interleaving mode
   # bank(chip-select) interleaving (cs0+cs1+cs2+cs3) (4x1)
   setenv hwconfig "fsl_ddr:bank_intlv=cs0_cs1_cs2_cs3"
 
-  The above memory controller interleaving and bank interleaving can be mixed. The syntax is
-  setenv hwconfig "fsl_ddr:ctlr_intlv=cacheline,bank_intlv=cs0_cs1"
+Memory controller address hashing
+==================================
+If the DDR controller supports address hashing, it can be enabled by hwconfig.
+
+Syntax is:
+hwconfig=fsl_ddr:addr_hash=true
+
+
+Memory testing options for mpc85xx
+==================================
+1. Memory test can be done once U-boot prompt comes up using mtest, or
+2. Memory test can be done with Power-On-Self-Test function, activated at
+   compile time.
+
+   In order to enable the POST memory test, CONFIG_POST needs to be
+   defined in board configuraiton header file. By default, POST memory test
+   performs a fast test. A slow test can be enabled by changing the flag at
+   compiling time. To test memory bigger than 2GB, 36BIT support is needed.
+   Memory is tested within a 2GB window. TLBs are used to map the virtual 2GB
+   window to physical address so that all physical memory can be tested.
+
+Combination of hwconfig
+=======================
+Hwconfig can be combined with multiple parameters, for example, on a supported
+platform
+
+hwconfig=fsl_ddr:addr_hash=true,ctlr_intlv=cacheline,bank_intlv=cs0_cs1_cs2_cs3