diff --git a/doc/README.fsl-ddr b/doc/README.fsl-ddr
index a7ba193..c1ee0a6 100644
--- a/doc/README.fsl-ddr
+++ b/doc/README.fsl-ddr
@@ -2,25 +2,25 @@
 Table of interleaving modes supported in cpu/8xxx/ddr/
 ======================================================
   +-------------+---------------------------------------------------------+
-  |             |                   Rank Interleaving                     |
-  |             +--------+-----------+-----------+------------+-----------+
-  |Memory       |        |           |           |    2x2     |    4x1    |
-  |Controller   |  None  | 2x1 lower | 2x1 upper | {CS0+CS1}, | {CS0+CS1+ |
-  |Interleaving |        | {CS0+CS1} | {CS2+CS3} | {CS2+CS3}  |  CS2+CS3} |
+  |		|		    Rank Interleaving			  |
+  |		+--------+-----------+-----------+------------+-----------+
+  |Memory	|	 |	     |		 |    2x2     |    4x1	  |
+  |Controller	|  None  | 2x1 lower | 2x1 upper | {CS0+CS1}, | {CS0+CS1+ |
+  |Interleaving |	 | {CS0+CS1} | {CS2+CS3} | {CS2+CS3}  |  CS2+CS3} |
   +-------------+--------+-----------+-----------+------------+-----------+
-  |None         |  Yes   | Yes       | Yes       | Yes        | Yes       |
+  |None		|  Yes	 | Yes	     | Yes	 | Yes	      | Yes	  |
   +-------------+--------+-----------+-----------+------------+-----------+
-  |Cacheline    |  Yes   | Yes       | No        | No, Only(*)| Yes       |
-  |             |CS0 Only|           |           | {CS0+CS1}  |           |
+  |Cacheline	|  Yes	 | Yes	     | No	 | No, Only(*)| Yes	  |
+  |		|CS0 Only|	     |		 | {CS0+CS1}  |		  |
   +-------------+--------+-----------+-----------+------------+-----------+
-  |Page         |  Yes   | Yes       | No        | No, Only(*)| Yes       |
-  |             |CS0 Only|           |           | {CS0+CS1}  |           |
+  |Page		|  Yes	 | Yes	     | No	 | No, Only(*)| Yes	  |
+  |		|CS0 Only|	     |		 | {CS0+CS1}  |		  |
   +-------------+--------+-----------+-----------+------------+-----------+
-  |Bank         |  Yes   | Yes       | No        | No, Only(*)| Yes       |
-  |             |CS0 Only|           |           | {CS0+CS1}  |           |
+  |Bank		|  Yes	 | Yes	     | No	 | No, Only(*)| Yes	  |
+  |		|CS0 Only|	     |		 | {CS0+CS1}  |		  |
   +-------------+--------+-----------+-----------+------------+-----------+
-  |Superbank    |  No    | Yes       | No        | No, Only(*)| Yes       |
-  |             |        |           |           | {CS0+CS1}  |           |
+  |Superbank	|  No	 | Yes	     | No	 | No, Only(*)| Yes	  |
+  |		|	 |	     |		 | {CS0+CS1}  |		  |
   +-------------+--------+-----------+-----------+------------+-----------+
  (*) Although the hardware can be configured with memory controller
  interleaving using "2x2" rank interleaving, it only interleaves {CS0+CS1}
@@ -116,57 +116,57 @@
 
 Two slots system
 +-----------------------+----------+---------------+-----------------------------+-----------------------------+
-|     Configuration     |          |DRAM controller|           Slot 1            |            Slot 2           |
+|     Configuration	|	   |DRAM controller|	       Slot 1		 |	      Slot 2	       |
 +-----------+-----------+----------+-------+-------+--------------+--------------+--------------+--------------+
-|           |           |          |       |       |     Rank 1   |     Rank 2   |   Rank 1     |    Rank 2    |
-+  Slot 1   |   Slot 2  |Write/Read| Write | Read  |-------+------+-------+------+-------+------+-------+------+
-|           |           |          |       |       | Write | Read | Write | Read | Write | Read | Write | Read |
+|	    |		|	   |	   |	   |	 Rank 1   |	Rank 2	 |   Rank 1	|    Rank 2    |
++  Slot 1   |	Slot 2	|Write/Read| Write | Read  |-------+------+-------+------+-------+------+-------+------+
+|	    |		|	   |	   |	   | Write | Read | Write | Read | Write | Read | Write | Read |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|           |           |  Slot 1  |  off  | 75    | 120   | off  | off   | off  | off   | off  | 30    | 30   |
+|	    |		|  Slot 1  |  off  | 75    | 120   | off  | off   | off  | off	 | off	| 30	| 30   |
 | Dual Rank | Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|           |           |  Slot 2  |  off  | 75    | off   | off  | 30    | 30   | 120   | off  | off   | off  |
+|	    |		|  Slot 2  |  off  | 75    | off   | off  | 30	  | 30	 | 120	 | off	| off	| off  |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|           |           |  Slot 1  |  off  | 75    | 120   | off  | off   | off  | 20    | 20   |       |      |
+|	    |		|  Slot 1  |  off  | 75    | 120   | off  | off   | off  | 20	 | 20	|	|      |
 | Dual Rank |Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|           |           |  Slot 2  |  off  | 75    | off   | off  | 20    | 20   | 120  *| off  |       |      |
+|	    |		|  Slot 2  |  off  | 75    | off   | off  | 20	  | 20	 | 120	*| off	|	|      |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|           |           |  Slot 1  |  off  | 75    | 120  *| off  |       |      | off   | off  | 20    | 20   |
+|	    |		|  Slot 1  |  off  | 75    | 120  *| off  |	  |	 | off	 | off	| 20	| 20   |
 |Single Rank| Dual Rank |----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|           |           |  Slot 2  |  off  | 75    | 20    | 20   |       |      | 120   | off  | off   | off  |
+|	    |		|  Slot 2  |  off  | 75    | 20    | 20   |	  |	 | 120	 | off	| off	| off  |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|           |           |  Slot 1  |  off  | 75    | 120  *| off  |       |      | 30    | 30   |       |      |
+|	    |		|  Slot 1  |  off  | 75    | 120  *| off  |	  |	 | 30	 | 30	|	|      |
 |Single Rank|Single Rank|----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|           |           |  Slot 2  |  off  | 75    | 30    | 30   |       |      | 120  *| off  |       |      |
+|	    |		|  Slot 2  |  off  | 75    | 30    | 30   |	  |	 | 120	*| off	|	|      |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-| Dual Rank |   Empty   |  Slot 1  |  off  | 75    | 40    | off  | off   | off  |       |      |       |      |
+| Dual Rank |	Empty	|  Slot 1  |  off  | 75    | 40    | off  | off   | off  |	 |	|	|      |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|   Empty   | Dual Rank |  Slot 2  |  off  | 75    |       |      |       |      | 40    | off  | off   | off  |
+|   Empty   | Dual Rank |  Slot 2  |  off  | 75    |	   |	  |	  |	 | 40	 | off	| off	| off  |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|Single Rank|   Empty   |  Slot 1  |  off  | 75    | 40    | off  |       |      |       |      |       |      |
+|Single Rank|	Empty	|  Slot 1  |  off  | 75    | 40    | off  |	  |	 |	 |	|	|      |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|   Empty   |Single Rank|  Slot 2  |  off  | 75    |       |      |       |      | 40    | off  |       |      |
+|   Empty   |Single Rank|  Slot 2  |  off  | 75    |	   |	  |	  |	 | 40	 | off	|	|      |
 +-----------+-----------+----------+-------+-------+-------+------+-------+------+-------+------+-------+------+
 
 Single slot system
 +-------------+------------+---------------+-----------------------------+-----------------------------+
-|             |            |DRAM controller|     Rank 1   |    Rank 2    |    Rank 3    |    Rank 4    |
+|	      |		   |DRAM controller|	 Rank 1   |    Rank 2	 |    Rank 3	|    Rank 4    |
 |Configuration| Write/Read |-------+-------+-------+------+-------+------+-------+------+-------+------+
-|             |            | Write | Read  | Write | Read | Write | Read | Write | Read | Write | Read |
+|	      |		   | Write | Read  | Write | Read | Write | Read | Write | Read | Write | Read |
 +-------------+------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|             |   R1       | off   | 75    | 120  *| off  | off   | off  | 20    | 20   | off   | off  |
-|             |------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|             |   R2       | off   | 75    | off   | 20   | 120   | off  | 20    | 20   | off   | off  |
+|	      |   R1	   | off   | 75    | 120  *| off  | off   | off  | 20	 | 20	| off	| off  |
+|	      |------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|	      |   R2	   | off   | 75    | off   | 20   | 120   | off  | 20	 | 20	| off	| off  |
 |  Quad Rank  |------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|             |   R3       | off   | 75    | 20    | 20   | off   | off  | 120  *| off  | off   | off  |
-|             |------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|             |   R4       | off   | 75    | 20    | 20   | off   | off  | off   | 20   | 120   | off  |
+|	      |   R3	   | off   | 75    | 20    | 20   | off   | off  | 120	*| off	| off	| off  |
+|	      |------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
+|	      |   R4	   | off   | 75    | 20    | 20   | off   | off  | off	 | 20	| 120	| off  |
 +-------------+------------+-------+-------+-------+------+-------+------+-------+------+-------+------+
-|             |   R1       | off   | 75    | 40    | off  | off   | off  |
+|	      |   R1	   | off   | 75    | 40    | off  | off   | off  |
 |  Dual Rank  |------------+-------+-------+-------+------+-------+------+
-|             |   R2       | off   | 75    | 40    | off  | off   | off  |
+|	      |   R2	   | off   | 75    | 40    | off  | off   | off  |
 +-------------+------------+-------+-------+-------+------+-------+------+
-| Single Rank |   R1       | off   | 75    | 40    | off  |
+| Single Rank |   R1	   | off   | 75    | 40    | off  |
 +-------------+------------+-------+-------+-------+------+
 
 Reference http://www.xrosstalkmag.com/mag_issues/xrosstalk_oct08_final.pdf
-          http://download.micron.com/pdf/technotes/ddr3/tn4108_ddr3_design_guide.pdf
+	  http://download.micron.com/pdf/technotes/ddr3/tn4108_ddr3_design_guide.pdf