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authorWolfgang Denk <wd@denx.de>2011-02-02 22:36:10 +0100
committerWolfgang Denk <wd@denx.de>2011-02-02 22:36:10 +0100
commitd1a24f061849ebe4f288d95e8ceb8380f762d323 (patch)
tree931fa11d8001abbade00fed6f03ac3a10d12d1c2 /doc
parentbe9db564de898240034151c48cf9e0d03ece3f35 (diff)
downloadu-boot-linaro-stable-d1a24f061849ebe4f288d95e8ceb8380f762d323.tar.gz
Minor Coding Style Cleanup.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'doc')
-rw-r--r--doc/README.fsl-ddr84
1 files changed, 42 insertions, 42 deletions
diff --git a/doc/README.fsl-ddr b/doc/README.fsl-ddr
index a7ba193f3..c1ee0a68a 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 @@ in Ohms.
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