diff --git a/tools/ddrbin_tool b/tools/ddrbin_tool
index 6e8474fe..fbf1678d 100755
Binary files a/tools/ddrbin_tool and b/tools/ddrbin_tool differ
diff --git a/tools/ddrbin_tool_user_guide.txt b/tools/ddrbin_tool_user_guide.txt
old mode 100644
new mode 100755
index 5eb10300..e6994e68
--- a/tools/ddrbin_tool_user_guide.txt
+++ b/tools/ddrbin_tool_user_guide.txt
@@ -191,6 +191,9 @@ The 'X' as follows means not support change frequencies by tool.
 +---------------+-----------------------------------------------------------------+
 |    RK3588     |     LP4/LP4x [306.5MHz - 2133MHz]; LP5: [400MHz - 2750MHz]      |
 +---------------+-----------------------------------------------------------------+
+|    RK3528     |        DDR3/LP3: 324,396,528,630,780,920,1056                   |
+|               |   DDR4/LP4/LP4X: 324,396,528,630,780,920,1056,1184              |
++---------------+-----------------------------------------------------------------+
 
 * DDR frequencies(add more)
 
@@ -232,7 +235,7 @@ ddr_2t: ddr 2T timing mode. 1: enable ddr 2T, 0: disable ddr 2T.
 * PLL ssmod
 
 These parameters are about Spread Spectrum Modulator(ssmod) for PLL.
-ssmod_downspread: ssmod work mode. 0: down spread, 1: center spread.
+ssmod_downspread: ssmod work mode. 1: down spread, 0: center spread.
 ssmod_div: Divider required to set the modulation frequency. RK3308 suggests to ssmod_div=2, others platforms suggest to ssmod_div=5.
 ssmod_spread: spread amplitude % = 0.1 * ssmod_spread; 0: disable ssmod, others will enable ssmod, max to 0x1f.
 
@@ -267,6 +270,13 @@ The phy side driver strength support value as follows:
 |    RK3588     |         X         |         X         |       X      |  240,120,80,60, |   follow LP4   |   follow LP4   | follow LP4  |
 |               |                   |                   |              |   48,40,34,30   |                |                |             |
 +---------------+-------------------+-------------------+--------------+-----------------+----------------+----------------+-------------+
+|               | 572,289,195,145,  | 595,300,202,151,  |              | 654,328,221,165,| 585,297,202,   | 585,297,202,   |             |
+|               | 117,99,85,73,66,  | 122,102,89,76,68, |              |133,112,97,83,74,| 150,122,103,90,| 150,122,103,90,|             |
+|    RK3528     | 60,55,50,47,44,41,| 62,57,52,49,45,43,|  follow DDR4 | 67,62,57,53,49, | 77,69,63,58,53,| 77,69,63,58,53,|      X      |
+|               | 38,36,34,33,31,30,| 39,37,35,34,32,31,|              | 46,43,40,38,37, | 50,47,44,40,38,| 50,47,44,40,38,|             |
+|               | 29,28             | 30,29             |              | 35,33,32,31     | 37,35,33,32,31,| 37,35,33,32,31,|             |
+|               |                   |                   |              |                 | 30             | 30             |             |
++---------------+-------------------+-------------------+--------------+-----------------+----------------+----------------+-------------+
 
 The DRAM side driver strength support value as follows:
 +---------------+-------------------+-------------------+----------------+----------------------+----------------+-------------+
@@ -304,7 +314,13 @@ The ODT "0" means disabled ODT.
 |    RK3588     |         X         |          X         |       X      |   0,240,120,80,   |   follow LP4   |   follow LP4   | follow LP4  |
 |               |                   |                    |              |  60,48,40,34,30   |                |                |             |
 +---------------+-------------------+--------------------+--------------+-------------------+----------------+----------------+-------------+
-
+|               | 572,289,195,145,  | 595,300,202,151,   |              | 654,328,221,165,  | 585,297,202,   | 585,297,202,   |             |
+|               | 117,99,85,73,66,  | 122,102,89,76,68,  |              |133,112,97,83,74,  | 150,122,103,90,| 150,122,103,90,|             |
+|    RK3528     | 60,55,50,47,44,41,| 62,57,52,49,45,43, |  follow DDR4 | 67,62,57,53,49,   | 77,69,63,58,53,| 77,69,63,58,53,|      X      |
+|               | 38,36,34,33,31,30,| 39,37,35,34,32,31, |              | 46,43,40,38,37,   | 50,47,44,40,38,| 50,47,44,40,38,|             |
+|               | 29,28             | 30,29              |              | 35,33,32,31       | 37,35,33,32,31,| 37,35,33,32,31,|             |
+|               |                   |                    |              |                   | 30             | 30             |             |
++---------------+-------------------+--------------------+--------------+-------------------+----------------+----------------+-------------+
 The DRAM side ODT support value as follows:
 +---------------+-------------------+-------------------+--------------+-----------------------+----------------+---------------+
 |   platform    |        DDR3       |        DDR4       |     LP3      | LP4(include DQ and CA)|      LP4X      |      LP5      |