Revision as of 15:36, 18 June 2010

( WIP )

How to find the Silicon Revision of your OMAP35x

Read back a 32 bit word from the CONTROL_IDCODE Register at address: 0x4830 A204

Use the memory dump capability of u-boot:

U-Boot # md 0x4830A204 1 
4830a204: 2b7ae02f    /.z+

From the read back value: 2b7ae02f, you can see the revision of this OMAP35x corresponds to ES2.1

Power measurements taken over the operating conditions specified.

Platform reference	Power-up ⁽¹⁾	2.6.28.y	2.6.33.y
IGEP v2 RC1	240mA	550mA
IGEP v2 RC2	240mA	460mA
IGEP v2 RC3	240mA	550mA
IGEP SOC 3530 4G	80mA	NA	310mA
IGEP SOC 3503 1G	80mA	NA	260mA

Power measurements conditions:

The read tests were performed by running the following command:

$ time dd if=/dev/mmcblk0 of=/dev/null

The write tests were performed by running the following command:

$ time dd if=/dev/zero of=/dev/mmcblk0

The time used for the calculations was the time reported by dd.

Test (SD 2GB)	2.6.28.y	2.6.33.y	2.6.34.y
read		1m 41s
write		9m 29s

@@ Line 79: / Line 79: @@
 *1: Typical value when power-up with empty flash
+= MMC performance =
+The read tests were performed by running the following command:
+ $ time dd if=/dev/mmcblk0 of=/dev/null
+The write tests were performed by running the following command:
+ $ time dd if=/dev/zero of=/dev/mmcblk0
+The time used for the calculations was the time reported by dd.
+{| border="1"
+|-
+! Test (SD 2GB)
+! 2.6.28.y
+! 2.6.33.y
+! 2.6.34.y
+|-
+| read
+|
+| 1m 41s
+|
+|-
+| write
+|
+| 9m 29s
+|
+|}