Hi Wolfgang,
On Sat, Nov 3, 2012 at 7:54 AM, Wolfgang Denk wd@denx.de wrote:
Dear Simon Glass,
In message 1351813330-23741-7-git-send-email-sjg@chromium.org you wrote:
Some boards want to report more than just memory size. For example, it might be useful to display the memory type (DDR2, DDR3) or manufacturer.
Add a weak function to support this requirement.
Any example of the DRAM: output is below, just for illustration:
U-Boot 2011.12-02470-gd64a0f8-dirty (Sep 14 2012 - 10:46:39) for SMDK5250
CPU: S5PC520 @ 1700MHz I2C: ready DRAM: 2 GiB Samsung DDR3 @ 800MHz MMC: S5P MSHC0: 0, S5P MSHC1: 1 Using default environment
NAK.
Such information does not belong into the standard boot messages. These should containonly the necessary information to see that U-Boot is coming up correctly and give indication where it might be hanging if it does.
All other information should be printed by commands that may be called by users who are actually interested in such information. You may even add such commands to your "preboot" settings, but please make sure that users not interested in such stuff can change this and get only minimal output (as may be needed for minimal boot times).
A key reason for not coming up correctly is the memory being configured incorrectly - e.g. timings or type incorrect.
I will see if I can add a command for this.
Regards, Simon
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de If a person (a) is poorly, (b) receives treatment intended to make him better, and (c) gets better, then no power of reasoning known to medical science can convince him that it may not have been the treatment that restored his health.
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