Re: [U-Boot] [PATCH v2 03/10] mkconfig: add support for SPL CPU

On 06/05/2012 03:20 PM, Allen Martin wrote:

Add support for specifying a differnt CPU for main u-boot and SPL

typo ^^

u-boot builds. This is done by adding an optional SPL CPU after the main CPU in boards.cfg as follows:

 normal_cpu:spl_cpu

This this case CPU will be set to "normal_cpu" during the main u-boot build and "spl_cpu" during the SPL build.

diff --git a/mkconfig b/mkconfig

+tmp="${cpu#*:}" +if [ "$tmp" != "$cpu" ] ; then

• spl_cpu=$tmp
• cpu="${cpu%:*}"

+fi

Neat - I wasn't aware of those variable expansion techniques.

However, this script runs under /bin/sh - are they standard sh constructs, or are they bash-isms? I wonder if shelling out to awk or cut here would be more portable?