Author: imp
Date: Thu Feb 10 23:36:39 2011
New Revision: 218528
URL: http://svn.freebsd.org/changeset/base/218528
Log:
Add 'generic' flash images. This is for projects producing generic
images that are of a certain size. The geometery is bogus, but that
doesn't matter since the new packet mode onviates the need to get the
geometry right.
Modified:
head/tools/tools/nanobsd/FlashDevice.sub
Modified: head/tools/tools/nanobsd/FlashDevice.sub
==============================================================================
--- head/tools/tools/nanobsd/FlashDevice.sub Thu Feb 10 22:36:23 2011
(r218527)
+++ head/tools/tools/nanobsd/FlashDevice.sub Thu Feb 10 23:36:39 2011
(r218528)
@@ -203,10 +203,52 @@ sub_FlashDevice () {
;;
esac
;;
+ # Generic flash media. It assumes that we're booting using packet
+ # mode so the HEADS and SECTS don't matter. The truncation of the
+ # size to a slightly lower number is intentional to be conservative
+ # (eg, 1 sector smaller than N GB is always smaller than any flash
+ # claiming to be N GB, but wastes a little space sometimes when 1GB
+ # really means 1GiB). This is intended to be used when producing
+ # generic images for anybody to boot. Media sizes are specified 'Xg'
+ # for X GB (10^9 bytes) flash or Xm for X MB (10^6 bytes) flash.
+ # Power of 2 variants can be specified with gi or mi for GiB and MiB
+ # sizeed flash and don't try to be conservative (use with caution).
+ generic)
+ case $a2 in
+ *.*) # Catch unsupported 1.5g case, since expr can't
+ # cope with floats.
+ echo "Unsupported generic size $a2"
+ exit 2
+ ;;
+ *m)
+ NANO_HEADS=16
+ NANO_SECTS=63
+ NANO_MEDIASIZE=`expr -e ${a2%m} \* 1000000 / 512`
+ ;;
+ *g)
+ NANO_HEADS=16
+ NANO_SECTS=63
+ NANO_MEDIASIZE=`expr -e ${a2%g} \* 1000000000 / 512`
+ ;;
+ *mi)
+ NANO_HEADS=16
+ NANO_SECTS=63
+ NANO_MEDIASIZE=`expr -e ${a2%mi} \* 1024 \* 1024 / 512`
+ ;;
+ *gi)
+ NANO_HEADS=16
+ NANO_SECTS=63
+ NANO_MEDIASIZE=`expr -e ${a2%gi} \* 1024 \* 1024 \*
1024 / 512`
+ ;;
+ *)
+ echo "Unsupported generic size $a2"
+ exit 2
+ ;;
+ esac
+ ;;
*)
echo "Unknown Flash manufacturer"
exit 2
;;
esac
}
-
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