You always download the main repository with the git clone command, then checkout the build you want.
time git clone -n http://git.linaro.org/landing-teams/working/qualcomm/kernel.git
I think this should get the 260 build for you:
git checkout -b kernel-17.06.1 debian-qcom-dragonboard410c-17.06.1
I have a ‘script’ that does various checkouts for me, it looks like this, just uncomment the one you want:
#time git checkout -b build-97 2e4646fcf227f8023e535ddb18d3f3185665d8dd
#time git checkout -b build-109 634ba131f4442045f1e38246a899615c219730ee
#time git checkout -b build-202 0ea6924010269ba065848b2e450673e96bceffd9
#time git checkout -b build-227 a6b64c721f5fed87d6f770ca2eb9ca622d1ce37c
#time git checkout -b kernel-17.04 debian-qcom-dragonboard410c-17.04
#time git checkout -b build-236 7a1690cbc7633f49cdb976687d32d5d2affbe14f
#time git checkout -b build-240 180b1b7c70a3c567b72421dd9ac1b465527bdf65
#time git checkout -b build-250 529c1db225629896d51b64a481b3760fd81a663a
time git checkout -b kernel-17.06.1 debian-qcom-dragonboard410c-17.06.1
As you can see, you can use a magic number for each build, or a symbolic tag for release builds. Unfortunately I don’t have a list of the magic numbers for every build. Daniel was suggesting a way you could find the magic numbers by looking at the dates.
Full Disclosure: I am an employee of Qualcomm Canada, any opinions I may have expressed in this or any other post may not reflect the opinions of my employer.