Initial commit for TF-A CI scripts

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
diff --git a/docs/cov.dot b/docs/cov.dot
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+/* View this file with xdot */
+digraph coverity {
+	"cov-config" -> "golden-cov-build";
+	"golden-setup" -> "golden-cov-build";
+
+	"cov-config" -> "branch-cov-build";
+	"branch-setup" -> "branch-cov-build";
+
+	"golden-cov-build" -> "golden-cov-analyze";
+	"branch-cov-build" -> "branch-cov-analyze";
+
+	"stream-setup" -> "golden-cov-commit-defects";
+	"golden-cov-analyze" -> "golden-cov-commit-defects";
+
+	"stream-setup" -> "branch-cov-commit-defects";
+	"branch-cov-analyze" -> "branch-cov-commit-defects";
+
+	"golden-cov-commit-defects" -> "branch-report-compare";
+	"branch-cov-analyze" -> "branch-report-compare";
+
+	"stream-setup" -> "branch-report-full";
+	"branch-cov-analyze" -> "branch-report-full";
+	"branch-cov-commit-defects" -> "branch-report-full";
+
+	/* Useful Coverity analysis targets */
+	"branch-cov-commit-defects" [color=red style=dotted];
+	"branch-report-compare" [color=red];
+	"branch-report-full" [color=red];
+}
diff --git a/docs/jobs_seq.txt b/docs/jobs_seq.txt
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+# This is to be pasted on to websequencediagrams.com to get the sequence
+# diagram of current CI setup
+
+title Trusted Firmware CI core jobs
+
+participant tf-ci-gateway
+note over tf-ci-gateway: clones all repositories
+note over tf-ci-gateway: generates test files
+tf-ci-gateway->+tf-worker: triggers for each test file
+activate tf-ci-gateway
+
+alt Juno run
+tf-worker->+tf-build-for-lava: triggers build
+note over tf-build-for-lava: archives artefacts
+tf-build-for-lava->-tf-worker: build complete
+
+note over tf-worker: copies artefacts
+tf-worker->+LAVA: submit job
+LAVA->-tf-worker: completes
+else FVP run
+note over tf-worker: Build package
+note over tf-worker: Run package
+end
+
+tf-worker->-tf-ci-gateway: test complete
+deactivate tf-ci-gateway
+
+note over tf-ci-gateway: generate test report
+note over tf-ci-gateway: clean up checkouts