How to control SSL in WordPress for automatically changing http to https?

The title and last line of your question conflict, in the title you want HTTPS as the end result, in the final line your asking for HTTP. I assume the title is correct.

Don’t use a WP plugin for this. I don’t have a godaddy account, but most commonly you would want an .htaccess file in the domains root that redirects traffic not on port 443 to HTTPS.

See here: http://support.godaddy.com/help/article/8828/automatically-redirecting-visitors-to-https