To report a qualified charitable distribution on your Form 1040 tax return, you'll use the 1099-R (even though there's no indication that it was a QCD). Enter the info as a 1099-R and you'll be asked in one of the follow-up question if it was a Qualified Charitable Distribution.
TurboTax includes the full amount of the distribution reported on your Form 1099-R on line 4a (IRA Distributions) of your Form 1040. The taxable amount reported on Line 4b will be the total distribution less the QCD amount and will have "QCD" entered next to it. What is a Qualified Charitable Distribution?
Here's how to enter your 1099-R: