He also said he planned to officially visit, and that time will come this weekend when he is in town to watch the Irish play Stanford.
"I've always been interested in Notre Dame," Redfield said. "I've been talking to their coaches a lot over the last year. (Assistant) coach (Mike) Denbrock and I talk really often. Notre Dame has a great tradition, and a great team this year and I thought it would be a lot of fun if I went there and visited."
Redfield said he remains committed to the Trojans, but added "they're letting me take all five of my trips and they know I'm going to Notre Dame this weekend."
"We talk every now and then and I see him at USC games," Redfield said. "We talked about it (Tuesday) and the day before that. I think it's great (to trip together). He's a nice guy and we get along pretty well so I think it's going to be a lot of fun to have him there with me."
The Irish are recruiting Redfield as a safety, but he said Denbrock also talks about using him as a receiver.
But the impetus for Redfield to make the visit to South Bend, Ind., is Notre Dame's mix of athletics and academics.
"They have a bunch of national championships and they have a good reputation of having great coaches go there and a lot of players going to the NFL from Notre Dame," he said. "That's always had me interested in them and they're a big-time program with great academics as well. There's really no down side to Notre Dame."
The trip will be short since Redfield won't arrive at campus until Saturday morning and he will leave Sunday. So, what is he anxious to see?
"The whole campus," he said. "I heard how beautiful it is, and all the facilities. I'm really looking forward to the game and the stadium. I've seen a lot of great games there (on television)."