Your post is just a statement telling us you have problem with your router after flashing but lack of details to allow others to help and more importantly it is on the wrong forum. You should provide details such as router model with hardware version, which dd-wrt build did you flash to the router, the problem you faced after flashing and post it on the correct forum. Most TP-link routers use Atheros platform but TP-link also use Broadcom platform on some models too. If you don't know which platform is used for your router, you can check this wiki: https://www.dd-wrt.com/wiki/index.php/Supported_Devices