How to create an AP in OpenWRT with TL-MR3040

Goto /etc/config/wireless 

add the text in red

restart networks

/etc/init.d/networking restart

config wifi-device 'radio0'
        option disabled '0'

config wifi-iface
        option ssid 'IphoneSsid'
        option encryption 'psk2'
        option device 'radio0'
        option mode 'sta'
        option key 'Iphonekeyhere'
        option network 'wan'

config wifi-iface
        option device 'radio0'
        option mode 'ap'
        option ssid 'OpenWrt'
        option encryption 'psk2'
        option key 'iamverysecure'
        option network 'lan'