As is often the case with obscure but essential deep soul, the only site with any detailed information is the mighty Sir Shambling's so head on over THERE for a bio and breakdown of Robinson's brief but righteous body of work.
When A Man Cries collects the complete Johnny Robinson solo recordings. The debut 45 for Strike Records as 'Johnny R', the three 45s for OKeh Records and the Willie Mitchell produced LP, Memphis High. Also included is one of Robinson's two sides fronting Que Sunryse released in 1973. All files chronicled, cleanly tagged and mp3 @ 320kbs. Thanks to original uploaders, enjoy.
Que Sunryse - 1973 - A Storm Brewing (Just Sunshine 514)