Refix c64x: uart API and null_uart Recent changes broke c64x platforms because they assume C66 uart. This commit seperates UART user API from implementation It also adds a "null" uart for platforms w/o a UART This null UART is used on all c64x platforms for now Signed-off-by: Bill Mills <wmills@ti.com>
6474l: Add infrastructure to build 6474l This commit adds infrastructure to build the 6474 low cost EVM as a separate target Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>