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>
Two stage load of ibl from I2C A two stage load of the ibl is done. The first stage loaded is an endian independent program which then loads the rest of the ibl (endian dependent). The PLL is also setup in the first stage which will increase the load time for the c6455