SAMA7G5 uses CCF driver under drivers/clk/at91/ and not the custom older at91 clock.c driver. Remove it from the compilation list and adapt cpu.c arch_cpu_init() to avoid calling at91_clock_init() which is wrong anyway. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>