SOCFPGA_PLL_EXT_ENA   20 drivers/clk/socfpga/clk-pll-a10.c #define SOCFPGA_PLL_EXT_ENA		2
SOCFPGA_PLL_EXT_ENA   24 drivers/clk/socfpga/clk-pll.c #define SOCFPGA_PLL_EXT_ENA		1