S3C2410_CLKMAN_BASE
if (bus_space_map(iot, S3C2410_CLKMAN_BASE,
S3C2410_CLKMAN_BASE,
uint32_t pllcon = read_reg(S3C2410_CLKMAN_BASE+CLKMAN_MPLLCON);
uint32_t div = read_reg(S3C2410_CLKMAN_BASE+CLKMAN_CLKDIVN);