diff options
Diffstat (limited to 'cpu/arm_cortexa9/db8500/clock.c')
-rw-r--r-- | cpu/arm_cortexa9/db8500/clock.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/cpu/arm_cortexa9/db8500/clock.c b/cpu/arm_cortexa9/db8500/clock.c index 5f771dc0d..7e8be8e7a 100644 --- a/cpu/arm_cortexa9/db8500/clock.c +++ b/cpu/arm_cortexa9/db8500/clock.c @@ -191,6 +191,20 @@ static uint32_t get_pll_freq_khz(uint32_t inclk_khz, uint32_t freq_reg) return phi; } +u32 db8500_clock_cpu_khz(void) +{ + u32 reg, phi; + + reg = readl(PRCM_ARM_CHGCLKREQ_REG); + if (reg & 1) + return 0; /* External clock */ + + reg = readl(PRCM_PLLARM_FREQ_REG); + phi = get_pll_freq_khz(38400, reg); + + return phi; +} + int do_clkinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { uint32_t inclk_khz; |