From 56c0e646c4f6aeb263d9bff01b3619d81a0b062e Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Wed, 18 Apr 2018 14:03:56 +0200 Subject: timer: cadence: Implement timer_get_boot_us This function is required for adding bootstage support. Also enable it directly for ZynqMP R5 configuration. Signed-off-by: Michal Simek --- drivers/timer/cadence-ttc.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers/timer/cadence-ttc.c') diff --git a/drivers/timer/cadence-ttc.c b/drivers/timer/cadence-ttc.c index 3541e5c841..4125a078b3 100644 --- a/drivers/timer/cadence-ttc.c +++ b/drivers/timer/cadence-ttc.c @@ -31,6 +31,28 @@ struct cadence_ttc_priv { struct cadence_ttc_regs *regs; }; +#if CONFIG_IS_ENABLED(BOOTSTAGE) +ulong timer_get_boot_us(void) +{ + u64 ticks = 0; + u32 rate = 1; + u64 us; + int ret; + + ret = dm_timer_init(); + if (!ret) { + /* The timer is available */ + rate = timer_get_rate(gd->timer); + timer_get_count(gd->timer, &ticks); + } else { + return 0; + } + + us = (ticks * 1000) / rate; + return us; +} +#endif + static int cadence_ttc_get_count(struct udevice *dev, u64 *count) { struct cadence_ttc_priv *priv = dev_get_priv(dev); -- cgit v1.2.1