exynos: convert to stopwatch API

Instead of open coding monotonic timer usage,
use the stopwatch API.

BUG=None
BRANCH=None
TEST=None

Change-Id: I1c541c1c9f3fde0dec9163ad6cc94322538ac7f7
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 46ede0897687da6bcf730a8904f25e5a4485d6cd
Original-Change-Id: Ia63a05850a1b6afdc42c2422332f77af516d27e3
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219716
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/8825
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

2 files changed, 6 insertions, 12 deletions

diff --git a/src/soc/samsung/exynos5420/clock.c b/src/soc/samsung/exynos5420/clock.c
index 5cf3583c87..91e61cb2d1 100644
--- a/src/soc/samsung/exynos5420/clock.c
+++ b/src/soc/samsung/exynos5420/clock.c
@@ -561,7 +561,7 @@ int clock_epll_set_rate(unsigned long rate)
 	unsigned int epll_con, epll_con_k;
 	unsigned int i;
 	unsigned int lockcnt;
-	struct mono_time current, end;
+	struct stopwatch sw;
 
 	epll_con = readl(&exynos_clock->epll_con0);
 	epll_con &= ~((EPLL_CON0_LOCK_DET_EN_MASK <<
@@ -595,17 +595,14 @@ int clock_epll_set_rate(unsigned long rate)
 	writel(epll_con, &exynos_clock->epll_con0);
 	writel(epll_con_k, &exynos_clock->epll_con1);
 
-	timer_monotonic_get(&current);
-	end = current;
-	mono_time_add_msecs(&end, TIMEOUT_EPLL_LOCK);
+	stopwatch_init_msecs_expire(&sw, TIMEOUT_EPLL_LOCK);
 
 	while (!(readl(&exynos_clock->epll_con0) &
 			(0x1 << EXYNOS5_EPLLCON0_LOCKED_SHIFT))) {
-		if (mono_time_after(&current, &end)) {
+		if (stopwatch_expired(&sw)) {
 			printk(BIOS_DEBUG, "%s: Timeout waiting for EPLL lock\n", __func__);
 			return -1;
 		}
-		timer_monotonic_get(&current);
 	}
 
 	return 0;
diff --git a/src/soc/samsung/exynos5420/i2c.c b/src/soc/samsung/exynos5420/i2c.c
index 49875d79ed..8c6c361140 100644
--- a/src/soc/samsung/exynos5420/i2c.c
+++ b/src/soc/samsung/exynos5420/i2c.c
@@ -415,16 +415,13 @@ static int hsi2c_check_transfer(struct hsi2c_regs *regs)
  */
 static int hsi2c_wait_for_transfer(struct hsi2c_regs *i2c)
 {
-	struct mono_time current, end;
+	struct stopwatch sw;
 
-	timer_monotonic_get(&current);
-	end = current;
-	mono_time_add_usecs(&end, Hsi2cTimeout * 1000);
-	while (mono_time_before(&current, &end)) {
+	stopwatch_init_msecs_expire(&sw, Hsi2cTimeout);
+	while (!stopwatch_expired(&sw)) {
 		int ret = hsi2c_check_transfer(i2c);
 		if (ret)
 			return ret;
-		timer_monotonic_get(&current);
 	}
 	return 0;
 }