exynos5250: Get rid of the PWM timer code we shouldn't be using anymore

This code was left over from U-Boot and was superceded by the MCT.

Change-Id: Ia85e3b7281dcdd4740238dddd0dfc6f0ba2c94da
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/63778
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/4401
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

1 files changed, 2 insertions, 60 deletions

diff --git a/src/cpu/samsung/exynos5250/timer.c b/src/cpu/samsung/exynos5250/timer.c
index 405effac5b..0c2e64143c 100644
--- a/src/cpu/samsung/exynos5250/timer.c
+++ b/src/cpu/samsung/exynos5250/timer.c
@@ -18,72 +18,14 @@
  */
 
 #include <console/console.h>
-#include <arch/io.h>
 #include <timer.h>
 #include <delay.h>
-#include "timer.h"
-#include "pwm.h"
-#include "clk.h"
-#include "cpu.h"
-
-static unsigned long long timer_reset_value;
-static unsigned long lastinc;
-
-/* macro to read the 16 bit timer */
-static inline struct s5p_timer *s5p_get_base_timer(void)
-{
-	return samsung_get_base_timer();
-}
 
-/**
- * Read the countdown timer.
- *
- * This operates at 1MHz and counts downwards. It will wrap about every
- * hour (2^32 microseconds).
- *
- * @return current value of timer
- */
-static unsigned long timer_get_us_down(void)
-{
-	struct s5p_timer *const timer = s5p_get_base_timer();
-
-	return readl(&timer->tcnto4);
-}
+#include "clk.h"
 
 void init_timer(void)
 {
-	/* Timer may have been enabled in SPL */
-	if (!pwm_check_enabled(4)) {
-		/* PWM Timer 4 */
-		pwm_init(4, MUX_DIV_4, 0);
-		pwm_config(4, 100000, 100000);
-		pwm_enable(4);
-
-		/* Use this as the current monotonic time in us */
-		timer_reset_value = 0;
-
-		/* Use this as the last timer value we saw */
-		lastinc = timer_get_us_down();
-	}
-}
-
-/*
- * timer without interrupts
- */
-unsigned long get_timer(unsigned long base)
-{
-	unsigned long now = timer_get_us_down();
-
-	/*
-	 * Increment the time by the amount elapsed since the last read.
-	 * The timer may have wrapped around, but it makes no difference to
-	 * our arithmetic here.
-	 */
-	timer_reset_value += lastinc - now;
-	lastinc = now;
-
-	/* Divide by 1000 to convert from us to ms */
-	return timer_reset_value / 1000 - base;
+	mct_start();
 }
 
 /* delay x useconds */