iPod Classic: minor modifications in TIMER

The current behaviour should not change.

Change-Id: Ia8f44cdccf41dbc3881722f9aebab91de51a9bc5

1 files changed, 4 insertions, 7 deletions

diff --git a/firmware/target/arm/s5l8702/kernel-s5l8702.c b/firmware/target/arm/s5l8702/kernel-s5l8702.c
index b39b384696..6a70981c93 100644
--- a/firmware/target/arm/s5l8702/kernel-s5l8702.c
+++ b/firmware/target/arm/s5l8702/kernel-s5l8702.c
@@ -39,19 +39,16 @@ void tick_start(unsigned int interval_in_ms)
 {
     int cycles = 10 * interval_in_ms;
     
-    /* configure timer for 10 kHz (external source) */
+    /* configure timer for 10 kHz (12 MHz / 16 / 75) */
     TBCMD = (1 << 1);   /* TB_CLR */
-    TBPRE = 75 - 1;     /* prescaler */         /* 12 MHz / 16 / 75 = 10 KHz */
+    TBPRE = 75 - 1;     /* prescaler */
     TBCON = (0 << 13) | /* TB_INT1_EN */
             (1 << 12) | /* TB_INT0_EN */
             (0 << 11) | /* TB_START */
-            (2 << 8) |  /* TB_CS = PCLK / 16 */
-            (1 << 6) |  /* UNKNOWN bit */       /* external 12 MHz clock (?) */
+            (2 << 8) |  /* TB_CS = ECLK / 16 */
+            (1 << 6) |  /* select ECLK (12 MHz) */
             (0 << 4);   /* TB_MODE_SEL = interval mode */
     TBDATA0 = cycles;   /* set interval period */
     TBCMD = (1 << 0);   /* TB_EN */
-
-    /* enable timer interrupt */
-    VIC0INTENABLE = 1 << IRQ_TIMER;
 }