diff --git a/boards/common/arduino-mkr/include/periph_conf_common.h b/boards/common/arduino-mkr/include/periph_conf_common.h
index c64724ca5d..c5f22f62d9 100644
--- a/boards/common/arduino-mkr/include/periph_conf_common.h
+++ b/boards/common/arduino-mkr/include/periph_conf_common.h
@@ -91,10 +91,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -105,10 +103,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/boards/common/arduino-zero/include/periph_conf.h b/boards/common/arduino-zero/include/periph_conf.h
index 5d6053d716..1114acadba 100644
--- a/boards/common/arduino-zero/include/periph_conf.h
+++ b/boards/common/arduino-zero/include/periph_conf.h
@@ -92,10 +92,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -106,10 +104,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/boards/common/saml1x/include/periph_conf.h b/boards/common/saml1x/include/periph_conf.h
index 18079ad505..ba5337606f 100644
--- a/boards/common/saml1x/include/periph_conf.h
+++ b/boards/common/saml1x/include/periph_conf.h
@@ -49,7 +49,6 @@ static const tc32_conf_t timer_config[] = {
         .mclk_mask      = MCLK_APBCMASK_TC0 | MCLK_APBCMASK_TC1,
         .gclk_id        = TC0_GCLK_ID,
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER(4),
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
 };
diff --git a/boards/common/sodaq/include/cfg_timer_default.h b/boards/common/sodaq/include/cfg_timer_default.h
index e71484d5b3..da9606a029 100644
--- a/boards/common/sodaq/include/cfg_timer_default.h
+++ b/boards/common/sodaq/include/cfg_timer_default.h
@@ -40,10 +40,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -54,10 +52,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/boards/feather-m0/include/periph_conf.h b/boards/feather-m0/include/periph_conf.h
index adaccac4fc..e5a5f65d64 100644
--- a/boards/feather-m0/include/periph_conf.h
+++ b/boards/feather-m0/include/periph_conf.h
@@ -86,10 +86,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -100,10 +98,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/boards/hamilton/include/periph_conf.h b/boards/hamilton/include/periph_conf.h
index 68d8881736..27a33bf37b 100644
--- a/boards/hamilton/include/periph_conf.h
+++ b/boards/hamilton/include/periph_conf.h
@@ -119,10 +119,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -133,10 +131,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/boards/samd21-xpro/include/periph_conf.h b/boards/samd21-xpro/include/periph_conf.h
index d761c3b7b2..8e477a186d 100644
--- a/boards/samd21-xpro/include/periph_conf.h
+++ b/boards/samd21-xpro/include/periph_conf.h
@@ -105,10 +105,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -119,10 +117,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/boards/same54-xpro/include/periph_conf.h b/boards/same54-xpro/include/periph_conf.h
index bb6ca0c3f0..840da19bb8 100644
--- a/boards/same54-xpro/include/periph_conf.h
+++ b/boards/same54-xpro/include/periph_conf.h
@@ -43,7 +43,6 @@ static const tc32_conf_t timer_config[] = {
         .mclk_mask      = MCLK_APBAMASK_TC0 | MCLK_APBAMASK_TC1,
         .gclk_id        = TC0_GCLK_ID,
         .gclk_src       = SAM0_GCLK_8MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
         .flags          = TC_CTRLA_MODE_COUNT32,
     },
     {   /* Timer 1 */
@@ -53,7 +52,6 @@ static const tc32_conf_t timer_config[] = {
         .mclk_mask      = MCLK_APBBMASK_TC2 | MCLK_APBBMASK_TC3,
         .gclk_id        = TC2_GCLK_ID,
         .gclk_src       = SAM0_GCLK_8MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
 };
diff --git a/boards/saml21-xpro/include/periph_conf.h b/boards/saml21-xpro/include/periph_conf.h
index c66a7d4898..b4e5cea27e 100644
--- a/boards/saml21-xpro/include/periph_conf.h
+++ b/boards/saml21-xpro/include/periph_conf.h
@@ -52,7 +52,6 @@ static const tc32_conf_t timer_config[] = {
         .mclk_mask      = MCLK_APBCMASK_TC0 | MCLK_APBCMASK_TC1,
         .gclk_id        = TC0_GCLK_ID,
         .gclk_src       = SAM0_GCLK_8MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER(3),
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
 };
diff --git a/boards/samr21-xpro/include/periph_conf.h b/boards/samr21-xpro/include/periph_conf.h
index 847103a57c..54807ec70d 100644
--- a/boards/samr21-xpro/include/periph_conf.h
+++ b/boards/samr21-xpro/include/periph_conf.h
@@ -105,10 +105,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -119,10 +117,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/boards/samr30-xpro/include/periph_conf.h b/boards/samr30-xpro/include/periph_conf.h
index 13365f10eb..4d7d6ee1e9 100644
--- a/boards/samr30-xpro/include/periph_conf.h
+++ b/boards/samr30-xpro/include/periph_conf.h
@@ -42,7 +42,6 @@ static const tc32_conf_t timer_config[] = {
         .mclk_mask      = MCLK_APBCMASK_TC0 | MCLK_APBCMASK_TC1,
         .gclk_id        = TC0_GCLK_ID,
         .gclk_src       = SAM0_GCLK_8MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER(3),
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
 };
diff --git a/boards/samr34-xpro/include/periph_conf.h b/boards/samr34-xpro/include/periph_conf.h
index 04e9bf45b9..d305bc49d8 100644
--- a/boards/samr34-xpro/include/periph_conf.h
+++ b/boards/samr34-xpro/include/periph_conf.h
@@ -49,7 +49,6 @@ static const tc32_conf_t timer_config[] = {
         .mclk_mask      = MCLK_APBCMASK_TC0 | MCLK_APBCMASK_TC1,
         .gclk_id        = TC0_GCLK_ID,
         .gclk_src       = SAM0_GCLK_8MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER(3),
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
 };
diff --git a/boards/sensebox_samd21/include/periph_conf.h b/boards/sensebox_samd21/include/periph_conf.h
index 73509b00ba..546119261b 100644
--- a/boards/sensebox_samd21/include/periph_conf.h
+++ b/boards/sensebox_samd21/include/periph_conf.h
@@ -87,10 +87,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -101,10 +99,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/boards/serpente/include/periph_conf.h b/boards/serpente/include/periph_conf.h
index 411abceb5a..7382d5d63d 100644
--- a/boards/serpente/include/periph_conf.h
+++ b/boards/serpente/include/periph_conf.h
@@ -86,10 +86,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TCC2_TC3,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT16,
     },
@@ -100,10 +98,8 @@ static const tc32_conf_t timer_config[] = {
         .gclk_ctrl      = GCLK_CLKCTRL_ID_TC4_TC5,
 #if CLOCK_USE_PLL || CLOCK_USE_XOSC32_DFLL
         .gclk_src       = SAM0_GCLK_1MHZ,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV1,
 #else
         .gclk_src       = SAM0_GCLK_MAIN,
-        .prescaler      = TC_CTRLA_PRESCALER_DIV8,
 #endif
         .flags          = TC_CTRLA_MODE_COUNT32,
     }
diff --git a/cpu/sam0_common/include/periph_cpu_common.h b/cpu/sam0_common/include/periph_cpu_common.h
index e55e2a109b..55ad086a96 100644
--- a/cpu/sam0_common/include/periph_cpu_common.h
+++ b/cpu/sam0_common/include/periph_cpu_common.h
@@ -339,7 +339,6 @@ typedef struct {
     uint16_t gclk_ctrl;     /**< GCLK_CLKCTRL_ID for the Timer */
 #endif
     uint8_t gclk_src;       /**< GCLK source which supplys Timer */
-    uint16_t prescaler;     /**< prescaler used by the Timer */
     uint16_t flags;         /**< flags for CTRA, e.g. TC_CTRLA_MODE_COUNT32 */
 } tc32_conf_t;