diff --git a/firmware/target/arm/as3525/sd-as3525v2.c b/firmware/target/arm/as3525/sd-as3525v2.c
index 8134869..26d2d6a 100644
--- a/firmware/target/arm/as3525/sd-as3525v2.c
+++ b/firmware/target/arm/as3525/sd-as3525v2.c
@@ -334,9 +334,6 @@ static long sd_stack [(DEFAULT_STACK_SIZE*2 + 0x200)/sizeof(long)];
 static const char         sd_thread_name[] = "ata/sd";
 static struct mutex       sd_mtx SHAREDBSS_ATTR;
 static struct event_queue sd_queue;
-#ifndef BOOTLOADER
-bool sd_enabled = false;
-#endif
 
 static struct semaphore transfer_completion_signal;
 static struct semaphore command_completion_signal;
@@ -619,7 +616,6 @@ static void sd_thread(void)
 
             if (ev.id == SYS_HOTSWAP_INSERTED)
             {
-                sd_enable(true);
                 microsd_init = sd_init_card(SD_SLOT_AS3525);
                 if (microsd_init < 0) /* initialisation failed */
                     panicf("microSD init failed : %d", microsd_init);
@@ -634,8 +630,6 @@ static void sd_thread(void)
             if (microsd_init)
                 queue_broadcast(SYS_FS_CHANGED, 0);
 
-            sd_enable(false);
-
             /* Access is now safe */
             mutex_unlock(&sd_mtx);
             fat_unlock();
@@ -770,10 +764,6 @@ int sd_init(void)
     create_thread(sd_thread, sd_stack, sizeof(sd_stack), 0,
             sd_thread_name IF_PRIO(, PRIORITY_USER_INTERFACE) IF_COP(, CPU));
 
-#ifndef BOOTLOADER
-    sd_enabled = true;
-    sd_enable(false);
-#endif
     return 0;
 }
 
@@ -794,7 +784,6 @@ static int sd_transfer_sectors(IF_MD2(int drive,) unsigned long start,
 
     mutex_lock(&sd_mtx);
 #ifndef BOOTLOADER
-    sd_enable(true);
     led(true);
 #endif
 
@@ -954,7 +943,6 @@ sd_transfer_retry_with_reinit:
     while (1)
     {
 #ifndef BOOTLOADER
-        sd_enable(false);
         led(false);
 #endif
         mutex_unlock(&sd_mtx);
@@ -1001,24 +989,6 @@ long sd_last_disk_activity(void)
     return last_disk_activity;
 }
 
-void sd_enable(bool on)
-{
-    if (on)
-    {
-        bitset32(&CGU_PERI, CGU_MCI_CLOCK_ENABLE);
-        CGU_IDE |= (1<<7);                  /* AHB interface enable */
-        CGU_MEMSTICK |= (1<<7);             /* interface enable */
-        CGU_SDSLOT |= (1<<7);               /* interface enable */
-    }
-    else
-    {
-        CGU_SDSLOT &= ~(1<<7);              /* interface enable */
-        CGU_MEMSTICK &= ~(1<<7);            /* interface enable */
-        CGU_IDE &= ~(1<<7);                 /* AHB interface enable */
-        bitclr32(&CGU_PERI, CGU_MCI_CLOCK_ENABLE);
-    }
-}
-
 tCardInfo *card_get_info_target(int card_no)
 {
     return &card_info[card_no];