diff --git a/firmware/SOURCES b/firmware/SOURCES
index f43f331df7..1a3a85f4fb 100644
--- a/firmware/SOURCES
+++ b/firmware/SOURCES
@@ -179,6 +179,9 @@ drivers/tuner/s1a0903x01.c
 #if (CONFIG_TUNER & TEA5767)
 drivers/tuner/tea5767.c
 #endif /* (CONFIG_TUNER & TEA5767) */
+#if (CONFIG_TUNER & SI4700)
+drivers/tuner/si4700.c
+#endif /* (CONFIG_TUNER & SI4700) */
 #endif /*SIMULATOR */
 #endif /* CONFIG_TUNER */
 
diff --git a/firmware/drivers/tuner/si4700.c b/firmware/drivers/tuner/si4700.c
new file mode 100644
index 0000000000..9233afae24
--- /dev/null
+++ b/firmware/drivers/tuner/si4700.c
@@ -0,0 +1,47 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Tuner "middleware" for Silicon Labs SI4700 chip
+ *
+ * Copyright (C) 2008 ???
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "config.h"
+#include <stdbool.h>
+#include <string.h>
+#include <stdlib.h>
+#include "kernel.h"
+#include "tuner.h" /* tuner abstraction interface */
+#include "fmradio.h"
+#include "fmradio_i2c.h" /* physical interface driver */
+
+/* tuner abstraction layer: set something to the tuner */
+int si4700_set(int setting, int value)
+{
+    (void)setting;
+    (void)value;
+
+    return 1;
+}
+
+/* tuner abstraction layer: read something from the tuner */
+int si4700_get(int setting)
+{
+    (void)setting;
+
+    return -1;
+}
diff --git a/firmware/export/si4700.h b/firmware/export/si4700.h
new file mode 100644
index 0000000000..a740ae03ab
--- /dev/null
+++ b/firmware/export/si4700.h
@@ -0,0 +1,36 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * $Id$
+ *
+ * Tuner header for the Silicon Labs SI4700
+ *
+ * Copyright (C) 2008 Dave Chapman
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#ifndef _SI4700_H_
+#define _SI4700_H_
+
+int si4700_set(int setting, int value);
+int si4700_get(int setting);
+
+#ifndef CONFIG_TUNER_MULTI
+#define tuner_set si4700_set
+#define tuner_get si4700_get
+#endif
+
+#endif /* _SI4700_H_ */
diff --git a/firmware/export/tuner.h b/firmware/export/tuner.h
index a081472fa1..8f1839a7bb 100644
--- a/firmware/export/tuner.h
+++ b/firmware/export/tuner.h
@@ -102,6 +102,11 @@ extern int (*tuner_get)(int setting);
 #include "tea5767.h"
 #endif
 
+/* Silicon Labs 4700 */
+#if (CONFIG_TUNER & SI4700)
+#include "si4700.h"
+#endif
+
 #endif /* SIMULATOR */
 
 /* Additional messages that get enumerated after tuner driver headers */
diff --git a/firmware/export/usb.h b/firmware/export/usb.h
index 4275fa9c6a..00517b2475 100644
--- a/firmware/export/usb.h
+++ b/firmware/export/usb.h
@@ -64,6 +64,7 @@ enum {
 #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
       (CONFIG_KEYPAD == SANSA_C200_PAD) || \
       (CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
+      (CONFIG_KEYPAD == SANSA_FUZE_PAD) || \
       (CONFIG_KEYPAD == PHILIPS_SA9200_PAD)
 #define USBPOWER_BUTTON BUTTON_SELECT
 #define USBPOWER_BTN_IGNORE BUTTON_POWER
diff --git a/firmware/target/arm/as3525/ata_sd_as3525.c b/firmware/target/arm/as3525/ata_sd_as3525.c
index 828e025870..291b7cbef0 100644
--- a/firmware/target/arm/as3525/ata_sd_as3525.c
+++ b/firmware/target/arm/as3525/ata_sd_as3525.c
@@ -690,4 +690,28 @@ tCardInfo *card_get_info_target(int card_no)
     return &card;
 }
 
+bool card_detect_target(void)
+{
+#ifdef HAVE_HOTSWAP
+    /* TODO */
+    return false;
+#else
+    return false;
+#endif
+}
+
+#ifdef HAVE_HOTSWAP
+void card_enable_monitoring_target(bool on)
+{
+    if (on)
+    {
+        /* TODO */
+    }
+    else
+    {
+        /* TODO */
+    }
+}
+#endif
+
 #endif /* BOOTLOADER */
diff --git a/firmware/target/arm/as3525/pcm-as3525.c b/firmware/target/arm/as3525/pcm-as3525.c
index e2c31ad047..d91450c9cf 100644
--- a/firmware/target/arm/as3525/pcm-as3525.c
+++ b/firmware/target/arm/as3525/pcm-as3525.c
@@ -74,3 +74,49 @@ const void * pcm_play_dma_get_peak_buffer(int *count)
 {
     return NULL;
 }
+
+
+/****************************************************************************
+ ** Recording DMA transfer
+ **/
+#ifdef HAVE_RECORDING
+void pcm_rec_lock(void)
+{
+}
+
+void pcm_rec_unlock(void)
+{
+}
+
+void pcm_record_more(void *start, size_t size)
+{
+    (void)start;
+    (void)size;
+}
+
+void pcm_rec_dma_stop(void)
+{
+}
+
+void pcm_rec_dma_start(void *addr, size_t size)
+{
+    (void)addr;
+    (void)size;
+}
+
+void pcm_rec_dma_close(void)
+{
+}
+
+
+void pcm_rec_dma_init(void)
+{
+}
+
+
+const void * pcm_rec_dma_get_peak_buffer(int *count)
+{
+    (void)count;
+}
+
+#endif /* HAVE_RECORDING */
diff --git a/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c b/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
index 7a5c1156ff..84ef108b62 100644
--- a/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
+++ b/firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
@@ -338,6 +338,11 @@ bool lcd_enabled(void)
     return display_on;
 }
 
+void lcd_sleep(void)
+{
+    /* TODO */
+}
+
 /*** update functions ***/
 
 /* Performance function to blit a YUV bitmap directly to the LCD
diff --git a/firmware/target/arm/as3525/sansa-e200v2/system-target.h b/firmware/target/arm/as3525/sansa-e200v2/system-target.h
index b712d1c124..19ddd03b7c 100644
--- a/firmware/target/arm/as3525/sansa-e200v2/system-target.h
+++ b/firmware/target/arm/as3525/sansa-e200v2/system-target.h
@@ -24,5 +24,7 @@
 #include "system-arm.h"
 
 #define CPUFREQ_MAX    250000000
+#define CPUFREQ_DEFAULT 250000000
+#define CPUFREQ_NORMAL 250000000
 
 #endif /* SYSTEM_TARGET_H */
diff --git a/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c b/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c
index 36006beffb..dd6d4552e0 100644
--- a/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c
+++ b/firmware/target/arm/as3525/sansa-fuze/lcd-fuze.c
@@ -199,8 +199,9 @@ static void _display_on(void)
 }
 
 /* I'm guessing this function is lcd_enable, but it may not be... */
-void lcd_enable(int r0)
+void lcd_enable(bool on)
 {
+    int r0 = on;
 #if 0
     r4 = 0x1db12;
     [r4] = 1;
@@ -249,6 +250,36 @@ void lcd_enable(int r0)
 #endif
 }
 
+bool lcd_enabled(void)
+{
+    return display_on;
+}
+
+void lcd_sleep(void)
+{
+    /* TODO */
+}
+
+/*** update functions ***/
+
+/* Performance function to blit a YUV bitmap directly to the LCD
+ * src_x, src_y, width and height should be even
+ * x, y, width and height have to be within LCD bounds
+ */
+void lcd_blit_yuv(unsigned char * const src[3],
+                  int src_x, int src_y, int stride,
+                  int x, int y, int width, int height)
+{
+    (void)src;
+    (void)src_x;
+    (void)src_y;
+    (void)stride;
+    (void)x;
+    (void)y;
+    (void)width;
+    (void)height;
+}
+
 void lcd_init_device()
 {
     as3525_dbop_init();
diff --git a/firmware/target/arm/as3525/sansa-fuze/system-target.h b/firmware/target/arm/as3525/sansa-fuze/system-target.h
index b712d1c124..553ce90846 100644
--- a/firmware/target/arm/as3525/sansa-fuze/system-target.h
+++ b/firmware/target/arm/as3525/sansa-fuze/system-target.h
@@ -24,5 +24,7 @@
 #include "system-arm.h"
 
 #define CPUFREQ_MAX    250000000
+#define CPUFREQ_DEFAULT 250000000
+#define CPUFREQ_NORMAL  250000000
 
 #endif /* SYSTEM_TARGET_H */
diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c
index 7653985d19..f42387d024 100644
--- a/firmware/target/arm/as3525/system-as3525.c
+++ b/firmware/target/arm/as3525/system-as3525.c
@@ -167,14 +167,16 @@ static void sdram_init(void)
     MPMC_DYNAMIC_tRRD   = 2;
     MPMC_DYNAMIC_tMRD   = 2;
 
-#if defined(SANSA_CLIP) || defined(SANSA_M200V4) || defined(SANSA_FUZE)
-#   define MEMORY_MODEL 0x21
-    /* 16 bits external bus, low power SDRAM, 16 Mbits = 2 Mbytes */
-#elif defined(SANSA_E200V2)
-#   define MEMORY_MODEL 0x5
-    /* 16 bits external bus, high performance SDRAM, 64 Mbits = 8 Mbytes */
+#if defined(SANSA_CLIP) || defined(SANSA_M200V4)
+/* 16 bits external bus, low power SDRAM, 16 Mbits = 2 Mbytes */
+#define MEMORY_MODEL 0x21
+
+#elif defined(SANSA_E200V2) || defined(SANSA_FUZE)
+/* 16 bits external bus, high performance SDRAM, 64 Mbits = 8 Mbytes */
+#define MEMORY_MODEL 0x5
+    
 #else
-#   error "The external memory in your player is unknown"
+#error "The external memory in your player is unknown"
 #endif
 
     MPMC_DYNAMIC_RASCAS_0 = (2<<8)|2; /* CAS & RAS latency = 2 clock cycles */
diff --git a/tools/configure b/tools/configure
index 42015df145..a817f5db67 100755
--- a/tools/configure
+++ b/tools/configure
@@ -1743,7 +1743,7 @@ fi
     target_id=53
     modelname="fuze"
     target="-DSANSA_FUZE"
-    memory=2
+    memory=8
     arm9tdmicc
     bmp2rb_mono="$rootdir/tools/bmp2rb -f 0"
     bmp2rb_native="$rootdir/tools/bmp2rb -f 4"