diff --git a/drivers/fpga/ACEX1K.c b/drivers/fpga/ACEX1K.c
index 06b4247..4703fc1 100644
--- a/drivers/fpga/ACEX1K.c
+++ b/drivers/fpga/ACEX1K.c
@@ -48,13 +48,13 @@
 #define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/10		/* 100 ms */
 #endif
 
-static int ACEX1K_ps_load( Altera_desc *desc, void *buf, size_t bsize );
-static int ACEX1K_ps_dump( Altera_desc *desc, void *buf, size_t bsize );
-/* static int ACEX1K_ps_info( Altera_desc *desc ); */
+static int ACEX1K_ps_load(Altera_desc *desc, const void *buf, size_t bsize);
+static int ACEX1K_ps_dump(Altera_desc *desc, const void *buf, size_t bsize);
+/* static int ACEX1K_ps_info(Altera_desc *desc); */
 
 /* ------------------------------------------------------------------------- */
 /* ACEX1K Generic Implementation */
-int ACEX1K_load (Altera_desc * desc, void *buf, size_t bsize)
+int ACEX1K_load(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -74,7 +74,7 @@
 	return ret_val;
 }
 
-int ACEX1K_dump (Altera_desc * desc, void *buf, size_t bsize)
+int ACEX1K_dump(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -103,7 +103,7 @@
 /* ------------------------------------------------------------------------- */
 /* ACEX1K Passive Serial Generic Implementation                                  */
 
-static int ACEX1K_ps_load (Altera_desc * desc, void *buf, size_t bsize)
+static int ACEX1K_ps_load(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume the worst */
 	Altera_ACEX1K_Passive_Serial_fns *fn = desc->iface_fns;
@@ -256,7 +256,7 @@
 	return ret_val;
 }
 
-static int ACEX1K_ps_dump (Altera_desc * desc, void *buf, size_t bsize)
+static int ACEX1K_ps_dump(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	/* Readback is only available through the Slave Parallel and         */
 	/* boundary-scan interfaces.                                         */
diff --git a/drivers/fpga/altera.c b/drivers/fpga/altera.c
index 103d81c..f087d01 100644
--- a/drivers/fpga/altera.c
+++ b/drivers/fpga/altera.c
@@ -45,7 +45,7 @@
 static int altera_validate (Altera_desc * desc, const char *fn);
 
 /* ------------------------------------------------------------------------- */
-int altera_load( Altera_desc *desc, void *buf, size_t bsize )
+int altera_load(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume a failure */
 
@@ -85,7 +85,7 @@
 	return ret_val;
 }
 
-int altera_dump( Altera_desc *desc, void *buf, size_t bsize )
+int altera_dump(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume a failure */
 
diff --git a/drivers/fpga/cyclon2.c b/drivers/fpga/cyclon2.c
index 567099e..26494a3 100644
--- a/drivers/fpga/cyclon2.c
+++ b/drivers/fpga/cyclon2.c
@@ -47,13 +47,13 @@
 #define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/10		/* 100 ms */
 #endif
 
-static int CYC2_ps_load( Altera_desc *desc, void *buf, size_t bsize );
-static int CYC2_ps_dump( Altera_desc *desc, void *buf, size_t bsize );
+static int CYC2_ps_load(Altera_desc *desc, const void *buf, size_t bsize);
+static int CYC2_ps_dump(Altera_desc *desc, const void *buf, size_t bsize);
 /* static int CYC2_ps_info( Altera_desc *desc ); */
 
 /* ------------------------------------------------------------------------- */
 /* CYCLON2 Generic Implementation */
-int CYC2_load (Altera_desc * desc, void *buf, size_t bsize)
+int CYC2_load(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -83,7 +83,7 @@
 	return ret_val;
 }
 
-int CYC2_dump (Altera_desc * desc, void *buf, size_t bsize)
+int CYC2_dump(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -110,7 +110,7 @@
 
 /* ------------------------------------------------------------------------- */
 /* CYCLON2 Passive Serial Generic Implementation                                  */
-static int CYC2_ps_load (Altera_desc * desc, void *buf, size_t bsize)
+static int CYC2_ps_load(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume the worst */
 	Altera_CYC2_Passive_Serial_fns *fn = desc->iface_fns;
@@ -210,7 +210,7 @@
 	return ret_val;
 }
 
-static int CYC2_ps_dump (Altera_desc * desc, void *buf, size_t bsize)
+static int CYC2_ps_dump(Altera_desc *desc, const void *buf, size_t bsize)
 {
 	/* Readback is only available through the Slave Parallel and         */
 	/* boundary-scan interfaces.                                         */
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
index a669039..26d2443 100644
--- a/drivers/fpga/fpga.c
+++ b/drivers/fpga/fpga.c
@@ -52,7 +52,7 @@
 
 /* Local static functions */
 static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum );
-static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate( int devnum, void *buf,
+static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate(int devnum, const void *buf,
 					 size_t bsize, char *fn );
 static int fpga_dev_info( int devnum );
 
@@ -94,7 +94,7 @@
 /* fpga_validate
  *	generic parameter checking code
  */
-static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate( int devnum, void *buf,
+static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate(int devnum, const void *buf,
 					 size_t bsize, char *fn )
 {
 	fpga_desc * desc = fpga_get_desc( devnum );
@@ -212,7 +212,7 @@
 /*
  *	Generic multiplexing code
  */
-int fpga_load( int devnum, void *buf, size_t bsize )
+int fpga_load(int devnum, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;           /* assume failure */
 	fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ );
@@ -252,7 +252,7 @@
 /* fpga_dump
  *	generic multiplexing code
  */
-int fpga_dump( int devnum, void *buf, size_t bsize )
+int fpga_dump(int devnum, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;           /* assume failure */
 	fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ );
diff --git a/drivers/fpga/spartan2.c b/drivers/fpga/spartan2.c
index cd16a9c..4bc7070 100644
--- a/drivers/fpga/spartan2.c
+++ b/drivers/fpga/spartan2.c
@@ -48,17 +48,17 @@
 #define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/100	/* 10 ms */
 #endif
 
-static int Spartan2_sp_load( Xilinx_desc *desc, void *buf, size_t bsize );
-static int Spartan2_sp_dump( Xilinx_desc *desc, void *buf, size_t bsize );
-/* static int Spartan2_sp_info( Xilinx_desc *desc ); */
+static int Spartan2_sp_load(Xilinx_desc *desc, const void *buf, size_t bsize);
+static int Spartan2_sp_dump(Xilinx_desc *desc, const void *buf, size_t bsize);
+/* static int Spartan2_sp_info(Xilinx_desc *desc ); */
 
-static int Spartan2_ss_load( Xilinx_desc *desc, void *buf, size_t bsize );
-static int Spartan2_ss_dump( Xilinx_desc *desc, void *buf, size_t bsize );
-/* static int Spartan2_ss_info( Xilinx_desc *desc ); */
+static int Spartan2_ss_load(Xilinx_desc *desc, const void *buf, size_t bsize);
+static int Spartan2_ss_dump(Xilinx_desc *desc, const void *buf, size_t bsize);
+/* static int Spartan2_ss_info(Xilinx_desc *desc ); */
 
 /* ------------------------------------------------------------------------- */
 /* Spartan-II Generic Implementation */
-int Spartan2_load (Xilinx_desc * desc, void *buf, size_t bsize)
+int Spartan2_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -81,7 +81,7 @@
 	return ret_val;
 }
 
-int Spartan2_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+int Spartan2_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -113,7 +113,7 @@
 /* ------------------------------------------------------------------------- */
 /* Spartan-II Slave Parallel Generic Implementation */
 
-static int Spartan2_sp_load (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Spartan2_sp_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume the worst */
 	Xilinx_Spartan2_Slave_Parallel_fns *fn = desc->iface_fns;
@@ -265,7 +265,7 @@
 	return ret_val;
 }
 
-static int Spartan2_sp_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Spartan2_sp_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume the worst */
 	Xilinx_Spartan2_Slave_Parallel_fns *fn = desc->iface_fns;
@@ -313,7 +313,7 @@
 
 /* ------------------------------------------------------------------------- */
 
-static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Spartan2_ss_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume the worst */
 	Xilinx_Spartan2_Slave_Serial_fns *fn = desc->iface_fns;
@@ -456,7 +456,7 @@
 	return ret_val;
 }
 
-static int Spartan2_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Spartan2_ss_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	/* Readback is only available through the Slave Parallel and         */
 	/* boundary-scan interfaces.                                         */
diff --git a/drivers/fpga/spartan3.c b/drivers/fpga/spartan3.c
index 1dd6f26..9207391 100644
--- a/drivers/fpga/spartan3.c
+++ b/drivers/fpga/spartan3.c
@@ -53,17 +53,17 @@
 #define CONFIG_SYS_FPGA_WAIT CONFIG_SYS_HZ/100	/* 10 ms */
 #endif
 
-static int Spartan3_sp_load( Xilinx_desc *desc, void *buf, size_t bsize );
-static int Spartan3_sp_dump( Xilinx_desc *desc, void *buf, size_t bsize );
-/* static int Spartan3_sp_info( Xilinx_desc *desc ); */
+static int Spartan3_sp_load(Xilinx_desc *desc, const void *buf, size_t bsize);
+static int Spartan3_sp_dump(Xilinx_desc *desc, const void *buf, size_t bsize);
+/* static int Spartan3_sp_info(Xilinx_desc *desc ); */
 
-static int Spartan3_ss_load( Xilinx_desc *desc, void *buf, size_t bsize );
-static int Spartan3_ss_dump( Xilinx_desc *desc, void *buf, size_t bsize );
-/* static int Spartan3_ss_info( Xilinx_desc *desc ); */
+static int Spartan3_ss_load(Xilinx_desc *desc, const void *buf, size_t bsize);
+static int Spartan3_ss_dump(Xilinx_desc *desc, const void *buf, size_t bsize);
+/* static int Spartan3_ss_info(Xilinx_desc *desc); */
 
 /* ------------------------------------------------------------------------- */
 /* Spartan-II Generic Implementation */
-int Spartan3_load (Xilinx_desc * desc, void *buf, size_t bsize)
+int Spartan3_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -86,7 +86,7 @@
 	return ret_val;
 }
 
-int Spartan3_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+int Spartan3_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -118,7 +118,7 @@
 /* ------------------------------------------------------------------------- */
 /* Spartan-II Slave Parallel Generic Implementation */
 
-static int Spartan3_sp_load (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Spartan3_sp_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume the worst */
 	Xilinx_Spartan3_Slave_Parallel_fns *fn = desc->iface_fns;
@@ -272,7 +272,7 @@
 	return ret_val;
 }
 
-static int Spartan3_sp_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Spartan3_sp_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume the worst */
 	Xilinx_Spartan3_Slave_Parallel_fns *fn = desc->iface_fns;
@@ -320,7 +320,7 @@
 
 /* ------------------------------------------------------------------------- */
 
-static int Spartan3_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Spartan3_ss_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume the worst */
 	Xilinx_Spartan3_Slave_Serial_fns *fn = desc->iface_fns;
@@ -475,7 +475,7 @@
 	return ret_val;
 }
 
-static int Spartan3_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Spartan3_ss_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	/* Readback is only available through the Slave Parallel and         */
 	/* boundary-scan interfaces.                                         */
diff --git a/drivers/fpga/virtex2.c b/drivers/fpga/virtex2.c
index d1b4d15..b26d231 100644
--- a/drivers/fpga/virtex2.c
+++ b/drivers/fpga/virtex2.c
@@ -101,13 +101,13 @@
 #define CONFIG_SYS_FPGA_WAIT_CONFIG	CONFIG_SYS_HZ/5	/* 200 ms */
 #endif
 
-static int Virtex2_ssm_load (Xilinx_desc * desc, void *buf, size_t bsize);
-static int Virtex2_ssm_dump (Xilinx_desc * desc, void *buf, size_t bsize);
+static int Virtex2_ssm_load(Xilinx_desc *desc, const void *buf, size_t bsize);
+static int Virtex2_ssm_dump(Xilinx_desc *desc, const void *buf, size_t bsize);
 
-static int Virtex2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize);
-static int Virtex2_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize);
+static int Virtex2_ss_load(Xilinx_desc *desc, const void *buf, size_t bsize);
+static int Virtex2_ss_dump(Xilinx_desc *desc, const void *buf, size_t bsize);
 
-int Virtex2_load (Xilinx_desc * desc, void *buf, size_t bsize)
+int Virtex2_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -129,7 +129,7 @@
 	return ret_val;
 }
 
-int Virtex2_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+int Virtex2_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 
@@ -170,7 +170,7 @@
  *    INIT_B and DONE lines.  If both are high, configuration has
  *    succeeded. Congratulations!
  */
-static int Virtex2_ssm_load (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Virtex2_ssm_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 	Xilinx_Virtex2_Slave_SelectMap_fns *fn = desc->iface_fns;
@@ -369,7 +369,7 @@
 /*
  * Read the FPGA configuration data
  */
-static int Virtex2_ssm_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Virtex2_ssm_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;
 	Xilinx_Virtex2_Slave_SelectMap_fns *fn = desc->iface_fns;
@@ -421,13 +421,13 @@
 	return ret_val;
 }
 
-static int Virtex2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Virtex2_ss_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	printf ("%s: Slave Serial Loading is unsupported\n", __FUNCTION__);
 	return FPGA_FAIL;
 }
 
-static int Virtex2_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+static int Virtex2_ss_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	printf ("%s: Slave Serial Dumping is unsupported\n", __FUNCTION__);
 	return FPGA_FAIL;
diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c
index 08dfdec..4072cb4 100644
--- a/drivers/fpga/xilinx.c
+++ b/drivers/fpga/xilinx.c
@@ -48,7 +48,7 @@
 
 /* ------------------------------------------------------------------------- */
 
-int xilinx_load (Xilinx_desc * desc, void *buf, size_t bsize)
+int xilinx_load(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume a failure */
 
@@ -95,7 +95,7 @@
 	return ret_val;
 }
 
-int xilinx_dump (Xilinx_desc * desc, void *buf, size_t bsize)
+int xilinx_dump(Xilinx_desc *desc, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;	/* assume a failure */