Make sure that argv[] argument pointers are not modified.

The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands.  Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".

This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:

int main (int argc, char **argv)
{
	while (--argc > 0 && **++argv == '-') {
/* ====> */	while (*++*argv) {
			switch (**argv) {
			case 'd':
				debug++;
				break;
			...
			default:
				usage ();
			}
		}
	}
	...
}

The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell.  With the modification, the compiler will prevent this with
an
	error: increment of read-only location '*argv'

N.B.: The code above can be trivially rewritten like this:

	while (--argc > 0 && **++argv == '-') {
		char *arg = *argv;
		while (*++arg) {
			switch (*arg) {
			...

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>

108 files changed, 275 insertions, 275 deletions

diff --git a/board/BuS/EB+MCF-EV123/EB+MCF-EV123.c b/board/BuS/EB+MCF-EV123/EB+MCF-EV123.c
index 2fc3eafbd8..1f76dd91cc 100644
--- a/board/BuS/EB+MCF-EV123/EB+MCF-EV123.c
+++ b/board/BuS/EB+MCF-EV123/EB+MCF-EV123.c
@@ -193,7 +193,7 @@ int drv_video_init(void)
 /*---------------------------------------------------------------------------*/
 
 #ifdef CONFIG_VIDEO
-int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode = 0;
 	ulong side;
diff --git a/board/BuS/eb_cpux9k2/cpux9k2.c b/board/BuS/eb_cpux9k2/cpux9k2.c
index 1f222756c8..bbceaf37ae 100644
--- a/board/BuS/eb_cpux9k2/cpux9k2.c
+++ b/board/BuS/eb_cpux9k2/cpux9k2.c
@@ -348,7 +348,7 @@ void __led_set(led_id_t mask, int state)
 
 /*---------------------------------------------------------------------------*/
 
-int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode = 0;
 	ulong side;
diff --git a/board/amcc/acadia/cmd_acadia.c b/board/amcc/acadia/cmd_acadia.c
index c427f9ebc6..86f86e2b18 100644
--- a/board/amcc/acadia/cmd_acadia.c
+++ b/board/amcc/acadia/cmd_acadia.c
@@ -38,7 +38,7 @@ static u8 boot_267_nand[] = {
 	0x00, 0x00, 0x00, 0x00
 };
 
-static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u8 chip;
 	u8 *buf;
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c
index 4e12e9af12..c0368c0389 100644
--- a/board/amcc/luan/luan.c
+++ b/board/amcc/luan/luan.c
@@ -207,7 +207,7 @@ static int l2cache_status(void)
  *  int do_l2cache()
  *
  ************************************************************************/
-int do_l2cache( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+int do_l2cache( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[] )
 {
 	switch (argc) {
 	case 2:			/* on / off	*/
diff --git a/board/amcc/makalu/cmd_pll.c b/board/amcc/makalu/cmd_pll.c
index 9bae67e563..3c0dc5f896 100644
--- a/board/amcc/makalu/cmd_pll.c
+++ b/board/amcc/makalu/cmd_pll.c
@@ -178,7 +178,7 @@ test_write(void)
 }
 
 int
-do_pll_alter (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_pll_alter (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char c = '\0';
 	pll_freq_t pll_freq;
diff --git a/board/amcc/taihu/lcd.c b/board/amcc/taihu/lcd.c
index c3dc9837b5..595dee3fcc 100644
--- a/board/amcc/taihu/lcd.c
+++ b/board/amcc/taihu/lcd.c
@@ -129,7 +129,7 @@ int lcd_init(void)
 	return 0;
 }
 
-static int do_lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	out_8((u8 *) LCD_CMD_ADDR, 0x01);
 	udelay(2000);
@@ -137,7 +137,7 @@ static int do_lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -148,7 +148,7 @@ static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_lcd_putc (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_putc (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -159,7 +159,7 @@ static int do_lcd_putc (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_lcd_cur (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_cur (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong count;
 	ulong dir;
diff --git a/board/amcc/taihu/taihu.c b/board/amcc/taihu/taihu.c
index be381d60ac..1682cf7c6a 100644
--- a/board/amcc/taihu/taihu.c
+++ b/board/amcc/taihu/taihu.c
@@ -78,7 +78,7 @@ int checkboard(void)
 	return 0;
 }
 
-static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
+static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[])
 {
 	char stat;
 	int i;
@@ -97,7 +97,7 @@ U_BOOT_CMD (
 	""
 );
 
-static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
+static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[])
 {
 	int led_no;
 
diff --git a/board/amcc/taihu/update.c b/board/amcc/taihu/update.c
index f9c31b3927..b87eac4a1b 100644
--- a/board/amcc/taihu/update.c
+++ b/board/amcc/taihu/update.c
@@ -98,7 +98,7 @@ static uchar buf_66[] =
 	0x00
 };
 
-static int update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char *argv[])
+static int update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong len = 0x20;
 	uchar chip = CONFIG_SYS_I2C_EEPROM_ADDR;
diff --git a/board/amcc/taishan/lcd.c b/board/amcc/taishan/lcd.c
index d432cc3d05..6a049dfbad 100644
--- a/board/amcc/taishan/lcd.c
+++ b/board/amcc/taishan/lcd.c
@@ -152,19 +152,19 @@ int lcd_init(void)
 	return 0;
 }
 
-static int do_lcd_test(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	lcd_init();
 	return 0;
 }
 
-static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	*LCD_CMD_ADDR = 0x01;
 	mdelay(LCD_DELAY_NORMAL_MS);
 	return 0;
 }
-static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -173,7 +173,7 @@ static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	lcd_puts(argv[1]);
 	return 0;
 }
-static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -182,7 +182,7 @@ static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	lcd_putc((char)argv[1][0]);
 	return 0;
 }
-static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong count;
 	ulong dir;
@@ -356,7 +356,7 @@ void set_phy_normal_mode(void)
 }
 #endif	/* 0 - test only */
 
-static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile unsigned int *GpioOr =
 		(volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
@@ -364,7 +364,7 @@ static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile unsigned int *GpioOr =
 		(volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
diff --git a/board/amcc/taishan/showinfo.c b/board/amcc/taishan/showinfo.c
index a9a80e5b6e..587fe74e47 100644
--- a/board/amcc/taishan/showinfo.c
+++ b/board/amcc/taishan/showinfo.c
@@ -161,7 +161,7 @@ void show_xbridge_info(void)
 	printf("PCIL0_XSTS              = %#010lx\n", in32r(PCIL0_STS));
 }
 
-int do_show_xbridge_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_show_xbridge_info(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	show_xbridge_info();
 	return 0;
@@ -215,7 +215,7 @@ void show_pcix_device_info(void)
 }
 
 int do_show_pcix_device_info(cmd_tbl_t * cmdtp, int flag, int argc,
-			     char *argv[])
+			     char * const argv[])
 {
 	show_pcix_device_info();
 	return 0;
@@ -226,7 +226,7 @@ U_BOOT_CMD(xdevinfo, 1, 1, do_show_pcix_device_info,
 
 extern void show_reset_reg(void);
 
-int do_show_reset_reg_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_show_reset_reg_info(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	show_reset_reg();
 	return 0;
diff --git a/board/amcc/taishan/update.c b/board/amcc/taishan/update.c
index aab3a6577c..3f063a05f0 100644
--- a/board/amcc/taishan/update.c
+++ b/board/amcc/taishan/update.c
@@ -68,7 +68,7 @@ static int update_boot_eeprom(void)
 	return 0;
 }
 
-int do_update_boot_eeprom(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_update_boot_eeprom(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	return update_boot_eeprom();
 }
diff --git a/board/amcc/yucca/cmd_yucca.c b/board/amcc/yucca/cmd_yucca.c
index ed6daa3899..cde13e424b 100644
--- a/board/amcc/yucca/cmd_yucca.c
+++ b/board/amcc/yucca/cmd_yucca.c
@@ -31,10 +31,10 @@
 
 extern void print_evb440spe_info(void);
 static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag,
-		int flag, int argc, char *argv[]);
+		int flag, int argc, char * const argv[]);
 
 /* ------------------------------------------------------------------------- */
-int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return setBootStrapClock (cmdtp, 1, flag, argc, argv);
 }
@@ -46,7 +46,7 @@ int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  *	evb440spe wrclk prom0,prom1
  */
 static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
-		int argc, char *argv[])
+		int argc, char * const argv[])
 {
 	uchar	chip;
 	ulong	data;
diff --git a/board/amirix/ap1000/ap1000.c b/board/amirix/ap1000/ap1000.c
index cadfe0b5bc..c8dd99eb4c 100644
--- a/board/amirix/ap1000/ap1000.c
+++ b/board/amirix/ap1000/ap1000.c
@@ -167,7 +167,7 @@ unsigned int get_device (void)
 /*
    This function loads FPGA configurations from the SystemACE CompactFlash
 */
-int do_loadace (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_loadace (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned char *p = (unsigned char *) AP1000_SYSACE_REGBASE;
 	int cfg;
@@ -247,7 +247,7 @@ int do_loadace (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
   *     -1 if failed
   * </pre>
   */
-int do_swconfigbyte (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_swconfigbyte (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned char *sector_buffer = NULL;
 	unsigned char input_char;
@@ -311,7 +311,7 @@ int do_swconfigbyte (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 
 #define ONE_SECOND 1000000
 
-int do_pause (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_pause (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int pause_time;
 	unsigned int delay_time;
@@ -345,7 +345,7 @@ int do_pause (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_swreconfig (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_swreconfig (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	printf ("Triggering software reconfigure (software config byte is 0x%02x)...\n",
 		*((unsigned char *) (SW_BYTE_SECTOR_ADDR + SW_BYTE_SECTOR_OFFSET)));
@@ -365,7 +365,7 @@ int do_swreconfig (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 #define TEMP_ETHERM_BIT 0x02
 #define TEMP_LTHERM_BIT 0x01
 
-int do_temp_sensor (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_temp_sensor (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char cmd;
 	int ret_val = 0;
diff --git a/board/amirix/ap1000/powerspan.c b/board/amirix/ap1000/powerspan.c
index 28e2bbc478..55451b11f0 100644
--- a/board/amirix/ap1000/powerspan.c
+++ b/board/amirix/ap1000/powerspan.c
@@ -364,7 +364,7 @@ int EEPROMWrite (unsigned char theI2CAddress, unsigned char theValue)
 			  &theValue, I2C_WRITE);
 }
 
-int do_eeprom (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_eeprom (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char cmd;
 	int ret_val = 0;
@@ -690,7 +690,7 @@ int SetTargetImage (int theImageIndex, unsigned int theBlockSize,
 	return 0;
 }
 
-int do_bridge (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bridge (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char cmd;
 	int ret_val = 1;
diff --git a/board/barco/barco.c b/board/barco/barco.c
index c5fe8c4708..b8d968b915 100644
--- a/board/barco/barco.c
+++ b/board/barco/barco.c
@@ -288,7 +288,7 @@ void barcobcd_boot (void)
 	do_bootm (NULL,0,2,bootm_args);
 }
 
-int barcobcd_boot_image (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int barcobcd_boot_image (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #if 0
 	if (argc > 1) {
diff --git a/board/bc3450/cmd_bc3450.c b/board/bc3450/cmd_bc3450.c
index 271ffb1d1f..a9e490252d 100644
--- a/board/bc3450/cmd_bc3450.c
+++ b/board/bc3450/cmd_bc3450.c
@@ -173,7 +173,7 @@ int sm501_gpio_init (void)
  * read and prints the dip switch
  * and/or external config inputs (4bits) 0...0x0F
  */
-int cmd_dip (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int cmd_dip (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	vu_long rc = 0;
 
@@ -205,7 +205,7 @@ U_BOOT_CMD (dip, 1, 1, cmd_dip,
  * buz - turns Buzzer on/off
  */
 #ifdef CONFIG_BC3450_BUZZER
-static int cmd_buz (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int cmd_buz (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc != 2) {
 		printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
@@ -236,7 +236,7 @@ U_BOOT_CMD (buz, 2, 1, cmd_buz,
 /*
  * fp - front panel commands
  */
-static int cmd_fp (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int cmd_fp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	sm501_gpio_init ();
 
@@ -491,7 +491,7 @@ static void ds1620_write_state (struct therm *therm)
 	ds1620_out (THERM_START_CONVERT, 0, 0);
 }
 
-static int cmd_temp (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int cmd_temp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	struct therm therm;
@@ -682,7 +682,7 @@ int can_init (void)
  * return 1 on CAN failure
  * return 0 if no failure
  */
-int do_can (char *argv[])
+int do_can (char * const argv[])
 {
 	int i;
 	struct mpc5xxx_mscan *can1 =
@@ -777,7 +777,7 @@ int do_can (char *argv[])
 /*
  * test - BC3450 HW test routines
  */
-int cmd_test (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int cmd_test (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 #ifdef CONFIG_BC3450_CAN
 	int rcode;
diff --git a/board/bf537-stamp/cmd_bf537led.c b/board/bf537-stamp/cmd_bf537led.c
index 317f088497..7d8f3eadff 100644
--- a/board/bf537-stamp/cmd_bf537led.c
+++ b/board/bf537-stamp/cmd_bf537led.c
@@ -80,7 +80,7 @@ int atoi(char *string)
 	return retval;
 }
 
-int do_bf537led(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bf537led(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int led_mask = 0;
 	int led_current_state = 0;
diff --git a/board/cm-bf527/gpio.c b/board/cm-bf527/gpio.c
index dcf641b6a9..7e0babe891 100644
--- a/board/cm-bf527/gpio.c
+++ b/board/cm-bf527/gpio.c
@@ -11,7 +11,7 @@
 
 #include <asm/blackfin.h>
 
-int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc != 3) {
  show_usage:
diff --git a/board/cm-bf537e/flash.c b/board/cm-bf537e/flash.c
index 25aeed264a..a4c1ec06cb 100644
--- a/board/cm-bf537e/flash.c
+++ b/board/cm-bf537e/flash.c
@@ -11,7 +11,7 @@
 #include <asm/blackfin.h>
 #include "gpio_cfi_flash.h"
 
-int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong faddr = CONFIG_SYS_FLASH_BASE;
 	ushort data;
diff --git a/board/cm-bf537u/flash.c b/board/cm-bf537u/flash.c
index ebe17b6531..52abe790ab 100644
--- a/board/cm-bf537u/flash.c
+++ b/board/cm-bf537u/flash.c
@@ -11,7 +11,7 @@
 #include <asm/blackfin.h>
 #include "gpio_cfi_flash.h"
 
-int do_ph(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ph(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong faddr = CONFIG_SYS_FLASH_BASE;
 	ushort data;
diff --git a/board/cm5200/cmd_cm5200.c b/board/cm5200/cmd_cm5200.c
index cd98ae219f..df372d9306 100644
--- a/board/cm5200/cmd_cm5200.c
+++ b/board/cm5200/cmd_cm5200.c
@@ -29,7 +29,7 @@
 
 #ifdef CONFIG_CMD_BSP
 
-static int do_i2c_test(char *argv[])
+static int do_i2c_test(char * const argv[])
 {
 	unsigned char temp, temp1;
 
@@ -57,7 +57,7 @@ static int do_i2c_test(char *argv[])
 	return 0;
 }
 
-static int do_usb_test(char *argv[])
+static int do_usb_test(char * const argv[])
 {
 	int i;
 	static int usb_stor_curr_dev = -1; /* current device */
@@ -90,7 +90,7 @@ static int do_usb_test(char *argv[])
 	return 0;
 }
 
-static int do_led_test(char *argv[])
+static int do_led_test(char * const argv[])
 {
 	int i = 0;
 	struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
@@ -134,7 +134,7 @@ static int do_led_test(char *argv[])
 	return 0;
 }
 
-static int do_rs232_test(char *argv[])
+static int do_rs232_test(char * const argv[])
 {
 	int error_status = 0;
 	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
@@ -397,7 +397,7 @@ static int do_rs232_test(char *argv[])
 	return error_status;
 }
 
-static int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode = -1;
 
diff --git a/board/cm5200/fwupdate.c b/board/cm5200/fwupdate.c
index 5a27191352..c1a4a19cc0 100644
--- a/board/cm5200/fwupdate.c
+++ b/board/cm5200/fwupdate.c
@@ -35,9 +35,9 @@
 
 #include "fwupdate.h"
 
-extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
+extern int do_bootm(cmd_tbl_t *, int, int, char * const []);
 extern long do_fat_read(const char *, void *, unsigned long, int);
-extern int do_fat_fsload(cmd_tbl_t *, int, int, char *[]);
+extern int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
 
 static int load_rescue_image(ulong);
 
@@ -47,7 +47,7 @@ void cm5200_fwupdate(void)
 	char *rsargs;
 	char *tmp = NULL;
 	char ka[16];
-	char *argv[3] = { "bootm", ka, NULL };
+	char * const argv[3] = { "bootm", ka, NULL };
 
 	/* Check if rescue system is disabled... */
 	if (getenv("norescue")) {
@@ -99,7 +99,7 @@ static int load_rescue_image(ulong addr)
 	char *tmp;
 	char dev[7];
 	char addr_str[16];
-	char *argv[6] = { "fatload", "usb", dev, addr_str, nxri, NULL };
+	char * const argv[6] = { "fatload", "usb", dev, addr_str, nxri, NULL };
 	block_dev_desc_t *stor_dev = NULL;
 	cmd_tbl_t *bcmd;
 
diff --git a/board/delta/delta.c b/board/delta/delta.c
index a2942135fd..68c39d23ce 100644
--- a/board/delta/delta.c
+++ b/board/delta/delta.c
@@ -240,7 +240,7 @@ static uchar *key_match (uchar *kbd_data)
 	return (NULL);
 }
 
-int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	char keybd_env[2 * KEYBD_DATALEN + 1];
diff --git a/board/digsy_mtc/cmd_mtc.c b/board/digsy_mtc/cmd_mtc.c
index ecea5b3c54..621980dfce 100644
--- a/board/digsy_mtc/cmd_mtc.c
+++ b/board/digsy_mtc/cmd_mtc.c
@@ -68,7 +68,7 @@ static void mtc_calculate_checksum(tx_msp_cmd *packet)
 		packet->cks += buff[i];
 }
 
-static int do_mtc_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_led(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -120,7 +120,7 @@ static int do_mtc_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_key(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_key(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -142,7 +142,7 @@ static int do_mtc_key(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_digout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_digout(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -171,7 +171,7 @@ static int do_mtc_digout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_digin(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_digin(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -205,7 +205,7 @@ static int do_mtc_digin(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_appreg(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_appreg(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -232,7 +232,7 @@ static int do_mtc_appreg(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_version(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_version(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -254,7 +254,7 @@ static int do_mtc_version(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_state(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_state(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -281,7 +281,7 @@ static int do_mtc_state(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 cmd_tbl_t cmd_mtc_sub[] = {
 	U_BOOT_CMD_MKENT(led, 3, 1, do_mtc_led,
@@ -308,11 +308,11 @@ cmd_tbl_t cmd_mtc_sub[] = {
 	"[command] - get help for command\n"),
 };
 
-static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	extern int _do_help(cmd_tbl_t *cmd_start, int cmd_items,
 			    cmd_tbl_t *cmdtp, int flag,
-			    int argc, char *argv[]);
+			    int argc, char * const argv[]);
 #ifdef CONFIG_SYS_LONGHELP
 	puts("mtc ");
 #endif
@@ -320,7 +320,7 @@ static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 			ARRAY_SIZE(cmd_mtc_sub), cmdtp, flag, argc, argv);
 }
 
-int cmd_mtc(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int cmd_mtc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	cmd_tbl_t *c;
 	int err = 0;
diff --git a/board/eltec/bab7xx/bab7xx.c b/board/eltec/bab7xx/bab7xx.c
index 1f78f8d16e..f5c9777ee1 100644
--- a/board/eltec/bab7xx/bab7xx.c
+++ b/board/eltec/bab7xx/bab7xx.c
@@ -184,7 +184,7 @@ void after_reloc (ulong dest_addr)
  * do_reset is done here because in this case it is board specific, since the
  * 7xx CPUs can only be reset by external HW (the RTC in this case).
  */
-void do_reset (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+void do_reset (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 #if defined(CONFIG_RTC_MK48T59)
 	/* trigger watchdog immediately */
diff --git a/board/eltec/elppc/elppc.c b/board/eltec/elppc/elppc.c
index e73c712cbb..cb9ab86cb0 100644
--- a/board/eltec/elppc/elppc.c
+++ b/board/eltec/elppc/elppc.c
@@ -117,7 +117,7 @@ phys_size_t initdram (int board_type)
  * Register PI in the MPC 107 (at offset 0x41090 of the Embedded Utilities
  * Memory Block).
  */
-int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	out8 (MPC107_EUMB_PI, 1);
 	return (0);
diff --git a/board/esd/apc405/apc405.c b/board/esd/apc405/apc405.c
index 72c0907e01..b58c1ebfad 100644
--- a/board/esd/apc405/apc405.c
+++ b/board/esd/apc405/apc405.c
@@ -37,7 +37,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #undef FPGA_DEBUG
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 extern ulong flash_get_size (ulong base, int banknum);
 
diff --git a/board/esd/ar405/ar405.c b/board/esd/ar405/ar405.c
index a632cb42d6..21b2432c47 100644
--- a/board/esd/ar405/ar405.c
+++ b/board/esd/ar405/ar405.c
@@ -30,7 +30,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /*cmd_boot.c*/
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* ------------------------------------------------------------------------- */
@@ -196,7 +196,7 @@ int checkboard (void)
 /*
  * Some test routines
  */
-int do_digtest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_digtest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int k;
@@ -257,7 +257,7 @@ struct io {
 	short dummy;
 };
 
-int do_anatest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_anatest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	short val;
 	int i;
@@ -353,7 +353,7 @@ void cyclicInt(void *ptr)
 }
 
 
-int do_inctest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_inctest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong *incin;
 	int i;
diff --git a/board/esd/ash405/ash405.c b/board/esd/ash405/ash405.c
index 0615959316..03c409829c 100644
--- a/board/esd/ash405/ash405.c
+++ b/board/esd/ash405/ash405.c
@@ -33,7 +33,7 @@
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
diff --git a/board/esd/canbt/canbt.c b/board/esd/canbt/canbt.c
index 5a3f61de3c..bfec5489d6 100644
--- a/board/esd/canbt/canbt.c
+++ b/board/esd/canbt/canbt.c
@@ -30,7 +30,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /*cmd_boot.c*/
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 
 /* ------------------------------------------------------------------------- */
diff --git a/board/esd/cms700/cms700.c b/board/esd/cms700/cms700.c
index 391fbf4c1b..20346e15ac 100644
--- a/board/esd/cms700/cms700.c
+++ b/board/esd/cms700/cms700.c
@@ -157,7 +157,7 @@ int eeprom_write_enable (unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/common/auto_update.c b/board/esd/common/auto_update.c
index c4a49e2f18..4dfea71966 100644
--- a/board/esd/common/auto_update.c
+++ b/board/esd/common/auto_update.c
@@ -492,7 +492,7 @@ int do_auto_update(void)
 	return 0;
 }
 
-int auto_update(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int auto_update(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	do_auto_update();
 
diff --git a/board/esd/common/cmd_loadpci.c b/board/esd/common/cmd_loadpci.c
index eecae0a7fd..87da27db10 100644
--- a/board/esd/common/cmd_loadpci.c
+++ b/board/esd/common/cmd_loadpci.c
@@ -37,7 +37,7 @@ extern int do_source (cmd_tbl_t *, int, int, char *[]);
 /*
  * Command loadpci: wait for signal from host and boot image.
  */
-int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 *ptr = 0;
 	int count = 0;
diff --git a/board/esd/common/lcd.c b/board/esd/common/lcd.c
index 5c50b4c8dc..9109b64a1c 100644
--- a/board/esd/common/lcd.c
+++ b/board/esd/common/lcd.c
@@ -339,7 +339,7 @@ int lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 	return lcd_bmp(logo_bmp);
 }
 
-int do_esdbmp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_esdbmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 #ifdef CONFIG_VIDEO_SM501
diff --git a/board/esd/common/xilinx_jtag/micro.c b/board/esd/common/xilinx_jtag/micro.c
index 414e82135c..9823e5e8a7 100644
--- a/board/esd/common/xilinx_jtag/micro.c
+++ b/board/esd/common/xilinx_jtag/micro.c
@@ -1828,7 +1828,7 @@ int xsvfExecute(void)
  *               ppzArgv  - array of ptrs to strings (command-line arguments).
  * Returns:      int      - Legacy return value:  1 = success; 0 = error.
  *****************************************************************************/
-int do_cpld(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_cpld(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int     iErrorCode;
 	char*   pzXsvfFileName;
diff --git a/board/esd/cpci2dp/cpci2dp.c b/board/esd/cpci2dp/cpci2dp.c
index 6d9814f163..00456a7003 100644
--- a/board/esd/cpci2dp/cpci2dp.c
+++ b/board/esd/cpci2dp/cpci2dp.c
@@ -149,7 +149,7 @@ int eeprom_write_enable (unsigned dev_addr, int state) {
 #endif
 
 #if defined(CONFIG_SYS_EEPROM_WREN)
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/cpci405/cpci405.c b/board/esd/cpci405/cpci405.c
index 24db8830c7..51d3355816 100644
--- a/board/esd/cpci405/cpci405.c
+++ b/board/esd/cpci405/cpci405.c
@@ -32,7 +32,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void __ft_board_setup(void *blob, bd_t *bd);
 
 #undef FPGA_DEBUG
@@ -650,7 +650,7 @@ int OWReadByte(void)
 	return result;
 }
 
-int do_onewire(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_onewire(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short val;
 	int result;
@@ -698,7 +698,7 @@ U_BOOT_CMD(
 /*
  * Write backplane ip-address...
  */
-int do_get_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_get_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 	char *buf;
@@ -756,7 +756,7 @@ U_BOOT_CMD(
 /*
  * Set and print backplane ip...
  */
-int do_set_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_set_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *buf;
 	char str[32];
diff --git a/board/esd/cpci5200/cpci5200.c b/board/esd/cpci5200/cpci5200.c
index 36fcf7f87d..abac217527 100644
--- a/board/esd/cpci5200/cpci5200.c
+++ b/board/esd/cpci5200/cpci5200.c
@@ -265,7 +265,7 @@ int board_eth_init(bd_t *bis)
 	return pci_eth_init(bis);
 }
 
-int do_writepci(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_writepci(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int addr;
 	unsigned int size;
diff --git a/board/esd/cpci750/cpci750.c b/board/esd/cpci750/cpci750.c
index a199d46182..f9f7c7fdf1 100644
--- a/board/esd/cpci750/cpci750.c
+++ b/board/esd/cpci750/cpci750.c
@@ -562,7 +562,7 @@ int display_mem_map (void)
 /*
  * Command loadpci: wait for signal from host and boot image.
  */
-int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile unsigned int *ptr;
 	int count = 0;
@@ -1056,7 +1056,7 @@ void board_prebootm_init ()
 	dcache_disable ();
 }
 
-int do_show_config(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_show_config(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int reset_sample_low;
 	unsigned int reset_sample_high;
@@ -1091,7 +1091,7 @@ U_BOOT_CMD(
 	"Show Marvell strapping register (ResetSampleLow ResetSampleHigh)"
 );
 
-int do_pldver(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pldver(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("PLD version:0x%02x\n", in_8((void *)CONFIG_SYS_PLD_VER));
 
diff --git a/board/esd/cpci750/sdram_init.c b/board/esd/cpci750/sdram_init.c
index 5347958085..615e32af9f 100644
--- a/board/esd/cpci750/sdram_init.c
+++ b/board/esd/cpci750/sdram_init.c
@@ -1811,7 +1811,7 @@ int set_dfcdlInit (void)
 	return (0);
 }
 
-int do_show_ecc(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_show_ecc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int ecc_counter;
 	unsigned int ecc_addr;
diff --git a/board/esd/cpciiser4/cpciiser4.c b/board/esd/cpciiser4/cpciiser4.c
index ee90e2c28a..dcea50ee8d 100644
--- a/board/esd/cpciiser4/cpciiser4.c
+++ b/board/esd/cpciiser4/cpciiser4.c
@@ -30,7 +30,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 /*cmd_boot.c*/
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 
diff --git a/board/esd/dasa_sim/cmd_dasa_sim.c b/board/esd/dasa_sim/cmd_dasa_sim.c
index 675e5071d7..aa7437695e 100644
--- a/board/esd/dasa_sim/cmd_dasa_sim.c
+++ b/board/esd/dasa_sim/cmd_dasa_sim.c
@@ -204,7 +204,7 @@ static void clearPci9054 (void)
 
 /* ------------------------------------------------------------------------- */
 int do_pci9054 (cmd_tbl_t * cmdtp, int flag, int argc,
-				char *argv[])
+				char * const argv[])
 {
 	if (strcmp (argv[1], "info") == 0) {
 		showPci9054 ();
diff --git a/board/esd/du405/du405.c b/board/esd/du405/du405.c
index f475d11072..aa7ee92a5f 100644
--- a/board/esd/du405/du405.c
+++ b/board/esd/du405/du405.c
@@ -32,7 +32,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 /*cmd_boot.c*/
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 
diff --git a/board/esd/du440/du440.c b/board/esd/du440/du440.c
index 111cce52a2..ba3c97c144 100644
--- a/board/esd/du440/du440.c
+++ b/board/esd/du440/du440.c
@@ -409,7 +409,7 @@ int dcf77_status(void)
 	return mv;
 }
 
-int do_dcf77(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dcf77(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int mv;
 	u32 pin, pinold;
@@ -490,7 +490,7 @@ int usbhub_init(void)
 	return ret;
 }
 
-int do_hubinit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_hubinit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	usbhub_init();
 	return 0;
@@ -573,7 +573,7 @@ int boot_eeprom_write (unsigned dev_addr,
 	return rcode;
 }
 
-int do_setup_boot_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_setup_boot_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong sdsdp[4];
 
@@ -673,7 +673,7 @@ int eeprom_write_enable (unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
@@ -727,7 +727,7 @@ static int pld_interrupt(u32 arg)
 	return rc;
 }
 
-int do_waitpwrirq(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_waitpwrirq(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	got_pldirq = 0;
 
@@ -795,7 +795,7 @@ int dvi_init(void)
 	return ret;
 }
 
-int do_dviinit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dviinit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	dvi_init();
 	return 0;
@@ -810,7 +810,7 @@ U_BOOT_CMD(
  * TODO: 'time' command might be useful for others as well.
  *       Move to 'common' directory.
  */
-int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long long start, end;
 	char c, cmd[CONFIG_SYS_CBSIZE];
@@ -874,7 +874,7 @@ unsigned int prng(unsigned int max)
 	return Y;
 }
 
-int do_gfxdemo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_gfxdemo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int color;
 	unsigned int x, y, dx, dy;
diff --git a/board/esd/hh405/hh405.c b/board/esd/hh405/hh405.c
index 4251d51b2e..ca7868cbd8 100644
--- a/board/esd/hh405/hh405.c
+++ b/board/esd/hh405/hh405.c
@@ -236,7 +236,7 @@ static const SMI_REGS init_regs_1024x768 [] =
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
@@ -733,7 +733,7 @@ int eeprom_write_enable (unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/ocrtc/cmd_ocrtc.c b/board/esd/ocrtc/cmd_ocrtc.c
index 5f3254d252..b59689b0a5 100644
--- a/board/esd/ocrtc/cmd_ocrtc.c
+++ b/board/esd/ocrtc/cmd_ocrtc.c
@@ -33,7 +33,7 @@
 /*
  * Set device number on pci board
  */
-int do_setdevice(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_setdevice(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int idx = 1;	  /* start at 1 (skip device 0) */
 	pci_dev_t bdf = 0;
@@ -62,7 +62,7 @@ U_BOOT_CMD(
 /*
  * Get device number on pci board
  */
-int do_getdevice(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_getdevice(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 device;
 	char str[32];
diff --git a/board/esd/pci405/cmd_pci405.c b/board/esd/pci405/cmd_pci405.c
index 1d14611293..2fc9fda5d2 100644
--- a/board/esd/pci405/cmd_pci405.c
+++ b/board/esd/pci405/cmd_pci405.c
@@ -39,7 +39,7 @@ extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
 /*
  * Command loadpci: wait for signal from host and boot image.
  */
-int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int *ptr = 0;
 	int count = 0;
diff --git a/board/esd/pci405/pci405.c b/board/esd/pci405/pci405.c
index 536485727d..b0d7663b23 100644
--- a/board/esd/pci405/pci405.c
+++ b/board/esd/pci405/pci405.c
@@ -34,7 +34,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /* Prototypes */
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 unsigned long fpga_done_state(void);
 unsigned long fpga_init_state(void);
 
@@ -356,7 +356,7 @@ int wpeeprom(int wp)
 	return wp_state;
 }
 
-int do_wpeeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_wpeeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int wp = -1;
 	if (argc >= 2) {
diff --git a/board/esd/pf5200/pf5200.c b/board/esd/pf5200/pf5200.c
index 4e64e83bf6..83dbfcbbda 100644
--- a/board/esd/pf5200/pf5200.c
+++ b/board/esd/pf5200/pf5200.c
@@ -288,7 +288,7 @@ void power_set_reset(int power)
 	}
 }
 
-int do_poweroff(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_poweroff(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	power_set_reset(1);
 	return (0);
@@ -325,7 +325,7 @@ int phypower(int flag)
 	return (status);
 }
 
-int do_phypower(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_phypower(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int status;
 
@@ -340,7 +340,7 @@ int do_phypower(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(phypower, 2, 2, do_phypower,
 	   "Switch power of ethernet phy", "");
 
-int do_writepci(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_writepci(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int addr;
 	unsigned int size;
diff --git a/board/esd/plu405/plu405.c b/board/esd/plu405/plu405.c
index 0f7fa69a74..3a8a4cff34 100644
--- a/board/esd/plu405/plu405.c
+++ b/board/esd/plu405/plu405.c
@@ -32,7 +32,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
@@ -322,7 +322,7 @@ int eeprom_write_enable(unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/pmc405de/pmc405de.c b/board/esd/pmc405de/pmc405de.c
index 3725ece394..b84e08ad72 100644
--- a/board/esd/pmc405de/pmc405de.c
+++ b/board/esd/pmc405de/pmc405de.c
@@ -374,7 +374,7 @@ int eeprom_write_enable(unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
@@ -417,7 +417,7 @@ U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
 #include <environment.h>
 extern env_t *env_ptr;
 
-int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 pram, nextbase, base;
 	char *v;
@@ -477,7 +477,7 @@ U_BOOT_CMD(
 );
 #endif /* CONFIG_PRAM */
 
-int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct ppc4xx_gpio *gpio0 = (struct ppc4xx_gpio *)GPIO_BASE;
 	setbits_be32(&gpio0->tcr, CONFIG_SYS_GPIO_SELFRST_N);
@@ -489,7 +489,7 @@ U_BOOT_CMD(
 	""
 );
 
-int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct pmc405de_cpld *cpld =
 		(struct pmc405de_cpld *)CONFIG_SYS_CPLD_BASE;
diff --git a/board/esd/pmc440/cmd_pmc440.c b/board/esd/pmc440/cmd_pmc440.c
index 476e940962..200d7ee30d 100644
--- a/board/esd/pmc440/cmd_pmc440.c
+++ b/board/esd/pmc440/cmd_pmc440.c
@@ -67,7 +67,7 @@ int fpga_interrupt(u32 arg)
 	return rc;
 }
 
-int do_waithci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_waithci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
 
@@ -118,7 +118,7 @@ void dump_fifo(pmc440_fpga_t *fpga, int f, int *n)
 	}
 }
 
-int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
 	int i;
@@ -269,7 +269,7 @@ U_BOOT_CMD(
 	"'fifo' or 'address'"
 );
 
-int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong sdsdp[5];
 	ulong delay;
@@ -344,7 +344,7 @@ U_BOOT_CMD(
 #include <environment.h>
 extern env_t *env_ptr;
 
-int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 pram, nextbase, base;
 	char *v;
@@ -404,7 +404,7 @@ U_BOOT_CMD(
 );
 #endif /* CONFIG_PRAM */
 
-int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	in_be32((void*)CONFIG_SYS_RESET_BASE);
 	return 0;
@@ -415,7 +415,7 @@ U_BOOT_CMD(
 	""
 );
 
-int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
 
@@ -452,7 +452,7 @@ U_BOOT_CMD(
 	""
 );
 
-int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (is_monarch()) {
 		printf("This command is only supported in non-monarch mode\n");
@@ -485,7 +485,7 @@ U_BOOT_CMD(
 );
 
 /* test-only */
-int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong pciaddr;
 
@@ -518,7 +518,7 @@ U_BOOT_CMD(
 );
 
 #if defined(CONFIG_SYS_EEPROM_WREN)
-int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/tasreg/tasreg.c b/board/esd/tasreg/tasreg.c
index bd9fb2fc2b..270caac08c 100644
--- a/board/esd/tasreg/tasreg.c
+++ b/board/esd/tasreg/tasreg.c
@@ -29,7 +29,7 @@
 
 
 /* Prototypes */
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len);
 int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len);
 
@@ -219,7 +219,7 @@ int i2c_probe(uchar addr);
 
 /*
  */
-int do_iploop(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_iploop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 
@@ -254,7 +254,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_codec(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_codec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar buf[8];
 
@@ -307,7 +307,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_saa(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_saa(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	ulong instr;
@@ -340,7 +340,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_iwrite(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_iwrite(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	ulong data0;
@@ -379,7 +379,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_iread(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_iread(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	ulong cnt;
@@ -411,7 +411,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_ireadl(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ireadl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	uchar buf[32];
diff --git a/board/esd/vme8349/caddy.c b/board/esd/vme8349/caddy.c
index bda41177d9..ca8357d100 100644
--- a/board/esd/vme8349/caddy.c
+++ b/board/esd/vme8349/caddy.c
@@ -53,7 +53,7 @@ void generate_answer(struct caddy_cmd *cmd, uint32_t status, uint32_t *result)
 		caddy_interface->answer_in = ptr;
 }
 
-int do_caddy(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_caddy(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long base_addr;
 	uint32_t ptr;
diff --git a/board/esd/voh405/voh405.c b/board/esd/voh405/voh405.c
index a5600de6fc..6ed493ea66 100644
--- a/board/esd/voh405/voh405.c
+++ b/board/esd/voh405/voh405.c
@@ -33,7 +33,7 @@
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
@@ -356,7 +356,7 @@ int eeprom_write_enable (unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/wuh405/wuh405.c b/board/esd/wuh405/wuh405.c
index 01966eec26..704cd02702 100644
--- a/board/esd/wuh405/wuh405.c
+++ b/board/esd/wuh405/wuh405.c
@@ -32,7 +32,7 @@
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
 const unsigned char fpgadata[] =
diff --git a/board/evb64260/zuma_pbb.c b/board/evb64260/zuma_pbb.c
index cab4fcae17..aa15fa015c 100644
--- a/board/evb64260/zuma_pbb.c
+++ b/board/evb64260/zuma_pbb.c
@@ -174,14 +174,14 @@ static int last_cmd = 4;		/* write increment */
 static int last_size = 64;
 
 int
-do_zuma_init_pbb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_zuma_init_pbb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	zuma_init_pbb ();
 	return 0;
 }
 
 int
-do_zuma_test_dma (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_zuma_test_dma (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc > 1) {
 		last_cmd = simple_strtoul (argv[1], NULL, 10);
@@ -194,7 +194,7 @@ do_zuma_test_dma (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 int
-do_zuma_init_mbox (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_zuma_init_mbox (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	zuma_mbox_init ();
 	return 0;
diff --git a/board/freescale/common/ngpixis.c b/board/freescale/common/ngpixis.c
index bb6794e859..a135fbe5ef 100644
--- a/board/freescale/common/ngpixis.c
+++ b/board/freescale/common/ngpixis.c
@@ -92,7 +92,7 @@ void set_altbank(void)
 }
 
 
-int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int i;
 	char *p_altbank = NULL;
diff --git a/board/freescale/common/pixis.c b/board/freescale/common/pixis.c
index 119eaf95af..a35b5cfe3e 100644
--- a/board/freescale/common/pixis.c
+++ b/board/freescale/common/pixis.c
@@ -284,7 +284,7 @@ static void set_px_go_with_watchdog(void)
  *
  */
 static int pixis_disable_watchdog_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
-				      char *argv[])
+				      char * const argv[])
 {
 	/* Disable the VELA sequencer and the watchdog */
 	clrbits_8(pixis_base + PIXIS_VCTL, 9);
@@ -302,7 +302,7 @@ U_BOOT_CMD(
 
 /* Enable or disable SGMII mode for a TSEC
  */
-static int pixis_set_sgmii(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int pixis_set_sgmii(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int which_tsec = -1;
 	unsigned char mask;
@@ -430,7 +430,7 @@ static unsigned long strfractoint(char *strptr)
 	return intval + decval;
 }
 
-static int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int i;
 	char *p_cf = NULL;
diff --git a/board/freescale/common/sys_eeprom.c b/board/freescale/common/sys_eeprom.c
index 661015e000..5a8f4f5810 100644
--- a/board/freescale/common/sys_eeprom.c
+++ b/board/freescale/common/sys_eeprom.c
@@ -314,7 +314,7 @@ static void set_mac_address(unsigned int index, const char *string)
 	update_crc();
 }
 
-int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char cmd;
 
diff --git a/board/freescale/m5249evb/m5249evb.c b/board/freescale/m5249evb/m5249evb.c
index b1ccbebde5..ac1937b338 100644
--- a/board/freescale/m5249evb/m5249evb.c
+++ b/board/freescale/m5249evb/m5249evb.c
@@ -28,7 +28,7 @@
 
 
 /* Prototypes */
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 int checkboard (void) {
 	ulong val;
diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
index a7b7f45458..0b7f787e5d 100644
--- a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
+++ b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
@@ -111,7 +111,7 @@ void mpc8610hpcd_diu_init(void)
 }
 
 int mpc8610diu_init_show_bmp(cmd_tbl_t *cmdtp,
-			     int flag, int argc, char *argv[])
+			     int flag, int argc, char * const argv[])
 {
 	unsigned int addr;
 
diff --git a/board/funkwerk/vovpn-gw/vovpn-gw.c b/board/funkwerk/vovpn-gw/vovpn-gw.c
index 8c4abdd370..889ba3f074 100644
--- a/board/funkwerk/vovpn-gw/vovpn-gw.c
+++ b/board/funkwerk/vovpn-gw/vovpn-gw.c
@@ -306,7 +306,7 @@ int misc_init_r (void)
 
 #if defined(CONFIG_HAVE_OWN_RESET)
 int
-do_reset (void *cmdtp, int flag, int argc, char *argv[])
+do_reset (void *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile ioport_t *iop;
 
diff --git a/board/g2000/g2000.c b/board/g2000/g2000.c
index 03cd6b8847..8b15e51f1d 100644
--- a/board/g2000/g2000.c
+++ b/board/g2000/g2000.c
@@ -148,7 +148,7 @@ phys_size_t initdram (int board_type)
 }
 
 #if 0 /* test-only !!! */
-int do_dumpebc(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dumpebc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong ap, cr;
 
@@ -174,7 +174,7 @@ U_BOOT_CMD(
 );
 
 
-int do_dumpdcr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dumpdcr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 
@@ -196,7 +196,7 @@ U_BOOT_CMD(
 );
 
 
-int do_dumpspr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dumpspr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("\nSpecial Purpose Registers (SPR's) for PPC405GP:");
 	printf("\n%04x %08x ", 947, mfspr(947));
diff --git a/board/hymod/bsp.c b/board/hymod/bsp.c
index 262070fdff..5dd0311d41 100644
--- a/board/hymod/bsp.c
+++ b/board/hymod/bsp.c
@@ -141,7 +141,7 @@ fpga_load (int mezz, uchar *addr, ulong size)
 
 /* ------------------------------------------------------------------------- */
 int
-do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar *addr, *save_addr;
 	ulong size;
@@ -301,7 +301,7 @@ U_BOOT_CMD(
 );
 /* ------------------------------------------------------------------------- */
 int
-do_eecl (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_eecl (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar data[HYMOD_EEPROM_SIZE];
 	uint addr = CONFIG_SYS_I2C_EEPROM_ADDR;
@@ -346,7 +346,7 @@ U_BOOT_CMD(
 /* ------------------------------------------------------------------------- */
 
 int
-do_htest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_htest (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #if 0
 	int rc;
diff --git a/board/inka4x0/inkadiag.c b/board/inka4x0/inkadiag.c
index 0a75abde3f..637bb5a7b3 100644
--- a/board/inka4x0/inkadiag.c
+++ b/board/inka4x0/inkadiag.c
@@ -131,7 +131,7 @@ static void inka_digio_set_output(unsigned int state, int which)
 }
 
 static int do_inkadiag_io(cmd_tbl_t *cmdtp, int flag, int argc,
-			  char *argv[]) {
+			  char * const argv[]) {
 	unsigned int state, val;
 
 	switch (argc) {
@@ -237,7 +237,7 @@ static int ser_getc(volatile struct mpc5xxx_psc *psc)
 }
 
 static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc,
-			      char *argv[]) {
+			      char * const argv[]) {
 	volatile struct NS16550 *uart;
 	volatile struct mpc5xxx_psc *psc;
 	unsigned int num, mode;
@@ -389,7 +389,7 @@ static void buzzer_turn_off(void)
 }
 
 static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
-			      char *argv[]) {
+			      char * const argv[]) {
 
 	unsigned int period, freq;
 	int prev, i;
@@ -435,7 +435,7 @@ static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
 	return 0;
 }
 
-static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 cmd_tbl_t cmd_inkadiag_sub[] = {
 	U_BOOT_CMD_MKENT(io, 1, 1, do_inkadiag_io, "read digital input",
@@ -450,10 +450,10 @@ cmd_tbl_t cmd_inkadiag_sub[] = {
 };
 
 static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag,
-			    int argc, char *argv[]) {
+			    int argc, char * const argv[]) {
 	extern int _do_help (cmd_tbl_t *cmd_start, int cmd_items,
 			     cmd_tbl_t *cmdtp, int flag,
-			     int argc, char *argv[]);
+			     int argc, char * const argv[]);
 	/* do_help prints command name - we prepend inkadiag to our subcommands! */
 #ifdef CONFIG_SYS_LONGHELP
 	puts ("inkadiag ");
@@ -463,7 +463,7 @@ static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag,
 }
 
 static int do_inkadiag(cmd_tbl_t *cmdtp, int flag, int argc,
-		       char *argv[]) {
+		       char * const argv[]) {
 	cmd_tbl_t *c;
 
 	c = find_cmd_tbl(argv[1], &cmd_inkadiag_sub[0], ARRAY_SIZE(cmd_inkadiag_sub));
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c
index 53cf474767..3a33b5a511 100644
--- a/board/keymile/km_arm/km_arm.c
+++ b/board/keymile/km_arm/km_arm.c
@@ -183,7 +183,7 @@ int board_init(void)
 }
 
 #if defined(CONFIG_CMD_SF)
-int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 tmp;
 	if (argc < 2) {
diff --git a/board/lwmon/lwmon.c b/board/lwmon/lwmon.c
index 8e27778939..61a1e1417f 100644
--- a/board/lwmon/lwmon.c
+++ b/board/lwmon/lwmon.c
@@ -791,7 +791,7 @@ void lcd_show_board_info(void)
 #if defined(CONFIG_CMD_BSP)
 /***********************************************************************
 F* Function:     int do_pic (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -800,7 +800,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -816,7 +816,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_pic (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pic (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar reg, val;
 
@@ -857,7 +857,7 @@ U_BOOT_CMD(
 
 /***********************************************************************
 F* Function:     int do_kbd (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -866,7 +866,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -881,7 +881,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	char keybd_env[2 * KEYBD_DATALEN + 1];
@@ -918,7 +918,7 @@ U_BOOT_CMD(
 
 /***********************************************************************
 F* Function:     int do_lsb (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -927,7 +927,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -944,7 +944,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_lsb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_lsb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar val;
 	immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
diff --git a/board/lwmon5/kbd.c b/board/lwmon5/kbd.c
index be1a1dfeb5..0e26b890b2 100644
--- a/board/lwmon5/kbd.c
+++ b/board/lwmon5/kbd.c
@@ -380,7 +380,7 @@ static uchar *key_match (uchar *kbd_data)
 
 /***********************************************************************
 F* Function:     int do_kbd (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -389,7 +389,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -404,7 +404,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	char keybd_env[2 * KEYBD_DATALEN + 1];
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c
index 415e036c00..3948c13b64 100644
--- a/board/lwmon5/lwmon5.c
+++ b/board/lwmon5/lwmon5.c
@@ -304,7 +304,7 @@ void hw_watchdog_reset(void)
 	gpio_write_bit(CONFIG_SYS_GPIO_WATCHDOG, val);
 }
 
-int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
diff --git a/board/micronas/vct/smc_eeprom.c b/board/micronas/vct/smc_eeprom.c
index 6587f13e2f..b5a552134e 100644
--- a/board/micronas/vct/smc_eeprom.c
+++ b/board/micronas/vct/smc_eeprom.c
@@ -316,7 +316,7 @@ DONE:
 	return result;
 }
 
-static int do_eeprom_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_eeprom_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unchar data = 0, index = 0;
 	ulong gpio_old_val;
@@ -337,14 +337,14 @@ static int do_eeprom_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_eeprom_erase_all(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_eeprom_erase_all(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	eeprom_erase_all();
 
 	return 0;
 }
 
-static int do_eeprom_save_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_eeprom_save_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong hi16, lo32;
 	unchar ethaddr[6], i;
diff --git a/board/mpl/common/common_util.c b/board/mpl/common/common_util.c
index 32bf244935..a3722b2024 100644
--- a/board/mpl/common/common_util.c
+++ b/board/mpl/common/common_util.c
@@ -428,7 +428,7 @@ void check_env(void)
 
 #endif /* #if !defined(CONFIG_PATI) */
 
-int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong size,src,ld_addr;
 	int result;
diff --git a/board/mpl/mip405/cmd_mip405.c b/board/mpl/mip405/cmd_mip405.c
index cd93a7ca0b..8ddb54db1c 100644
--- a/board/mpl/mip405/cmd_mip405.c
+++ b/board/mpl/mip405/cmd_mip405.c
@@ -30,12 +30,12 @@
 
 
 extern void print_mip405_info(void);
-extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 
 /* ------------------------------------------------------------------------- */
 
-int do_mip405(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mip405(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 
 	ulong led_on;
diff --git a/board/mpl/pati/cmd_pati.c b/board/mpl/pati/cmd_pati.c
index 740881e6d4..aba11d5a75 100644
--- a/board/mpl/pati/cmd_pati.c
+++ b/board/mpl/pati/cmd_pati.c
@@ -31,7 +31,7 @@
 #include "pci_eeprom.h"
 
 extern void show_pld_regs(void);
-extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 extern void user_led0(int led_on);
 extern void user_led1(int led_on);
@@ -355,7 +355,7 @@ static void display_pci_regs(void)
 }
 
 
-int do_pati(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pati(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (strcmp(argv[1], "info") == 0)
 	{
diff --git a/board/mpl/pip405/cmd_pip405.c b/board/mpl/pip405/cmd_pip405.c
index 6bbae89e5d..554c8d1d72 100644
--- a/board/mpl/pip405/cmd_pip405.c
+++ b/board/mpl/pip405/cmd_pip405.c
@@ -30,12 +30,12 @@
 
 
 extern void print_pip405_info(void);
-extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 
 /* ------------------------------------------------------------------------- */
 
-int do_pip405(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pip405(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 
 	ulong led_on,led_nr;
diff --git a/board/mpl/vcma9/cmd_vcma9.c b/board/mpl/vcma9/cmd_vcma9.c
index 0ee959507f..0d5f46e5cd 100644
--- a/board/mpl/vcma9/cmd_vcma9.c
+++ b/board/mpl/vcma9/cmd_vcma9.c
@@ -50,11 +50,11 @@ extern int vcma9_nanderase(void);
 extern int vcma9_nandread(ulong);
 extern int vcma9_nandwrite(ulong);
 extern int vcma9_dactest(int);
-extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* ------------------------------------------------------------------------- */
 
-int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct eth_device *dev;
 	char cs8900_name[10];
diff --git a/board/netstar/crcit.c b/board/netstar/crcit.c
index 0eef41a11e..a16264914c 100644
--- a/board/netstar/crcit.c
+++ b/board/netstar/crcit.c
@@ -71,7 +71,7 @@ static int do_crc(char *path, unsigned version)
 	return EXIT_SUCCESS;
 }
 
-int main(int argc, char **argv)
+int main(int argc, char * const *argv)
 {
 	if (argc == 2) {
 		return do_crc(argv[1], 0);
diff --git a/board/netstar/eeprom.c b/board/netstar/eeprom.c
index aca4458e29..aa375a4b1a 100644
--- a/board/netstar/eeprom.c
+++ b/board/netstar/eeprom.c
@@ -149,7 +149,7 @@ static int parse_element(char *s, unsigned char *buf, int len)
 	return cnt;
 }
 
-int eeprom(int argc, char *argv[])
+int eeprom(int argc, char * const argv[])
 {
 	int i, len, ret;
 	unsigned char buf[58], *p;
diff --git a/board/pcippc2/pcippc2.c b/board/pcippc2/pcippc2.c
index 6ee44d691d..199def4678 100644
--- a/board/pcippc2/pcippc2.c
+++ b/board/pcippc2/pcippc2.c
@@ -69,7 +69,7 @@ phys_size_t initdram (int board_type)
 	return cpc710_ram_init ();
 }
 
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	out32 (REG (CPC0, SPOR), 0);
 	iobarrier_rw ();
@@ -206,7 +206,7 @@ void watchdog_reset (void)
 }
 
 #if defined(CONFIG_CMD_BSP)
-int do_wd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_wd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	switch (argc) {
 	case 1:
diff --git a/board/pcs440ep/pcs440ep.c b/board/pcs440ep/pcs440ep.c
index a6885d6895..d7adff2f8e 100644
--- a/board/pcs440ep/pcs440ep.c
+++ b/board/pcs440ep/pcs440ep.c
@@ -567,7 +567,7 @@ void hw_watchdog_reset(void)
  * "led" Commando for the U-Boot shell
  *
  ************************************************************************/
-int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int	rcode = 0, i;
 	ulong	pattern = 0;
@@ -611,7 +611,7 @@ U_BOOT_CMD(
  * "sha1" Commando for the U-Boot shell
  *
  ************************************************************************/
-int do_sha1 (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sha1 (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int	rcode = -1;
 
diff --git a/board/pdm360ng/pdm360ng.c b/board/pdm360ng/pdm360ng.c
index 8fe5ac874e..29a095d738 100644
--- a/board/pdm360ng/pdm360ng.c
+++ b/board/pdm360ng/pdm360ng.c
@@ -633,7 +633,7 @@ static int set_lcd_brightness(char *brightness)
 }
 
 static int cmd_lcd_brightness(cmd_tbl_t *cmdtp, int flag,
-			      int argc, char *argv[])
+			      int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
diff --git a/board/pn62/cmd_pn62.c b/board/pn62/cmd_pn62.c
index 43295d6e36..73294351ba 100644
--- a/board/pn62/cmd_pn62.c
+++ b/board/pn62/cmd_pn62.c
@@ -36,7 +36,7 @@ extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
 /*
  * Command led: controls the various LEDs 0..11 on the PN62 card.
  */
-int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     unsigned int number, function;
 
@@ -64,7 +64,7 @@ U_BOOT_CMD(
 #define CMD_MOVE_WINDOW 0x1
 #define CMD_BOOT_IMAGE  0x2
 
-int do_loadpci (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *s;
     ulong addr = 0, count = 0;
diff --git a/board/ppmc7xx/ppmc7xx.c b/board/ppmc7xx/ppmc7xx.c
index 944cd4ddc6..0cad897349 100644
--- a/board/ppmc7xx/ppmc7xx.c
+++ b/board/ppmc7xx/ppmc7xx.c
@@ -89,7 +89,7 @@ int misc_init_r( void )
  *
  * Shell command to reset the board.
  */
-void do_reset( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+void do_reset( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[] )
 {
 	printf( "Resetting...\n" );
 
diff --git a/board/prodrive/pdnb3/pdnb3.c b/board/prodrive/pdnb3/pdnb3.c
index 69f8f9bbca..3f2deed1e2 100644
--- a/board/prodrive/pdnb3/pdnb3.c
+++ b/board/prodrive/pdnb3/pdnb3.c
@@ -29,7 +29,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /* Prototypes */
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* predefine these here for FPGA programming (before including fpga.c) */
 #define SET_FPGA(data)	*IXP425_GPIO_GPOUTR = (data)
@@ -210,7 +210,7 @@ int do_fpga_boot(unsigned char *fpgadata)
 	return (0);
 }
 
-int do_fpga(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fpga(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 
diff --git a/board/pxa255_idp/pxa_idp.c b/board/pxa255_idp/pxa_idp.c
index 05e30ecf00..a54a95dca9 100644
--- a/board/pxa255_idp/pxa_idp.c
+++ b/board/pxa255_idp/pxa_idp.c
@@ -122,7 +122,7 @@ void blink_c(void)
 	GPCR0 = led_bit;
 }
 
-int do_idpcmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_idpcmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("IDPCMD started\n");
 	return 0;
diff --git a/board/r360mpi/r360mpi.c b/board/r360mpi/r360mpi.c
index 703af73aad..b5315ad041 100644
--- a/board/r360mpi/r360mpi.c
+++ b/board/r360mpi/r360mpi.c
@@ -391,7 +391,7 @@ static uchar *key_match (uchar * kbd_str)
 #endif	/* CONFIG_PREBOOT */
 
 /* Read Keyboard status */
-int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	uchar keybd_env[2 * KEYBD_DATALEN + 1];
diff --git a/board/renesas/sh7785lcr/rtl8169_mac.c b/board/renesas/sh7785lcr/rtl8169_mac.c
index 634efb42a8..dae01ec773 100644
--- a/board/renesas/sh7785lcr/rtl8169_mac.c
+++ b/board/renesas/sh7785lcr/rtl8169_mac.c
@@ -298,7 +298,7 @@ void mac_read(void)
 		data[0], data[1], data[2], data[3], data[4], data[5]);
 }
 
-int do_set_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_set_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	unsigned char mac[6];
@@ -328,7 +328,7 @@ U_BOOT_CMD(
 	"setmac <mac address> - write MAC address for RTL8110SCL"
 );
 
-int do_print_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_print_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc != 1) {
 		cmd_usage(cmdtp);
diff --git a/board/renesas/sh7785lcr/selfcheck.c b/board/renesas/sh7785lcr/selfcheck.c
index e803b3c9c1..44247c850f 100644
--- a/board/renesas/sh7785lcr/selfcheck.c
+++ b/board/renesas/sh7785lcr/selfcheck.c
@@ -108,7 +108,7 @@ static void test_pci(void)
 	printf("PCI CN2 ID = %08x\n", readl(0xfe040220));
 }
 
-int do_hw_test(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_hw_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *cmd;
 
diff --git a/board/renesas/sh7785lcr/sh7785lcr.c b/board/renesas/sh7785lcr/sh7785lcr.c
index 9948d04eae..cad3905ff2 100644
--- a/board/renesas/sh7785lcr/sh7785lcr.c
+++ b/board/renesas/sh7785lcr/sh7785lcr.c
@@ -56,7 +56,7 @@ int board_eth_init(bd_t *bis)
 }
 
 #if defined(CONFIG_SH_32BIT)
-int do_pmb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pmb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	/* clear ITLB */
 	writel(0x00000004, 0xff000010);
diff --git a/board/sacsng/sacsng.c b/board/sacsng/sacsng.c
index 49d8bba15d..8edca59c18 100644
--- a/board/sacsng/sacsng.c
+++ b/board/sacsng/sacsng.c
@@ -38,7 +38,7 @@
 extern void eth_loopback_test(void);
 #endif /* CONFIG_ETHER_LOOPBACK_TEST */
 
-extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 #include "clkinit.h"
 #include "ioconfig.h" /* I/O configuration table */
diff --git a/board/sandburst/common/ppc440gx_i2c.c b/board/sandburst/common/ppc440gx_i2c.c
index d286714919..68acdd8d14 100644
--- a/board/sandburst/common/ppc440gx_i2c.c
+++ b/board/sandburst/common/ppc440gx_i2c.c
@@ -465,7 +465,7 @@ void i2c_reg_write1(uchar i2c_addr, uchar reg, uchar val)
 }
 
 
-int do_i2c1_probe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_i2c1_probe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int j;
 #if defined(CONFIG_SYS_I2C_NOPROBES)
diff --git a/board/sandburst/karef/karef.c b/board/sandburst/karef/karef.c
index 92b15aa50f..6457f9b1f8 100644
--- a/board/sandburst/karef/karef.c
+++ b/board/sandburst/karef/karef.c
@@ -518,7 +518,7 @@ void fpga_init(void)
 	return;
 }
 
-int karefSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int karefSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short sernum;
 	char envstr[255];
@@ -578,7 +578,7 @@ int karefSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return(1);
 }
 
-int karefRecover(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int karefRecover(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short sernum;
 	char envstr[255];
diff --git a/board/sandburst/metrobox/metrobox.c b/board/sandburst/metrobox/metrobox.c
index 0c8e6dfb1e..76d8293fd6 100644
--- a/board/sandburst/metrobox/metrobox.c
+++ b/board/sandburst/metrobox/metrobox.c
@@ -485,7 +485,7 @@ void fpga_init(void)
 	return;
 }
 
-int metroboxSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int metroboxSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short sernum;
 	char envstr[255];
@@ -545,7 +545,7 @@ int metroboxSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return(1);
 }
 
-int metroboxRecover(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int metroboxRecover(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short sernum;
 	char envstr[255];
diff --git a/board/siemens/common/fpga.c b/board/siemens/common/fpga.c
index 4b45902aa2..5660c09148 100644
--- a/board/siemens/common/fpga.c
+++ b/board/siemens/common/fpga.c
@@ -222,7 +222,7 @@ static int fpga_load (fpga_t* fpga, ulong addr, int checkall)
 
 /* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . */
 
-int do_fpga (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fpga (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     ulong addr = 0;
     int i;
diff --git a/board/siemens/pcu_e/pcu_e.c b/board/siemens/pcu_e/pcu_e.c
index 827578c3a9..14d75ea429 100644
--- a/board/siemens/pcu_e/pcu_e.c
+++ b/board/siemens/pcu_e/pcu_e.c
@@ -373,7 +373,7 @@ void reset_phy (void)
 #define	PUMA_READ_MODE	0
 #define PUMA_LOAD_MODE	1
 
-int do_puma (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_puma (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr, len;
 
diff --git a/board/spear/common/spr_misc.c b/board/spear/common/spr_misc.c
index e35691200d..d99036bef3 100644
--- a/board/spear/common/spr_misc.c
+++ b/board/spear/common/spr_misc.c
@@ -206,7 +206,7 @@ static int write_mac(uchar *mac)
 	return -1;
 }
 
-int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	void (*sram_setfreq) (unsigned int, unsigned int);
 	struct chip_data *chip = &chip_data;
diff --git a/board/tcm-bf537/flash.c b/board/tcm-bf537/flash.c
index 52c5bd83c9..14055c6177 100644
--- a/board/tcm-bf537/flash.c
+++ b/board/tcm-bf537/flash.c
@@ -11,7 +11,7 @@
 #include <asm/blackfin.h>
 #include "gpio_cfi_flash.h"
 
-int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong faddr = CONFIG_SYS_FLASH_BASE;
 	ushort data;
diff --git a/board/tqc/tqm5200/cmd_stk52xx.c b/board/tqc/tqm5200/cmd_stk52xx.c
index e309beb1dc..0db705049f 100644
--- a/board/tqc/tqm5200/cmd_stk52xx.c
+++ b/board/tqc/tqm5200/cmd_stk52xx.c
@@ -301,7 +301,7 @@ static int i2s_squarewave(unsigned long duration, unsigned int freq,
 	return 0;
 }
 
-static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long reg, val, duration;
 	char *tmp;
@@ -419,7 +419,7 @@ static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 1;
 }
 
-static int cmd_wav(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int cmd_wav(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long length, addr;
 	unsigned char volume;
@@ -484,7 +484,7 @@ static int cmd_wav(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return rcode;
 }
 
-static int cmd_beep(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int cmd_beep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned char volume;
 	unsigned int channel;
@@ -581,7 +581,7 @@ void led_init(void)
  * return 1 if led number unknown
  * return 0 else
  */
-int do_led(char *argv[])
+int do_led(char * const argv[])
 {
 	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
 	struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
@@ -892,7 +892,7 @@ int can_init(void)
  * return 1 on CAN failure
  * return 0 if no failure
  */
-int do_can(char *argv[])
+int do_can(char * const argv[])
 {
 	int i;
 	struct mpc5xxx_mscan *can1 =
@@ -994,7 +994,7 @@ int do_can(char *argv[])
  * return 3 on rts/cts failure
  * return 0 if no failure
  */
-int do_rs232(char *argv[])
+int do_rs232(char * const argv[])
 {
 	int error_status = 0;
 	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
@@ -1123,7 +1123,7 @@ static void sm501_backlight (unsigned int state)
 }
 #endif /* !CONFIG_FO300 & !CONFIG_TQM5200S */
 
-int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode;
 
diff --git a/board/tqc/tqm5200/cmd_tb5200.c b/board/tqc/tqm5200/cmd_tb5200.c
index 578e716e7a..79c1b980a2 100644
--- a/board/tqc/tqm5200/cmd_tb5200.c
+++ b/board/tqc/tqm5200/cmd_tb5200.c
@@ -42,7 +42,7 @@ static void led_init(void)
 	gpt->gpt4.emsr |=  0x00000024;
 }
 
-int cmd_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int cmd_led(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
 
@@ -72,7 +72,7 @@ static void sm501_backlight (unsigned int state)
 			~((1 << 26) | (1 << 27));
 }
 
-int cmd_backlight(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int cmd_backlight(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (strcmp (argv[1], "on") == 0) {
 		debug ("switch backlight on\n");
diff --git a/board/tqc/tqm8272/tqm8272.c b/board/tqc/tqm8272/tqm8272.c
index 92f74a39cc..96ec078fd9 100644
--- a/board/tqc/tqm8272/tqm8272.c
+++ b/board/tqc/tqm8272/tqm8272.c
@@ -858,7 +858,7 @@ int board_early_init_r(void)
 }
 #endif
 
-int do_hwib_dump (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_hwib_dump (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	dump_hwib ();
 	return 0;
diff --git a/board/trab/cmd_trab.c b/board/trab/cmd_trab.c
index 472d7d81e9..6d23470f84 100644
--- a/board/trab/cmd_trab.c
+++ b/board/trab/cmd_trab.c
@@ -109,16 +109,16 @@ extern s32 tsc2000_contact_temp (void);
 extern void tsc2000_spi_init(void);
 
 /* function declarations */
-int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 int i2c_write_multiple (uchar chip, uint addr, int alen,
 			uchar *buffer, int len);
 int i2c_read_multiple (uchar chip, uint addr, int alen,
 			uchar *buffer, int len);
-int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* helper functions */
 static void adc_init (void);
@@ -162,7 +162,7 @@ typedef struct test_function_s {
 test_function_t test_function[BIF_MAX];
 
 
-int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int cycle_status;
@@ -266,7 +266,7 @@ U_BOOT_CMD(
 );
 
 
-int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i, dip;
 
@@ -299,7 +299,7 @@ U_BOOT_CMD(
 );
 
 
-int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int vcc5v;
 
@@ -327,7 +327,7 @@ U_BOOT_CMD(
 );
 
 
-int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int contact_temp;
 
@@ -352,7 +352,7 @@ U_BOOT_CMD(
 );
 
 
-int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc > 1) {
 		cmd_usage(cmdtp);
@@ -842,7 +842,7 @@ static int dummy(void)
 	return (0);
 }
 
-int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int contact_temp;
 	int delay = 0;
diff --git a/board/trab/trab.c b/board/trab/trab.c
index 71fd22c158..12fe120eac 100644
--- a/board/trab/trab.c
+++ b/board/trab/trab.c
@@ -305,7 +305,7 @@ static char *key_match (ulong kbd_data)
 #endif							/* CONFIG_PREBOOT */
 
 /* Read Keyboard status */
-int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong kbd_data = KBD_DATA;
 	char keybd_env[KEYBD_KEY_NUM + 1];
diff --git a/board/trab/trab_fkt.c b/board/trab/trab_fkt.c
index 2df9a04407..268162e53a 100644
--- a/board/trab/trab_fkt.c
+++ b/board/trab/trab_fkt.c
@@ -115,21 +115,21 @@ int do_rotary_switch (void);
 int do_pressure (void);
 int do_v_bat (void);
 int do_vfd_id (void);
-int do_buzzer (char **);
-int do_led (char **);
-int do_full_bridge (char **);
-int do_dac (char **);
+int do_buzzer (char * const *);
+int do_led (char * const *);
+int do_full_bridge (char * const *);
+int do_dac (char * const *);
 int do_motor_contact (void);
-int do_motor (char **);
-int do_pwm (char **);
-int do_thermo (char **);
-int do_touch (char **);
-int do_rs485 (char **);
-int do_serial_number (char **);
+int do_motor (char * const *);
+int do_pwm (char * const *);
+int do_thermo (char * const *);
+int do_touch (char * const *);
+int do_rs485 (char * const *);
+int do_serial_number (char * const *);
 int do_crc16 (void);
 int do_power_switch (void);
-int do_gain (char **);
-int do_eeprom (char **);
+int do_gain (char * const *);
+int do_eeprom (char * const *);
 
 /* helper functions */
 static void adc_init (void);
@@ -150,8 +150,8 @@ static unsigned short updcrc(unsigned short icrc, unsigned char *icp,
 			     unsigned int icnt);
 
 #if defined(CONFIG_CMD_I2C)
-static int trab_eeprom_read (char **argv);
-static int trab_eeprom_write (char **argv);
+static int trab_eeprom_read (char * const *argv);
+static int trab_eeprom_write (char * const *argv);
 int i2c_write_multiple (uchar chip, uint addr, int alen, uchar *buffer,
 			int len);
 int i2c_read_multiple ( uchar chip, uint addr, int alen, uchar *buffer,
@@ -163,7 +163,7 @@ int i2c_read_multiple ( uchar chip, uint addr, int alen, uchar *buffer,
  * test.
  */
 
-int trab_fkt (int argc, char *argv[])
+int trab_fkt (int argc, char * const argv[])
 {
 	int i;
 
@@ -585,7 +585,7 @@ int do_vfd_id (void)
 	return 0;
 }
 
-int do_buzzer (char **argv)
+int do_buzzer (char * const *argv)
 {
 	int counter;
 
@@ -635,7 +635,7 @@ int do_buzzer (char **argv)
 }
 
 
-int do_led (char **argv)
+int do_led (char * const *argv)
 {
 	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
 
@@ -690,7 +690,7 @@ int do_led (char **argv)
 }
 
 
-int do_full_bridge (char **argv)
+int do_full_bridge (char * const *argv)
 {
 	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
 
@@ -724,7 +724,7 @@ static inline unsigned long tsc2000_to_uv (u16 val)
 }
 
 
-int do_dac (char **argv)
+int do_dac (char * const *argv)
 {
 	int brightness;
 
@@ -799,7 +799,7 @@ int do_motor_contact (void)
 	return 0;
 }
 
-int do_motor (char **argv)
+int do_motor (char * const *argv)
 {
 	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
 
@@ -824,7 +824,7 @@ static void print_identifier (void)
 	printf ("## FKT: ");
 }
 
-int do_pwm (char **argv)
+int do_pwm (char * const *argv)
 {
 	int counter;
 	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
@@ -869,7 +869,7 @@ int do_pwm (char **argv)
 }
 
 
-int do_thermo (char **argv)
+int do_thermo (char * const *argv)
 {
 	int     channel, res;
 
@@ -892,7 +892,7 @@ int do_thermo (char **argv)
 }
 
 
-int do_touch (char **argv)
+int do_touch (char * const *argv)
 {
 	int     x, y;
 
@@ -1045,7 +1045,7 @@ static void touch_read_x_y (int *px, int *py)
 }
 
 
-int do_rs485 (char **argv)
+int do_rs485 (char * const *argv)
 {
 	int timeout;
 	char data[RS485_MAX_RECEIVE_BUF_LEN];
@@ -1110,7 +1110,7 @@ static int rs485_receive_chars (char *data, int timeout)
 }
 
 
-int do_serial_number (char **argv)
+int do_serial_number (char * const *argv)
 {
 #if defined(CONFIG_CMD_I2C)
 	unsigned int serial_number;
@@ -1249,7 +1249,7 @@ static unsigned short updcrc(unsigned short icrc, unsigned char *icp,
 }
 
 
-int do_gain (char **argv)
+int do_gain (char * const *argv)
 {
 	int range;
 
@@ -1265,7 +1265,7 @@ int do_gain (char **argv)
 }
 
 
-int do_eeprom (char **argv)
+int do_eeprom (char * const *argv)
 {
 #if defined(CONFIG_CMD_I2C)
 	if (strcmp (argv[2], "read") == 0) {
@@ -1286,7 +1286,7 @@ int do_eeprom (char **argv)
 }
 
 #if defined(CONFIG_CMD_I2C)
-static int trab_eeprom_read (char **argv)
+static int trab_eeprom_read (char * const *argv)
 {
 	int i;
 	int len;
@@ -1331,7 +1331,7 @@ static int trab_eeprom_read (char **argv)
 	return (0);
 }
 
-static int trab_eeprom_write (char **argv)
+static int trab_eeprom_write (char * const *argv)
 {
 	int i;
 	int len;
diff --git a/board/trizepsiv/eeprom.c b/board/trizepsiv/eeprom.c
index b6b16bf680..fede2e0774 100644
--- a/board/trizepsiv/eeprom.c
+++ b/board/trizepsiv/eeprom.c
@@ -25,7 +25,7 @@
 #include <command.h>
 #include <dm9000.h>
 
-static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
+static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
 	unsigned int i;
 	u8 data[2];
 
@@ -39,7 +39,7 @@ static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *a
 	return (0);
 }
 
-static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
+static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
 	int offset,value;
 
 	if (argc < 4) {
@@ -58,7 +58,7 @@ static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *
 	return (0);
 }
 
-int do_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
+int do_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
 		return 1;
diff --git a/board/voiceblue/eeprom.c b/board/voiceblue/eeprom.c
index f7e0ba56ab..aa6baca645 100644
--- a/board/voiceblue/eeprom.c
+++ b/board/voiceblue/eeprom.c
@@ -149,7 +149,7 @@ static int parse_element(char *s, unsigned char *buf, int len)
 	return cnt;
 }
 
-int eeprom(int argc, char *argv[])
+int eeprom(int argc, char * const argv[])
 {
 	int i, len, ret;
 	unsigned char buf[58], *p;
diff --git a/board/w7o/cmd_vpd.c b/board/w7o/cmd_vpd.c
index 013fc791f2..44d40eed28 100644
--- a/board/w7o/cmd_vpd.c
+++ b/board/w7o/cmd_vpd.c
@@ -32,7 +32,7 @@
  * Interpreter command to retrieve board specific Vital Product Data, "VPD"
  * ======================================================================
  */
-int do_vpd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_vpd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	VPD vpd;			/* Board specific data struct */
 	uchar dev_addr = CONFIG_SYS_DEF_EEPROM_ADDR;
diff --git a/board/zeus/update.c b/board/zeus/update.c
index c8487e58f8..61196276d5 100644
--- a/board/zeus/update.c
+++ b/board/zeus/update.c
@@ -91,7 +91,7 @@ static int update_boot_eeprom(void)
 	return 0;
 }
 
-int do_update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char* argv[])
+int do_update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
 {
 	return update_boot_eeprom();
 }
diff --git a/board/zeus/zeus.c b/board/zeus/zeus.c
index 01273a1f7d..e2951512f8 100644
--- a/board/zeus/zeus.c
+++ b/board/zeus/zeus.c
@@ -44,7 +44,7 @@ extern uchar default_environment[];
 
 ulong flash_get_size(ulong base, int banknum);
 void env_crc_update(void);
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 static u32 start_time;
 
@@ -278,7 +278,7 @@ static int restore_default(void)
 	return 0;
 }
 
-int do_set_default(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_set_default(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *buf;
 	char *buf_save;
@@ -336,7 +336,7 @@ static inline int sw_reset_pressed(void)
 	return !(in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_SW_RESET));
 }
 
-int do_chkreset(cmd_tbl_t* cmdtp, int flag, int argc, char* argv[])
+int do_chkreset(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
 {
 	int delta;
 	int count = 0;