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>

78 files changed, 97 insertions, 97 deletions

diff --git a/arch/arm/cpu/arm_cortexa8/mx51/clock.c b/arch/arm/cpu/arm_cortexa8/mx51/clock.c
index 38480ac..a27227d 100644
--- a/arch/arm/cpu/arm_cortexa8/mx51/clock.c
+++ b/arch/arm/cpu/arm_cortexa8/mx51/clock.c
@@ -269,7 +269,7 @@ u32 imx_get_fecclk(void)
 /*
  * Dump some core clockes.
  */
-int do_mx51_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mx51_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 freq;
 
diff --git a/arch/arm/cpu/arm_cortexa8/omap3/board.c b/arch/arm/cpu/arm_cortexa8/omap3/board.c
index d2500ca..69e56f5 100644
--- a/arch/arm/cpu/arm_cortexa8/omap3/board.c
+++ b/arch/arm/cpu/arm_cortexa8/omap3/board.c
@@ -282,7 +282,7 @@ void abort(void)
 /******************************************************************************
  * OMAP3 specific command to switch between NAND HW and SW ecc
  *****************************************************************************/
-static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc != 2)
 		goto usage;
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 5ac1302..3101321 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -50,7 +50,7 @@ static void setup_end_tag (bd_t *bd);
 static struct tag *params;
 #endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	bd_t	*bd = gd->bd;
 	char	*s;
diff --git a/arch/arm/lib/reset.c b/arch/arm/lib/reset.c
index 4fcedfa..08e6acb 100644
--- a/arch/arm/lib/reset.c
+++ b/arch/arm/lib/reset.c
@@ -39,7 +39,7 @@
 
 #include <common.h>
 
-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[])
 {
 	puts ("resetting ...\n");
 
diff --git a/arch/avr32/cpu/cpu.c b/arch/avr32/cpu/cpu.c
index 904bfb2..e4489bb 100644
--- a/arch/avr32/cpu/cpu.c
+++ b/arch/avr32/cpu/cpu.c
@@ -76,7 +76,7 @@ void prepare_to_boot(void)
 		     "sync   0" : : "r"(0) : "memory");
 }
 
-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[])
 {
 	/* This will reset the CPU core, caches, MMU and all internal busses */
 	__builtin_mtdr(8, 1 << 13);	/* set DC:DBE */
diff --git a/arch/avr32/lib/bootm.c b/arch/avr32/lib/bootm.c
index 6a3172a..8a47cfe 100644
--- a/arch/avr32/lib/bootm.c
+++ b/arch/avr32/lib/bootm.c
@@ -171,7 +171,7 @@ static void setup_end_tag(struct tag *params)
 	params->hdr.size = 0;
 }
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void	(*theKernel)(int magic, void *tagtable);
 	struct	tag *params, *params_start;
diff --git a/arch/blackfin/cpu/bootrom-asm-offsets.c.in b/arch/blackfin/cpu/bootrom-asm-offsets.c.in
index 3146e46..64c2f24 100644
--- a/arch/blackfin/cpu/bootrom-asm-offsets.c.in
+++ b/arch/blackfin/cpu/bootrom-asm-offsets.c.in
@@ -9,4 +9,4 @@
 #define _DEFINE(sym, val) asm volatile("\n->" #sym " %0 " #val : : "i" (val))
 #define DEFINE(s, m) _DEFINE(offset_##s##_##m, offsetof(s, m))
 
-int main(int argc, char *argv[])
+int main(int argc, char * const argv[])
diff --git a/arch/blackfin/cpu/reset.c b/arch/blackfin/cpu/reset.c
index e3be740..164afde 100644
--- a/arch/blackfin/cpu/reset.c
+++ b/arch/blackfin/cpu/reset.c
@@ -99,7 +99,7 @@ void bfin_reset_or_hang(void)
 #endif
 }
 
-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[])
 {
 	bfin_reset_trampoline();
 	return 0;
diff --git a/arch/blackfin/lib/boot.c b/arch/blackfin/lib/boot.c
index 951d5b0..37aa82a 100644
--- a/arch/blackfin/lib/boot.c
+++ b/arch/blackfin/lib/boot.c
@@ -33,7 +33,7 @@ static char *make_command_line(void)
 
 extern ulong bfin_poweron_retx;
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	int	(*appl) (char *cmdline);
 	char	*cmdline;
diff --git a/arch/blackfin/lib/cmd_cache_dump.c b/arch/blackfin/lib/cmd_cache_dump.c
index de5840e..412e019 100644
--- a/arch/blackfin/lib/cmd_cache_dump.c
+++ b/arch/blackfin/lib/cmd_cache_dump.c
@@ -25,7 +25,7 @@ static int check_limit(const char *type, size_t start_limit, size_t end_limit, s
 	return 1;
 }
 
-int do_icache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_icache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int cache_status = icache_status();
 
@@ -97,7 +97,7 @@ U_BOOT_CMD(icache_dump, 4, 0, do_icache_dump,
 	"icache_dump - dump current instruction cache\n",
 	"[way] [subbank] [set]");
 
-int do_dcache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dcache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 way, bank, subbank, set;
 	u32 status, addr;
diff --git a/arch/blackfin/lib/kgdb.c b/arch/blackfin/lib/kgdb.c
index bd62d71..4ca3fc7 100644
--- a/arch/blackfin/lib/kgdb.c
+++ b/arch/blackfin/lib/kgdb.c
@@ -417,7 +417,7 @@ void kgdb_putregs(struct pt_regs *regs, char *buf, int length)
 
 }
 
-void kgdb_breakpoint(int argc, char *argv[])
+void kgdb_breakpoint(int argc, char * const argv[])
 {
 	asm volatile ("excpt 0x1\n");
 }
diff --git a/arch/i386/cpu/cpu.c b/arch/i386/cpu/cpu.c
index 3010519..bd6aced 100644
--- a/arch/i386/cpu/cpu.c
+++ b/arch/i386/cpu/cpu.c
@@ -56,7 +56,7 @@ int cpu_init_r(void)
 	return 0;
 }
 
-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[])
 {
 	printf ("resetting ...\n");
 	udelay(50000);				/* wait 50 ms */
diff --git a/arch/i386/lib/board.c b/arch/i386/lib/board.c
index 3f849f6..0adc664 100644
--- a/arch/i386/lib/board.c
+++ b/arch/i386/lib/board.c
@@ -431,7 +431,7 @@ void hang (void)
 	for (;;);
 }
 
-unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char *argv[])
+unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char * const argv[])
 {
 	/*
 	 * x86 does not use a dedicated register to pass the pointer
diff --git a/arch/i386/lib/bootm.c b/arch/i386/lib/bootm.c
index f96d7bd..b36e58d 100644
--- a/arch/i386/lib/bootm.c
+++ b/arch/i386/lib/bootm.c
@@ -29,7 +29,7 @@
 #include <asm/zimage.h>
 
 /*cmd_boot.c*/
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void		*base_ptr;
 	ulong		os_data, os_len;
diff --git a/arch/i386/lib/interrupts.c b/arch/i386/lib/interrupts.c
index 51def59..5a28278 100644
--- a/arch/i386/lib/interrupts.c
+++ b/arch/i386/lib/interrupts.c
@@ -136,7 +136,7 @@ void do_irq(int hw_irq)
 }
 
 #if defined(CONFIG_CMD_IRQ)
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int irq;
 
diff --git a/arch/i386/lib/zimage.c b/arch/i386/lib/zimage.c
index b39615a..89fe015 100644
--- a/arch/i386/lib/zimage.c
+++ b/arch/i386/lib/zimage.c
@@ -245,7 +245,7 @@ void boot_zimage(void *setup_base)
 	enter_realmode(((u32)setup_base+SETUP_START_OFFSET)>>4, 0, &regs, &regs);
 }
 
-int do_zboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_zboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	void *base_ptr;
 	void *bzImage_addr;
diff --git a/arch/m68k/cpu/mcf5227x/cpu.c b/arch/m68k/cpu/mcf5227x/cpu.c
index d9f5f43..5129a03 100644
--- a/arch/m68k/cpu/mcf5227x/cpu.c
+++ b/arch/m68k/cpu/mcf5227x/cpu.c
@@ -33,7 +33,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
 	udelay(1000);
diff --git a/arch/m68k/cpu/mcf523x/cpu.c b/arch/m68k/cpu/mcf523x/cpu.c
index a1a5133..582aec9 100644
--- a/arch/m68k/cpu/mcf523x/cpu.c
+++ b/arch/m68k/cpu/mcf523x/cpu.c
@@ -34,7 +34,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile ccm_t *ccm = (ccm_t *) MMAP_CCM;
 
diff --git a/arch/m68k/cpu/mcf52x2/cpu.c b/arch/m68k/cpu/mcf52x2/cpu.c
index c4c5d50..9fb717c 100644
--- a/arch/m68k/cpu/mcf52x2/cpu.c
+++ b/arch/m68k/cpu/mcf52x2/cpu.c
@@ -38,7 +38,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef	CONFIG_M5208
-int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *)(MMAP_RCM);
 
@@ -142,7 +142,7 @@ int checkcpu(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	/* Call the board specific reset actions first. */
 	if(board_reset) {
@@ -177,7 +177,7 @@ int watchdog_init(void)
 #endif
 
 #ifdef	CONFIG_M5272
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
 
@@ -257,7 +257,7 @@ int watchdog_init(void)
 #endif				/* #ifdef CONFIG_M5272 */
 
 #ifdef	CONFIG_M5275
-int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *)(MMAP_RCM);
 
@@ -337,7 +337,7 @@ int checkcpu(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	MCFRESET_RCR = MCFRESET_RCR_SOFTRST;
 	return 0;
@@ -354,7 +354,7 @@ int checkcpu(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	/* enable watchdog, set timeout to 0 and wait */
 	mbar_writeByte(MCFSIM_SYPCR, 0xc0);
@@ -384,7 +384,7 @@ int checkcpu(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	/* enable watchdog, set timeout to 0 and wait */
 	mbar_writeByte(SIM_SYPCR, 0xc0);
diff --git a/arch/m68k/cpu/mcf532x/cpu.c b/arch/m68k/cpu/mcf532x/cpu.c
index 331cc15..0af4969 100644
--- a/arch/m68k/cpu/mcf532x/cpu.c
+++ b/arch/m68k/cpu/mcf532x/cpu.c
@@ -34,7 +34,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
 
diff --git a/arch/m68k/cpu/mcf5445x/cpu.c b/arch/m68k/cpu/mcf5445x/cpu.c
index 6238bc0..182521c 100644
--- a/arch/m68k/cpu/mcf5445x/cpu.c
+++ b/arch/m68k/cpu/mcf5445x/cpu.c
@@ -34,7 +34,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
 	udelay(1000);
diff --git a/arch/m68k/cpu/mcf547x_8x/cpu.c b/arch/m68k/cpu/mcf547x_8x/cpu.c
index 3912a74..f9a4b64 100644
--- a/arch/m68k/cpu/mcf547x_8x/cpu.c
+++ b/arch/m68k/cpu/mcf547x_8x/cpu.c
@@ -34,7 +34,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
 
diff --git a/arch/m68k/lib/bootm.c b/arch/m68k/lib/bootm.c
index e5ed6eb..76a2fb2 100644
--- a/arch/m68k/lib/bootm.c
+++ b/arch/m68k/lib/bootm.c
@@ -64,7 +64,7 @@ void arch_lmb_reserve(struct lmb *lmb)
 	lmb_reserve(lmb, sp, (CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp));
 }
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	ulong rd_len;
 	ulong initrd_start, initrd_end;
diff --git a/arch/microblaze/cpu/interrupts.c b/arch/microblaze/cpu/interrupts.c
index 7a9d022..e9d53c1 100644
--- a/arch/microblaze/cpu/interrupts.c
+++ b/arch/microblaze/cpu/interrupts.c
@@ -173,7 +173,7 @@ void interrupt_handler (void)
 
 #if defined(CONFIG_CMD_IRQ)
 #ifdef CONFIG_SYS_INTC_0
-int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	struct irq_action *act = vecs;
@@ -193,7 +193,7 @@ int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return (0);
 }
 #else
-int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	puts ("Undefined interrupt controller\n");
 }
diff --git a/arch/microblaze/lib/bootm.c b/arch/microblaze/lib/bootm.c
index 2227a81..8e2c6d8 100644
--- a/arch/microblaze/lib/bootm.c
+++ b/arch/microblaze/lib/bootm.c
@@ -32,7 +32,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	/* First parameter is mapped to $r5 for kernel boot args */
 	void	(*theKernel) (char *, ulong, ulong);
diff --git a/arch/mips/cpu/cpu.c b/arch/mips/cpu/cpu.c
index d5a1604..3ae397c 100644
--- a/arch/mips/cpu/cpu.c
+++ b/arch/mips/cpu/cpu.c
@@ -42,7 +42,7 @@ void __attribute__((weak)) _machine_restart(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[])
 {
 	_machine_restart();
 
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c
index 54af24c..40a5647 100644
--- a/arch/mips/lib/bootm.c
+++ b/arch/mips/lib/bootm.c
@@ -43,7 +43,7 @@ static int	linux_env_idx;
 static void linux_params_init (ulong start, char * commandline);
 static void linux_env_set (char * env_name, char * env_val);
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void	(*theKernel) (int, char **, char **, int *);
 	char	*commandline = getenv ("bootargs");
diff --git a/arch/mips/lib/bootm_qemu_mips.c b/arch/mips/lib/bootm_qemu_mips.c
index cc70fa9..f1906c6 100644
--- a/arch/mips/lib/bootm_qemu_mips.c
+++ b/arch/mips/lib/bootm_qemu_mips.c
@@ -29,7 +29,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void	(*theKernel) (int, char **, char **, int *);
 	char	*bootargs = getenv ("bootargs");
diff --git a/arch/nios2/cpu/epcs.c b/arch/nios2/cpu/epcs.c
index ab7d746..2369431 100644
--- a/arch/nios2/cpu/epcs.c
+++ b/arch/nios2/cpu/epcs.c
@@ -472,7 +472,7 @@ static int epcs_sect_erased (int sect, unsigned *offset,
  * Commands
  ***********************************************************************/
 static
-void do_epcs_info (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_info (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	int i;
 	unsigned char stat;
@@ -519,7 +519,7 @@ void do_epcs_info (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_erase (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_erase (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	unsigned start,end;
 
@@ -549,7 +549,7 @@ void do_epcs_erase (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_protect (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_protect (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	unsigned char stat;
 
@@ -585,7 +585,7 @@ void do_epcs_protect (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_read (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_read (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	ulong addr,off,cnt;
 	ulong sz;
@@ -617,7 +617,7 @@ void do_epcs_read (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_write (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_write (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	ulong addr,off,cnt;
 	ulong sz;
@@ -656,7 +656,7 @@ void do_epcs_write (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_verify (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_verify (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	ulong addr,off,cnt;
 	ulong sz;
@@ -690,7 +690,7 @@ void do_epcs_verify (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 /*-----------------------------------------------------------------------*/
-int do_epcs (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_epcs (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int len;
 	struct epcs_devinfo_t *dev = epcs_dev_find ();
diff --git a/arch/nios2/cpu/interrupts.c b/arch/nios2/cpu/interrupts.c
index b552db4..63acfa9 100644
--- a/arch/nios2/cpu/interrupts.c
+++ b/arch/nios2/cpu/interrupts.c
@@ -239,7 +239,7 @@ int interrupt_init (void)
 
 /*************************************************************************/
 #if defined(CONFIG_CMD_IRQ)
-int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	struct irq_action *act = vecs;
diff --git a/arch/nios2/cpu/sysid.c b/arch/nios2/cpu/sysid.c
index 77bc8b5..5fbc28b 100644
--- a/arch/nios2/cpu/sysid.c
+++ b/arch/nios2/cpu/sysid.c
@@ -44,7 +44,7 @@ void display_sysid (void)
 
 }
 
-int do_sysid (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sysid (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	display_sysid ();
 	return (0);
diff --git a/arch/nios2/lib/bootm.c b/arch/nios2/lib/bootm.c
index 5d25edf..e4093a8 100644
--- a/arch/nios2/lib/bootm.c
+++ b/arch/nios2/lib/bootm.c
@@ -28,7 +28,7 @@
 
 #define NIOS_MAGIC 0x534f494e /* enable command line and initrd passing */
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void (*kernel)(int, int, int, char *) = (void *)images->ep;
 	char *commandline = getenv("bootargs");
diff --git a/arch/powerpc/cpu/74xx_7xx/cpu.c b/arch/powerpc/cpu/74xx_7xx/cpu.c
index 14d3ce4..ab6f11d 100644
--- a/arch/powerpc/cpu/74xx_7xx/cpu.c
+++ b/arch/powerpc/cpu/74xx_7xx/cpu.c
@@ -235,7 +235,7 @@ soft_restart(unsigned long addr)
     !defined(CONFIG_PPMC7XX)
 /* no generic way to do board reset. simply call soft_reset. */
 void
-do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	/* flush and disable I/D cache */
diff --git a/arch/powerpc/cpu/74xx_7xx/interrupts.c b/arch/powerpc/cpu/74xx_7xx/interrupts.c
index c2856c9..7fc8a34 100644
--- a/arch/powerpc/cpu/74xx_7xx/interrupts.c
+++ b/arch/powerpc/cpu/74xx_7xx/interrupts.c
@@ -98,7 +98,7 @@ irq_free_handler(int vec)
 /****************************************************************************/
 
 void
-do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 	puts("IRQ related functions are unimplemented currently.\n");
 }
diff --git a/arch/powerpc/cpu/mpc512x/cpu.c b/arch/powerpc/cpu/mpc512x/cpu.c
index 09cbd20..a1a3bd4 100644
--- a/arch/powerpc/cpu/mpc512x/cpu.c
+++ b/arch/powerpc/cpu/mpc512x/cpu.c
@@ -75,7 +75,7 @@ int checkcpu (void)
 
 
 int
-do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr;
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
diff --git a/arch/powerpc/cpu/mpc512x/diu.c b/arch/powerpc/cpu/mpc512x/diu.c
index 1cce6a2..f638c00 100644
--- a/arch/powerpc/cpu/mpc512x/diu.c
+++ b/arch/powerpc/cpu/mpc512x/diu.c
@@ -107,7 +107,7 @@ int mpc5121_diu_init(void)
 }
 
 int mpc5121diu_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/arch/powerpc/cpu/mpc512x/iim.c b/arch/powerpc/cpu/mpc512x/iim.c
index 8f2eb37..abec8f6 100644
--- a/arch/powerpc/cpu/mpc512x/iim.c
+++ b/arch/powerpc/cpu/mpc512x/iim.c
@@ -278,7 +278,7 @@ int ads5121_fuse_stat(int bank)
 	return 0;
 }
 
-int do_ads5121_fuse(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ads5121_fuse(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int frow, n, v, bank;
 
diff --git a/arch/powerpc/cpu/mpc512x/speed.c b/arch/powerpc/cpu/mpc512x/speed.c
index ce8d094..9d749f2 100644
--- a/arch/powerpc/cpu/mpc512x/speed.c
+++ b/arch/powerpc/cpu/mpc512x/speed.c
@@ -131,7 +131,7 @@ ulong get_bus_freq (ulong dummy)
 	return gd->csb_clk;
 }
 
-int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char buf[32];
 
diff --git a/arch/powerpc/cpu/mpc5xx/cpu.c b/arch/powerpc/cpu/mpc5xx/cpu.c
index 7fffebc..5aa7f84 100644
--- a/arch/powerpc/cpu/mpc5xx/cpu.c
+++ b/arch/powerpc/cpu/mpc5xx/cpu.c
@@ -138,7 +138,7 @@ int dcache_status (void)
 /*
  * Reset board
  */
-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[])
 {
 #if defined(CONFIG_PATI)
 	volatile ulong *addr = (ulong *) CONFIG_SYS_RESET_ADDRESS;
diff --git a/arch/powerpc/cpu/mpc5xx/interrupts.c b/arch/powerpc/cpu/mpc5xx/interrupts.c
index 167543f..66bce30 100644
--- a/arch/powerpc/cpu/mpc5xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc5xx/interrupts.c
@@ -184,7 +184,7 @@ void timer_interrupt_cpu (struct pt_regs *regs)
  * irqinfo - print information about IRQs
  *
  */
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int vec;
 
diff --git a/arch/powerpc/cpu/mpc5xxx/cpu.c b/arch/powerpc/cpu/mpc5xxx/cpu.c
index 44b8a7a..0c1eebd 100644
--- a/arch/powerpc/cpu/mpc5xxx/cpu.c
+++ b/arch/powerpc/cpu/mpc5xxx/cpu.c
@@ -78,7 +78,7 @@ int checkcpu (void)
 /* ------------------------------------------------------------------------- */
 
 int
-do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr;
 	/* Interrupts and MMU off */
diff --git a/arch/powerpc/cpu/mpc5xxx/interrupts.c b/arch/powerpc/cpu/mpc5xxx/interrupts.c
index 16eee3a..50455d0 100644
--- a/arch/powerpc/cpu/mpc5xxx/interrupts.c
+++ b/arch/powerpc/cpu/mpc5xxx/interrupts.c
@@ -311,7 +311,7 @@ void irq_free_handler(int irq)
 /****************************************************************************/
 
 #if defined(CONFIG_CMD_IRQ)
-void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	int irq, re_enable;
 	u32 intr_ctrl;
diff --git a/arch/powerpc/cpu/mpc8220/cpu.c b/arch/powerpc/cpu/mpc8220/cpu.c
index 563cfe0..64e0526 100644
--- a/arch/powerpc/cpu/mpc8220/cpu.c
+++ b/arch/powerpc/cpu/mpc8220/cpu.c
@@ -52,7 +52,7 @@ int checkcpu (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[])
 {
 	volatile gptmr8220_t *gptmr = (volatile gptmr8220_t *) MMAP_GPTMR;
 	ulong msr;
diff --git a/arch/powerpc/cpu/mpc8220/interrupts.c b/arch/powerpc/cpu/mpc8220/interrupts.c
index 78e9917..9544d85 100644
--- a/arch/powerpc/cpu/mpc8220/interrupts.c
+++ b/arch/powerpc/cpu/mpc8220/interrupts.c
@@ -74,7 +74,7 @@ void irq_free_handler (int vec)
 /****************************************************************************/
 
 void
-do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	puts ("IRQ related functions are unimplemented currently.\n");
 }
diff --git a/arch/powerpc/cpu/mpc824x/cpu.c b/arch/powerpc/cpu/mpc824x/cpu.c
index 08f6a94..44f91b2 100644
--- a/arch/powerpc/cpu/mpc824x/cpu.c
+++ b/arch/powerpc/cpu/mpc824x/cpu.c
@@ -92,7 +92,7 @@ int checkdcache (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[])
 {
 	ulong msr, addr;
 
diff --git a/arch/powerpc/cpu/mpc8260/bedbug_603e.c b/arch/powerpc/cpu/mpc8260/bedbug_603e.c
index c969ff6..2488612 100644
--- a/arch/powerpc/cpu/mpc8260/bedbug_603e.c
+++ b/arch/powerpc/cpu/mpc8260/bedbug_603e.c
@@ -18,7 +18,7 @@
 extern CPU_DEBUG_CTX bug_ctx;
 
 void bedbug603e_init __P((void));
-void bedbug603e_do_break __P((cmd_tbl_t*,int,int,char*[]));
+void bedbug603e_do_break __P((cmd_tbl_t*,int,int,char*const[]));
 void bedbug603e_break_isr __P((struct pt_regs*));
 int  bedbug603e_find_empty __P((void));
 int  bedbug603e_set __P((int,unsigned long));
@@ -64,7 +64,7 @@ void bedbug603e_init( void )
  * ====================================================================== */
 
 void bedbug603e_do_break (cmd_tbl_t *cmdtp, int flag, int argc,
-			 char *argv[])
+			 char * const argv[])
 {
   long		addr;           /* Address to break at  */
   int		which_bp;       /* Breakpoint number    */
diff --git a/arch/powerpc/cpu/mpc8260/cpu.c b/arch/powerpc/cpu/mpc8260/cpu.c
index aedbf29..220c1e2 100644
--- a/arch/powerpc/cpu/mpc8260/cpu.c
+++ b/arch/powerpc/cpu/mpc8260/cpu.c
@@ -238,7 +238,7 @@ void upmconfig (uint upm, uint * table, uint size)
 
 #if !defined(CONFIG_HAVE_OWN_RESET)
 int
-do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr, addr;
 
diff --git a/arch/powerpc/cpu/mpc8260/interrupts.c b/arch/powerpc/cpu/mpc8260/interrupts.c
index 2606c60..79178cc 100644
--- a/arch/powerpc/cpu/mpc8260/interrupts.c
+++ b/arch/powerpc/cpu/mpc8260/interrupts.c
@@ -256,7 +256,7 @@ void timer_interrupt_cpu (struct pt_regs *regs)
 *
 */
 void
-do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	int irq, re_enable;
 
diff --git a/arch/powerpc/cpu/mpc83xx/cpu.c b/arch/powerpc/cpu/mpc83xx/cpu.c
index d3be909..b664c64 100644
--- a/arch/powerpc/cpu/mpc83xx/cpu.c
+++ b/arch/powerpc/cpu/mpc83xx/cpu.c
@@ -192,7 +192,7 @@ void upmconfig (uint upm, uint *table, uint size)
 
 
 int
-do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr;
 #ifndef MPC83xx_RESET
diff --git a/arch/powerpc/cpu/mpc83xx/ecc.c b/arch/powerpc/cpu/mpc83xx/ecc.c
index f3942b4..8dadd64 100644
--- a/arch/powerpc/cpu/mpc83xx/ecc.c
+++ b/arch/powerpc/cpu/mpc83xx/ecc.c
@@ -98,7 +98,7 @@ void ecc_print_status(void)
 	       ddr->capture_attributes & ECC_CAPT_ATTR_VLD);
 }
 
-int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 	volatile ddr83xx_t *ddr = &immap->ddr;
diff --git a/arch/powerpc/cpu/mpc83xx/interrupts.c b/arch/powerpc/cpu/mpc83xx/interrupts.c
index faffbaf..446af27 100644
--- a/arch/powerpc/cpu/mpc83xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc83xx/interrupts.c
@@ -90,7 +90,7 @@ void timer_interrupt_cpu (struct pt_regs *regs)
  */
 
 void
-do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 }
 
diff --git a/arch/powerpc/cpu/mpc83xx/speed.c b/arch/powerpc/cpu/mpc83xx/speed.c
index 500eef1..b5076a9 100644
--- a/arch/powerpc/cpu/mpc83xx/speed.c
+++ b/arch/powerpc/cpu/mpc83xx/speed.c
@@ -497,7 +497,7 @@ ulong get_bus_freq(ulong dummy)
 	return gd->csb_clk;
 }
 
-int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char buf[32];
 
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index fddeb2f..6f81fdf 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -186,7 +186,7 @@ int checkcpu (void)
 
 /* ------------------------------------------------------------------------- */
 
-int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 /* Everything after the first generation of PQ3 parts has RSTCR */
 #if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
diff --git a/arch/powerpc/cpu/mpc85xx/interrupts.c b/arch/powerpc/cpu/mpc85xx/interrupts.c
index 409367d..ac8c01a 100644
--- a/arch/powerpc/cpu/mpc85xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc85xx/interrupts.c
@@ -103,7 +103,7 @@ void timer_interrupt_cpu(struct pt_regs *regs)
 
 #if defined(CONFIG_CMD_IRQ)
 /* irqinfo - print information about PCI devices,not implemented. */
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return 0;
 }
diff --git a/arch/powerpc/cpu/mpc85xx/mp.c b/arch/powerpc/cpu/mpc85xx/mp.c
index 826bf32..ddbc221 100644
--- a/arch/powerpc/cpu/mpc85xx/mp.c
+++ b/arch/powerpc/cpu/mpc85xx/mp.c
@@ -105,7 +105,7 @@ static u8 boot_entry_map[4] = {
 	BOOT_ENTRY_R6_LOWER,
 };
 
-int cpu_release(int nr, int argc, char *argv[])
+int cpu_release(int nr, int argc, char * const argv[])
 {
 	u32 i, val, *table = (u32 *)get_spin_virt_addr() + nr * NUM_BOOT_ENTRY;
 	u64 boot_addr;
diff --git a/arch/powerpc/cpu/mpc86xx/cpu.c b/arch/powerpc/cpu/mpc86xx/cpu.c
index 1887575..9064e78 100644
--- a/arch/powerpc/cpu/mpc86xx/cpu.c
+++ b/arch/powerpc/cpu/mpc86xx/cpu.c
@@ -124,7 +124,7 @@ checkcpu(void)
 
 
 void
-do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
diff --git a/arch/powerpc/cpu/mpc86xx/interrupts.c b/arch/powerpc/cpu/mpc86xx/interrupts.c
index c78fc72..d8ad6d3 100644
--- a/arch/powerpc/cpu/mpc86xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc86xx/interrupts.c
@@ -101,7 +101,7 @@ void irq_free_handler(int vec)
 /*
  * irqinfo - print information about PCI devices,not implemented.
  */
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return 0;
 }
diff --git a/arch/powerpc/cpu/mpc86xx/mp.c b/arch/powerpc/cpu/mpc86xx/mp.c
index b4a0faa..24eb30a 100644
--- a/arch/powerpc/cpu/mpc86xx/mp.c
+++ b/arch/powerpc/cpu/mpc86xx/mp.c
@@ -66,7 +66,7 @@ int cpu_disable(int nr)
 	return 0;
 }
 
-int cpu_release(int nr, int argc, char *argv[])
+int cpu_release(int nr, int argc, char * const argv[])
 {
 	/* dummy function so common/cmd_mp.c will build
 	 * should be implemented in the future */
diff --git a/arch/powerpc/cpu/mpc8xx/bedbug_860.c b/arch/powerpc/cpu/mpc8xx/bedbug_860.c
index 0308bbb..9deda6c 100644
--- a/arch/powerpc/cpu/mpc8xx/bedbug_860.c
+++ b/arch/powerpc/cpu/mpc8xx/bedbug_860.c
@@ -17,7 +17,7 @@
 extern CPU_DEBUG_CTX bug_ctx;
 
 void bedbug860_init __P((void));
-void bedbug860_do_break __P((cmd_tbl_t*,int,int,char*[]));
+void bedbug860_do_break __P((cmd_tbl_t*,int,int,char*const[]));
 void bedbug860_break_isr __P((struct pt_regs*));
 int  bedbug860_find_empty __P((void));
 int  bedbug860_set __P((int,unsigned long));
@@ -63,7 +63,7 @@ void bedbug860_init( void )
  * ====================================================================== */
 
 void bedbug860_do_break (cmd_tbl_t *cmdtp, int flag, int argc,
-			 char *argv[])
+			 char * const argv[])
 {
   long		addr = 0;       /* Address to break at  */
   int		which_bp;       /* Breakpoint number    */
diff --git a/arch/powerpc/cpu/mpc8xx/cpu.c b/arch/powerpc/cpu/mpc8xx/cpu.c
index 2eb848b..142cfa5 100644
--- a/arch/powerpc/cpu/mpc8xx/cpu.c
+++ b/arch/powerpc/cpu/mpc8xx/cpu.c
@@ -478,7 +478,7 @@ void upmconfig (uint upm, uint * table, uint size)
 
 #ifndef CONFIG_LWMON
 
-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[])
 {
 	ulong msr, addr;
 
@@ -521,7 +521,7 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * and thus too short to reset the external hardware. So we  use  the
  * watchdog to reset the board.
  */
-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[])
 {
 	/* prevent triggering the watchdog */
 	disable_interrupts ();
diff --git a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
index b2cc2fe..ff5ef5f 100644
--- a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
+++ b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
@@ -418,7 +418,7 @@ static void	test(void);
 static void	DQS_calibration_process(void);
 #endif
 #endif
-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 unsigned char spd_read(uchar chip, uint addr)
 {
diff --git a/arch/powerpc/cpu/ppc4xx/bedbug_405.c b/arch/powerpc/cpu/ppc4xx/bedbug_405.c
index ef11cb6..e1500cc 100644
--- a/arch/powerpc/cpu/ppc4xx/bedbug_405.c
+++ b/arch/powerpc/cpu/ppc4xx/bedbug_405.c
@@ -17,7 +17,7 @@
 extern CPU_DEBUG_CTX bug_ctx;
 
 void bedbug405_init __P ((void));
-void bedbug405_do_break __P ((cmd_tbl_t *, int, int, char *[]));
+void bedbug405_do_break __P ((cmd_tbl_t *, int, int, char * const []));
 void bedbug405_break_isr __P ((struct pt_regs *));
 int bedbug405_find_empty __P ((void));
 int bedbug405_set __P ((int, unsigned long));
@@ -63,7 +63,7 @@ void bedbug405_init (void)
  * set routine which will assign a breakpoint number.
  * ====================================================================== */
 
-void bedbug405_do_break (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+void bedbug405_do_break (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	long addr = 0;		/* Address to break at  */
 	int which_bp;		/* Breakpoint number    */
diff --git a/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c b/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c
index ba57211..72c5aec 100644
--- a/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c
+++ b/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c
@@ -45,7 +45,7 @@ static void print_configs(int cur_config_nr)
 
 }
 
-static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int ret;
diff --git a/arch/powerpc/cpu/ppc4xx/cpu.c b/arch/powerpc/cpu/ppc4xx/cpu.c
index e1a023b..851065c 100644
--- a/arch/powerpc/cpu/ppc4xx/cpu.c
+++ b/arch/powerpc/cpu/ppc4xx/cpu.c
@@ -688,7 +688,7 @@ int ppc440spe_revB() {
 
 /* ------------------------------------------------------------------------- */
 
-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[])
 {
 #if defined(CONFIG_BOARD_RESET)
 	board_reset();
diff --git a/arch/powerpc/cpu/ppc4xx/interrupts.c b/arch/powerpc/cpu/ppc4xx/interrupts.c
index 6db8421..c89bf37 100644
--- a/arch/powerpc/cpu/ppc4xx/interrupts.c
+++ b/arch/powerpc/cpu/ppc4xx/interrupts.c
@@ -194,7 +194,7 @@ void irq_free_handler(int vec)
 }
 
 #if defined(CONFIG_CMD_IRQ)
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int vec;
 
diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c
index 6702df5..3064121 100644
--- a/arch/powerpc/lib/bootm.c
+++ b/arch/powerpc/lib/bootm.c
@@ -47,7 +47,7 @@
 
 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 ulong get_effective_memsize(void);
 static ulong get_sp (void);
 static void set_clocks_in_mhz (bd_t *kbd);
@@ -297,7 +297,7 @@ static int boot_body_linux(bootm_headers_t *images)
 }
 
 __attribute__((noinline))
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	int	ret;
 
diff --git a/arch/powerpc/lib/kgdb.c b/arch/powerpc/lib/kgdb.c
index d3eb1f3..1ec6818 100644
--- a/arch/powerpc/lib/kgdb.c
+++ b/arch/powerpc/lib/kgdb.c
@@ -313,7 +313,7 @@ kgdb_putregs(struct pt_regs *regs, char *buf, int length)
    the debugger. */
 
 void
-kgdb_breakpoint(int argc, char *argv[])
+kgdb_breakpoint(int argc, char * const argv[])
 {
 	asm("	.globl breakinst\n\
 	     breakinst: .long 0x7d821008\n\
diff --git a/arch/sh/cpu/sh2/cpu.c b/arch/sh/cpu/sh2/cpu.c
index e0cb047..6bbedd9 100644
--- a/arch/sh/cpu/sh2/cpu.c
+++ b/arch/sh/cpu/sh2/cpu.c
@@ -59,7 +59,7 @@ int cleanup_before_linux(void)
 	return 0;
 }
 
-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[])
 {
 	disable_interrupts();
 	reset_cpu(0);
diff --git a/arch/sh/cpu/sh3/cpu.c b/arch/sh/cpu/sh3/cpu.c
index 8261d29..3e9caad 100644
--- a/arch/sh/cpu/sh3/cpu.c
+++ b/arch/sh/cpu/sh3/cpu.c
@@ -45,7 +45,7 @@ int cleanup_before_linux(void)
 	return 0;
 }
 
-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[])
 {
 	disable_interrupts();
 	reset_cpu(0);
diff --git a/arch/sh/cpu/sh4/cpu.c b/arch/sh/cpu/sh4/cpu.c
index be410ab..f136758 100644
--- a/arch/sh/cpu/sh4/cpu.c
+++ b/arch/sh/cpu/sh4/cpu.c
@@ -44,7 +44,7 @@ int cleanup_before_linux (void)
 	return 0;
 }
 
-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[])
 {
 	disable_interrupts();
 	reset_cpu (0);
diff --git a/arch/sh/lib/bootm.c b/arch/sh/lib/bootm.c
index ae1f869..9c58ed7 100644
--- a/arch/sh/lib/bootm.c
+++ b/arch/sh/lib/bootm.c
@@ -43,7 +43,7 @@ static void hexdump(unsigned char *buf, int len)
 }
 #endif
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	/* Linux kernel load address */
 	void (*kernel) (void) = (void (*)(void))images->ep;
diff --git a/arch/sparc/cpu/leon2/cpu.c b/arch/sparc/cpu/leon2/cpu.c
index d6e23b1..46512c7 100644
--- a/arch/sparc/cpu/leon2/cpu.c
+++ b/arch/sparc/cpu/leon2/cpu.c
@@ -49,7 +49,7 @@ void cpu_reset(void)
 	_reset_reloc();
 }
 
-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[])
 {
 	cpu_reset();
 
diff --git a/arch/sparc/cpu/leon2/interrupts.c b/arch/sparc/cpu/leon2/interrupts.c
index 9b0da96..5149550 100644
--- a/arch/sparc/cpu/leon2/interrupts.c
+++ b/arch/sparc/cpu/leon2/interrupts.c
@@ -195,7 +195,7 @@ void irq_free_handler(int irq)
 /****************************************************************************/
 
 #if defined(CONFIG_CMD_IRQ)
-void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	int irq;
 	unsigned int pil = get_pil();
diff --git a/arch/sparc/cpu/leon3/cpu.c b/arch/sparc/cpu/leon3/cpu.c
index 976f311..a1646e2 100644
--- a/arch/sparc/cpu/leon3/cpu.c
+++ b/arch/sparc/cpu/leon3/cpu.c
@@ -52,7 +52,7 @@ void cpu_reset(void)
 	_reset_reloc();
 }
 
-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[])
 {
 	cpu_reset();
 
diff --git a/arch/sparc/cpu/leon3/interrupts.c b/arch/sparc/cpu/leon3/interrupts.c
index ac6aca5..4138f9b 100644
--- a/arch/sparc/cpu/leon3/interrupts.c
+++ b/arch/sparc/cpu/leon3/interrupts.c
@@ -197,7 +197,7 @@ void irq_free_handler(int irq)
 /****************************************************************************/
 
 #if defined(CONFIG_CMD_IRQ)
-void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	int irq;
 	unsigned int pil = get_pil();
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index d55cc86..12901bc 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -79,7 +79,7 @@ struct linux_mem_v0 {
 
 /* Arguments sent to the kernel from the boot prompt. */
 struct linux_arguments_v0 {
-	char *argv[8];
+	char * const argv[8];
 	char args[100];
 	char boot_dev[2];
 	int boot_dev_ctrl;
diff --git a/arch/sparc/lib/board.c b/arch/sparc/lib/board.c
index 11eea60..b776c21 100644
--- a/arch/sparc/lib/board.c
+++ b/arch/sparc/lib/board.c
@@ -63,7 +63,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 extern void timer_interrupt_init(void);
 extern void malloc_bin_reloc(void);
-extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
+extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]);
 extern int prom_init(void);
 
 #if defined(CONFIG__CMD_DOC)
diff --git a/arch/sparc/lib/bootm.c b/arch/sparc/lib/bootm.c
index c62cf57..4c226a3 100644
--- a/arch/sparc/lib/bootm.c
+++ b/arch/sparc/lib/bootm.c
@@ -92,7 +92,7 @@ void arch_lmb_reserve(struct lmb *lmb)
 }
 
 /* boot the linux kernel */
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t * images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t * images)
 {
 	char *bootargs;
 	ulong initrd_start, initrd_end;