MIPS: Alchemy: Fix warnings in DB1x00 / PB1000 / PB1550 board setup code

This patch fixes warnings due to potentially unused
variables in board setup code or mixed variables
declaration and code (forbidden by ISO C90).
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/alchemy/devboards/db1x00/board_setup.c

@@ -85,12 +85,14 @@ void board_reset(void)
 void __init board_setup(void)
 {
 	unsigned long bcsr1, bcsr2;
-	u32 pin_func = 0;
+	u32 pin_func;
 	char *argptr;
 
 	bcsr1 = DB1000_BCSR_PHYS_ADDR;
 	bcsr2 = DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS;
 
+	pin_func = 0;
+
 #ifdef CONFIG_MIPS_DB1000
 	printk(KERN_INFO "AMD Alchemy Au1000/Db1000 Board\n");
 #endif

arch/mips/alchemy/devboards/pb1000/board_setup.c

@@ -46,9 +46,13 @@ void __init board_setup(void)
 	u32 pin_func, static_cfg0;
 	u32 sys_freqctrl, sys_clksrc;
 	u32 prid = read_c0_prid();
+	char *argptr;
+
+	sys_freqctrl = 0;
+	sys_clksrc = 0;
+	argptr = prom_getcmdline();
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE
-	char *argptr = prom_getcmdline();
 	argptr = strstr(argptr, "console=");
 	if (argptr == NULL) {
 		argptr = prom_getcmdline();

arch/mips/alchemy/devboards/pb1550/board_setup.c

@@ -56,14 +56,13 @@ void board_reset(void)
 void __init board_setup(void)
 {
 	u32 pin_func;
+	char *argptr;
 
 	bcsr_init(PB1550_BCSR_PHYS_ADDR,
 		  PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS);
 
-
-#ifdef CONFIG_SERIAL_8250_CONSOLE
-	char *argptr;
 	argptr = prom_getcmdline();
+#ifdef CONFIG_SERIAL_8250_CONSOLE
 	argptr = strstr(argptr, "console=");
 	if (argptr == NULL) {
 		argptr = prom_getcmdline();