mxs: Convert timeout parameter to 'unsigned int'

For representing a timeout value, it makes more sense to pass it as
'unsigned int'.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>

arch/arm/cpu/arm926ejs/mxs/mxs.c

@@ -81,7 +81,8 @@ void enable_caches(void)
 #endif
 }
 
-int mxs_wait_mask_set(struct mxs_register_32 *reg, uint32_t mask, int timeout)
+int mxs_wait_mask_set(struct mxs_register_32 *reg, uint32_t mask, unsigned
+								int timeout)
 {
 	while (--timeout) {
 		if ((readl(&reg->reg) & mask) == mask)
@@ -92,7 +93,8 @@ int mxs_wait_mask_set(struct mxs_register_32 *reg, uint32_t mask, int timeout)
 	return !timeout;
 }
 
-int mxs_wait_mask_clr(struct mxs_register_32 *reg, uint32_t mask, int timeout)
+int mxs_wait_mask_clr(struct mxs_register_32 *reg, uint32_t mask, unsigned
+								int timeout)
 {
 	while (--timeout) {
 		if ((readl(&reg->reg) & mask) == 0)

arch/arm/include/asm/arch-mxs/sys_proto.h

@@ -26,10 +26,10 @@
 int mxs_reset_block(struct mxs_register_32 *reg);
 int mxs_wait_mask_set(struct mxs_register_32 *reg,
 		       uint32_t mask,
-		       int timeout);
+		       unsigned int timeout);
 int mxs_wait_mask_clr(struct mxs_register_32 *reg,
 		       uint32_t mask,
-		       int timeout);
+		       unsigned int timeout);
 
 int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int));