mtd: nand: davinci: only try to fix mux settings on dm6446

Those mux settings are only valid for dm6446, so put that
under a conditional.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>

drivers/mtd/nand/davinci_nand.c

@@ -50,6 +50,7 @@
 #include <mach/nand.h>
 #include <mach/mux.h>
 
+#include <asm/mach-types.h>
 #include <asm/mach/flash.h>
 
 #ifdef CONFIG_NAND_FLASH_HW_ECC
@@ -429,6 +430,14 @@ static void __init nand_davinci_flash_init(struct davinci_nand_info *info)
 {
 	u32 regval, tmp;
 
+	/* The following mux setting are for dm6446 only,
+	 * that's why we keep them inside the above conditional
+	 * so we don't mess up other arch's mux settings.
+	 *
+	 * FIXME ideally, this should be done by board support,
+	 * move it there at some point.
+	 */
+	if (machine_is_davinci_evm()) {
 		/* Check for correct pin mux, reconfigure if necessary */
 		tmp = davinci_readl(DAVINCI_SYSTEM_MODULE_BASE + PINMUX0);
 
@@ -452,6 +461,7 @@ static void __init nand_davinci_flash_init(struct davinci_nand_info *info)
 					"PINMUX0 reg to 0x%08x, was 0x%08x, should be done " \
 					"by bootloader.\n", regval, tmp);
 		}
+	}
 
 	regval = davinci_nand_readl(info, AWCCR_OFFSET);
 	regval |= 0x10000000;