davinci: Add machine checks to DA8XX serial console init routines

This patch adds machine checks in the serial console init routines
for the DA8XX EVM boards.  This is needed because there are other
DA8XX based machines that use a different UART/tty as the console
and may be included in a common kernel build.

Signed-off-by: Michael Williamson <michael.williamson@criticallink.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index de82739..ef1ab0b 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -598,6 +598,9 @@
 #ifdef CONFIG_SERIAL_8250_CONSOLE
 static int __init da830_evm_console_init(void)
 {
+	if (!machine_is_davinci_da830_evm())
+		return 0;
+
 	return add_preferred_console("ttyS", 2, "115200");
 }
 console_initcall(da830_evm_console_init);