> +++ b/arch/microblaze/kernel/early_printk.c > @@ -0,0 +1,130 @@ > +#ifdef CONFIG_EARLY_PRINTK > +#define BASE_ADDR ((unsigned char *)CONFIG_EARLY_PRINTK_UARTLITE_ADDRESS) This is a problem - default value of EARLY_PRINTK_UARTLITE_ADDRESS is 0x0, so by default the kernel will try to access a uartlite at 0x0 which is the reset vector! I know there is the test in the actual output routine but it's not good to rely on that in the default case. Can we either #if CONFIG_EARLY_PRINTK_UARTLITE_ADDRESS==0 #warning EARLY_PRINTK address not set, disabling ... #else .. #endif or query the OF subsystem (is it up yet?), and default to using the first uartlite in the system for early printk? John -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html