diff options
Diffstat (limited to 'xen/drivers/char/dt-uart.c')
| -rw-r--r-- | xen/drivers/char/dt-uart.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/xen/drivers/char/dt-uart.c b/xen/drivers/char/dt-uart.c index 93bb0f5845..d7204fb4cd 100644 --- a/xen/drivers/char/dt-uart.c +++ b/xen/drivers/char/dt-uart.c @@ -26,9 +26,10 @@ /* * Configure UART port with a string: - * alias,options + * path,options * - * @alias: alias used in the device tree for the UART + * @path: full path used in the device tree for the UART. If the path + * doesn't start with '/', we assuming that it's an alias. * @options: UART speficic options (see in each UART driver) */ static char __initdata opt_dtuart[30] = ""; @@ -38,7 +39,7 @@ void __init dt_uart_init(void) { struct dt_device_node *dev; int ret; - const char *devalias = opt_dtuart; + const char *devpath = opt_dtuart; char *options; if ( !console_has("dtuart") || !strcmp(opt_dtuart, "") ) @@ -53,12 +54,15 @@ void __init dt_uart_init(void) else options = ""; - early_printk("Looking for UART console %s\n", devalias); - dev = dt_find_node_by_alias(devalias); + early_printk("Looking for UART console %s\n", devpath); + if ( *devpath == '/' ) + dev = dt_find_node_by_path(devpath); + else + dev = dt_find_node_by_alias(devpath); if ( !dev ) { - early_printk("Unable to find device \"%s\"\n", devalias); + early_printk("Unable to find device \"%s\"\n", devpath); return; } |