diff options
Diffstat (limited to 'src/ec/lenovo/h8/smm.c')
-rw-r--r-- | src/ec/lenovo/h8/smm.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/ec/lenovo/h8/smm.c b/src/ec/lenovo/h8/smm.c new file mode 100644 index 0000000000..31009a6926 --- /dev/null +++ b/src/ec/lenovo/h8/smm.c @@ -0,0 +1,35 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2016 Nicola Corna <nicola@corna.info> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <ec/acpi/ec.h> +#include <pc80/mc146818rtc.h> + +#include "h8.h" + +void h8_usb_always_on(void) +{ + u8 val; + u8 reg; + + if (get_option(&val, "usb_always_on") != CB_SUCCESS) + val = 0; + + if (val) { + reg = ec_read(H8_USB_ALWAYS_ON); + reg &= ~H8_USB_ALWAYS_ON_AC_ONLY; + reg |= H8_USB_ALWAYS_ON_ENABLE; + ec_write(H8_USB_ALWAYS_ON, reg); + } +} |