diff options
Diffstat (limited to 'src/mainboard/asus/kgpe-d16/bootblock.c')
| -rw-r--r-- | src/mainboard/asus/kgpe-d16/bootblock.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/mainboard/asus/kgpe-d16/bootblock.c b/src/mainboard/asus/kgpe-d16/bootblock.c new file mode 100644 index 0000000000..2e9d70f391 --- /dev/null +++ b/src/mainboard/asus/kgpe-d16/bootblock.c @@ -0,0 +1,52 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering + * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com> + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <pc80/mc146818rtc.h> + +void bootblock_mainboard_init(void) +{ + uint8_t recovery_enabled; + unsigned char addr; + unsigned char byte; + + bootblock_northbridge_init(); + bootblock_southbridge_init(); + + /* Recovery jumper is connected to SP5100 GPIO61, and clears the GPIO when placed in the Recovery position */ + recovery_enabled = (!(pci_read_config8(PCI_DEV(0, 0x14, 0), 0x57) & 0x1)); + if (recovery_enabled) { +#if CONFIG_USE_OPTION_TABLE + /* Clear NVRAM checksum */ + for (addr = LB_CKS_RANGE_START; addr <= LB_CKS_RANGE_END; addr++) { + cmos_write(0x0, addr); + } + + /* Set fallback boot */ + byte = cmos_read(RTC_BOOT_BYTE); + byte &= 0xfc; + cmos_write(byte, RTC_BOOT_BYTE); +#else + /* FIXME + * Figure out how to recover if the option table is not available + */ +#endif + } +}
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