diff options
Diffstat (limited to 'src/southbridge/intel/bd82x6x/early_rcba.c')
| -rw-r--r-- | src/southbridge/intel/bd82x6x/early_rcba.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/southbridge/intel/bd82x6x/early_rcba.c b/src/southbridge/intel/bd82x6x/early_rcba.c new file mode 100644 index 0000000000..114b1749f2 --- /dev/null +++ b/src/southbridge/intel/bd82x6x/early_rcba.c @@ -0,0 +1,69 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2010 coresystems GmbH + * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. + * Copyright (C) 2014 Vladimir Serbinenko + * + * 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. + * + * 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 <stdint.h> +#include "pch.h" +#include "northbridge/intel/sandybridge/sandybridge.h" + +void +southbridge_configure_default_intmap(void) +{ + /* + * GFX INTA -> PIRQA (MSI) + * D28IP_P1IP SLOT1 INTA -> PIRQB + * D28IP_P2IP SLOT2 INTB -> PIRQF + * D28IP_P3IP SLOT3 INTC -> PIRQD + * D28IP_P5IP SLOT5 INTC -> PIRQD + * D29IP_E1P EHCI1 INTA -> PIRQD + * D26IP_E2P EHCI2 INTA -> PIRQF + * D31IP_SIP SATA INTA -> PIRQB (MSI) + * D31IP_SMIP SMBUS INTB -> PIRQH + * D31IP_TTIP THRT INTC -> PIRQA + * D27IP_ZIP HDA INTA -> PIRQA (MSI) + * + + */ + + RCBA32(D31IP) = (INTC << D31IP_TTIP) | (NOINT << D31IP_SIP2) | + (INTB << D31IP_SMIP) | (INTA << D31IP_SIP); + RCBA32(D30IP) = (NOINT << D30IP_PIP); + RCBA32(D29IP) = (INTA << D29IP_E1P); + RCBA32(D28IP) = (INTA << D28IP_P1IP) | (INTB << D28IP_P2IP) | + (INTC << D28IP_P3IP) | (INTC << D28IP_P5IP); + RCBA32(D27IP) = (INTA << D27IP_ZIP); + RCBA32(D26IP) = (INTA << D26IP_E2P); + RCBA32(D25IP) = (NOINT << D25IP_LIP); + RCBA32(D22IP) = (NOINT << D22IP_MEI1IP); + + /* Device interrupt route registers */ + DIR_ROUTE(D31IR, PIRQB, PIRQH, PIRQA, PIRQC); + DIR_ROUTE(D29IR, PIRQD, PIRQE, PIRQF, PIRQG); + DIR_ROUTE(D28IR, PIRQB, PIRQF, PIRQD, PIRQE); + DIR_ROUTE(D27IR, PIRQA, PIRQH, PIRQA, PIRQB); + DIR_ROUTE(D26IR, PIRQF, PIRQE, PIRQG, PIRQH); + DIR_ROUTE(D25IR, PIRQA, PIRQB, PIRQC, PIRQD); + DIR_ROUTE(D22IR, PIRQA, PIRQB, PIRQC, PIRQD); + + /* Enable IOAPIC (generic) */ + RCBA16(OIC) = 0x0100; + /* PCH BWG says to read back the IOAPIC enable register */ + (void) RCBA16(OIC); +} |