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author | Damien Zammit <damien@zamaudio.com> | 2015-08-19 15:16:59 +1000 |
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committer | Martin Roth <martinroth@google.com> | 2015-12-29 18:03:33 +0100 |
commit | 43a1f780ff6809f758092136b0b38c6917c27340 (patch) | |
tree | ebb641caf31e477a61addedc46678ba6be4b4889 /src/northbridge/intel/x4x/bootblock.c | |
parent | e7a336ac29b1ef5aaa1b0aa4926ed75829b491b1 (diff) | |
download | coreboot-43a1f780ff6809f758092136b0b38c6917c27340.tar.gz coreboot-43a1f780ff6809f758092136b0b38c6917c27340.tar.bz2 coreboot-43a1f780ff6809f758092136b0b38c6917c27340.zip |
northbridge/intel/x4x: Intel 4-series northbridge support
Boots to console on Gigabyte GA-G41M-ES2L
Ram initialization *not* included in this patch
VGA native init works on analog connector
Change-Id: I5262f73fd03d5e5c12e9f11d027bdfbbf0ddde82
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/11305
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src/northbridge/intel/x4x/bootblock.c')
-rw-r--r-- | src/northbridge/intel/x4x/bootblock.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/northbridge/intel/x4x/bootblock.c b/src/northbridge/intel/x4x/bootblock.c new file mode 100644 index 000000000000..0a8946c5ec69 --- /dev/null +++ b/src/northbridge/intel/x4x/bootblock.c @@ -0,0 +1,32 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Damien Zammit <damien@zamaudio.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. + */ + +#include <arch/io.h> + +#define D0F0_PCIEXBAR_LO 0x60 +#define TPMBASE 0xfed40000 +#define TPM32(x) *((volatile u32 *)(TPMBASE + x)) + +static void bootblock_northbridge_init(void) +{ + uint32_t reg32; + + /* Disable LaGrande Technology (LT) */ + reg32 = TPM32(0); + + reg32 = CONFIG_MMCONF_BASE_ADDRESS | 16 | 1; + pci_io_write_config32(PCI_DEV(0,0,0), D0F0_PCIEXBAR_LO, reg32); +} |