diff options
Diffstat (limited to 'src/soc/amd/common/block')
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/amd_pci_mmconf.h | 19 | ||||
| -rw-r--r-- | src/soc/amd/common/block/pci/Makefile.inc | 5 | ||||
| -rw-r--r-- | src/soc/amd/common/block/pci/amd_pci_mmconf.c | 27 |
3 files changed, 48 insertions, 3 deletions
diff --git a/src/soc/amd/common/block/include/amdblocks/amd_pci_mmconf.h b/src/soc/amd/common/block/include/amdblocks/amd_pci_mmconf.h new file mode 100644 index 0000000000..4b65ad0948 --- /dev/null +++ b/src/soc/amd/common/block/include/amdblocks/amd_pci_mmconf.h @@ -0,0 +1,19 @@ +/* + * This file is part of the coreboot project. + * + * 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. + */ + +#ifndef __AMDBLOCKS_PCI_MMCONF_H__ +#define __AMDBLOCKS_PCI_MMCONF_H__ + +void enable_pci_mmconf(void); + +#endif diff --git a/src/soc/amd/common/block/pci/Makefile.inc b/src/soc/amd/common/block/pci/Makefile.inc index fc40c9d478..558a7ac736 100644 --- a/src/soc/amd/common/block/pci/Makefile.inc +++ b/src/soc/amd/common/block/pci/Makefile.inc @@ -1,5 +1,4 @@ -ifeq ($(CONFIG_SOC_AMD_COMMON_BLOCK_PCI),y) -ramstage-y += amd_pci_util.c +ramstage-$(CONFIG_SOC_AMD_COMMON_BLOCK_PCI) += amd_pci_util.c -endif +all-y += amd_pci_mmconf.c diff --git a/src/soc/amd/common/block/pci/amd_pci_mmconf.c b/src/soc/amd/common/block/pci/amd_pci_mmconf.c new file mode 100644 index 0000000000..1aed51bf1b --- /dev/null +++ b/src/soc/amd/common/block/pci/amd_pci_mmconf.c @@ -0,0 +1,27 @@ +/* + * This file is part of the coreboot project. + * + * 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 <amdblocks/amd_pci_mmconf.h> +#include <cpu/amd/msr.h> +#include <cpu/x86/msr.h> +#include <cpu/x86/mtrr.h> + +void enable_pci_mmconf(void) +{ + msr_t mmconf; + + mmconf.hi = 0; + mmconf.lo = CONFIG_MMCONF_BASE_ADDRESS | MMIO_RANGE_EN + | fms(CONFIG_MMCONF_BUS_NUMBER) << MMIO_BUS_RANGE_SHIFT; + wrmsr(MMIO_CONF_BASE, mmconf); +} |