diff options
Diffstat (limited to 'src/northbridge/via/vx900/pci_util.c')
-rw-r--r-- | src/northbridge/via/vx900/pci_util.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/northbridge/via/vx900/pci_util.c b/src/northbridge/via/vx900/pci_util.c new file mode 100644 index 0000000000..18d4c114e1 --- /dev/null +++ b/src/northbridge/via/vx900/pci_util.c @@ -0,0 +1,66 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 Alexandru Gagniuc <mr.nuke.me@gmail.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, see <http://www.gnu.org/licenses/>. + */ + +#include "vx900.h" + +void dump_pci_device(device_t dev) +{ + int i; + for (i = 0; i <= 0xff; i++) { + unsigned char val; + if ((i & 0x0f) == 0) + printk(BIOS_DEBUG, "%.2x:", i); + + if ((i & 0x0f) == 0x08) + printk(BIOS_DEBUG, " |"); + + val = pci_read_config8(dev, i); + printk(BIOS_DEBUG, " %.2x", val); + + if ((i & 0x0f) == 0x0f) + printk(BIOS_DEBUG, "\n"); + } +} + +void pci_mod_config8(device_t dev, unsigned int where, + uint8_t clr_mask, uint8_t set_mask) +{ + uint8_t reg8 = pci_read_config8(dev, where); + reg8 &= ~clr_mask; + reg8 |= set_mask; + pci_write_config8(dev, where, reg8); +} + +void pci_mod_config16(device_t dev, unsigned int where, + uint16_t clr_mask, uint16_t set_mask) +{ + uint16_t reg16 = pci_read_config16(dev, where); + reg16 &= ~clr_mask; + reg16 |= set_mask; + pci_write_config16(dev, where, reg16); +} + +void pci_mod_config32(device_t dev, unsigned int where, + uint32_t clr_mask, uint32_t set_mask) +{ + uint32_t reg32 = pci_read_config32(dev, where); + reg32 &= ~clr_mask; + reg32 |= set_mask; + pci_write_config32(dev, where, reg32); +} |