/* * This file is part of the coreboot project. * * Copyright 2013 Google Inc. * * 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 <console/console.h> #include <device/pci_def.h> #include <arch/io.h> #include <device/device.h> #include <device/pci.h> #include "pch.h" void pch_config_rcba(const struct rcba_config_instruction *rcba_config) { const struct rcba_config_instruction *rc; u32 value; rc = rcba_config; while (rc->command != RCBA_COMMAND_END) { if ((rc->command & RCBA_REG_SIZE_MASK) == RCBA_REG_SIZE_16) { switch (rc->command & RCBA_COMMAND_MASK) { case RCBA_COMMAND_SET: RCBA16(rc->reg) = (u16)rc->or_value; break; case RCBA_COMMAND_READ: (void)RCBA16(rc->reg); break; case RCBA_COMMAND_RMW: value = RCBA16(rc->reg); value &= rc->mask; value |= rc->or_value; RCBA16(rc->reg) = (u16)value; break; } } else { switch (rc->command & RCBA_COMMAND_MASK) { case RCBA_COMMAND_SET: RCBA32(rc->reg) = rc->or_value; break; case RCBA_COMMAND_READ: (void)RCBA32(rc->reg); break; case RCBA_COMMAND_RMW: value = RCBA32(rc->reg); value &= rc->mask; value |= rc->or_value; RCBA32(rc->reg) = value; break; } } rc++; } }