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diff --git a/src/southbridge/amd/sr5650/cmn.h b/src/southbridge/amd/sr5650/cmn.h
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+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 Advanced Micro Devices, 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.
+ *
+ * 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
+ */
+
+#ifndef __SR5650_CMN_H__
+#define __SR5650_CMN_H__
+
+#define NBMISC_INDEX 0x60
+#define NBHTIU_INDEX 0x94 /* Note: It is different with RS690, whose HTIU index is 0xA8 */
+#define NBMC_INDEX 0xE8
+#define NBPCIE_INDEX 0xE0
+#define EXT_CONF_BASE_ADDRESS 0xE0000000
+#define TEMP_MMIO_BASE_ADDRESS 0xC0000000
+
+static inline u32 nb_read_index(device_t dev, u32 index_reg, u32 index)
+{
+ pci_write_config32(dev, index_reg, index);
+ return pci_read_config32(dev, index_reg + 0x4);
+}
+
+static inline void nb_write_index(device_t dev, u32 index_reg, u32 index, u32 data)
+{
+ pci_write_config32(dev, index_reg, index);
+ pci_write_config32(dev, index_reg + 0x4, data);
+}
+
+static inline u32 nbmisc_read_index(device_t nb_dev, u32 index)
+{
+ return nb_read_index((nb_dev), NBMISC_INDEX, (index));
+}
+
+static inline void nbmisc_write_index(device_t nb_dev, u32 index, u32 data)
+{
+ nb_write_index((nb_dev), NBMISC_INDEX, ((index) | 0x80), (data));
+}
+
+static inline void set_nbmisc_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask,
+ u32 val)
+{
+ u32 reg_old, reg;
+ reg = reg_old = nbmisc_read_index(nb_dev, reg_pos);
+ reg &= ~mask;
+ reg |= val;
+ if (reg != reg_old) {
+ nbmisc_write_index(nb_dev, reg_pos, reg);
+ }
+}
+
+static inline u32 htiu_read_index(device_t nb_dev, u32 index)
+{
+ return nb_read_index((nb_dev), NBHTIU_INDEX, (index));
+}
+
+static inline void htiu_write_index(device_t nb_dev, u32 index, u32 data)
+{
+ nb_write_index((nb_dev), NBHTIU_INDEX, ((index) | 0x100), (data));
+}
+
+static inline u32 nbmc_read_index(device_t nb_dev, u32 index)
+{
+ return nb_read_index((nb_dev), NBMC_INDEX, (index));
+}
+
+static inline void nbmc_write_index(device_t nb_dev, u32 index, u32 data)
+{
+ nb_write_index((nb_dev), NBMC_INDEX, ((index) | 1 << 9), (data));
+}
+
+static inline void set_htiu_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask,
+ u32 val)
+{
+ u32 reg_old, reg;
+ reg = reg_old = htiu_read_index(nb_dev, reg_pos);
+ reg &= ~mask;
+ reg |= val;
+ if (reg != reg_old) {
+ htiu_write_index(nb_dev, reg_pos, reg);
+ }
+}
+
+static inline void set_nbcfg_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask,
+ u32 val)
+{
+ u32 reg_old, reg;
+ reg = reg_old = pci_read_config32(nb_dev, reg_pos);
+ reg &= ~mask;
+ reg |= val;
+ if (reg != reg_old) {
+ pci_write_config32(nb_dev, reg_pos, reg);
+ }
+}
+
+static inline void set_nbcfg_enable_bits_8(device_t nb_dev, u32 reg_pos, u8 mask,
+ u8 val)
+{
+ u8 reg_old, reg;
+ reg = reg_old = pci_read_config8(nb_dev, reg_pos);
+ reg &= ~mask;
+ reg |= val;
+ if (reg != reg_old) {
+ pci_write_config8(nb_dev, reg_pos, reg);
+ }
+}
+
+static inline void set_nbmc_enable_bits(device_t nb_dev, u32 reg_pos, u32 mask,
+ u32 val)
+{
+ u32 reg_old, reg;
+ reg = reg_old = nbmc_read_index(nb_dev, reg_pos);
+ reg &= ~mask;
+ reg |= val;
+ if (reg != reg_old) {
+ nbmc_write_index(nb_dev, reg_pos, reg);
+ }
+}
+
+static inline void set_pcie_enable_bits(device_t dev, u32 reg_pos, u32 mask, u32 val)
+{
+ u32 reg_old, reg;
+ reg = reg_old = nb_read_index(dev, NBPCIE_INDEX, reg_pos);
+ reg &= ~mask;
+ reg |= val;
+ if (reg != reg_old) {
+ nb_write_index(dev, NBPCIE_INDEX, reg_pos, reg);
+ }
+}
+#endif /* __SR5650_CMN_H__ */