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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 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.
*/
/*
* No includes in this file because it is included into northbridge.c.
*/
struct dram_base_mask_t {
u32 base; //[47:27] at [28:8]
u32 mask; //[47:27] at [28:8] and enable at bit 0
};
static struct dram_base_mask_t get_dram_base_mask(u32 nodeid)
{
struct device *dev;
struct dram_base_mask_t d;
#if defined(__PRE_RAM__)
dev = PCI_DEV(0, DEV_CDB, 1);
#else
dev = __f1_dev[0];
#endif // defined(__PRE_RAM__)
u32 temp;
temp = pci_read_config32(dev, 0x44); //[39:24] at [31:16]
d.mask = (temp & 0xffff0000); // mask out DramMask [26:24] too
temp = pci_read_config32(dev, 0x40); //[35:24] at [27:16]
d.mask |= (temp & 1); // read enable bit
d.base = (temp & 0x0fff0000); // mask out DramBase [26:24) too
return d;
}
#if defined(__PRE_RAM__)
static void set_ht_c_io_addr_reg(u32 nodeid, u32 linkn, u32 ht_c_index,
u32 io_min, u32 io_max, u32 nodes)
{
u32 i;
u32 tempreg;
struct device *dev;
/* io range allocation */
tempreg = (nodeid&0xf) | ((nodeid & 0x30)<<(8-4)) | (linkn << 4) | ((io_max&0xf0)<<(12-4)); //limit
for (i = 0; i < nodes; i++) {
dev = NODE_PCI(i, 1);
pci_write_config32(dev, 0xC4 + ht_c_index * 8, tempreg);
}
tempreg = 3 /*| (3 << 4)*/ | ((io_min&0xf0)<<(12-4)); //base :ISA and VGA ?
for (i = 0; i < nodes; i++) {
dev = NODE_PCI(i, 1);
pci_write_config32(dev, 0xC0 + ht_c_index * 8, tempreg);
}
}
static void clear_ht_c_io_addr_reg(u32 nodeid, u32 linkn, u32 ht_c_index,
u32 io_min, u32 io_max, u32 nodes)
{
u32 i;
struct device *dev;
/* io range allocation */
for (i = 0; i < nodes; i++) {
dev = NODE_PCI(i, 1);
pci_write_config32(dev, 0xC4 + ht_c_index * 8, 0);
pci_write_config32(dev, 0xC0 + ht_c_index * 8, 0);
}
}
#endif // defined(__PRE_RAM__)
#if !defined(__PRE_RAM__)
static u32 get_io_addr_index(u32 nodeid, u32 linkn)
{
return 0;
}
static u32 get_mmio_addr_index(u32 nodeid, u32 linkn)
{
return 0;
}
static void set_io_addr_reg(struct device *dev, u32 nodeid, u32 linkn, u32 reg,
u32 io_min, u32 io_max)
{
u32 tempreg;
/* io range allocation */
tempreg = (nodeid&0xf) | ((nodeid & 0x30)<<(8-4)) | (linkn << 4) | ((io_max&0xf0)<<(12-4)); //limit
pci_write_config32(__f1_dev[0], reg+4, tempreg);
tempreg = 3 /*| (3 << 4)*/ | ((io_min&0xf0)<<(12-4)); //base :ISA and VGA ?
pci_write_config32(__f1_dev[0], reg, tempreg);
}
static void set_mmio_addr_reg(u32 nodeid, u32 linkn, u32 reg, u32 index, u32 mmio_min, u32 mmio_max, u32 nodes)
{
u32 tempreg;
/* io range allocation */
tempreg = (nodeid&0xf) | (linkn << 4) | (mmio_max&0xffffff00); //limit
pci_write_config32(__f1_dev[0], reg+4, tempreg);
tempreg = 3 | (nodeid & 0x30) | (mmio_min&0xffffff00);
pci_write_config32(__f1_dev[0], reg, tempreg);
}
#endif // !defined(__PRE_RAM__)
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