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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 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
*/
typedef struct amdfam10_sysconf_t sys_info_conf_t;
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 dram_base_mask_t d;
device_t dev = __f1_dev[0];
u32 temp;
temp = pci_read_config32(dev, 0x44 + (nodeid << 3)); //[39:24] at [31:16]
d.mask = ((temp & 0xfff80000)>>(8+3)); // mask out DramMask [26:24] too
temp = pci_read_config32(dev, 0x144 + (nodeid <<3)) & 0xff; //[47:40] at [7:0]
d.mask |= temp<<21;
temp = pci_read_config32(dev, 0x40 + (nodeid << 3)); //[39:24] at [31:16]
d.mask |= (temp & 1); // enable bit
d.base = ((temp & 0xfff80000)>>(8+3)); // mask out DramBase [26:24) too
temp = pci_read_config32(dev, 0x140 + (nodeid <<3)) & 0xff; //[47:40] at [7:0]
d.base |= temp<<21;
return d;
}
static void set_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index,
u32 busn_min, u32 busn_max, u32 segbit,
u32 nodes)
{
u32 tempreg;
u32 i;
busn_min>>=segbit;
busn_max>>=segbit;
tempreg = 3 | ((nodeid&0xf)<<4) | ((nodeid & 0x30)<<(12-4))|(linkn<<8)|((busn_min & 0xff)<<16)|((busn_max&0xff)<<24);
for (i=0; i<nodes; i++) {
device_t dev = __f1_dev[i];
pci_write_config32(dev, 0xe0 + ht_c_index * 4, tempreg);
}
}
static void clear_config_map_reg(u32 nodeid, u32 linkn, u32 ht_c_index,
u32 busn_min, u32 busn_max, u32 nodes)
{
u32 i;
for (i=0; i<nodes; i++) {
device_t dev = __f1_dev[i];
pci_write_config32(dev, 0xe0 + ht_c_index * 4, 0);
}
}
#if CONFIG_PCI_BUS_SEGN_BITS
static u32 check_segn(device_t dev, u32 segbusn, u32 nodes,
sys_info_conf_t *sysinfo)
{
//check segbusn here, We need every node have the same segn
if ((segbusn & 0xff)>(0xe0-1)) {// use next segn
u32 segn = (segbusn >> 8) & 0x0f;
segn++;
segbusn = segn<<8;
}
if (segbusn>>8) {
u32 val;
val = pci_read_config32(dev, 0x160);
val &= ~(0xf<<25);
val |= (segbusn & 0xf00)<<(25-8);
pci_write_config32(dev, 0x160, val);
}
return segbusn;
}
#endif
static u32 get_ht_c_index(u32 nodeid, u32 linkn, sys_info_conf_t *sysinfo)
{
u32 tempreg;
u32 ht_c_index = 0;
#if 0
tempreg = 3 | ((nodeid & 0xf) <<4) | ((nodeid & 0x30)<<(12-4)) | (linkn<<8);
for (ht_c_index=0;ht_c_index<4; ht_c_index++) {
reg = pci_read_config32(PCI_DEV(CONFIG_CBB, CONFIG_CDB, 1), 0xe0 + ht_c_index * 4);
if (((reg & 0xffff) == 0x0000)) { /*found free*/
break;
}
}
#endif
tempreg = 3 | ((nodeid & 0x3f)<<2) | (linkn<<8);
for (ht_c_index=0; ht_c_index<32; ht_c_index++) {
if ((sysinfo->ht_c_conf_bus[ht_c_index] & 0xfff) == tempreg) {
return ht_c_index;
}
}
for (ht_c_index=0; ht_c_index<32; ht_c_index++) {
if (sysinfo->ht_c_conf_bus[ht_c_index] == 0) {
return ht_c_index;
}
}
return -1;
}
static void store_ht_c_conf_bus(u32 nodeid, u32 linkn, u32 ht_c_index,
u32 busn_min, u32 busn_max,
sys_info_conf_t *sysinfo)
{
u32 val;
val = 3 | ((nodeid & 0x3f)<<2) | (linkn<<8);
sysinfo->ht_c_conf_bus[ht_c_index] = val | ((busn_min & 0xff) <<12) | (busn_max<<20); // same node need segn are same
}
static u32 get_io_addr_index(u32 nodeid, u32 linkn)
{
u32 index;
for (index=0; index<256; index++) {
if (sysconf.conf_io_addrx[index+4] == 0) {
sysconf.conf_io_addr[index+4] = (nodeid & 0x3f) ;
sysconf.conf_io_addrx[index+4] = 1 | ((linkn & 0x7)<<4);
return index;
}
}
return 0;
}
static u32 get_mmio_addr_index(u32 nodeid, u32 linkn)
{
u32 index;
for (index=0; index<64; index++) {
if (sysconf.conf_mmio_addrx[index+8] == 0) {
sysconf.conf_mmio_addr[index+8] = (nodeid & 0x3f) ;
sysconf.conf_mmio_addrx[index+8] = 1 | ((linkn & 0x7)<<4);
return index;
}
}
return 0;
}
static void store_conf_io_addr(u32 nodeid, u32 linkn, u32 reg, u32 index,
u32 io_min, u32 io_max)
{
u32 val;
/* io range allocation */
index = (reg-0xc0)>>3;
val = (nodeid & 0x3f); // 6 bits used
sysconf.conf_io_addr[index] = val | ((io_max<<8) & 0xfffff000); //limit : with nodeid
val = 3 | ((linkn & 0x7)<<4) ; // 8 bits used
sysconf.conf_io_addrx[index] = val | ((io_min<<8) & 0xfffff000); // base : with enable bit
if (sysconf.io_addr_num < (index+1))
sysconf.io_addr_num = index+1;
}
static void store_conf_mmio_addr(u32 nodeid, u32 linkn, u32 reg, u32 index,
u32 mmio_min, u32 mmio_max)
{
u32 val;
/* io range allocation */
index = (reg-0x80)>>3;
val = (nodeid & 0x3f) ; // 6 bits used
sysconf.conf_mmio_addr[index] = val | (mmio_max & 0xffffff00); //limit : with nodeid and linkn
val = 3 | ((linkn & 0x7)<<4) ; // 8 bits used
sysconf.conf_mmio_addrx[index] = val | (mmio_min & 0xffffff00); // base : with enable bit
if ( sysconf.mmio_addr_num<(index+1))
sysconf.mmio_addr_num = index+1;
}
static void set_io_addr_reg(device_t dev, u32 nodeid, u32 linkn, u32 reg,
u32 io_min, u32 io_max)
{
u32 i;
u32 tempreg;
/* io range allocation */
tempreg = (nodeid&0xf) | ((nodeid & 0x30)<<(8-4)) | (linkn<<4) | ((io_max&0xf0)<<(12-4)); //limit
for (i=0; i<sysconf.nodes; i++)
pci_write_config32(__f1_dev[i], reg+4, tempreg);
tempreg = 3 /*| ( 3<<4)*/ | ((io_min&0xf0)<<(12-4)); //base :ISA and VGA ?
#if 0
// FIXME: can we use VGA reg instead?
if (dev->link[link].bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
printk(BIOS_SPEW, "%s, enabling legacy VGA IO forwarding for %s link %s\n",
__func__, dev_path(dev), link);
tempreg |= PCI_IO_BASE_VGA_EN;
}
if (dev->link[link].bridge_ctrl & PCI_BRIDGE_CTL_NO_ISA) {
tempreg |= PCI_IO_BASE_NO_ISA;
}
#endif
for (i=0; i<sysconf.nodes; i++)
pci_write_config32(__f1_dev[i], 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 i;
u32 tempreg;
/* io range allocation */
tempreg = (nodeid&0xf) | (linkn<<4) | (mmio_max&0xffffff00); //limit
for (i=0; i<nodes; i++)
pci_write_config32(__f1_dev[i], reg+4, tempreg);
tempreg = 3 | (nodeid & 0x30) | (mmio_min&0xffffff00);
for (i=0; i<sysconf.nodes; i++)
pci_write_config32(__f1_dev[i], reg, tempreg);
}
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