diff options
Diffstat (limited to 'src/mainboard/amd/serengeti_cheetah/get_bus_conf.c')
| -rw-r--r-- | src/mainboard/amd/serengeti_cheetah/get_bus_conf.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/mainboard/amd/serengeti_cheetah/get_bus_conf.c b/src/mainboard/amd/serengeti_cheetah/get_bus_conf.c new file mode 100644 index 0000000000..cc4c0e4219 --- /dev/null +++ b/src/mainboard/amd/serengeti_cheetah/get_bus_conf.c @@ -0,0 +1,140 @@ +#include <console/console.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <string.h> +#include <stdint.h> +#if CONFIG_LOGICAL_CPUS==1 +#include <cpu/amd/dualcore.h> +#endif + +#include <cpu/amd/amdk8_sysconf.h> + +#include "mb_sysconf.h" + +// Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables +struct mb_sysconf_t mb_sysconf; + +static unsigned pci1234x[] = +{ //Here you only need to set value in pci1234 for HT-IO that could be installed or not + //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail + 0x0000ff0, + 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0, +// 0x0000ff0 +}; +static unsigned hcdnx[] = +{ //HT Chain device num, actually it is unit id base of every ht device in chain, assume every chain only have 4 ht device at most + 0x20202020, + 0x20202020, +// 0x20202020, +// 0x20202020, +// 0x20202020, +// 0x20202020, +// 0x20202020, +// 0x20202020, +}; + +extern void get_sblk_pci1234(void); + +static unsigned get_bus_conf_done = 0; + +void get_bus_conf(void) +{ + + unsigned apicid_base; + + device_t dev; + int i; + struct mb_sysconf_t *m; + + if(get_bus_conf_done == 1) return; //do it only once + + get_bus_conf_done = 1; + + sysconf.mb = &mb_sysconf; + + m = sysconf.mb; + + sysconf.hc_possible_num = sizeof(pci1234x)/sizeof(pci1234x[0]); + for(i=0;i<sysconf.hc_possible_num; i++) { + sysconf.pci1234[i] = pci1234x[i]; + sysconf.hcdn[i] = hcdnx[i]; + } + + get_sblk_pci1234(); + + sysconf.sbdn = (sysconf.hcdn[0] >> 8) & 0xff; + m->sbdn3 = sysconf.hcdn[0] & 0xff; + m->sbdn5 = sysconf.hcdn[1] & 0xff; + + m->bus_8132_0 = (sysconf.pci1234[0] >> 16) & 0xff; + m->bus_8111_0 = m->bus_8132_0; + + /* 8111 */ + dev = dev_find_slot(m->bus_8111_0, PCI_DEVFN(sysconf.sbdn,0)); + if (dev) { + m->bus_8111_1 = pci_read_config8(dev, PCI_SECONDARY_BUS); +#if HT_CHAIN_END_UNITID_BASE >= HT_CHAIN_UNITID_BASE + m->bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + m->bus_isa++; +// printk_debug("bus_isa=%d\n",bus_isa); +#endif + } + else { + printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", m->bus_8111_0, sysconf.sbdn); + } + + /* 8132-1 */ + dev = dev_find_slot(m->bus_8132_0, PCI_DEVFN(m->sbdn3,0)); + if (dev) { + m->bus_8132_1 = pci_read_config8(dev, PCI_SECONDARY_BUS); + } + else { + printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", m->bus_8132_0, m->sbdn3); + } + + /* 8132-2 */ + dev = dev_find_slot(m->bus_8132_0, PCI_DEVFN(m->sbdn3+1,0)); + if (dev) { + m->bus_8132_2 = pci_read_config8(dev, PCI_SECONDARY_BUS); +#if HT_CHAIN_END_UNITID_BASE < HT_CHAIN_UNITID_BASE + m->bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + m->bus_isa++; +// printk_debug("bus_isa=%d\n",bus_isa); +#endif + } + else { + printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", m->bus_8132_0, m->sbdn3+1); + } + + /* HT chain 1 */ + if((sysconf.pci1234[1] & 0x1) == 1) { + m->bus_8151_0 = (sysconf.pci1234[1] >> 16) & 0xff; + /* 8151 */ + dev = dev_find_slot(m->bus_8151_0, PCI_DEVFN(m->sbdn5+1, 0)); + + if (dev) { + m->bus_8151_1 = pci_read_config8(dev, PCI_SECONDARY_BUS); +// printk_debug("bus_8151_1=%d\n",bus_8151_1); + m->bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); + m->bus_isa++; + } + else { + printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", m->bus_8151_0, m->sbdn5+1); + } + } + +/*I/O APICs: APIC ID Version State Address*/ +#if CONFIG_LOGICAL_CPUS==1 + apicid_base = get_apicid_base(3); +#else + apicid_base = CONFIG_MAX_PHYSICAL_CPUS; +#endif + m->apicid_8111 = apicid_base+0; + m->apicid_8132_1 = apicid_base+1; + m->apicid_8132_2 = apicid_base+2; +} |