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 | 44 |
1 files changed, 15 insertions, 29 deletions
diff --git a/src/mainboard/amd/serengeti_cheetah/get_bus_conf.c b/src/mainboard/amd/serengeti_cheetah/get_bus_conf.c index 1eb97b59a7..b7f55fd0fb 100644 --- a/src/mainboard/amd/serengeti_cheetah/get_bus_conf.c +++ b/src/mainboard/amd/serengeti_cheetah/get_bus_conf.c @@ -23,30 +23,18 @@ #include <stdlib.h> #include "mb_sysconf.h" -// Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables +/* 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 +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 +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, }; static unsigned get_bus_conf_done = 0; @@ -64,20 +52,20 @@ static unsigned get_hcid(unsigned i) dev = dev_find_slot(busn, PCI_DEVFN(devn, 0)); switch (dev->device) { - case 0x7458: //8132 + case 0x7458: /*8132 */ id = 1; break; - case 0x7454: //8151 + case 0x7454: /*8151 */ id = 2; break; - case 0x7450: //8131 + case 0x7450: /*8131 */ id = 3; break; } - // we may need more way to find out hcid: subsystem id? GPIO read ? + /* we may need more way to find out hcid: subsystem id? GPIO read ? */ - // we need use id for 1. bus num, 2. mptable, 3. ACPI table + /* we need use id for 1. bus num, 2. mptable, 3. ACPI table */ return id; } @@ -92,7 +80,7 @@ void get_bus_conf(void) struct mb_sysconf_t *m; if (get_bus_conf_done == 1) - return; //do it only once + return; /* do it only once */ get_bus_conf_done = 1; @@ -150,13 +138,13 @@ void get_bus_conf(void) if (!(sysconf.pci1234[i] & 0x1)) continue; - // check hcid type here + /* check hcid type here */ sysconf.hcid[i] = get_hcid(i); switch (sysconf.hcid[i]) { - case 1: //8132 - case 3: //8131 + case 1: /* 8132 */ + case 3: /* 8131 */ m->bus_8132a[j][0] = (sysconf.pci1234[i] >> 16) & 0xff; @@ -190,7 +178,7 @@ void get_bus_conf(void) break; - case 2: //8151 + case 2: /* 8151 */ m->bus_8151[j][0] = (sysconf.pci1234[i] >> 16) & 0xff; m->sbdn5[j] = sysconf.hcdn[i] & 0xff; @@ -202,7 +190,6 @@ void get_bus_conf(void) if (dev) { m->bus_8151[j][1] = pci_read_config8(dev, PCI_SECONDARY_BUS); - // printk(BIOS_DEBUG, "bus_8151_1=%d\n",bus_8151[j][1]); } else { printk(BIOS_DEBUG, "ERROR - could not find PCI %02x:%02x.0, using defaults\n", @@ -215,7 +202,7 @@ void get_bus_conf(void) j++; } -/*I/O APICs: APIC ID Version State Address*/ +/* I/O APICs: APIC ID Version State Address */ if (IS_ENABLED(CONFIG_LOGICAL_CPUS)) apicid_base = get_apicid_base(3); else @@ -227,5 +214,4 @@ void get_bus_conf(void) m->apicid_8132a[i][0] = apicid_base + 3 + i * 2; m->apicid_8132a[i][1] = apicid_base + 3 + i * 2 + 1; } - } |