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authorPatrick Georgi <patrick.georgi@coresystems.de>2010-09-24 18:42:56 +0000
committerPatrick Georgi <patrick.georgi@coresystems.de>2010-09-24 18:42:56 +0000
commit20979584fe28e9e62a71aa92c5c5ad8074790de4 (patch)
tree473d4f461b50b0fa6ee26415ca8287bf224f0aec /src/mainboard/tyan/s4882
parent0a6d1aebf12b786b4c5cbb85ce14cb89f3498958 (diff)
downloadcoreboot-20979584fe28e9e62a71aa92c5c5ad8074790de4.tar.xz
Automatically fetch bus information for mptable from
the device tree, instead of using hardcoded values. If this changes behaviour, this is either - a bug in mptable_write_buses(), or - a bug in the old mptable or device config, that is they were inconsistent. Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5835 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/mainboard/tyan/s4882')
-rw-r--r--src/mainboard/tyan/s4882/mptable.c13
1 files changed, 2 insertions, 11 deletions
diff --git a/src/mainboard/tyan/s4882/mptable.c b/src/mainboard/tyan/s4882/mptable.c
index a7d11be22f..73dbcfc08f 100644
--- a/src/mainboard/tyan/s4882/mptable.c
+++ b/src/mainboard/tyan/s4882/mptable.c
@@ -49,8 +49,7 @@ static void *smp_write_config_table(void *v)
static const char productid[12] = "S4882 ";
struct mp_config_table *mc;
- unsigned char bus_num;
- unsigned char bus_isa;
+ int bus_isa;
unsigned char bus_chain_0;
unsigned char bus_8131_1;
unsigned char bus_8131_2;
@@ -94,14 +93,11 @@ static void *smp_write_config_table(void *v)
dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x03,0));
if (dev) {
bus_8111_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
- bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
- bus_isa++;
}
else {
printk(BIOS_DEBUG, "ERROR - could not find PCI 1:03.0, using defaults\n");
bus_8111_1 = 4;
- bus_isa = 5;
}
/* 8131-1 */
dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x01,0));
@@ -128,12 +124,7 @@ static void *smp_write_config_table(void *v)
}
/*Bus: Bus ID Type*/
- /* define bus and isa numbers */
- for(bus_num = 0; bus_num < bus_isa; bus_num++) {
- smp_write_bus(mc, bus_num, "PCI ");
- }
- smp_write_bus(mc, bus_isa, "ISA ");
-
+ mptable_write_buses(mc, NULL, &bus_isa);
/*I/O APICs: APIC ID Version State Address*/
#if CONFIG_LOGICAL_CPUS==1