amdfam10 boards: Drop array bus_sp5100

Only bus_sp5100[0] is evaluated.

Change-Id: I42a5040ea70a84fb674f2c616c6eba7b23dcdc29
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30645
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

6 files changed, 6 insertions, 37 deletions

diff --git a/src/mainboard/asus/kcma-d8/get_bus_conf.c b/src/mainboard/asus/kcma-d8/get_bus_conf.c
index af893914f8..03a8415cfc 100644
--- a/src/mainboard/asus/kcma-d8/get_bus_conf.c
+++ b/src/mainboard/asus/kcma-d8/get_bus_conf.c
@@ -25,7 +25,6 @@
 /* Global variables for MB layouts and these will be shared by irqtable mptable
 * and acpi_tables busnum is default.
 */
-u8 bus_sp5100[2];
 u32 apicid_sp5100;
 
 /*
@@ -50,7 +49,6 @@ u32 hcdnx[] = {
 void get_bus_conf(void)
 {
 	u32 apicid_base;
-	struct device *dev;
 	int i;
 
 	sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
@@ -63,17 +61,7 @@ void get_bus_conf(void)
 
 	sysconf.sbdn = (sysconf.hcdn[0] & 0xff);
 
-	for (i = 0; i < 2; i++) {
-		bus_sp5100[i] = 0;
-	}
-
-	bus_sp5100[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-
-	/* sp5100 */
-	dev = dev_find_slot(bus_sp5100[0], PCI_DEVFN(0x14, 4));
-	if (dev) {
-		bus_sp5100[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
-	}
+	pirq_router_bus = (sysconf.pci1234[0] >> 16) & 0xff;
 
 	/* I/O APICs:   APIC ID Version State   Address */
 	if (IS_ENABLED(CONFIG_LOGICAL_CPUS))
diff --git a/src/mainboard/asus/kcma-d8/irq_tables.c b/src/mainboard/asus/kcma-d8/irq_tables.c
index df6dae06cc..06e842a09b 100644
--- a/src/mainboard/asus/kcma-d8/irq_tables.c
+++ b/src/mainboard/asus/kcma-d8/irq_tables.c
@@ -60,7 +60,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->rfu = rfu;
 }
 
-extern u8 bus_sp5100[2];
 
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
@@ -86,7 +85,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->version = PIRQ_VERSION;
 
 	/* Where the interrupt router resides */
-	pirq->rtr_bus = bus_sp5100[0];
+	pirq->rtr_bus = pirq_router_bus;
 	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
@@ -102,7 +101,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sp5100[0],
+	write_pirq_info(pirq_info, pirq_router_bus,
 			PCI_DEVFN(0x14, 4), LNKA, IRQBM, LNKB,
 			IRQBM, LNKC, IRQBM, LNKD, IRQBM, 0, 0);
 	pirq_info++;
diff --git a/src/mainboard/asus/kcma-d8/mptable.c b/src/mainboard/asus/kcma-d8/mptable.c
index 68b90b0877..44ba1567ae 100644
--- a/src/mainboard/asus/kcma-d8/mptable.c
+++ b/src/mainboard/asus/kcma-d8/mptable.c
@@ -21,8 +21,6 @@
 #include <stdint.h>
 #include <cpu/amd/amdfam10_sysconf.h>
 
-extern u8 bus_sp5100[2];
-
 extern u32 apicid_sp5100;
 
 
diff --git a/src/mainboard/asus/kgpe-d16/get_bus_conf.c b/src/mainboard/asus/kgpe-d16/get_bus_conf.c
index af893914f8..03a8415cfc 100644
--- a/src/mainboard/asus/kgpe-d16/get_bus_conf.c
+++ b/src/mainboard/asus/kgpe-d16/get_bus_conf.c
@@ -25,7 +25,6 @@
 /* Global variables for MB layouts and these will be shared by irqtable mptable
 * and acpi_tables busnum is default.
 */
-u8 bus_sp5100[2];
 u32 apicid_sp5100;
 
 /*
@@ -50,7 +49,6 @@ u32 hcdnx[] = {
 void get_bus_conf(void)
 {
 	u32 apicid_base;
-	struct device *dev;
 	int i;
 
 	sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
@@ -63,17 +61,7 @@ void get_bus_conf(void)
 
 	sysconf.sbdn = (sysconf.hcdn[0] & 0xff);
 
-	for (i = 0; i < 2; i++) {
-		bus_sp5100[i] = 0;
-	}
-
-	bus_sp5100[0] = (sysconf.pci1234[0] >> 16) & 0xff;
-
-	/* sp5100 */
-	dev = dev_find_slot(bus_sp5100[0], PCI_DEVFN(0x14, 4));
-	if (dev) {
-		bus_sp5100[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
-	}
+	pirq_router_bus = (sysconf.pci1234[0] >> 16) & 0xff;
 
 	/* I/O APICs:   APIC ID Version State   Address */
 	if (IS_ENABLED(CONFIG_LOGICAL_CPUS))
diff --git a/src/mainboard/asus/kgpe-d16/irq_tables.c b/src/mainboard/asus/kgpe-d16/irq_tables.c
index df6dae06cc..0819dee09e 100644
--- a/src/mainboard/asus/kgpe-d16/irq_tables.c
+++ b/src/mainboard/asus/kgpe-d16/irq_tables.c
@@ -60,8 +60,6 @@ static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
 	pirq_info->rfu = rfu;
 }
 
-extern u8 bus_sp5100[2];
-
 unsigned long write_pirq_routing_table(unsigned long addr)
 {
 	struct irq_routing_table *pirq;
@@ -86,7 +84,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	pirq->version = PIRQ_VERSION;
 
 	/* Where the interrupt router resides */
-	pirq->rtr_bus = bus_sp5100[0];
+	pirq->rtr_bus = pirq_router_bus;
 	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
 
 	pirq->exclusive_irqs = 0;
@@ -102,7 +100,7 @@ unsigned long write_pirq_routing_table(unsigned long addr)
 	slot_num = 0;
 
 	/* pci bridge */
-	write_pirq_info(pirq_info, bus_sp5100[0],
+	write_pirq_info(pirq_info, pirq_router_bus,
 			PCI_DEVFN(0x14, 4), LNKA, IRQBM, LNKB,
 			IRQBM, LNKC, IRQBM, LNKD, IRQBM, 0, 0);
 	pirq_info++;
diff --git a/src/mainboard/asus/kgpe-d16/mptable.c b/src/mainboard/asus/kgpe-d16/mptable.c
index ad4925a825..c1b2a5de5d 100644
--- a/src/mainboard/asus/kgpe-d16/mptable.c
+++ b/src/mainboard/asus/kgpe-d16/mptable.c
@@ -21,8 +21,6 @@
 #include <stdint.h>
 #include <cpu/amd/amdfam10_sysconf.h>
 
-extern u8 bus_sp5100[2];
-
 extern u32 apicid_sp5100;