AGESA: Use pcidev_on_root()

We have constant CONFIG_CBB==0, replace ill dev_find_slot()
with safe pcidev_on_root();

Change-Id: Ieb2030fa3d77a9f49fc5faf12b92b5f00f49d354
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/26482
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/northbridge/amd/agesa/family16kb/northbridge.c b/src/northbridge/amd/agesa/family16kb/northbridge.c
index 03db042..cf7e3f8 100644
--- a/src/northbridge/amd/agesa/family16kb/northbridge.c
+++ b/src/northbridge/amd/agesa/family16kb/northbridge.c
@@ -98,7 +98,7 @@
 
 static struct device *get_node_pci(u32 nodeid, u32 fn)
 {
-	return dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB + nodeid, fn));
+	return pcidev_on_root(CONFIG_CDB + nodeid, fn);
 }
 
 static void get_fx_devs(void)
@@ -567,12 +567,12 @@
 {
 	struct device *dev;
 	u32 value;
-	dev = dev_find_slot(0, PCI_DEVFN(0, 0)); /* clear IoapicSbFeatureEn */
+	dev = pcidev_on_root(0, 0); /* clear IoapicSbFeatureEn */
 	pci_write_config32(dev, 0xF8, 0);
 	pci_write_config32(dev, 0xFC, 5); /* TODO: move it to dsdt.asl */
 
 	/* disable No Snoop */
-	dev = dev_find_slot(0, PCI_DEVFN(1, 1));
+	dev = pcidev_on_root(1, 1);
 	value = pci_read_config32(dev, 0x60);
 	value &= ~(1 << 11);
 	pci_write_config32(dev, 0x60, value);
@@ -843,7 +843,7 @@
 	int siblings = 0;
 	unsigned int family;
 
-	dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
+	dev_mc = pcidev_on_root(CONFIG_CDB, 0);
 	if (!dev_mc) {
 		printk(BIOS_ERR, "%02x:%02x.0 not found", CONFIG_CBB, CONFIG_CDB);
 		die("");
@@ -872,7 +872,7 @@
 		pbus = dev_mc->bus;
 
 		/* Find the cpu's pci device */
-		cdb_dev = dev_find_slot(CONFIG_CBB, PCI_DEVFN(devn, 0));
+		cdb_dev = pcidev_on_root(devn, 0);
 		if (!cdb_dev) {
 			/* If I am probing things in a weird order
 			 * ensure all of the cpu's pci devices are found.
@@ -882,7 +882,7 @@
 				cdb_dev = pci_probe_dev(NULL, pbus,
 							PCI_DEVFN(devn, fn));
 			}
-			cdb_dev = dev_find_slot(CONFIG_CBB, PCI_DEVFN(devn, 0));
+			cdb_dev = pcidev_on_root(devn, 0);
 		} else {
 			/* Ok, We need to set the links for that device.
 			 * otherwise the device under it will not be scanned
@@ -894,11 +894,11 @@
 		family = (family >> 20) & 0xFF;
 		if (family == 1) { //f10
 			u32 dword;
-			cdb_dev = dev_find_slot(CONFIG_CBB, PCI_DEVFN(devn, 3));
+			cdb_dev = pcidev_on_root(devn, 3);
 			dword = pci_read_config32(cdb_dev, 0xe8);
 			siblings = ((dword & BIT15) >> 13) | ((dword & (BIT13 | BIT12)) >> 12);
 		} else if (family == 7) {//f16
-			cdb_dev = dev_find_slot(CONFIG_CBB, PCI_DEVFN(devn, 5));
+			cdb_dev = pcidev_on_root(devn, 5);
 			if (cdb_dev && cdb_dev->enabled) {
 				siblings = pci_read_config32(cdb_dev, 0x84);
 				siblings &= 0xFF;