Initial import of qemu-2.4.1HEADmaster

1 files changed, 49 insertions, 0 deletions

diff --git a/roms/u-boot/arch/x86/cpu/coreboot/pci.c b/roms/u-boot/arch/x86/cpu/coreboot/pci.c
new file mode 100644
index 00000000..33f16a30
--- /dev/null
+++ b/roms/u-boot/arch/x86/cpu/coreboot/pci.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * (C) Copyright 2008,2009
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <pci.h>
+#include <asm/pci.h>
+
+static struct pci_controller coreboot_hose;
+
+static void config_pci_bridge(struct pci_controller *hose, pci_dev_t dev,
+			      struct pci_config_table *table)
+{
+	u8 secondary;
+	hose->read_byte(hose, dev, PCI_SECONDARY_BUS, &secondary);
+	hose->last_busno = max(hose->last_busno, secondary);
+	pci_hose_scan_bus(hose, secondary);
+}
+
+static struct pci_config_table pci_coreboot_config_table[] = {
+	/* vendor, device, class, bus, dev, func */
+	{ PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_BRIDGE_PCI,
+		PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, &config_pci_bridge },
+	{}
+};
+
+void pci_init_board(void)
+{
+	coreboot_hose.config_table = pci_coreboot_config_table;
+	coreboot_hose.first_busno = 0;
+	coreboot_hose.last_busno = 0;
+
+	pci_set_region(coreboot_hose.regions + 0, 0x0, 0x0, 0xffffffff,
+		PCI_REGION_MEM);
+	coreboot_hose.region_count = 1;
+
+	pci_setup_type1(&coreboot_hose);
+
+	pci_register_hose(&coreboot_hose);
+
+	pci_hose_scan(&coreboot_hose);
+}