1 files changed, 98 insertions, 0 deletions
diff --git a/arch/x86/cpu/pci.c b/arch/x86/cpu/pci.c
new file mode 100644
index 0000000000..e3993880db
--- /dev/null
+++ b/arch/x86/cpu/pci.c
@@ -0,0 +1,98 @@
+/*
+ * 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 <errno.h>
+#include <malloc.h>
+#include <pci.h>
+#include <asm/pci.h>
+
+static struct pci_controller x86_hose;
+
+int pci_early_init_hose(struct pci_controller **hosep)
+{
+	struct pci_controller *hose;
+
+	hose = calloc(1, sizeof(struct pci_controller));
+	if (!hose)
+		return -ENOMEM;
+
+	board_pci_setup_hose(hose);
+	pci_setup_type1(hose);
+	gd->arch.hose = hose;
+	*hosep = hose;
+
+	return 0;
+}
+
+void pci_init_board(void)
+{
+	struct pci_controller *hose = &x86_hose;
+
+	/* Stop using the early hose */
+	gd->arch.hose = NULL;
+
+	board_pci_setup_hose(hose);
+	pci_setup_type1(hose);
+	pci_register_hose(hose);
+
+	hose->last_busno = pci_hose_scan(hose);
+}
+
+static struct pci_controller *get_hose(void)
+{
+	if (gd->arch.hose)
+		return gd->arch.hose;
+
+	return pci_bus_to_hose(0);
+}
+
+unsigned int pci_read_config8(pci_dev_t dev, unsigned where)
+{
+	uint8_t value;
+
+	pci_hose_read_config_byte(get_hose(), dev, where, &value);
+
+	return value;
+}
+
+unsigned int pci_read_config16(pci_dev_t dev, unsigned where)
+{
+	uint16_t value;
+
+	pci_hose_read_config_word(get_hose(), dev, where, &value);
+
+	return value;
+}
+
+unsigned int pci_read_config32(pci_dev_t dev, unsigned where)
+{
+	uint32_t value;
+
+	pci_hose_read_config_dword(get_hose(), dev, where, &value);
+
+	return value;
+}
+
+void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value)
+{
+	pci_hose_write_config_byte(get_hose(), dev, where, value);
+}
+
+void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value)
+{
+	pci_hose_write_config_word(get_hose(), dev, where, value);
+}
+
+void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value)
+{
+	pci_hose_write_config_dword(get_hose(), dev, where, value);
+}