dm: pci: Add a uclass for PCI

Add a uclass for PCI controllers and a generic one for PCI devices. Adjust
the 'pci' command and the existing PCI support to work with this new uclass.
Keep most of the compatibility code in a separate file so that it can be
removed one day.

TODO: Add more header file comments to the new parts of pci.h

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 43 insertions, 0 deletions

diff --git a/drivers/pci/pci_compat.c b/drivers/pci/pci_compat.c
new file mode 100644
index 0000000000..d6938c198f
--- /dev/null
+++ b/drivers/pci/pci_compat.c
@@ -0,0 +1,43 @@
+/*
+ * Compatibility functions for pre-driver-model code
+ *
+ * Copyright (C) 2014 Google, Inc
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#define DEBUG
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <malloc.h>
+#include <pci.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
+
+#define PCI_HOSE_OP(rw, name, size, type)				\
+int pci_hose_##rw##_config_##name(struct pci_controller *hose,		\
+				  pci_dev_t dev,			\
+				  int offset, type value)		\
+{									\
+	return pci_##rw##_config##size(dev, offset, value);		\
+}
+
+PCI_HOSE_OP(read, byte, 8, u8 *)
+PCI_HOSE_OP(read, word, 16, u16 *)
+PCI_HOSE_OP(read, dword, 32, u32 *)
+PCI_HOSE_OP(write, byte, 8, u8)
+PCI_HOSE_OP(write, word, 16, u16)
+PCI_HOSE_OP(write, dword, 32, u32)
+
+pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
+{
+	struct pci_child_platdata *pplat;
+	struct udevice *bus, *dev;
+
+	if (pci_find_device_id(ids, index, &dev))
+		return -1;
+	bus = dev->parent;
+	pplat = dev_get_parent_platdata(dev);
+
+	return PCI_ADD_BUS(bus->seq, pplat->devfn);
+}