Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / drivers / core / lists.c

diff --git a/qemu/roms/u-boot/drivers/core/lists.c b/qemu/roms/u-boot/drivers/core/lists.c
new file mode 100644 (file)
index 0000000..4f2c126
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/core/lists.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * (C) Copyright 2012
+ * Marek Vasut <marex@denx.de>
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <dm/device.h>
+#include <dm/device-internal.h>
+#include <dm/platdata.h>
+#include <dm/uclass.h>
+#include <dm/util.h>
+#include <linux/compiler.h>
+
+struct driver *lists_driver_lookup_name(const char *name)
+{
+       struct driver *drv =
+               ll_entry_start(struct driver, driver);
+       const int n_ents = ll_entry_count(struct driver, driver);
+       struct driver *entry;
+       int len;
+
+       if (!drv || !n_ents)
+               return NULL;
+
+       len = strlen(name);
+
+       for (entry = drv; entry != drv + n_ents; entry++) {
+               if (strncmp(name, entry->name, len))
+                       continue;
+
+               /* Full match */
+               if (len == strlen(entry->name))
+                       return entry;
+       }
+
+       /* Not found */
+       return NULL;
+}
+
+struct uclass_driver *lists_uclass_lookup(enum uclass_id id)
+{
+       struct uclass_driver *uclass =
+               ll_entry_start(struct uclass_driver, uclass);
+       const int n_ents = ll_entry_count(struct uclass_driver, uclass);
+       struct uclass_driver *entry;
+
+       if ((id == UCLASS_INVALID) || !uclass)
+               return NULL;
+
+       for (entry = uclass; entry != uclass + n_ents; entry++) {
+               if (entry->id == id)
+                       return entry;
+       }
+
+       return NULL;
+}
+
+int lists_bind_drivers(struct device *parent)
+{
+       struct driver_info *info =
+               ll_entry_start(struct driver_info, driver_info);
+       const int n_ents = ll_entry_count(struct driver_info, driver_info);
+       struct driver_info *entry;
+       struct device *dev;
+       int result = 0;
+       int ret;
+
+       for (entry = info; entry != info + n_ents; entry++) {
+               ret = device_bind_by_name(parent, entry, &dev);
+               if (ret) {
+                       dm_warn("No match for driver '%s'\n", entry->name);
+                       if (!result || ret != -ENOENT)
+                               result = ret;
+               }
+       }
+
+       return result;
+}
+
+#ifdef CONFIG_OF_CONTROL
+/**
+ * driver_check_compatible() - Check if a driver is compatible with this node
+ *
+ * @param blob:                Device tree pointer
+ * @param offset:      Offset of node in device tree
+ * @param of_matchL    List of compatible strings to match
+ * @return 0 if there is a match, -ENOENT if no match, -ENODEV if the node
+ * does not have a compatible string, other error <0 if there is a device
+ * tree error
+ */
+static int driver_check_compatible(const void *blob, int offset,
+                                  const struct device_id *of_match)
+{
+       int ret;
+
+       if (!of_match)
+               return -ENOENT;
+
+       while (of_match->compatible) {
+               ret = fdt_node_check_compatible(blob, offset,
+                                               of_match->compatible);
+               if (!ret)
+                       return 0;
+               else if (ret == -FDT_ERR_NOTFOUND)
+                       return -ENODEV;
+               else if (ret < 0)
+                       return -EINVAL;
+               of_match++;
+       }
+
+       return -ENOENT;
+}
+
+int lists_bind_fdt(struct device *parent, const void *blob, int offset)
+{
+       struct driver *driver = ll_entry_start(struct driver, driver);
+       const int n_ents = ll_entry_count(struct driver, driver);
+       struct driver *entry;
+       struct device *dev;
+       const char *name;
+       int result = 0;
+       int ret;
+
+       dm_dbg("bind node %s\n", fdt_get_name(blob, offset, NULL));
+       for (entry = driver; entry != driver + n_ents; entry++) {
+               ret = driver_check_compatible(blob, offset, entry->of_match);
+               if (ret == -ENOENT) {
+                       continue;
+               } else if (ret == -ENODEV) {
+                       break;
+               } else if (ret) {
+                       dm_warn("Device tree error at offset %d\n", offset);
+                       if (!result || ret != -ENOENT)
+                               result = ret;
+                       break;
+               }
+
+               name = fdt_get_name(blob, offset, NULL);
+               dm_dbg("   - found match at '%s'\n", entry->name);
+               ret = device_bind(parent, entry, name, NULL, offset, &dev);
+               if (ret) {
+                       dm_warn("No match for driver '%s'\n", entry->name);
+                       if (!result || ret != -ENOENT)
+                               result = ret;
+               }
+       }
+
+       return result;
+}
+#endif