#include <common.h>
#include <errno.h>
#include <malloc.h>
+#include <libfdt.h>
#include <dm/device.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
#include <dm/platdata.h>
+#include <dm/root.h>
#include <dm/uclass.h>
#include <dm/util.h>
#include <linux/list.h>
.name = "root_driver",
};
-struct device *dm_root(void)
+struct udevice *dm_root(void)
{
if (!gd->dm_root) {
dm_warn("Virtual root driver does not exist!\n");
dm_warn("Virtual root driver already exists!\n");
return -EINVAL;
}
- INIT_LIST_HEAD(&gd->uclass_root);
+ INIT_LIST_HEAD(&DM_UCLASS_ROOT_NON_CONST);
- ret = device_bind_by_name(NULL, &root_info, &gd->dm_root);
+ ret = device_bind_by_name(NULL, false, &root_info, &DM_ROOT_NON_CONST);
if (ret)
return ret;
+#ifdef CONFIG_OF_CONTROL
+ DM_ROOT_NON_CONST->of_offset = 0;
+#endif
+ ret = device_probe(DM_ROOT_NON_CONST);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+int dm_uninit(void)
+{
+ device_remove(dm_root());
+ device_unbind(dm_root());
return 0;
}
-int dm_scan_platdata(void)
+int dm_scan_platdata(bool pre_reloc_only)
{
int ret;
- ret = lists_bind_drivers(gd->dm_root);
+ ret = lists_bind_drivers(DM_ROOT_NON_CONST, pre_reloc_only);
if (ret == -ENOENT) {
dm_warn("Some drivers were not found\n");
ret = 0;
}
- if (ret)
- return ret;
- return 0;
+ return ret;
}
#ifdef CONFIG_OF_CONTROL
-int dm_scan_fdt(const void *blob)
+int dm_scan_fdt_node(struct udevice *parent, const void *blob, int offset,
+ bool pre_reloc_only)
{
- int offset = 0;
int ret = 0, err;
- int depth = 0;
- do {
- offset = fdt_next_node(blob, offset, &depth);
- if (offset > 0 && depth == 1) {
- err = lists_bind_fdt(gd->dm_root, blob, offset);
- if (err && !ret)
- ret = err;
- }
- } while (offset > 0);
+ for (offset = fdt_first_subnode(blob, offset);
+ offset > 0;
+ offset = fdt_next_subnode(blob, offset)) {
+ if (pre_reloc_only &&
+ !fdt_getprop(blob, offset, "u-boot,dm-pre-reloc", NULL))
+ continue;
+ err = lists_bind_fdt(parent, blob, offset, NULL);
+ if (err && !ret)
+ ret = err;
+ }
if (ret)
dm_warn("Some drivers failed to bind\n");
return ret;
}
+
+int dm_scan_fdt(const void *blob, bool pre_reloc_only)
+{
+ return dm_scan_fdt_node(gd->dm_root, blob, 0, pre_reloc_only);
+}
+#endif
+
+__weak int dm_scan_other(bool pre_reloc_only)
+{
+ return 0;
+}
+
+int dm_init_and_scan(bool pre_reloc_only)
+{
+ int ret;
+
+ ret = dm_init();
+ if (ret) {
+ debug("dm_init() failed: %d\n", ret);
+ return ret;
+ }
+ ret = dm_scan_platdata(pre_reloc_only);
+ if (ret) {
+ debug("dm_scan_platdata() failed: %d\n", ret);
+ return ret;
+ }
+#ifdef CONFIG_OF_CONTROL
+ ret = dm_scan_fdt(gd->fdt_blob, pre_reloc_only);
+ if (ret) {
+ debug("dm_scan_fdt() failed: %d\n", ret);
+ return ret;
+ }
#endif
+ ret = dm_scan_other(pre_reloc_only);
+ if (ret)
+ return ret;
+
+ return 0;
+}
/* This is the root driver - all drivers are children of this */
U_BOOT_DRIVER(root_driver) = {