diff options
Diffstat (limited to 'drivers/core/root.c')
| -rw-r--r-- | drivers/core/root.c | 78 |
1 files changed, 64 insertions, 14 deletions
diff --git a/drivers/core/root.c b/drivers/core/root.c index 11e08796b2..393dd98b9d 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -46,18 +46,29 @@ int dm_init(void) } INIT_LIST_HEAD(&DM_UCLASS_ROOT_NON_CONST); - ret = device_bind_by_name(NULL, &root_info, &DM_ROOT_NON_CONST); + ret = device_bind_by_name(NULL, false, &root_info, &DM_ROOT_NON_CONST); if (ret) return ret; + 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(DM_ROOT_NON_CONST); + ret = lists_bind_drivers(DM_ROOT_NON_CONST, pre_reloc_only); if (ret == -ENOENT) { dm_warn("Some drivers were not found\n"); ret = 0; @@ -69,27 +80,66 @@ int dm_scan_platdata(void) } #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); + 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) = { |