| /* Copyright 2013-2016 IBM Corp. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <skiboot.h> |
| #include "rom.h" |
| #include "drivers/romcode.h" |
| #include "drivers/sw_driver.h" |
| |
| static struct rom_driver_ops *rom_driver = NULL; |
| |
| struct rom_driver_ops* rom_init(const struct dt_node *node __unused) |
| { |
| if (rom_driver) |
| goto end; |
| |
| /* ROM drivers supported */ |
| romcode_probe(node); |
| |
| if (!rom_driver) |
| stb_software_probe(node); |
| |
| if (!rom_driver) |
| prlog(PR_NOTICE, "ROM: no rom driver found\n"); |
| end: |
| return rom_driver; |
| } |
| |
| void rom_set_driver(struct rom_driver_ops *driver) |
| { |
| if (rom_driver) { |
| /** |
| * @fwts-label ROMAlreadyRegistered |
| * @fwts-advice ibm,secureboot already registered. Check if |
| * rom_init called twice or the same driver is probed twice |
| */ |
| prlog(PR_WARNING, "ROM: %s driver already registered\n", |
| driver->name); |
| return; |
| } |
| rom_driver = driver; |
| prlog(PR_NOTICE, "ROM: %s driver registered\n", driver->name); |
| } |