| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <cbmem.h> |
| #include <soc/soc_services.h> |
| |
| static int cbmem_backing_store_ready; |
| |
| void ipq_cbmem_backing_store_ready(void) |
| { |
| cbmem_backing_store_ready = 1; |
| } |
| |
| void *cbmem_top_chipset(void) |
| { |
| /* |
| * In romstage, make sure that cbmem backing store is ready before |
| * returning pointer to cbmem top. Otherwise, it could lead to issues |
| * with components that utilize cbmem in romstage (e.g. vboot_locator |
| * for loading ipq blobs before DRAM is initialized). |
| */ |
| if (cbmem_backing_store_ready == 0) |
| return NULL; |
| |
| return _memlayout_cbmem_top; |
| } |