projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 4549e789 | 1 | // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause |
| 2514c2d0 PD |
2 | /* |
| 3 | * Copyright (C) 2018, STMicroelectronics - All Rights Reserved | |
| 2514c2d0 PD |
4 | */ |
| 5 | ||
| 6 | #include <common.h> | |
| 7 | #include <dm.h> | |
| 4d72caa5 SG |
8 | #include <image.h> |
| 9 | #include <init.h> | |
| 4a1b975d | 10 | #include <lmb.h> |
| f7ae49fc | 11 | #include <log.h> |
| 2514c2d0 PD |
12 | #include <ram.h> |
| 13 | ||
| 14 | DECLARE_GLOBAL_DATA_PTR; | |
| 15 | ||
| 16 | int dram_init(void) | |
| 17 | { | |
| 18 | struct ram_info ram; | |
| 19 | struct udevice *dev; | |
| 20 | int ret; | |
| 21 | ||
| 22 | ret = uclass_get_device(UCLASS_RAM, 0, &dev); | |
| 23 | if (ret) { | |
| 24 | debug("RAM init failed: %d\n", ret); | |
| 25 | return ret; | |
| 26 | } | |
| 27 | ret = ram_get_info(dev, &ram); | |
| 28 | if (ret) { | |
| 29 | debug("Cannot get RAM size: %d\n", ret); | |
| 30 | return ret; | |
| 31 | } | |
| 32 | debug("RAM init base=%lx, size=%x\n", ram.base, ram.size); | |
| 33 | ||
| 34 | gd->ram_size = ram.size; | |
| 35 | ||
| 36 | return 0; | |
| 37 | } | |
| 4a1b975d PD |
38 | |
| 39 | ulong board_get_usable_ram_top(ulong total_size) | |
| 40 | { | |
| 41 | phys_addr_t reg; | |
| 42 | struct lmb lmb; | |
| 43 | ||
| 44 | /* found enough not-reserved memory to relocated U-Boot */ | |
| 45 | lmb_init(&lmb); | |
| 46 | lmb_add(&lmb, gd->ram_base, gd->ram_size); | |
| 47 | boot_fdt_add_mem_rsv_regions(&lmb, (void *)gd->fdt_blob); | |
| 48 | reg = lmb_alloc(&lmb, CONFIG_SYS_MALLOC_LEN + total_size, SZ_4K); | |
| 49 | ||
| 50 | if (reg) | |
| 51 | return ALIGN(reg + CONFIG_SYS_MALLOC_LEN + total_size, SZ_4K); | |
| 52 | ||
| 53 | return gd->ram_top; | |
| 54 | } |