projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 257b49e3 | 1 | /* |
| 8b1c3426 | 2 | * Copyright (C) 2012-2014 Broadcom Corporation |
| 257b49e3 MM |
3 | * |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License as | |
| 6 | * published by the Free Software Foundation version 2. | |
| 7 | * | |
| 8 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any | |
| 9 | * kind, whether express or implied; without even the implied warranty | |
| 10 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 11 | * GNU General Public License for more details. | |
| 12 | */ | |
| 13 | ||
| 8b1c3426 MM |
14 | #include <linux/of_platform.h> |
| 15 | #include <asm/hardware/cache-l2x0.h> | |
| 257b49e3 | 16 | |
| 8b1c3426 | 17 | #include "bcm_kona_smc.h" |
| 257b49e3 MM |
18 | #include "kona.h" |
| 19 | ||
| 8b1c3426 MM |
20 | void __init kona_l2_cache_init(void) |
| 21 | { | |
| 6c90f108 | 22 | unsigned int result; |
| 8b1c3426 MM |
23 | int ret; |
| 24 | ||
| 25 | if (!IS_ENABLED(CONFIG_CACHE_L2X0)) | |
| 26 | return; | |
| 27 | ||
| 28 | ret = bcm_kona_smc_init(); | |
| 29 | if (ret) { | |
| 30 | pr_info("Secure API not available (%d). Skipping L2 init.\n", | |
| 31 | ret); | |
| 32 | return; | |
| 33 | } | |
| 34 | ||
| 6c90f108 AE |
35 | result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0); |
| 36 | if (result != SEC_ROM_RET_OK) { | |
| 37 | pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n", | |
| 38 | result); | |
| 39 | return; | |
| 40 | } | |
| 8b1c3426 MM |
41 | |
| 42 | /* | |
| 43 | * The aux_val and aux_mask have no effect since L2 cache is already | |
| 44 | * enabled. Pass 0s for aux_val and 1s for aux_mask for default value. | |
| 45 | */ | |
| 46 | ret = l2x0_of_init(0, ~0); | |
| 47 | if (ret) | |
| 48 | pr_err("Couldn't enable L2 cache: %d\n", ret); | |
| 49 | } |