| 1 | // SPDX-License-Identifier: GPL-2.0-only |
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| 2 | // Copyright (C) 2012-2014 Broadcom Corporation |
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| 3 | |
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| 4 | |
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| 5 | #include <linux/init.h> |
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| 6 | #include <linux/printk.h> |
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| 7 | #include <asm/hardware/cache-l2x0.h> |
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| 8 | |
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| 9 | #include "bcm_kona_smc.h" |
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| 10 | #include "kona_l2_cache.h" |
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| 11 | |
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| 12 | void __init kona_l2_cache_init(void) |
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| 13 | { |
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| 14 | unsigned int result; |
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| 15 | int ret; |
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| 16 | |
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| 17 | ret = bcm_kona_smc_init(); |
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| 18 | if (ret) { |
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| 19 | pr_info("Secure API not available (%d). Skipping L2 init.\n" , |
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| 20 | ret); |
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| 21 | return; |
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| 22 | } |
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| 23 | |
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| 24 | result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0); |
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| 25 | if (result != SEC_ROM_RET_OK) { |
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| 26 | pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n" , |
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| 27 | result); |
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| 28 | return; |
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| 29 | } |
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| 30 | |
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| 31 | /* |
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| 32 | * The aux_val and aux_mask have no effect since L2 cache is already |
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| 33 | * enabled. Pass 0s for aux_val and 1s for aux_mask for default value. |
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| 34 | */ |
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| 35 | ret = l2x0_of_init(0, ~0); |
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| 36 | if (ret) |
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| 37 | pr_err("Couldn't enable L2 cache: %d\n" , ret); |
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| 38 | } |
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| 39 | |
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