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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/arm/mach-bcm/kona_l2_cache.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-bcm/kona_l2_cache.c')
-rw-r--r-- | arch/arm/mach-bcm/kona_l2_cache.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm/kona_l2_cache.c b/arch/arm/mach-bcm/kona_l2_cache.c new file mode 100644 index 0000000000..457c66e1d7 --- /dev/null +++ b/arch/arm/mach-bcm/kona_l2_cache.c @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright (C) 2012-2014 Broadcom Corporation + + +#include <linux/init.h> +#include <linux/printk.h> +#include <asm/hardware/cache-l2x0.h> + +#include "bcm_kona_smc.h" +#include "kona_l2_cache.h" + +void __init kona_l2_cache_init(void) +{ + unsigned int result; + int ret; + + ret = bcm_kona_smc_init(); + if (ret) { + pr_info("Secure API not available (%d). Skipping L2 init.\n", + ret); + return; + } + + result = bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0); + if (result != SEC_ROM_RET_OK) { + pr_err("Secure Monitor call failed (%u)! Skipping L2 init.\n", + result); + return; + } + + /* + * The aux_val and aux_mask have no effect since L2 cache is already + * enabled. Pass 0s for aux_val and 1s for aux_mask for default value. + */ + ret = l2x0_of_init(0, ~0); + if (ret) + pr_err("Couldn't enable L2 cache: %d\n", ret); +} |