diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/mach-bcm/kona_l2_cache.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
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 000000000..457c66e1d --- /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); +} |