diff options
Diffstat (limited to 'arch/arm/mach-at91/sama5.c')
| -rw-r--r-- | arch/arm/mach-at91/sama5.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/arm/mach-at91/sama5.c b/arch/arm/mach-at91/sama5.c index 3d0bf95a56ae..bf2b5c6a18c6 100644 --- a/arch/arm/mach-at91/sama5.c +++ b/arch/arm/mach-at91/sama5.c @@ -1,20 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Setup code for SAMA5 * * Copyright (C) 2013 Atmel, * 2013 Ludovic Desroches <ludovic.desroches@atmel.com> - * - * Licensed under GPLv2 or later. */ #include <linux/of.h> #include <linux/of_platform.h> +#include <asm/hardware/cache-l2x0.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> +#include <asm/outercache.h> #include <asm/system_misc.h> #include "generic.h" +#include "sam_secure.h" + +static void sama5_l2c310_write_sec(unsigned long val, unsigned reg) +{ + /* OP-TEE configures the L2 cache and does not allow modifying it yet */ +} + +static void __init sama5_secure_cache_init(void) +{ + sam_secure_init(); + if (IS_ENABLED(CONFIG_OUTER_CACHE) && sam_linux_is_optee_available()) + outer_cache.write_sec = sama5_l2c310_write_sec; +} static void __init sama5_dt_device_init(void) { @@ -59,6 +73,7 @@ static const char *const sama5d2_compat[] __initconst = { DT_MACHINE_START(sama5d2, "Atmel SAMA5") /* Maintainer: Atmel */ .init_machine = sama5d2_init, + .init_early = sama5_secure_cache_init, .dt_compat = sama5d2_compat, .l2c_aux_mask = ~0UL, MACHINE_END |