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-rw-r--r--arch/arm/mach-at91/sama5.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/sama5.c b/arch/arm/mach-at91/sama5.c
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index 0000000000..bf2b5c6a18
--- /dev/null
+++ b/arch/arm/mach-at91/sama5.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Setup code for SAMA5
+ *
+ * Copyright (C) 2013 Atmel,
+ * 2013 Ludovic Desroches <ludovic.desroches@atmel.com>
+ */
+
+#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)
+{
+ of_platform_default_populate(NULL, NULL, NULL);
+ sama5_pm_init();
+}
+
+static const char *const sama5_dt_board_compat[] __initconst = {
+ "atmel,sama5",
+ NULL
+};
+
+DT_MACHINE_START(sama5_dt, "Atmel SAMA5")
+ /* Maintainer: Atmel */
+ .init_machine = sama5_dt_device_init,
+ .dt_compat = sama5_dt_board_compat,
+MACHINE_END
+
+static const char *const sama5_alt_dt_board_compat[] __initconst = {
+ "atmel,sama5d4",
+ NULL
+};
+
+DT_MACHINE_START(sama5_alt_dt, "Atmel SAMA5")
+ /* Maintainer: Atmel */
+ .init_machine = sama5_dt_device_init,
+ .dt_compat = sama5_alt_dt_board_compat,
+ .l2c_aux_mask = ~0UL,
+MACHINE_END
+
+static void __init sama5d2_init(void)
+{
+ of_platform_default_populate(NULL, NULL, NULL);
+ sama5d2_pm_init();
+}
+
+static const char *const sama5d2_compat[] __initconst = {
+ "atmel,sama5d2",
+ NULL
+};
+
+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