1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/sec-common.c b/arch/arm/cpu/armv7/omap-common/sec-common.c
new file mode 100644
index 0000000..4ec736f
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/sec-common.c
@@ -0,0 +1,51 @@
+/*
+ *
+ * Common security related functions for OMAP devices
+ *
+ * (C) Copyright 2016
+ * Texas Instruments, <www.ti.com>
+ *
+ * Daniel Allred <d-allred@ti.com>
+ * Andreas Dannenberg <dannenberg@ti.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <stdarg.h>
+
+#include <asm/arch/sys_proto.h>
+#include <asm/omap_common.h>
+#include <asm/omap_sec_common.h>
+
+static uint32_t secure_rom_call_args[5] __aligned(ARCH_DMA_MINALIGN);
+
+u32 secure_rom_call(u32 service, u32 proc_id, u32 flag, ...)
+{
+	int i;
+	u32 num_args;
+	va_list ap;
+
+	va_start(ap, flag);
+
+	num_args = va_arg(ap, u32);
+
+	if (num_args > 4)
+		return 1;
+
+	/* Copy args to aligned args structure */
+	for (i = 0; i < num_args; i++)
+		secure_rom_call_args[i + 1] = va_arg(ap, u32);
+
+	secure_rom_call_args[0] = num_args;
+
+	va_end(ap);
+
+	/* if data cache is enabled, flush the aligned args structure */
+	flush_dcache_range(
+		(unsigned int)&secure_rom_call_args[0],
+		(unsigned int)&secure_rom_call_args[0] +
+		roundup(sizeof(secure_rom_call_args), ARCH_DMA_MINALIGN));
+
+	return omap_smc_sec(service, proc_id, flag, secure_rom_call_args);
+}