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-rw-r--r--arch/arm/mach-omap2/omap-secure.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c
new file mode 100644
index 00000000000..d8f8ef40290
--- /dev/null
+++ b/arch/arm/mach-omap2/omap-secure.c
@@ -0,0 +1,72 @@
+/*
+ * OMAP Secure API infrastructure.
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ *
+ * This program is free software,you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/memblock.h>
+
+#include <asm/cacheflush.h>
+#include <asm/memblock.h>
+
+#include <mach/omap-secure.h>
+
+static phys_addr_t omap_secure_memblock_base;
+
+/**
+ * omap_sec_dispatcher: Routine to dispatch low power secure
+ * service routines
+ * @idx: The HAL API index
+ * @flag: The flag indicating criticality of operation
+ * @nargs: Number of valid arguments out of four.
+ * @arg1, arg2, arg3 args4: Parameters passed to secure API
+ *
+ * Return the non-zero error value on failure.
+ */
+u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2,
+ u32 arg3, u32 arg4)
+{
+ u32 ret;
+ u32 param[5];
+
+ param[0] = nargs;
+ param[1] = arg1;
+ param[2] = arg2;
+ param[3] = arg3;
+ param[4] = arg4;
+
+ /*
+ * Secure API needs physical address
+ * pointer for the parameters
+ */
+ flush_cache_all();
+ outer_clean_range(__pa(param), __pa(param + 5));
+ ret = omap_smc2(idx, flag, __pa(param));
+
+ return ret;
+}
+
+/* Allocate the memory to save secure ram */
+int __init omap_secure_ram_reserve_memblock(void)
+{
+ u32 size = OMAP_SECURE_RAM_STORAGE;
+
+ size = ALIGN(size, SZ_1M);
+ omap_secure_memblock_base = arm_memblock_steal(size, SZ_1M);
+
+ return 0;
+}
+
+phys_addr_t omap_secure_ram_mempool_base(void)
+{
+ return omap_secure_memblock_base;
+}