From ba9456ac9c72a7a5d4d59340aba4259351832521 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Mon, 6 Jun 2011 17:56:49 +0530 Subject: ARM: OMAP: Add Secure HAL and monitor mode API infrastructure. On OMAP secure/emulation devices, certain APIs are exported by secure code. Add an infrastructure so that relevant operations on secure devices can be implemented using it. While at this, rename omap44xx-smc.S to omap-smc.S since the common APIs can be used on other OMAP's too. Signed-off-by: Santosh Shilimkar Acked-by: Jean Pihet Reviewed-by: Kevin Hilman Tested-by: Vishwanath BS Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/omap-secure.c | 52 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 arch/arm/mach-omap2/omap-secure.c (limited to 'arch/arm/mach-omap2/omap-secure.c') diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c new file mode 100644 index 0000000..e5a606e5 --- /dev/null +++ b/arch/arm/mach-omap2/omap-secure.c @@ -0,0 +1,52 @@ +/* + * OMAP Secure API infrastructure. + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Santosh Shilimkar + * + * + * 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 +#include +#include + +#include + +#include + +/** + * 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; +} -- cgit v1.1