| Santosh Shilimkar | ba9456a | 2011-06-06 17:56:49 +0530 | [diff] [blame^] | 1 | /* |
| 2 | * OMAP Secure API infrastructure. |
| 3 | * |
| 4 | * Copyright (C) 2011 Texas Instruments, Inc. |
| 5 | * Santosh Shilimkar <santosh.shilimkar@ti.com> |
| 6 | * |
| 7 | * |
| 8 | * This program is free software,you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/kernel.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/io.h> |
| 16 | |
| 17 | #include <asm/cacheflush.h> |
| 18 | |
| 19 | #include <mach/omap-secure.h> |
| 20 | |
| 21 | /** |
| 22 | * omap_sec_dispatcher: Routine to dispatch low power secure |
| 23 | * service routines |
| 24 | * @idx: The HAL API index |
| 25 | * @flag: The flag indicating criticality of operation |
| 26 | * @nargs: Number of valid arguments out of four. |
| 27 | * @arg1, arg2, arg3 args4: Parameters passed to secure API |
| 28 | * |
| 29 | * Return the non-zero error value on failure. |
| 30 | */ |
| 31 | u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2, |
| 32 | u32 arg3, u32 arg4) |
| 33 | { |
| 34 | u32 ret; |
| 35 | u32 param[5]; |
| 36 | |
| 37 | param[0] = nargs; |
| 38 | param[1] = arg1; |
| 39 | param[2] = arg2; |
| 40 | param[3] = arg3; |
| 41 | param[4] = arg4; |
| 42 | |
| 43 | /* |
| 44 | * Secure API needs physical address |
| 45 | * pointer for the parameters |
| 46 | */ |
| 47 | flush_cache_all(); |
| 48 | outer_clean_range(__pa(param), __pa(param + 5)); |
| 49 | ret = omap_smc2(idx, flag, __pa(param)); |
| 50 | |
| 51 | return ret; |
| 52 | } |