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| author | Pali Rohár <pali.rohar@gmail.com> | 2013-09-08 09:43:29 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2013-10-08 20:55:32 +0200 |
| commit | a33f1788192d13165594f8ec6975dbae34502ec9 (patch) | |
| tree | 6894ffb5054b9fb8583d0a830758c6ee0b410a39 /arch | |
| parent | Linux 3.12-rc4 (diff) | |
| download | linux-a33f1788192d13165594f8ec6975dbae34502ec9.tar.xz linux-a33f1788192d13165594f8ec6975dbae34502ec9.zip | |
ARM: OMAP3: Add secure function omap_smc3() which calling instruction smc #1
Here is new version (v4) of omap secure part patch:
Other secure functions omap_smc1() and omap_smc2() calling instruction smc #0
but Nokia RX-51 board needs to call smc #1 for PPA access.
Signed-off-by: Ivaylo Dimitrov <freemangordon@abv.bg>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/omap-secure.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap-smc.S | 21 |
2 files changed, 21 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h index 0e729170c46b..c4586f42ea98 100644 --- a/arch/arm/mach-omap2/omap-secure.h +++ b/arch/arm/mach-omap2/omap-secure.h @@ -51,6 +51,7 @@ extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2, u32 arg3, u32 arg4); extern u32 omap_smc2(u32 id, u32 falg, u32 pargs); +extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs); extern phys_addr_t omap_secure_ram_mempool_base(void); extern int omap_secure_ram_reserve_memblock(void); diff --git a/arch/arm/mach-omap2/omap-smc.S b/arch/arm/mach-omap2/omap-smc.S index f6441c13cd8c..fd90125bffc7 100644 --- a/arch/arm/mach-omap2/omap-smc.S +++ b/arch/arm/mach-omap2/omap-smc.S @@ -1,9 +1,11 @@ /* - * OMAP44xx secure APIs file. + * OMAP34xx and OMAP44xx secure APIs file. * * Copyright (C) 2010 Texas Instruments, Inc. * Written by Santosh Shilimkar <santosh.shilimkar@ti.com> * + * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg> + * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.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 @@ -54,6 +56,23 @@ ENTRY(omap_smc2) ldmfd sp!, {r4-r12, pc} ENDPROC(omap_smc2) +/** + * u32 omap_smc3(u32 service_id, u32 process_id, u32 flag, u32 pargs) + * Low level common routine for secure HAL and PPA APIs via smc #1 + * r0 - @service_id: Secure Service ID + * r1 - @process_id: Process ID + * r2 - @flag: Flag to indicate the criticality of operation + * r3 - @pargs: Physical address of parameter list + */ +ENTRY(omap_smc3) + stmfd sp!, {r4-r11, lr} + mov r12, r0 @ Copy the secure service ID + mov r6, #0xff @ Indicate new Task call + dsb @ Memory Barrier (not sure if needed, copied from omap_smc2) + smc #1 @ Call PPA service + ldmfd sp!, {r4-r11, pc} +ENDPROC(omap_smc3) + ENTRY(omap_modify_auxcoreboot0) stmfd sp!, {r1-r12, lr} ldr r12, =0x104 |