Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754438Ab3GJNAC (ORCPT ); Wed, 10 Jul 2013 09:00:02 -0400 Received: from mail-ea0-f171.google.com ([209.85.215.171]:39351 "EHLO mail-ea0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754128Ab3GJM77 (ORCPT ); Wed, 10 Jul 2013 08:59:59 -0400 From: =?UTF-8?q?Pali=20Roh=C3=A1r?= To: linux-kernel@vger.kernel.org, Tony Lindgren , Aaro Koskinen Cc: linux-omap@vger.kernel.org, linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org, Nishanth Menon , Pavel Machek , Peter De Schrijver , Santosh Shilimkar , Ivaylo Dimitrov , =?UTF-8?q?Pali=20Roh=C3=A1r?= Subject: [PATCH v2 1/2] ARM: OMAP: Add secure function omap_smc3() which calling instruction smc #1 Date: Wed, 10 Jul 2013 14:59:04 +0200 Message-Id: <1373461145-9812-2-git-send-email-pali.rohar@gmail.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1373461145-9812-1-git-send-email-pali.rohar@gmail.com> References: <1362044548-5398-1-git-send-email-pali.rohar@gmail.com> <1373461145-9812-1-git-send-email-pali.rohar@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2591 Lines: 72 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 Signed-off-by: Pali Rohár --- arch/arm/mach-omap2/omap-secure.h | 1 + arch/arm/mach-omap2/omap-smc.S | 22 +++++++++++++++++++++- 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h index 0e72917..c4586f4 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 f6441c1..5c02b8d 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 * + * Copyright (C) 2012 Ivaylo Dimitrov + * Copyright (C) 2013 Pali Rohár * * 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 +56,24 @@ 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-r12, lr} + mov r12, r0 @ Copy the secure service ID + mov r6, #0xff @ Indicate new Task call + dsb + dmb + smc #1 @ call PPA service + ldmfd sp!, {r4-r12, pc} +ENDPROC(omap_smc3) + ENTRY(omap_modify_auxcoreboot0) stmfd sp!, {r1-r12, lr} ldr r12, =0x104 -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/