Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751964Ab3IHHng (ORCPT ); Sun, 8 Sep 2013 03:43:36 -0400 Received: from mail-ee0-f46.google.com ([74.125.83.46]:39153 "EHLO mail-ee0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751874Ab3IHHne (ORCPT ); Sun, 8 Sep 2013 03:43:34 -0400 From: Pali =?utf-8?q?Roh=C3=A1r?= To: Dave Martin , tony@atomide.com Subject: [PATCH v4 1/2] ARM: OMAP: Add secure function omap_smc3() which calling instruction smc #1 Date: Sun, 8 Sep 2013 09:43:29 +0200 User-Agent: KMail/1.13.7 (Linux/3.11.0-1+synaptics-generic; KDE/4.11.0; x86_64; ; ) Cc: =?utf-8?q?=D0=98=D0=B2=D0=B0=D0=B9=D0=BB=D0=BE?= =?utf-8?q?_=D0=94=D0=B8=D0=BC=D0=B8=D1=82=D1=80=D0=BE=D0=B2?= , nm@ti.com, linux@arm.linux.org.uk, aaro.koskinen@iki.fi, pdeschrijver@nvidia.com, linux-kernel@vger.kernel.org, santosh.shilimkar@ti.com, pavel@ucw.cz, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Pali =?utf-8?q?Roh=C3=A1r?= References: <20130904124303.GA2369@localhost.localdomain> In-Reply-To: <20130904124303.GA2369@localhost.localdomain> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart5225140.5ByshU8eoQ"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <201309080943.30542@pali> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3102 Lines: 92 --nextPart5225140.5ByshU8eoQ Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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 Signed-off-by: Pali Roh=C3=A1r =2D-- diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-s= ecure.h index 0e72917..c4586f4 100644 =2D-- 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); =20 diff --git a/arch/arm/mach-omap2/omap-smc.S b/arch/arm/mach-omap2/omap-smc.S index f6441c1..fd90125 100644 =2D-- a/arch/arm/mach-omap2/omap-smc.S +++ b/arch/arm/mach-omap2/omap-smc.S @@ -1,9 +1,11 @@ /* =2D * 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 Roh=C3=A1r * * 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) =20 +/** + * 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, =3D0x104 =2D-=20 Pali Roh=C3=A1r pali.rohar@gmail.com --nextPart5225140.5ByshU8eoQ Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEABECAAYFAlIsKqIACgkQi/DJPQPkQ1IxCgCgl+85ws5yUWVq4FR8cTqEgaAw sc4AoJlmLkQpUJgyaTpHgbFrlno8gypk =st2B -----END PGP SIGNATURE----- --nextPart5225140.5ByshU8eoQ-- -- 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/