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[88.212.34.237]) by mx.google.com with ESMTPSA id o5sm59830172eef.5.2013.07.10.05.59.56 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 10 Jul 2013 05:59:57 -0700 (PDT) From: =?UTF-8?q?Pali=20Roh=C3=A1r?= To: linux-kernel@vger.kernel.org, Tony Lindgren , Aaro Koskinen 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130710_090022_686222_21C23CC7 X-CRM114-Status: GOOD ( 12.96 ) X-Spam-Score: -2.0 (--) Cc: Nishanth Menon , linux@arm.linux.org.uk, Peter De Schrijver , Ivaylo Dimitrov , Santosh Shilimkar , Pavel Machek , =?UTF-8?q?Pali=20Roh=C3=A1r?= , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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