On 08/09/13 09:43, Pali Rohár wrote:
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@xxxxxx>
Signed-off-by: Pali Rohár<pali.rohar@xxxxxxxxx>
---
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..fd90125 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@xxxxxx>
*
+ * Copyright (C) 2012 Ivaylo Dimitrov<freemangordon@xxxxxx>
+ * Copyright (C) 2013 Pali Rohár<pali.rohar@xxxxxxxxx>
*
* 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
I think you should save r12 in the call.
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
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