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yaml
---
r: 281861
b: refs/heads/master
c: ba9456a
h: refs/heads/master
i:
  281859: bbcb4f2
v: v3
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Santosh Shilimkar authored and Kevin Hilman committed Dec 8, 2011
1 parent 87004c0 commit 3662b4a
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Showing 5 changed files with 122 additions and 6 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 3c50729b3fa1cd8ca1f347e6caf1081204cf1a7c
refs/heads/master: ba9456ac9c72a7a5d4d59340aba4259351832521
11 changes: 6 additions & 5 deletions trunk/arch/arm/mach-omap2/Makefile
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Expand Up @@ -11,10 +11,11 @@ hwmod-common = omap_hwmod.o \
omap_hwmod_common_data.o
clock-common = clock.o clock_common_data.o \
clkt_dpll.o clkt_clksel.o
secure-common = omap-smc.o omap-secure.o

obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common)
obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common)
obj-$(CONFIG_ARCH_OMAP4) += prm44xx.o $(hwmod-common)
obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) $(secure-common)
obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common)
obj-$(CONFIG_ARCH_OMAP4) += prm44xx.o $(hwmod-common) $(secure-common)

obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o

Expand All @@ -24,11 +25,11 @@ obj-$(CONFIG_TWL4030_CORE) += omap_twl.o
obj-$(CONFIG_SMP) += omap-smp.o omap-headsmp.o
obj-$(CONFIG_LOCAL_TIMERS) += timer-mpu.o
obj-$(CONFIG_HOTPLUG_CPU) += omap-hotplug.o
obj-$(CONFIG_ARCH_OMAP4) += omap44xx-smc.o omap4-common.o
obj-$(CONFIG_ARCH_OMAP4) += omap4-common.o

plus_sec := $(call as-instr,.arch_extension sec,+sec)
AFLAGS_omap-headsmp.o :=-Wa,-march=armv7-a$(plus_sec)
AFLAGS_omap44xx-smc.o :=-Wa,-march=armv7-a$(plus_sec)
AFLAGS_omap-smc.o :=-Wa,-march=armv7-a$(plus_sec)

# Functions loaded to SRAM
obj-$(CONFIG_SOC_OMAP2420) += sram242x.o
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40 changes: 40 additions & 0 deletions trunk/arch/arm/mach-omap2/include/mach/omap-secure.h
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@@ -0,0 +1,40 @@
/*
* omap-secure.h: OMAP Secure infrastructure header.
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Santosh Shilimkar <santosh.shilimkar@ti.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
* published by the Free Software Foundation.
*/
#ifndef OMAP_ARCH_OMAP_SECURE_H
#define OMAP_ARCH_OMAP_SECURE_H

/* Monitor error code */
#define API_HAL_RET_VALUE_NS2S_CONVERSION_ERROR 0xFFFFFFFE
#define API_HAL_RET_VALUE_SERVICE_UNKNWON 0xFFFFFFFF

/* HAL API error codes */
#define API_HAL_RET_VALUE_OK 0x00
#define API_HAL_RET_VALUE_FAIL 0x01

/* Secure HAL API flags */
#define FLAG_START_CRITICAL 0x4
#define FLAG_IRQFIQ_MASK 0x3
#define FLAG_IRQ_ENABLE 0x2
#define FLAG_FIQ_ENABLE 0x1
#define NO_FLAG 0x0


/* Secure low power HAL API index */
#define OMAP4_HAL_SAVESECURERAM_INDEX 0x1a
#define OMAP4_HAL_SAVEHW_INDEX 0x1b
#define OMAP4_HAL_SAVEALL_INDEX 0x1c
#define OMAP4_HAL_SAVEGIC_INDEX 0x1d

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);

#endif /* OMAP_ARCH_OMAP_SECURE_H */
52 changes: 52 additions & 0 deletions trunk/arch/arm/mach-omap2/omap-secure.c
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@@ -0,0 +1,52 @@
/*
* OMAP Secure API infrastructure.
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Santosh Shilimkar <santosh.shilimkar@ti.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
* published by the Free Software Foundation.
*/

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>

#include <asm/cacheflush.h>

#include <mach/omap-secure.h>

/**
* omap_sec_dispatcher: Routine to dispatch low power secure
* service routines
* @idx: The HAL API index
* @flag: The flag indicating criticality of operation
* @nargs: Number of valid arguments out of four.
* @arg1, arg2, arg3 args4: Parameters passed to secure API
*
* Return the non-zero error value on failure.
*/
u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2,
u32 arg3, u32 arg4)
{
u32 ret;
u32 param[5];

param[0] = nargs;
param[1] = arg1;
param[2] = arg2;
param[3] = arg3;
param[4] = arg4;

/*
* Secure API needs physical address
* pointer for the parameters
*/
flush_cache_all();
outer_clean_range(__pa(param), __pa(param + 5));
ret = omap_smc2(idx, flag, __pa(param));

return ret;
}
Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,29 @@ ENTRY(omap_smc1)
ldmfd sp!, {r2-r12, pc}
ENDPROC(omap_smc1)

/**
* u32 omap_smc2(u32 id, u32 falg, u32 pargs)
* Low level common routine for secure HAL and PPA APIs.
* @id: Application ID of HAL APIs
* @flag: Flag to indicate the criticality of operation
* @pargs: Physical address of parameter list starting
* with number of parametrs
*/
ENTRY(omap_smc2)
stmfd sp!, {r4-r12, lr}
mov r3, r2
mov r2, r1
mov r1, #0x0 @ Process ID
mov r6, #0xff
mov r12, #0x00 @ Secure Service ID
mov r7, #0
mcr p15, 0, r7, c7, c5, 6
dsb
dmb
smc #0
ldmfd sp!, {r4-r12, pc}
ENDPROC(omap_smc2)

ENTRY(omap_modify_auxcoreboot0)
stmfd sp!, {r1-r12, lr}
ldr r12, =0x104
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