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omap4: Fix build break by moving omap_smc1 into a separate .S 

This patch moves omap_smc1 function to a seperate omap44xx-smc.S file
and sets compile flags as -Wa,-march=armv7-a.

This fix was suggested by Tony Lindgren <tony@atomide.com>

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[tony@atomide.com: otherwise multi-omap build with V6 and V7 breaks]
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Santosh Shilimkar 2010-03-11 07:33:46 +00:00 committed by Tony Lindgren
parent 6f69a1815a
commit d660f9a26e
3 changed files with 36 additions and 25 deletions
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3
arch/arm/mach-omap2/Makefile
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@ -22,6 +22,9 @@ obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
# SMP support ONLY available for OMAP4
obj-$(CONFIG_SMP) += omap-smp.o omap-headsmp.o
obj-$(CONFIG_LOCAL_TIMERS) += timer-mpu.o
obj-$(CONFIG_ARCH_OMAP4) += omap44xx-smc.o
AFLAGS_omap44xx-smc.o :=-Wa,-march=armv7-a
# Functions loaded to SRAM
obj-$(CONFIG_ARCH_OMAP2420) += sram242x.o

26
arch/arm/mach-omap2/board-4430sdp.c
View File

@ -50,33 +50,9 @@ static struct omap_board_config_kernel sdp4430_config[] __initdata = {
};
#ifdef CONFIG_CACHE_L2X0
noinline void omap_smc1(u32 fn, u32 arg)
{
register u32 r12 asm("r12") = fn;
register u32 r0 asm("r0") = arg;
/* This is common routine cache secure monitor API used to
* modify the PL310 secure registers.
* r0 contains the value to be modified and "r12" contains
* the monitor API number. It uses few CPU registers
* internally and hence they need be backed up including
* link register "lr".
* Explicitly save r11 and r12 the compiler generated code
* won't save it.
*/
asm volatile(
"stmfd r13!, {r11,r12}\n"
"dsb\n"
"smc\n"
"ldmfd r13!, {r11,r12}\n"
: "+r" (r0), "+r" (r12)
:
: "r4", "r5", "r10", "lr", "cc");
}
EXPORT_SYMBOL(omap_smc1);
static int __init omap_l2_cache_init(void)
{
extern void omap_smc1(u32 fn, u32 arg);
void __iomem *l2cache_base;
/* To avoid code running on other OMAPs in

32
arch/arm/mach-omap2/omap44xx-smc.S Normal file
View File

@ -0,0 +1,32 @@
/*
* OMAP44xx secure APIs file.
*
* Copyright (C) 2010 Texas Instruments, Inc.
* Written by 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/linkage.h>
/*
* This is common routine to manage secure monitor API
* used to modify the PL310 secure registers.
* 'r0' contains the value to be modified and 'r12' contains
* the monitor API number. It uses few CPU registers
* internally and hence they need be backed up including
* link register "lr".
* Function signature : void omap_smc1(u32 fn, u32 arg)
*/
ENTRY(omap_smc1)
stmfd sp!, {r2-r12, lr}
mov r12, r0
mov r0, r1
dsb
smc
ldmfd sp!, {r2-r12, pc}
END(omap_smc1)