diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/board-4430sdp.c | 26 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap44xx-smc.S | 32 |
3 files changed, 36 insertions, 25 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 2069fb33baa..4b9fc57770d 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -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 diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 180ac112e52..b88f28c5814 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -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 diff --git a/arch/arm/mach-omap2/omap44xx-smc.S b/arch/arm/mach-omap2/omap44xx-smc.S new file mode 100644 index 00000000000..89bb2b14147 --- /dev/null +++ b/arch/arm/mach-omap2/omap44xx-smc.S @@ -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) |