arm/mach-highbank/smc.S

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Copied from omap44xx-smc.S Copyright (C) 2010 Texas Instruments, Inc.
0004  * Copyright 2012 Calxeda, Inc.
0005  */
0006
0007 #include <linux/linkage.h>
0008
0009 /*
0010  * This is common routine to manage secure monitor API
0011  * used to modify the PL310 secure registers.
0012  * 'r0' contains the value to be modified and 'r12' contains
0013  * the monitor API number.
0014  * Function signature : void highbank_smc1(u32 fn, u32 arg)
0015  */
0016     .arch armv7-a
0017     .arch_extension sec
0018 ENTRY(highbank_smc1)
0019     stmfd   sp!, {r4-r11, lr}
0020     mov r12, r0
0021     mov     r0, r1
0022     dsb
0023     smc #0
0024     ldmfd   sp!, {r4-r11, pc}
0025 ENDPROC(highbank_smc1)