From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-omap2/omap44xx-smc.S | 57 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 arch/arm/mach-omap2/omap44xx-smc.S (limited to 'arch/arm/mach-omap2/omap44xx-smc.S') diff --git a/arch/arm/mach-omap2/omap44xx-smc.S b/arch/arm/mach-omap2/omap44xx-smc.S new file mode 100644 index 00000000..e69d37d9 --- /dev/null +++ b/arch/arm/mach-omap2/omap44xx-smc.S @@ -0,0 +1,57 @@ +/* + * OMAP44xx secure APIs file. + * + * Copyright (C) 2010 Texas Instruments, Inc. + * Written by Santosh Shilimkar + * + * + * 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 + +/* + * 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 #0 + ldmfd sp!, {r2-r12, pc} +ENDPROC(omap_smc1) + +ENTRY(omap_modify_auxcoreboot0) + stmfd sp!, {r1-r12, lr} + ldr r12, =0x104 + dsb + smc #0 + ldmfd sp!, {r1-r12, pc} +ENDPROC(omap_modify_auxcoreboot0) + +ENTRY(omap_auxcoreboot_addr) + stmfd sp!, {r2-r12, lr} + ldr r12, =0x105 + dsb + smc #0 + ldmfd sp!, {r2-r12, pc} +ENDPROC(omap_auxcoreboot_addr) + +ENTRY(omap_read_auxcoreboot0) + stmfd sp!, {r2-r12, lr} + ldr r12, =0x103 + dsb + smc #0 + mov r0, r0, lsr #9 + ldmfd sp!, {r2-r12, pc} +ENDPROC(omap_read_auxcoreboot0) -- cgit v1.2.3