1*ba9456acSSantosh Shilimkar/* 2*ba9456acSSantosh Shilimkar * OMAP44xx secure APIs file. 3*ba9456acSSantosh Shilimkar * 4*ba9456acSSantosh Shilimkar * Copyright (C) 2010 Texas Instruments, Inc. 5*ba9456acSSantosh Shilimkar * Written by Santosh Shilimkar <santosh.shilimkar@ti.com> 6*ba9456acSSantosh Shilimkar * 7*ba9456acSSantosh Shilimkar * 8*ba9456acSSantosh Shilimkar * This program is free software,you can redistribute it and/or modify 9*ba9456acSSantosh Shilimkar * it under the terms of the GNU General Public License version 2 as 10*ba9456acSSantosh Shilimkar * published by the Free Software Foundation. 11*ba9456acSSantosh Shilimkar */ 12*ba9456acSSantosh Shilimkar 13*ba9456acSSantosh Shilimkar#include <linux/linkage.h> 14*ba9456acSSantosh Shilimkar 15*ba9456acSSantosh Shilimkar/* 16*ba9456acSSantosh Shilimkar * This is common routine to manage secure monitor API 17*ba9456acSSantosh Shilimkar * used to modify the PL310 secure registers. 18*ba9456acSSantosh Shilimkar * 'r0' contains the value to be modified and 'r12' contains 19*ba9456acSSantosh Shilimkar * the monitor API number. It uses few CPU registers 20*ba9456acSSantosh Shilimkar * internally and hence they need be backed up including 21*ba9456acSSantosh Shilimkar * link register "lr". 22*ba9456acSSantosh Shilimkar * Function signature : void omap_smc1(u32 fn, u32 arg) 23*ba9456acSSantosh Shilimkar */ 24*ba9456acSSantosh Shilimkar 25*ba9456acSSantosh ShilimkarENTRY(omap_smc1) 26*ba9456acSSantosh Shilimkar stmfd sp!, {r2-r12, lr} 27*ba9456acSSantosh Shilimkar mov r12, r0 28*ba9456acSSantosh Shilimkar mov r0, r1 29*ba9456acSSantosh Shilimkar dsb 30*ba9456acSSantosh Shilimkar smc #0 31*ba9456acSSantosh Shilimkar ldmfd sp!, {r2-r12, pc} 32*ba9456acSSantosh ShilimkarENDPROC(omap_smc1) 33*ba9456acSSantosh Shilimkar 34*ba9456acSSantosh Shilimkar/** 35*ba9456acSSantosh Shilimkar * u32 omap_smc2(u32 id, u32 falg, u32 pargs) 36*ba9456acSSantosh Shilimkar * Low level common routine for secure HAL and PPA APIs. 37*ba9456acSSantosh Shilimkar * @id: Application ID of HAL APIs 38*ba9456acSSantosh Shilimkar * @flag: Flag to indicate the criticality of operation 39*ba9456acSSantosh Shilimkar * @pargs: Physical address of parameter list starting 40*ba9456acSSantosh Shilimkar * with number of parametrs 41*ba9456acSSantosh Shilimkar */ 42*ba9456acSSantosh ShilimkarENTRY(omap_smc2) 43*ba9456acSSantosh Shilimkar stmfd sp!, {r4-r12, lr} 44*ba9456acSSantosh Shilimkar mov r3, r2 45*ba9456acSSantosh Shilimkar mov r2, r1 46*ba9456acSSantosh Shilimkar mov r1, #0x0 @ Process ID 47*ba9456acSSantosh Shilimkar mov r6, #0xff 48*ba9456acSSantosh Shilimkar mov r12, #0x00 @ Secure Service ID 49*ba9456acSSantosh Shilimkar mov r7, #0 50*ba9456acSSantosh Shilimkar mcr p15, 0, r7, c7, c5, 6 51*ba9456acSSantosh Shilimkar dsb 52*ba9456acSSantosh Shilimkar dmb 53*ba9456acSSantosh Shilimkar smc #0 54*ba9456acSSantosh Shilimkar ldmfd sp!, {r4-r12, pc} 55*ba9456acSSantosh ShilimkarENDPROC(omap_smc2) 56*ba9456acSSantosh Shilimkar 57*ba9456acSSantosh ShilimkarENTRY(omap_modify_auxcoreboot0) 58*ba9456acSSantosh Shilimkar stmfd sp!, {r1-r12, lr} 59*ba9456acSSantosh Shilimkar ldr r12, =0x104 60*ba9456acSSantosh Shilimkar dsb 61*ba9456acSSantosh Shilimkar smc #0 62*ba9456acSSantosh Shilimkar ldmfd sp!, {r1-r12, pc} 63*ba9456acSSantosh ShilimkarENDPROC(omap_modify_auxcoreboot0) 64*ba9456acSSantosh Shilimkar 65*ba9456acSSantosh ShilimkarENTRY(omap_auxcoreboot_addr) 66*ba9456acSSantosh Shilimkar stmfd sp!, {r2-r12, lr} 67*ba9456acSSantosh Shilimkar ldr r12, =0x105 68*ba9456acSSantosh Shilimkar dsb 69*ba9456acSSantosh Shilimkar smc #0 70*ba9456acSSantosh Shilimkar ldmfd sp!, {r2-r12, pc} 71*ba9456acSSantosh ShilimkarENDPROC(omap_auxcoreboot_addr) 72*ba9456acSSantosh Shilimkar 73*ba9456acSSantosh ShilimkarENTRY(omap_read_auxcoreboot0) 74*ba9456acSSantosh Shilimkar stmfd sp!, {r2-r12, lr} 75*ba9456acSSantosh Shilimkar ldr r12, =0x103 76*ba9456acSSantosh Shilimkar dsb 77*ba9456acSSantosh Shilimkar smc #0 78*ba9456acSSantosh Shilimkar mov r0, r0, lsr #9 79*ba9456acSSantosh Shilimkar ldmfd sp!, {r2-r12, pc} 80*ba9456acSSantosh ShilimkarENDPROC(omap_read_auxcoreboot0) 81