1ba9456acSSantosh Shilimkar/* 2*a33f1788SPali Rohár * OMAP34xx and OMAP44xx secure APIs file. 3ba9456acSSantosh Shilimkar * 4ba9456acSSantosh Shilimkar * Copyright (C) 2010 Texas Instruments, Inc. 5ba9456acSSantosh Shilimkar * Written by Santosh Shilimkar <santosh.shilimkar@ti.com> 6ba9456acSSantosh Shilimkar * 7*a33f1788SPali Rohár * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg> 8*a33f1788SPali Rohár * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com> 9ba9456acSSantosh Shilimkar * 10ba9456acSSantosh Shilimkar * This program is free software,you can redistribute it and/or modify 11ba9456acSSantosh Shilimkar * it under the terms of the GNU General Public License version 2 as 12ba9456acSSantosh Shilimkar * published by the Free Software Foundation. 13ba9456acSSantosh Shilimkar */ 14ba9456acSSantosh Shilimkar 15ba9456acSSantosh Shilimkar#include <linux/linkage.h> 16ba9456acSSantosh Shilimkar 17ba9456acSSantosh Shilimkar/* 18ba9456acSSantosh Shilimkar * This is common routine to manage secure monitor API 19ba9456acSSantosh Shilimkar * used to modify the PL310 secure registers. 20ba9456acSSantosh Shilimkar * 'r0' contains the value to be modified and 'r12' contains 21ba9456acSSantosh Shilimkar * the monitor API number. It uses few CPU registers 22ba9456acSSantosh Shilimkar * internally and hence they need be backed up including 23ba9456acSSantosh Shilimkar * link register "lr". 24ba9456acSSantosh Shilimkar * Function signature : void omap_smc1(u32 fn, u32 arg) 25ba9456acSSantosh Shilimkar */ 26ba9456acSSantosh Shilimkar 27ba9456acSSantosh ShilimkarENTRY(omap_smc1) 28ba9456acSSantosh Shilimkar stmfd sp!, {r2-r12, lr} 29ba9456acSSantosh Shilimkar mov r12, r0 30ba9456acSSantosh Shilimkar mov r0, r1 31ba9456acSSantosh Shilimkar dsb 32ba9456acSSantosh Shilimkar smc #0 33ba9456acSSantosh Shilimkar ldmfd sp!, {r2-r12, pc} 34ba9456acSSantosh ShilimkarENDPROC(omap_smc1) 35ba9456acSSantosh Shilimkar 36ba9456acSSantosh Shilimkar/** 37ba9456acSSantosh Shilimkar * u32 omap_smc2(u32 id, u32 falg, u32 pargs) 38ba9456acSSantosh Shilimkar * Low level common routine for secure HAL and PPA APIs. 39ba9456acSSantosh Shilimkar * @id: Application ID of HAL APIs 40ba9456acSSantosh Shilimkar * @flag: Flag to indicate the criticality of operation 41ba9456acSSantosh Shilimkar * @pargs: Physical address of parameter list starting 42ba9456acSSantosh Shilimkar * with number of parametrs 43ba9456acSSantosh Shilimkar */ 44ba9456acSSantosh ShilimkarENTRY(omap_smc2) 45ba9456acSSantosh Shilimkar stmfd sp!, {r4-r12, lr} 46ba9456acSSantosh Shilimkar mov r3, r2 47ba9456acSSantosh Shilimkar mov r2, r1 48ba9456acSSantosh Shilimkar mov r1, #0x0 @ Process ID 49ba9456acSSantosh Shilimkar mov r6, #0xff 50ba9456acSSantosh Shilimkar mov r12, #0x00 @ Secure Service ID 51ba9456acSSantosh Shilimkar mov r7, #0 52ba9456acSSantosh Shilimkar mcr p15, 0, r7, c7, c5, 6 53ba9456acSSantosh Shilimkar dsb 54ba9456acSSantosh Shilimkar dmb 55ba9456acSSantosh Shilimkar smc #0 56ba9456acSSantosh Shilimkar ldmfd sp!, {r4-r12, pc} 57ba9456acSSantosh ShilimkarENDPROC(omap_smc2) 58ba9456acSSantosh Shilimkar 59*a33f1788SPali Rohár/** 60*a33f1788SPali Rohár * u32 omap_smc3(u32 service_id, u32 process_id, u32 flag, u32 pargs) 61*a33f1788SPali Rohár * Low level common routine for secure HAL and PPA APIs via smc #1 62*a33f1788SPali Rohár * r0 - @service_id: Secure Service ID 63*a33f1788SPali Rohár * r1 - @process_id: Process ID 64*a33f1788SPali Rohár * r2 - @flag: Flag to indicate the criticality of operation 65*a33f1788SPali Rohár * r3 - @pargs: Physical address of parameter list 66*a33f1788SPali Rohár */ 67*a33f1788SPali RohárENTRY(omap_smc3) 68*a33f1788SPali Rohár stmfd sp!, {r4-r11, lr} 69*a33f1788SPali Rohár mov r12, r0 @ Copy the secure service ID 70*a33f1788SPali Rohár mov r6, #0xff @ Indicate new Task call 71*a33f1788SPali Rohár dsb @ Memory Barrier (not sure if needed, copied from omap_smc2) 72*a33f1788SPali Rohár smc #1 @ Call PPA service 73*a33f1788SPali Rohár ldmfd sp!, {r4-r11, pc} 74*a33f1788SPali RohárENDPROC(omap_smc3) 75*a33f1788SPali Rohár 76ba9456acSSantosh ShilimkarENTRY(omap_modify_auxcoreboot0) 77ba9456acSSantosh Shilimkar stmfd sp!, {r1-r12, lr} 78ba9456acSSantosh Shilimkar ldr r12, =0x104 79ba9456acSSantosh Shilimkar dsb 80ba9456acSSantosh Shilimkar smc #0 81ba9456acSSantosh Shilimkar ldmfd sp!, {r1-r12, pc} 82ba9456acSSantosh ShilimkarENDPROC(omap_modify_auxcoreboot0) 83ba9456acSSantosh Shilimkar 84ba9456acSSantosh ShilimkarENTRY(omap_auxcoreboot_addr) 85ba9456acSSantosh Shilimkar stmfd sp!, {r2-r12, lr} 86ba9456acSSantosh Shilimkar ldr r12, =0x105 87ba9456acSSantosh Shilimkar dsb 88ba9456acSSantosh Shilimkar smc #0 89ba9456acSSantosh Shilimkar ldmfd sp!, {r2-r12, pc} 90ba9456acSSantosh ShilimkarENDPROC(omap_auxcoreboot_addr) 91ba9456acSSantosh Shilimkar 92ba9456acSSantosh ShilimkarENTRY(omap_read_auxcoreboot0) 93ba9456acSSantosh Shilimkar stmfd sp!, {r2-r12, lr} 94ba9456acSSantosh Shilimkar ldr r12, =0x103 95ba9456acSSantosh Shilimkar dsb 96ba9456acSSantosh Shilimkar smc #0 97ba9456acSSantosh Shilimkar mov r0, r0, lsr #9 98ba9456acSSantosh Shilimkar ldmfd sp!, {r2-r12, pc} 99ba9456acSSantosh ShilimkarENDPROC(omap_read_auxcoreboot0) 100