| Santosh Shilimkar | d660f9a | 2010-03-11 07:33:46 +0000 | [diff] [blame] | 1 | /* |
| 2 | * OMAP44xx secure APIs file. |
| 3 | * |
| 4 | * Copyright (C) 2010 Texas Instruments, Inc. |
| 5 | * Written by Santosh Shilimkar <santosh.shilimkar@ti.com> |
| 6 | * |
| 7 | * |
| 8 | * This program is free software,you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/linkage.h> |
| 14 | |
| 15 | /* |
| 16 | * This is common routine to manage secure monitor API |
| 17 | * used to modify the PL310 secure registers. |
| 18 | * 'r0' contains the value to be modified and 'r12' contains |
| 19 | * the monitor API number. It uses few CPU registers |
| 20 | * internally and hence they need be backed up including |
| 21 | * link register "lr". |
| 22 | * Function signature : void omap_smc1(u32 fn, u32 arg) |
| 23 | */ |
| 24 | |
| 25 | ENTRY(omap_smc1) |
| 26 | stmfd sp!, {r2-r12, lr} |
| 27 | mov r12, r0 |
| 28 | mov r0, r1 |
| 29 | dsb |
| Richard Woodruff | df571c4a | 2010-04-07 07:47:21 +0000 | [diff] [blame] | 30 | smc #0 |
| Santosh Shilimkar | d660f9a | 2010-03-11 07:33:46 +0000 | [diff] [blame] | 31 | ldmfd sp!, {r2-r12, pc} |
| Dave Martin | f96bdfa | 2011-03-04 15:33:54 +0000 | [diff] [blame] | 32 | ENDPROC(omap_smc1) |
| Santosh Shilimkar | 3f9eaf0 | 2010-08-02 13:18:18 +0300 | [diff] [blame] | 33 | |
| 34 | ENTRY(omap_modify_auxcoreboot0) |
| 35 | stmfd sp!, {r1-r12, lr} |
| 36 | ldr r12, =0x104 |
| 37 | dsb |
| 38 | smc #0 |
| 39 | ldmfd sp!, {r1-r12, pc} |
| Dave Martin | f96bdfa | 2011-03-04 15:33:54 +0000 | [diff] [blame] | 40 | ENDPROC(omap_modify_auxcoreboot0) |
| Santosh Shilimkar | 3f9eaf0 | 2010-08-02 13:18:18 +0300 | [diff] [blame] | 41 | |
| 42 | ENTRY(omap_auxcoreboot_addr) |
| 43 | stmfd sp!, {r2-r12, lr} |
| 44 | ldr r12, =0x105 |
| 45 | dsb |
| 46 | smc #0 |
| 47 | ldmfd sp!, {r2-r12, pc} |
| Dave Martin | f96bdfa | 2011-03-04 15:33:54 +0000 | [diff] [blame] | 48 | ENDPROC(omap_auxcoreboot_addr) |
| Santosh Shilimkar | 3f9eaf0 | 2010-08-02 13:18:18 +0300 | [diff] [blame] | 49 | |
| 50 | ENTRY(omap_read_auxcoreboot0) |
| 51 | stmfd sp!, {r2-r12, lr} |
| 52 | ldr r12, =0x103 |
| 53 | dsb |
| 54 | smc #0 |
| 55 | mov r0, r0, lsr #9 |
| 56 | ldmfd sp!, {r2-r12, pc} |
| Dave Martin | f96bdfa | 2011-03-04 15:33:54 +0000 | [diff] [blame] | 57 | ENDPROC(omap_read_auxcoreboot0) |