1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
| /*
| * OMAP34xx and OMAP44xx secure APIs file.
| *
| * Copyright (C) 2010 Texas Instruments, Inc.
| * Written by Santosh Shilimkar <santosh.shilimkar@ti.com>
| *
| * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
| * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
| *
| * 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 <linux/linkage.h>
|
| /*
| * 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)
|
| /**
| * u32 omap_smc2(u32 id, u32 falg, u32 pargs)
| * Low level common routine for secure HAL and PPA APIs.
| * @id: Application ID of HAL APIs
| * @flag: Flag to indicate the criticality of operation
| * @pargs: Physical address of parameter list starting
| * with number of parametrs
| */
| ENTRY(omap_smc2)
| stmfd sp!, {r4-r12, lr}
| mov r3, r2
| mov r2, r1
| mov r1, #0x0 @ Process ID
| mov r6, #0xff
| mov r12, #0x00 @ Secure Service ID
| mov r7, #0
| mcr p15, 0, r7, c7, c5, 6
| dsb
| dmb
| smc #0
| ldmfd sp!, {r4-r12, pc}
| ENDPROC(omap_smc2)
|
| /**
| * u32 omap_smc3(u32 service_id, u32 process_id, u32 flag, u32 pargs)
| * Low level common routine for secure HAL and PPA APIs via smc #1
| * r0 - @service_id: Secure Service ID
| * r1 - @process_id: Process ID
| * r2 - @flag: Flag to indicate the criticality of operation
| * r3 - @pargs: Physical address of parameter list
| */
| ENTRY(omap_smc3)
| stmfd sp!, {r4-r11, lr}
| mov r12, r0 @ Copy the secure service ID
| mov r6, #0xff @ Indicate new Task call
| dsb @ Memory Barrier (not sure if needed, copied from omap_smc2)
| smc #1 @ Call PPA service
| ldmfd sp!, {r4-r11, pc}
| ENDPROC(omap_smc3)
|
| 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
| ldmfd sp!, {r2-r12, pc}
| ENDPROC(omap_read_auxcoreboot0)
|
|
