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
25ENTRY(omap_smc1)
26	stmfd   sp!, {r2-r12, lr}
27	mov	r12, r0
28	mov 	r0, r1
29	dsb
30	smc	#0
31	ldmfd   sp!, {r2-r12, pc}
32ENDPROC(omap_smc1)
33
34/**
35 * u32 omap_smc2(u32 id, u32 falg, u32 pargs)
36 * Low level common routine for secure HAL and PPA APIs.
37 * @id: Application ID of HAL APIs
38 * @flag: Flag to indicate the criticality of operation
39 * @pargs: Physical address of parameter list starting
40 *	    with number of parametrs
41 */
42ENTRY(omap_smc2)
43	stmfd   sp!, {r4-r12, lr}
44	mov	r3, r2
45	mov	r2, r1
46	mov	r1, #0x0	@ Process ID
47	mov	r6, #0xff
48	mov	r12, #0x00	@ Secure Service ID
49	mov	r7, #0
50	mcr	p15, 0, r7, c7, c5, 6
51	dsb
52	dmb
53	smc	#0
54	ldmfd   sp!, {r4-r12, pc}
55ENDPROC(omap_smc2)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
56
57ENTRY(omap_modify_auxcoreboot0)
58	stmfd   sp!, {r1-r12, lr}
59	ldr	r12, =0x104
60	dsb
61	smc	#0
62	ldmfd   sp!, {r1-r12, pc}
63ENDPROC(omap_modify_auxcoreboot0)
64
65ENTRY(omap_auxcoreboot_addr)
66	stmfd   sp!, {r2-r12, lr}
67	ldr	r12, =0x105
68	dsb
69	smc	#0
70	ldmfd   sp!, {r2-r12, pc}
71ENDPROC(omap_auxcoreboot_addr)
72
73ENTRY(omap_read_auxcoreboot0)
74	stmfd   sp!, {r2-r12, lr}
75	ldr	r12, =0x103
76	dsb
77	smc	#0
78	mov	r0, r0, lsr #9
79	ldmfd   sp!, {r2-r12, pc}
80ENDPROC(omap_read_auxcoreboot0)

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