sip.c
861 Bytes
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
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2017 NXP
*/
#include <common.h>
#include <asm/arch/sys_proto.h>
unsigned long call_imx_sip(unsigned long id, unsigned long reg0,
unsigned long reg1, unsigned long reg2,
unsigned long reg3)
{
struct pt_regs regs;
regs.regs[0] = id;
regs.regs[1] = reg0;
regs.regs[2] = reg1;
regs.regs[3] = reg2;
regs.regs[4] = reg3;
smc_call(®s);
return regs.regs[0];
}
/*
* Do an SMC call to return 2 registers by having reg1 passed in by reference
*/
unsigned long call_imx_sip_ret2(unsigned long id, unsigned long reg0,
unsigned long *reg1, unsigned long reg2,
unsigned long reg3)
{
struct pt_regs regs;
regs.regs[0] = id;
regs.regs[1] = reg0;
regs.regs[2] = *reg1;
regs.regs[3] = reg2;
regs.regs[4] = reg3;
smc_call(®s);
*reg1 = regs.regs[1];
return regs.regs[0];
}