u-boot/arch/arm/mach-imx/sip.c
Peng Fan de274663f5 imx: add sip function
Add SiP (Silicon Provider) services function to issue
SMC call to Arm Trusted Firmware.

More SiP information could be found in
  https://github.com/ARM-software/arm-trusted-firmware/blob/master/
  docs/arm-sip-service.rst

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
2018-02-04 12:00:58 +01:00

23 lines
389 B
C

/*
* Copyright 2017 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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)
{
struct pt_regs regs;
regs.regs[0] = id;
regs.regs[1] = reg0;
regs.regs[2] = reg1;
regs.regs[3] = reg2;
smc_call(&regs);
return regs.regs[0];
}